一个网站能放多少关键词/全网关键词搜索排行

一个网站能放多少关键词,全网关键词搜索排行,唐山网站怎么做seo,wordpress评论图片Sentinel之前已经搭建和应用成功了，但是它有一个很大的缺点就是官方没有提供持久化的方案，从项目源码上看感觉这款工具也没有完成的太好，所以需要我们去对它进行二次开发。要补充的功能大概如下： 1、将Sentinel接入nacos中&#…

Sentinel之前已经搭建和应用成功了，但是它有一个很大的缺点就是官方没有提供持久化的方案，从项目源码上看感觉这款工具也没有完成的太好，所以需要我们去对它进行二次开发。要补充的功能大概如下：

1、将Sentinel接入nacos中，sentinel从nacos上进行参数读写。

2、使用sentinel的客户端开启nacos，可以读取nacos上关于sentinel的配置参数。

Sentinel接入Nacos实现读写功能。

1、下载sentinel的源码并且导入IDE，源码地址：GitHub - alibaba/Sentinel: A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

2、找到项目中sentinel-dashboard这个module，我们就修改这个module下面的代码。

3、修改pom文件，源文件中sentinel-datasource-nacos这个依赖只用来做test，现在要加入到主功能中，去掉<scope>test</scope>。

        <dependency><groupId>com.alibaba.csp</groupId><artifactId>sentinel-datasource-nacos</artifactId></dependency>

4、修改application.yaml文件，添加nacos的配置信息，之后的代码需要用到。

nacos.server-addr=192.168.3.54:80
nacos.namespace=sentinel-rules
nacos.group=devops
nacos.username=nacos
nacos.password=nacos

5、在package路径com.alibaba.csp.sentinel.dashboard.rule下创建子路径nacos，将sentinel接入nacos的功能写入到这个路径下。官方在test里面其实写了限流的配置，所以我也是参考官方代码完成的其他几个功能，这也就解释了为什么pom里的依赖是test的原因。

6、先创建一个工具类，提前写一些nacos的配置项参数。

package com.alibaba.csp.sentinel.dashboard.rule.nacos;public final class NacosConfigUtil {// Nacos分组ID 要和客户端一样
//    public static final String GROUP_ID = "devops";// 流控规则后缀 要和客户端一样public static final String FLOW_DATA_ID_POSTFIX = "-flow-rules";//熔断规则后缀 要和客户端一样public static final String DEGRADE_DATA_ID_POSTFIX = "-degrade-rules";//热点规则public static final String PARAM_FLOW_DATA_ID_POSTFIX = "-param-flow-rules";//系统规则public static final String SYSTEM_DATA_ID_POSTFIX = "-system-rules";//授权规则public static final String AUTHORITY_DATA_ID_POSTFIX = "-authority-rules";public static final String CLUSTER_MAP_DATA_ID_POSTFIX = "-cluster-map";/*** cc for `cluster-client`*/public static final String CLIENT_CONFIG_DATA_ID_POSTFIX = "-cc-config";/*** cs for `cluster-server`*/public static final String SERVER_TRANSPORT_CONFIG_DATA_ID_POSTFIX = "-cs-transport-config";public static final String SERVER_FLOW_CONFIG_DATA_ID_POSTFIX = "-cs-flow-config";public static final String SERVER_NAMESPACE_SET_DATA_ID_POSTFIX = "-cs-namespace-set";private NacosConfigUtil() {}
}

7、创建一个config，实现与nacos的连接。

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.*;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.fastjson.JSON;
import com.alibaba.nacos.api.PropertyKeyConst;
import com.alibaba.nacos.api.config.ConfigFactory;
import com.alibaba.nacos.api.config.ConfigService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;import java.util.List;
import java.util.Properties;@Configuration
public class NacosConfig {@Value("${nacos.server-addr:localhost:8848}")private String serverAddr;@Value("${nacos.namespace:sentinel-rules}")private String namespace;@Value("${nacos.group:devops}")private String group;@Value("${nacos.username:nacos}")private String username;@Value("${nacos.password:nacos}")private String password;@Beanpublic Converter<List<FlowRuleEntity>, String> flowRuleEntityEncoder() {return JSON::toJSONString;}@Beanpublic Converter<List<DegradeRuleEntity>, String> degradeRuleEntityEncoder() {return JSON::toJSONString;}@Beanpublic Converter<List<ParamFlowRuleEntity>, String> paramFlowRuleEntityEncoder() {return JSON::toJSONString;}@Beanpublic Converter<List<SystemRuleEntity>, String> systemRuleEntityEncoder() {return JSON::toJSONString;}@Beanpublic Converter<List<AuthorityRuleEntity>, String> authorityRuleEntityEncoder() {return JSON::toJSONString;}@Beanpublic Converter<String, List<FlowRuleEntity>> flowRuleEntityDecoder() {return s -> JSON.parseArray(s, FlowRuleEntity.class);}@Beanpublic Converter<String, List<DegradeRuleEntity>> degradeRuleEntityDecoder() {return s -> JSON.parseArray(s, DegradeRuleEntity.class);}@Beanpublic Converter<String, List<ParamFlowRuleEntity>> paramFlowRuleEntityDecoder() {return s -> JSON.parseArray(s, ParamFlowRuleEntity.class);}@Beanpublic Converter<String, List<SystemRuleEntity>> systemRuleEntityDecoder() {return s -> JSON.parseArray(s, SystemRuleEntity.class);}@Beanpublic Converter<String, List<AuthorityRuleEntity>> authorityRuleEntityDecoder() {return s -> JSON.parseArray(s, AuthorityRuleEntity.class);}@Beanpublic ConfigService nacosConfigService() throws Exception {// 配置注册中心 和 namespaceProperties properties = new Properties();properties.put(PropertyKeyConst.SERVER_ADDR, this.serverAddr);properties.put(PropertyKeyConst.NAMESPACE, this.namespace); // 命名空间，要和客户端配置的一样properties.put(PropertyKeyConst.USERNAME, this.username);properties.put(PropertyKeyConst.PASSWORD, this.password);return ConfigFactory.createConfigService(properties);}
}

8、创建限流功能的一对功能文件：FlowRuleNacosProvider和FlowRuleNacosPublisher，FlowRuleNacosProvider就是让sentinel从nacos上获取配置，我们默认就用json格式，所以在上面的NacosConfig文件中有json字符串转对象的多个方法，FlowRuleNacosPublisher就是sentinel页面修改配置之后更新nacos。

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.StringUtil;
import com.alibaba.nacos.api.config.ConfigService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.ArrayList;
import java.util.List;@Component("flowRuleNacosProvider")
public class FlowRuleNacosProvider implements DynamicRuleProvider<List<FlowRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<String, List<FlowRuleEntity>> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic List<FlowRuleEntity> getRules(String appName) throws Exception {String rules = configService.getConfig(appName + NacosConfigUtil.FLOW_DATA_ID_POSTFIX, group, 3000);if (StringUtil.isEmpty(rules)) {return new ArrayList<>();}return converter.convert(rules);}
}


package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.AssertUtil;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.ConfigType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.List;@Component("flowRuleNacosPublisher")
public class FlowRuleNacosPublisher implements DynamicRulePublisher<List<FlowRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<List<FlowRuleEntity>, String> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic void publish(String app, List<FlowRuleEntity> rules) throws Exception {AssertUtil.notEmpty(app, "app name cannot be empty");if (rules == null) {return;}configService.publishConfig(app + NacosConfigUtil.FLOW_DATA_ID_POSTFIX, group, converter.convert(rules), ConfigType.JSON.getType());}
}

9、熔断也是两个文件，DegradeRuleNacosProvider和DegradeRuleNacosPublisher，就是仿照限流两个文件写的，里面改改参数即可，下面3个功能也一样。

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.StringUtil;
import com.alibaba.nacos.api.config.ConfigService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.ArrayList;
import java.util.List;@Component("degradeRuleNacosProvider")
public class DegradeRuleNacosProvider implements DynamicRuleProvider<List<DegradeRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<String, List<DegradeRuleEntity>> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic List<DegradeRuleEntity> getRules(String appName) throws Exception {String rules = configService.getConfig(appName + NacosConfigUtil.DEGRADE_DATA_ID_POSTFIX, group, 3000);if (StringUtil.isEmpty(rules)) {return new ArrayList<>();}return converter.convert(rules);}
}

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.AssertUtil;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.ConfigType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.List;@Component("degradeRuleNacosPublisher")
public class DegradeRuleNacosPublisher implements DynamicRulePublisher<List<DegradeRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<List<DegradeRuleEntity>, String> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic void publish(String app, List<DegradeRuleEntity> rules) throws Exception {AssertUtil.notEmpty(app, "app name cannot be empty");if (rules == null) {return;}configService.publishConfig(app + NacosConfigUtil.DEGRADE_DATA_ID_POSTFIX, group, converter.convert(rules), ConfigType.JSON.getType());}
}

10、热点规则

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.StringUtil;
import com.alibaba.nacos.api.config.ConfigService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.ArrayList;
import java.util.List;@Component("paramFlowRuleNacosProvider")
public class ParamFlowRuleNacosProvider implements DynamicRuleProvider<List<ParamFlowRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<String, List<ParamFlowRuleEntity>> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic List<ParamFlowRuleEntity> getRules(String appName) throws Exception {String rules = configService.getConfig(appName + NacosConfigUtil.PARAM_FLOW_DATA_ID_POSTFIX, group, 3000);if (StringUtil.isEmpty(rules)) {return new ArrayList<>();}return converter.convert(rules);}
}

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.AssertUtil;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.ConfigType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.List;@Component("paramFlowRuleNacosPublisher")
public class ParamFlowRuleNacosPublisher implements DynamicRulePublisher<List<ParamFlowRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<List<ParamFlowRuleEntity>, String> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic void publish(String app, List<ParamFlowRuleEntity> rules) throws Exception {AssertUtil.notEmpty(app, "app name cannot be empty");if (rules == null) {return;}configService.publishConfig(app + NacosConfigUtil.PARAM_FLOW_DATA_ID_POSTFIX, group, converter.convert(rules), ConfigType.JSON.getType());}
}

11、系统规则

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.SystemRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.StringUtil;
import com.alibaba.nacos.api.config.ConfigService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.ArrayList;
import java.util.List;@Component("systemRuleNacosProvider")
public class SystemRuleNacosProvider implements DynamicRuleProvider<List<SystemRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<String, List<SystemRuleEntity>> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic List<SystemRuleEntity> getRules(String appName) throws Exception {String rules = configService.getConfig(appName + NacosConfigUtil.SYSTEM_DATA_ID_POSTFIX, group, 3000);if (StringUtil.isEmpty(rules)) {return new ArrayList<>();}return converter.convert(rules);}
}

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.SystemRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.AssertUtil;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.ConfigType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.List;@Component("systemRuleNacosPublisher")
public class SystemRuleNacosPublisher implements DynamicRulePublisher<List<SystemRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<List<SystemRuleEntity>, String> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic void publish(String app, List<SystemRuleEntity> rules) throws Exception {AssertUtil.notEmpty(app, "app name cannot be empty");if (rules == null) {return;}configService.publishConfig(app + NacosConfigUtil.SYSTEM_DATA_ID_POSTFIX, group, converter.convert(rules), ConfigType.JSON.getType());}
}

12、授权规则

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.StringUtil;
import com.alibaba.nacos.api.config.ConfigService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.ArrayList;
import java.util.List;@Component("authorityRuleNacosProvider")
public class AuthorityRuleNacosProvider implements DynamicRuleProvider<List<AuthorityRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<String, List<AuthorityRuleEntity>> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic List<AuthorityRuleEntity> getRules(String appName) throws Exception {String rules = configService.getConfig(appName + NacosConfigUtil.AUTHORITY_DATA_ID_POSTFIX, group, 3000);if (StringUtil.isEmpty(rules)) {return new ArrayList<>();}return converter.convert(rules);}
}

package com.alibaba.csp.sentinel.dashboard.rule.nacos;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.datasource.Converter;
import com.alibaba.csp.sentinel.util.AssertUtil;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.ConfigType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;import java.util.List;@Component("authorityRuleNacosPublisher")
public class AuthorityRuleNacosPublisher implements DynamicRulePublisher<List<AuthorityRuleEntity>> {@Autowiredprivate ConfigService configService;@Autowiredprivate Converter<List<AuthorityRuleEntity>, String> converter;@Value("${nacos.group:devops}")private String group;@Overridepublic void publish(String app, List<AuthorityRuleEntity> rules) throws Exception {AssertUtil.notEmpty(app, "app name cannot be empty");if (rules == null) {return;}configService.publishConfig(app + NacosConfigUtil.AUTHORITY_DATA_ID_POSTFIX, group, converter.convert(rules), ConfigType.JSON.getType());}
}

13、还要修改Controller，因为web页面调用的时候要改成我们上面做的这些收发功能，限流这个Controller已经有了，但是有两个，我们用V1这个，有些教程用的V2，我建议用V1，因为官方还没有正式使用V2，而且这个工具更新不是太积极。

主要修改就是把com.alibaba.csp.sentinel.dashboard.controller.FlowControllerV1中的SentinelApiClient 替换成DynamicRuleProvider和DynamicRulePublisher，这里改动并不大，我直接贴出来更新后的文件做参考。

/** Copyright 1999-2018 Alibaba Group Holding Ltd.** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.alibaba.csp.sentinel.dashboard.controller;import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
import com.alibaba.csp.sentinel.dashboard.domain.Result;
import com.alibaba.csp.sentinel.dashboard.repository.rule.InMemoryRuleRepositoryAdapter;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.util.StringUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.*;import java.util.Date;
import java.util.List;
import java.util.concurrent.ExecutionException;@RestController
@RequestMapping(value = "/v1/flow")
public class FlowControllerV1 {private final Logger logger = LoggerFactory.getLogger(FlowControllerV1.class);@Autowiredprivate InMemoryRuleRepositoryAdapter<FlowRuleEntity> repository;@Autowired
//    @Qualifier("flowRuleDefaultProvider")@Qualifier("flowRuleNacosProvider")private DynamicRuleProvider<List<FlowRuleEntity>> ruleProvider;@Autowired
//    @Qualifier("flowRuleDefaultPublisher")@Qualifier("flowRuleNacosPublisher")private DynamicRulePublisher<List<FlowRuleEntity>> rulePublisher;@GetMapping("/rules")@AuthAction(PrivilegeType.READ_RULE)public Result<List<FlowRuleEntity>> apiQueryMachineRules(@RequestParam String app) {if (StringUtil.isEmpty(app)) {return Result.ofFail(-1, "app can't be null or empty");}try {List<FlowRuleEntity> rules = ruleProvider.getRules(app);if (rules != null && !rules.isEmpty()) {for (FlowRuleEntity entity : rules) {entity.setApp(app);if (entity.getClusterConfig() != null && entity.getClusterConfig().getFlowId() != null) {entity.setId(entity.getClusterConfig().getFlowId());}}}rules = repository.saveAll(rules);return Result.ofSuccess(rules);} catch (Throwable throwable) {logger.error("Error when querying flow rules", throwable);return Result.ofThrowable(-1, throwable);}}private <R> Result<R> checkEntityInternal(FlowRuleEntity entity) {if (entity == null) {return Result.ofFail(-1, "invalid body");}if (StringUtil.isBlank(entity.getApp())) {return Result.ofFail(-1, "app can't be null or empty");}if (StringUtil.isBlank(entity.getLimitApp())) {return Result.ofFail(-1, "limitApp can't be null or empty");}if (StringUtil.isBlank(entity.getResource())) {return Result.ofFail(-1, "resource can't be null or empty");}if (entity.getGrade() == null) {return Result.ofFail(-1, "grade can't be null");}if (entity.getGrade() != 0 && entity.getGrade() != 1) {return Result.ofFail(-1, "grade must be 0 or 1, but " + entity.getGrade() + " got");}if (entity.getCount() == null || entity.getCount() < 0) {return Result.ofFail(-1, "count should be at lease zero");}if (entity.getStrategy() == null) {return Result.ofFail(-1, "strategy can't be null");}if (entity.getStrategy() != 0 && StringUtil.isBlank(entity.getRefResource())) {return Result.ofFail(-1, "refResource can't be null or empty when strategy!=0");}if (entity.getControlBehavior() == null) {return Result.ofFail(-1, "controlBehavior can't be null");}int controlBehavior = entity.getControlBehavior();if (controlBehavior == 1 && entity.getWarmUpPeriodSec() == null) {return Result.ofFail(-1, "warmUpPeriodSec can't be null when controlBehavior==1");}if (controlBehavior == 2 && entity.getMaxQueueingTimeMs() == null) {return Result.ofFail(-1, "maxQueueingTimeMs can't be null when controlBehavior==2");}if (entity.isClusterMode() && entity.getClusterConfig() == null) {return Result.ofFail(-1, "cluster config should be valid");}return null;}@PostMapping("/rule")@AuthAction(value = PrivilegeType.WRITE_RULE)public Result<FlowRuleEntity> apiAddFlowRule(@RequestBody FlowRuleEntity entity) {Result<FlowRuleEntity> checkResult = checkEntityInternal(entity);if (checkResult != null) {return checkResult;}entity.setId(null);Date date = new Date();entity.setGmtCreate(date);entity.setGmtModified(date);entity.setLimitApp(entity.getLimitApp().trim());entity.setResource(entity.getResource().trim());try {entity = repository.save(entity);publishRules(entity.getApp());} catch (Throwable throwable) {logger.error("Failed to add flow rule", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(entity);}@PutMapping("/save.json")@AuthAction(PrivilegeType.WRITE_RULE)public Result<FlowRuleEntity> apiUpdateFlowRule(Long id, String app,String limitApp, String resource, Integer grade,Double count, Integer strategy, String refResource,Integer controlBehavior, Integer warmUpPeriodSec,Integer maxQueueingTimeMs) {if (id == null) {return Result.ofFail(-1, "id can't be null");}FlowRuleEntity entity = repository.findById(id);if (entity == null) {return Result.ofFail(-1, "id " + id + " dose not exist");}if (StringUtil.isNotBlank(app)) {entity.setApp(app.trim());}if (StringUtil.isNotBlank(limitApp)) {entity.setLimitApp(limitApp.trim());}if (StringUtil.isNotBlank(resource)) {entity.setResource(resource.trim());}if (grade != null) {if (grade != 0 && grade != 1) {return Result.ofFail(-1, "grade must be 0 or 1, but " + grade + " got");}entity.setGrade(grade);}if (count != null) {entity.setCount(count);}if (strategy != null) {if (strategy != 0 && strategy != 1 && strategy != 2) {return Result.ofFail(-1, "strategy must be in [0, 1, 2], but " + strategy + " got");}entity.setStrategy(strategy);if (strategy != 0) {if (StringUtil.isBlank(refResource)) {return Result.ofFail(-1, "refResource can't be null or empty when strategy!=0");}entity.setRefResource(refResource.trim());}}if (controlBehavior != null) {if (controlBehavior != 0 && controlBehavior != 1 && controlBehavior != 2) {return Result.ofFail(-1, "controlBehavior must be in [0, 1, 2], but " + controlBehavior + " got");}if (controlBehavior == 1 && warmUpPeriodSec == null) {return Result.ofFail(-1, "warmUpPeriodSec can't be null when controlBehavior==1");}if (controlBehavior == 2 && maxQueueingTimeMs == null) {return Result.ofFail(-1, "maxQueueingTimeMs can't be null when controlBehavior==2");}entity.setControlBehavior(controlBehavior);if (warmUpPeriodSec != null) {entity.setWarmUpPeriodSec(warmUpPeriodSec);}if (maxQueueingTimeMs != null) {entity.setMaxQueueingTimeMs(maxQueueingTimeMs);}}Date date = new Date();entity.setGmtModified(date);try {entity = repository.save(entity);if (entity == null) {return Result.ofFail(-1, "save entity fail: null");}publishRules(entity.getApp());return Result.ofSuccess(entity);} catch (Throwable t) {Throwable e = t instanceof ExecutionException ? t.getCause() : t;logger.error("Error when updating flow rules, app={}, ip={}, ruleId={}", entity.getApp(),entity.getIp(), id, e);return Result.ofFail(-1, e.getMessage());}}@DeleteMapping("/delete.json")@AuthAction(PrivilegeType.WRITE_RULE)public Result<Long> apiDeleteFlowRule(Long id) {if (id == null) {return Result.ofFail(-1, "id can't be null");}FlowRuleEntity oldEntity = repository.findById(id);if (oldEntity == null) {return Result.ofSuccess(null);}try {repository.delete(id);} catch (Exception e) {return Result.ofFail(-1, e.getMessage());}try {publishRules(oldEntity.getApp());return Result.ofSuccess(id);} catch (Throwable t) {Throwable e = t instanceof ExecutionException ? t.getCause() : t;logger.error("Error when deleting flow rules, app={}, ip={}, id={}", oldEntity.getApp(),oldEntity.getIp(), id, e);return Result.ofFail(-1, e.getMessage());}}private void publishRules(/*@NonNull*/ String app) throws Exception {List<FlowRuleEntity> rules = repository.findAllByApp(app);rulePublisher.publish(app, rules);}
}

14、剩下4个功能都只有1个Controller，也是一样改法。

/** Copyright 1999-2018 Alibaba Group Holding Ltd.** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.alibaba.csp.sentinel.dashboard.controller;import java.util.Date;
import java.util.List;
import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.slots.block.RuleConstant;
import com.alibaba.csp.sentinel.slots.block.degrade.circuitbreaker.CircuitBreakerStrategy;
import com.alibaba.csp.sentinel.util.StringUtil;import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity;
import com.alibaba.csp.sentinel.dashboard.domain.Result;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
@RequestMapping("/degrade")
public class DegradeController {private final Logger logger = LoggerFactory.getLogger(DegradeController.class);@Autowiredprivate RuleRepository<DegradeRuleEntity, Long> repository;@Autowiredprivate SentinelApiClient sentinelApiClient;@Autowiredprivate AppManagement appManagement;@Autowired@Qualifier("degradeRuleNacosProvider")private DynamicRuleProvider<List<DegradeRuleEntity>> ruleProvider;@Autowired@Qualifier("degradeRuleNacosPublisher")private DynamicRulePublisher<List<DegradeRuleEntity>> rulePublisher;@GetMapping("/rules.json")@AuthAction(PrivilegeType.READ_RULE)public Result<List<DegradeRuleEntity>> apiQueryMachineRules(String app, String ip, Integer port) {if (StringUtil.isEmpty(app)) {return Result.ofFail(-1, "app can't be null or empty");}if (StringUtil.isEmpty(ip)) {return Result.ofFail(-1, "ip can't be null or empty");}if (port == null) {return Result.ofFail(-1, "port can't be null");}try {//List<DegradeRuleEntity> rules = sentinelApiClient.fetchDegradeRuleOfMachine(app, ip, port);List<DegradeRuleEntity> rules = ruleProvider.getRules(app);rules = repository.saveAll(rules);return Result.ofSuccess(rules);} catch (Throwable throwable) {logger.error("queryApps error:", throwable);return Result.ofThrowable(-1, throwable);}}@PostMapping("/rule")@AuthAction(PrivilegeType.WRITE_RULE)public Result<DegradeRuleEntity> apiAddRule(@RequestBody DegradeRuleEntity entity) {Result<DegradeRuleEntity> checkResult = checkEntityInternal(entity);if (checkResult != null) {return checkResult;}Date date = new Date();entity.setGmtCreate(date);entity.setGmtModified(date);try {entity = repository.save(entity);} catch (Throwable t) {logger.error("Failed to add new degrade rule, app={}, ip={}", entity.getApp(), entity.getIp(), t);return Result.ofThrowable(-1, t);}try {publishRules(entity.getApp());} catch (Throwable throwable) {logger.error("Failed to add degrade rule", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(entity);}@PutMapping("/rule/{id}")@AuthAction(PrivilegeType.WRITE_RULE)public Result<DegradeRuleEntity> apiUpdateRule(@PathVariable("id") Long id,@RequestBody DegradeRuleEntity entity) {if (id == null || id <= 0) {return Result.ofFail(-1, "id can't be null or negative");}DegradeRuleEntity oldEntity = repository.findById(id);if (oldEntity == null) {return Result.ofFail(-1, "Degrade rule does not exist, id=" + id);}entity.setApp(oldEntity.getApp());entity.setIp(oldEntity.getIp());entity.setPort(oldEntity.getPort());entity.setId(oldEntity.getId());Result<DegradeRuleEntity> checkResult = checkEntityInternal(entity);if (checkResult != null) {return checkResult;}entity.setGmtCreate(oldEntity.getGmtCreate());entity.setGmtModified(new Date());try {entity = repository.save(entity);} catch (Throwable t) {logger.error("Failed to save degrade rule, id={}, rule={}", id, entity, t);return Result.ofThrowable(-1, t);}try {publishRules(entity.getApp());} catch (Throwable throwable) {logger.error("Failed to update degrade rule", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(entity);}@DeleteMapping("/rule/{id}")@AuthAction(PrivilegeType.DELETE_RULE)public Result<Long> delete(@PathVariable("id") Long id) {if (id == null) {return Result.ofFail(-1, "id can't be null");}DegradeRuleEntity oldEntity = repository.findById(id);if (oldEntity == null) {return Result.ofSuccess(null);}try {repository.delete(id);} catch (Throwable throwable) {logger.error("Failed to delete degrade rule, id={}", id, throwable);return Result.ofThrowable(-1, throwable);}try {publishRules(oldEntity.getApp());} catch (Throwable throwable) {logger.error("Failed to add delete rule", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(id);}//    private boolean publishRules(String app, String ip, Integer port) {
//        List<DegradeRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
//        return sentinelApiClient.setDegradeRuleOfMachine(app, ip, port, rules);
//    }private void publishRules(/*@NonNull*/ String app) throws Exception {List<DegradeRuleEntity> rules = repository.findAllByApp(app);rulePublisher.publish(app, rules);}private <R> Result<R> checkEntityInternal(DegradeRuleEntity entity) {if (StringUtil.isBlank(entity.getApp())) {return Result.ofFail(-1, "app can't be blank");}
//        if (StringUtil.isBlank(entity.getIp())) {
//            return Result.ofFail(-1, "ip can't be null or empty");
//        }
//        if (entity.getPort() == null || entity.getPort() <= 0) {
//            return Result.ofFail(-1, "invalid port: " + entity.getPort());
//        }if (StringUtil.isBlank(entity.getLimitApp())) {entity.setLimitApp("default");
//            return Result.ofFail(-1, "limitApp can't be null or empty");}if (StringUtil.isBlank(entity.getResource())) {return Result.ofFail(-1, "resource can't be null or empty");}Double threshold = entity.getCount();if (threshold == null || threshold < 0) {return Result.ofFail(-1, "invalid threshold: " + threshold);}Integer recoveryTimeoutSec = entity.getTimeWindow();if (recoveryTimeoutSec == null || recoveryTimeoutSec <= 0) {return Result.ofFail(-1, "recoveryTimeout should be positive");}Integer strategy = entity.getGrade();if (strategy == null) {return Result.ofFail(-1, "circuit breaker strategy cannot be null");}if (strategy < CircuitBreakerStrategy.SLOW_REQUEST_RATIO.getType()|| strategy > RuleConstant.DEGRADE_GRADE_EXCEPTION_COUNT) {return Result.ofFail(-1, "Invalid circuit breaker strategy: " + strategy);}if (entity.getMinRequestAmount()  == null || entity.getMinRequestAmount() <= 0) {return Result.ofFail(-1, "Invalid minRequestAmount");}if (entity.getStatIntervalMs() == null || entity.getStatIntervalMs() <= 0) {return Result.ofFail(-1, "Invalid statInterval");}if (strategy == RuleConstant.DEGRADE_GRADE_RT) {Double slowRatio = entity.getSlowRatioThreshold();if (slowRatio == null) {return Result.ofFail(-1, "SlowRatioThreshold is required for slow request ratio strategy");} else if (slowRatio < 0 || slowRatio > 1) {return Result.ofFail(-1, "SlowRatioThreshold should be in range: [0.0, 1.0]");}} else if (strategy == RuleConstant.DEGRADE_GRADE_EXCEPTION_RATIO) {if (threshold > 1) {return Result.ofFail(-1, "Ratio threshold should be in range: [0.0, 1.0]");}}return null;}
}
/** Copyright 1999-2018 Alibaba Group Holding Ltd.** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.alibaba.csp.sentinel.dashboard.controller;import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
import com.alibaba.csp.sentinel.dashboard.auth.AuthService;
import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
import com.alibaba.csp.sentinel.dashboard.client.CommandNotFoundException;
import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
import com.alibaba.csp.sentinel.dashboard.datasource.entity.SentinelVersion;
import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity;
import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
import com.alibaba.csp.sentinel.dashboard.domain.Result;
import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.dashboard.util.VersionUtils;
import com.alibaba.csp.sentinel.slots.block.RuleConstant;
import com.alibaba.csp.sentinel.util.StringUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.*;import java.util.Date;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.ExecutionException;/*** @author Eric Zhao* @since 0.2.1*/
@RestController
@RequestMapping(value = "/paramFlow")
public class ParamFlowRuleController {private final Logger logger = LoggerFactory.getLogger(ParamFlowRuleController.class);@Autowiredprivate SentinelApiClient sentinelApiClient;@Autowiredprivate AppManagement appManagement;@Autowiredprivate RuleRepository<ParamFlowRuleEntity, Long> repository;@Autowired@Qualifier("paramFlowRuleNacosProvider")private DynamicRuleProvider<List<ParamFlowRuleEntity>> ruleProvider;@Autowired@Qualifier("paramFlowRuleNacosPublisher")private DynamicRulePublisher<List<ParamFlowRuleEntity>> rulePublisher;private boolean checkIfSupported(String app, String ip, int port) {try {return Optional.ofNullable(appManagement.getDetailApp(app)).flatMap(e -> e.getMachine(ip, port)).flatMap(m -> VersionUtils.parseVersion(m.getVersion()).map(v -> v.greaterOrEqual(version020))).orElse(true);// If error occurred or cannot retrieve machine info, return true.} catch (Exception ex) {return true;}}@GetMapping("/rules")@AuthAction(PrivilegeType.READ_RULE)public Result<List<ParamFlowRuleEntity>> apiQueryAllRulesForMachine(@RequestParam String app,@RequestParam String ip,@RequestParam Integer port) {if (StringUtil.isEmpty(app)) {return Result.ofFail(-1, "app cannot be null or empty");}if (StringUtil.isEmpty(ip)) {return Result.ofFail(-1, "ip cannot be null or empty");}if (port == null || port <= 0) {return Result.ofFail(-1, "Invalid parameter: port");}if (!appManagement.isValidMachineOfApp(app, ip)) {return Result.ofFail(-1, "given ip does not belong to given app");}if (!checkIfSupported(app, ip, port)) {return unsupportedVersion();}try {
//            return sentinelApiClient.fetchParamFlowRulesOfMachine(app, ip, port)
//                .thenApply(repository::saveAll)
//                .thenApply(Result::ofSuccess)
//                .get();List<ParamFlowRuleEntity> rules = ruleProvider.getRules(app);rules = repository.saveAll(rules);return Result.ofSuccess(rules);} catch (ExecutionException ex) {logger.error("Error when querying parameter flow rules", ex.getCause());if (isNotSupported(ex.getCause())) {return unsupportedVersion();} else {return Result.ofThrowable(-1, ex.getCause());}} catch (Throwable throwable) {logger.error("Error when querying parameter flow rules", throwable);return Result.ofFail(-1, throwable.getMessage());}}private boolean isNotSupported(Throwable ex) {return ex instanceof CommandNotFoundException;}@PostMapping("/rule")@AuthAction(AuthService.PrivilegeType.WRITE_RULE)public Result<ParamFlowRuleEntity> apiAddParamFlowRule(@RequestBody ParamFlowRuleEntity entity) {Result<ParamFlowRuleEntity> checkResult = checkEntityInternal(entity);if (checkResult != null) {return checkResult;}if (!checkIfSupported(entity.getApp(), entity.getIp(), entity.getPort())) {return unsupportedVersion();}entity.setId(null);entity.getRule().setResource(entity.getResource().trim());Date date = new Date();entity.setGmtCreate(date);entity.setGmtModified(date);try {entity = repository.save(entity);
//            publishRules(entity.getApp(), entity.getIp(), entity.getPort()).get();publishRules(entity.getApp());return Result.ofSuccess(entity);} catch (ExecutionException ex) {logger.error("Error when adding new parameter flow rules", ex.getCause());if (isNotSupported(ex.getCause())) {return unsupportedVersion();} else {return Result.ofThrowable(-1, ex.getCause());}} catch (Throwable throwable) {logger.error("Error when adding new parameter flow rules", throwable);return Result.ofFail(-1, throwable.getMessage());}}private <R> Result<R> checkEntityInternal(ParamFlowRuleEntity entity) {if (entity == null) {return Result.ofFail(-1, "bad rule body");}if (StringUtil.isBlank(entity.getApp())) {return Result.ofFail(-1, "app can't be null or empty");}if (StringUtil.isBlank(entity.getIp())) {return Result.ofFail(-1, "ip can't be null or empty");}if (entity.getPort() == null || entity.getPort() <= 0) {return Result.ofFail(-1, "port can't be null");}if (entity.getRule() == null) {return Result.ofFail(-1, "rule can't be null");}if (StringUtil.isBlank(entity.getResource())) {return Result.ofFail(-1, "resource name cannot be null or empty");}if (entity.getCount() < 0) {return Result.ofFail(-1, "count should be valid");}if (entity.getGrade() != RuleConstant.FLOW_GRADE_QPS) {return Result.ofFail(-1, "Unknown mode (blockGrade) for parameter flow control");}if (entity.getParamIdx() == null || entity.getParamIdx() < 0) {return Result.ofFail(-1, "paramIdx should be valid");}if (entity.getDurationInSec() <= 0) {return Result.ofFail(-1, "durationInSec should be valid");}if (entity.getControlBehavior() < 0) {return Result.ofFail(-1, "controlBehavior should be valid");}return null;}@PutMapping("/rule/{id}")@AuthAction(AuthService.PrivilegeType.WRITE_RULE)public Result<ParamFlowRuleEntity> apiUpdateParamFlowRule(@PathVariable("id") Long id,@RequestBody ParamFlowRuleEntity entity) {if (id == null || id <= 0) {return Result.ofFail(-1, "Invalid id");}ParamFlowRuleEntity oldEntity = repository.findById(id);if (oldEntity == null) {return Result.ofFail(-1, "id " + id + " does not exist");}Result<ParamFlowRuleEntity> checkResult = checkEntityInternal(entity);if (checkResult != null) {return checkResult;}if (!checkIfSupported(entity.getApp(), entity.getIp(), entity.getPort())) {return unsupportedVersion();}entity.setId(id);Date date = new Date();entity.setGmtCreate(oldEntity.getGmtCreate());entity.setGmtModified(date);try {entity = repository.save(entity);
//            publishRules(entity.getApp(), entity.getIp(), entity.getPort()).get();publishRules(entity.getApp());return Result.ofSuccess(entity);} catch (ExecutionException ex) {logger.error("Error when updating parameter flow rules, id=" + id, ex.getCause());if (isNotSupported(ex.getCause())) {return unsupportedVersion();} else {return Result.ofThrowable(-1, ex.getCause());}} catch (Throwable throwable) {logger.error("Error when updating parameter flow rules, id=" + id, throwable);return Result.ofFail(-1, throwable.getMessage());}}@DeleteMapping("/rule/{id}")@AuthAction(PrivilegeType.DELETE_RULE)public Result<Long> apiDeleteRule(@PathVariable("id") Long id) {if (id == null) {return Result.ofFail(-1, "id cannot be null");}ParamFlowRuleEntity oldEntity = repository.findById(id);if (oldEntity == null) {return Result.ofSuccess(null);}try {repository.delete(id);
//            publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort()).get();publishRules(oldEntity.getApp());return Result.ofSuccess(id);} catch (ExecutionException ex) {logger.error("Error when deleting parameter flow rules", ex.getCause());if (isNotSupported(ex.getCause())) {return unsupportedVersion();} else {return Result.ofThrowable(-1, ex.getCause());}} catch (Throwable throwable) {logger.error("Error when deleting parameter flow rules", throwable);return Result.ofFail(-1, throwable.getMessage());}}//    private CompletableFuture<Void> publishRules(String app, String ip, Integer port) {
//        List<ParamFlowRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
//        return sentinelApiClient.setParamFlowRuleOfMachine(app, ip, port, rules);
//    }private void publishRules(/*@NonNull*/ String app) throws Exception {List<ParamFlowRuleEntity> rules = repository.findAllByApp(app);rulePublisher.publish(app, rules);}private <R> Result<R> unsupportedVersion() {return Result.ofFail(4041,"Sentinel client not supported for parameter flow control (unsupported version or dependency absent)");}private final SentinelVersion version020 = new SentinelVersion().setMinorVersion(2);
}

/** Copyright 1999-2018 Alibaba Group Holding Ltd.** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.alibaba.csp.sentinel.dashboard.controller;import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.SystemRuleEntity;
import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
import com.alibaba.csp.sentinel.dashboard.domain.Result;
import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.util.StringUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.util.Date;
import java.util.List;/*** @author leyou(lihao)*/
@RestController
@RequestMapping("/system")
public class SystemController {private final Logger logger = LoggerFactory.getLogger(SystemController.class);@Autowiredprivate RuleRepository<SystemRuleEntity, Long> repository;@Autowiredprivate SentinelApiClient sentinelApiClient;@Autowiredprivate AppManagement appManagement;@Autowired@Qualifier("systemRuleNacosProvider")private DynamicRuleProvider<List<SystemRuleEntity>> ruleProvider;@Autowired@Qualifier("systemRuleNacosPublisher")private DynamicRulePublisher<List<SystemRuleEntity>> rulePublisher;private <R> Result<R> checkBasicParams(String app, String ip, Integer port) {if (StringUtil.isEmpty(app)) {return Result.ofFail(-1, "app can't be null or empty");}if (StringUtil.isEmpty(ip)) {return Result.ofFail(-1, "ip can't be null or empty");}if (port == null) {return Result.ofFail(-1, "port can't be null");}if (!appManagement.isValidMachineOfApp(app, ip)) {return Result.ofFail(-1, "given ip does not belong to given app");}if (port <= 0 || port > 65535) {return Result.ofFail(-1, "port should be in (0, 65535)");}return null;}@GetMapping("/rules.json")@AuthAction(PrivilegeType.READ_RULE)public Result<List<SystemRuleEntity>> apiQueryMachineRules(String app, String ip,Integer port) {Result<List<SystemRuleEntity>> checkResult = checkBasicParams(app, ip, port);if (checkResult != null) {return checkResult;}try {
//            List<SystemRuleEntity> rules = sentinelApiClient.fetchSystemRuleOfMachine(app, ip, port);List<SystemRuleEntity> rules = ruleProvider.getRules(app);rules = repository.saveAll(rules);return Result.ofSuccess(rules);} catch (Throwable throwable) {logger.error("Query machine system rules error", throwable);return Result.ofThrowable(-1, throwable);}}private int countNotNullAndNotNegative(Number... values) {int notNullCount = 0;for (int i = 0; i < values.length; i++) {if (values[i] != null && values[i].doubleValue() >= 0) {notNullCount++;}}return notNullCount;}@RequestMapping("/new.json")@AuthAction(PrivilegeType.WRITE_RULE)public Result<SystemRuleEntity> apiAdd(String app, String ip, Integer port,Double highestSystemLoad, Double highestCpuUsage, Long avgRt,Long maxThread, Double qps) {Result<SystemRuleEntity> checkResult = checkBasicParams(app, ip, port);if (checkResult != null) {return checkResult;}int notNullCount = countNotNullAndNotNegative(highestSystemLoad, avgRt, maxThread, qps, highestCpuUsage);if (notNullCount != 1) {return Result.ofFail(-1, "only one of [highestSystemLoad, avgRt, maxThread, qps,highestCpuUsage] "+ "value must be set > 0, but " + notNullCount + " values get");}if (null != highestCpuUsage && highestCpuUsage > 1) {return Result.ofFail(-1, "highestCpuUsage must between [0.0, 1.0]");}SystemRuleEntity entity = new SystemRuleEntity();entity.setApp(app.trim());entity.setIp(ip.trim());entity.setPort(port);// -1 is a fake valueif (null != highestSystemLoad) {entity.setHighestSystemLoad(highestSystemLoad);} else {entity.setHighestSystemLoad(-1D);}if (null != highestCpuUsage) {entity.setHighestCpuUsage(highestCpuUsage);} else {entity.setHighestCpuUsage(-1D);}if (avgRt != null) {entity.setAvgRt(avgRt);} else {entity.setAvgRt(-1L);}if (maxThread != null) {entity.setMaxThread(maxThread);} else {entity.setMaxThread(-1L);}if (qps != null) {entity.setQps(qps);} else {entity.setQps(-1D);}Date date = new Date();entity.setGmtCreate(date);entity.setGmtModified(date);try {entity = repository.save(entity);} catch (Throwable throwable) {logger.error("Add SystemRule error", throwable);return Result.ofThrowable(-1, throwable);}
//        if (!publishRules(app, ip, port)) {
//            logger.warn("Publish system rules fail after rule add");
//        }try {publishRules(entity.getApp());} catch (Throwable throwable) {logger.error("Publish system rules fail after rule add", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(entity);}@GetMapping("/save.json")@AuthAction(PrivilegeType.WRITE_RULE)public Result<SystemRuleEntity> apiUpdateIfNotNull(Long id, String app, Double highestSystemLoad,Double highestCpuUsage, Long avgRt, Long maxThread, Double qps) {if (id == null) {return Result.ofFail(-1, "id can't be null");}SystemRuleEntity entity = repository.findById(id);if (entity == null) {return Result.ofFail(-1, "id " + id + " dose not exist");}if (StringUtil.isNotBlank(app)) {entity.setApp(app.trim());}if (highestSystemLoad != null) {if (highestSystemLoad < 0) {return Result.ofFail(-1, "highestSystemLoad must >= 0");}entity.setHighestSystemLoad(highestSystemLoad);}if (highestCpuUsage != null) {if (highestCpuUsage < 0) {return Result.ofFail(-1, "highestCpuUsage must >= 0");}if (highestCpuUsage > 1) {return Result.ofFail(-1, "highestCpuUsage must <= 1");}entity.setHighestCpuUsage(highestCpuUsage);}if (avgRt != null) {if (avgRt < 0) {return Result.ofFail(-1, "avgRt must >= 0");}entity.setAvgRt(avgRt);}if (maxThread != null) {if (maxThread < 0) {return Result.ofFail(-1, "maxThread must >= 0");}entity.setMaxThread(maxThread);}if (qps != null) {if (qps < 0) {return Result.ofFail(-1, "qps must >= 0");}entity.setQps(qps);}Date date = new Date();entity.setGmtModified(date);try {entity = repository.save(entity);} catch (Throwable throwable) {logger.error("save error:", throwable);return Result.ofThrowable(-1, throwable);}
//        if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
//            logger.info("publish system rules fail after rule update");
//        }try {publishRules(entity.getApp());} catch (Throwable throwable) {logger.error("publish system rules fail after rule update", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(entity);}@RequestMapping("/delete.json")@AuthAction(PrivilegeType.DELETE_RULE)public Result<?> delete(Long id) {if (id == null) {return Result.ofFail(-1, "id can't be null");}SystemRuleEntity oldEntity = repository.findById(id);if (oldEntity == null) {return Result.ofSuccess(null);}try {repository.delete(id);} catch (Throwable throwable) {logger.error("delete error:", throwable);return Result.ofThrowable(-1, throwable);}
//        if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) {
//            logger.info("publish system rules fail after rule delete");
//        }try {publishRules(oldEntity.getApp());} catch (Throwable throwable) {logger.error("publish system rules fail after rule delete", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(id);}//    private boolean publishRules(String app, String ip, Integer port) {
//        List<SystemRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
//        return sentinelApiClient.setSystemRuleOfMachine(app, ip, port, rules);
//    }private void publishRules(/*@NonNull*/ String app) throws Exception {List<SystemRuleEntity> rules = repository.findAllByApp(app);rulePublisher.publish(app, rules);}
}

/** Copyright 1999-2018 Alibaba Group Holding Ltd.** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.alibaba.csp.sentinel.dashboard.controller;import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity;
import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
import com.alibaba.csp.sentinel.dashboard.domain.Result;
import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
import com.alibaba.csp.sentinel.slots.block.RuleConstant;
import com.alibaba.csp.sentinel.util.StringUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.*;import java.util.Date;
import java.util.List;/*** @author Eric Zhao* @since 0.2.1*/
@RestController
@RequestMapping(value = "/authority")
public class AuthorityRuleController {private final Logger logger = LoggerFactory.getLogger(AuthorityRuleController.class);@Autowiredprivate SentinelApiClient sentinelApiClient;@Autowiredprivate RuleRepository<AuthorityRuleEntity, Long> repository;@Autowiredprivate AppManagement appManagement;@Autowired@Qualifier("authorityRuleNacosProvider")private DynamicRuleProvider<List<AuthorityRuleEntity>> ruleProvider;@Autowired@Qualifier("authorityRuleNacosPublisher")private DynamicRulePublisher<List<AuthorityRuleEntity>> rulePublisher;@GetMapping("/rules")@AuthAction(PrivilegeType.READ_RULE)public Result<List<AuthorityRuleEntity>> apiQueryAllRulesForMachine(@RequestParam String app,@RequestParam String ip,@RequestParam Integer port) {if (StringUtil.isEmpty(app)) {return Result.ofFail(-1, "app cannot be null or empty");}if (StringUtil.isEmpty(ip)) {return Result.ofFail(-1, "ip cannot be null or empty");}if (port == null || port <= 0) {return Result.ofFail(-1, "Invalid parameter: port");}if (!appManagement.isValidMachineOfApp(app, ip)) {return Result.ofFail(-1, "given ip does not belong to given app");}try {
//            List<AuthorityRuleEntity> rules = sentinelApiClient.fetchAuthorityRulesOfMachine(app, ip, port);List<AuthorityRuleEntity> rules = ruleProvider.getRules(app);rules = repository.saveAll(rules);return Result.ofSuccess(rules);} catch (Throwable throwable) {logger.error("Error when querying authority rules", throwable);return Result.ofFail(-1, throwable.getMessage());}}private <R> Result<R> checkEntityInternal(AuthorityRuleEntity entity) {if (entity == null) {return Result.ofFail(-1, "bad rule body");}if (StringUtil.isBlank(entity.getApp())) {return Result.ofFail(-1, "app can't be null or empty");}if (StringUtil.isBlank(entity.getIp())) {return Result.ofFail(-1, "ip can't be null or empty");}if (entity.getPort() == null || entity.getPort() <= 0) {return Result.ofFail(-1, "port can't be null");}if (entity.getRule() == null) {return Result.ofFail(-1, "rule can't be null");}if (StringUtil.isBlank(entity.getResource())) {return Result.ofFail(-1, "resource name cannot be null or empty");}if (StringUtil.isBlank(entity.getLimitApp())) {return Result.ofFail(-1, "limitApp should be valid");}if (entity.getStrategy() != RuleConstant.AUTHORITY_WHITE&& entity.getStrategy() != RuleConstant.AUTHORITY_BLACK) {return Result.ofFail(-1, "Unknown strategy (must be blacklist or whitelist)");}return null;}@PostMapping("/rule")@AuthAction(PrivilegeType.WRITE_RULE)public Result<AuthorityRuleEntity> apiAddAuthorityRule(@RequestBody AuthorityRuleEntity entity) {Result<AuthorityRuleEntity> checkResult = checkEntityInternal(entity);if (checkResult != null) {return checkResult;}entity.setId(null);Date date = new Date();entity.setGmtCreate(date);entity.setGmtModified(date);try {entity = repository.save(entity);} catch (Throwable throwable) {logger.error("Failed to add authority rule", throwable);return Result.ofThrowable(-1, throwable);}
//        if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
//            logger.info("Publish authority rules failed after rule add");
//        }try {publishRules(entity.getApp());} catch (Throwable throwable) {logger.error("Publish authority rules failed after rule add", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(entity);}@PutMapping("/rule/{id}")@AuthAction(PrivilegeType.WRITE_RULE)public Result<AuthorityRuleEntity> apiUpdateParamFlowRule(@PathVariable("id") Long id,@RequestBody AuthorityRuleEntity entity) {if (id == null || id <= 0) {return Result.ofFail(-1, "Invalid id");}Result<AuthorityRuleEntity> checkResult = checkEntityInternal(entity);if (checkResult != null) {return checkResult;}entity.setId(id);Date date = new Date();entity.setGmtCreate(null);entity.setGmtModified(date);try {entity = repository.save(entity);if (entity == null) {return Result.ofFail(-1, "Failed to save authority rule");}} catch (Throwable throwable) {logger.error("Failed to save authority rule", throwable);return Result.ofThrowable(-1, throwable);}
//        if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
//            logger.info("Publish authority rules failed after rule update");
//        }try {publishRules(entity.getApp());} catch (Throwable throwable) {logger.error("Publish authority rules failed after rule update", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(entity);}@DeleteMapping("/rule/{id}")@AuthAction(PrivilegeType.DELETE_RULE)public Result<Long> apiDeleteRule(@PathVariable("id") Long id) {if (id == null) {return Result.ofFail(-1, "id cannot be null");}AuthorityRuleEntity oldEntity = repository.findById(id);if (oldEntity == null) {return Result.ofSuccess(null);}try {repository.delete(id);} catch (Exception e) {return Result.ofFail(-1, e.getMessage());}
//        if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) {
//            logger.error("Publish authority rules failed after rule delete");
//        }try {publishRules(oldEntity.getApp());} catch (Throwable throwable) {logger.error("Publish authority rules failed after rule delete", throwable);return Result.ofThrowable(-1, throwable);}return Result.ofSuccess(id);}//    private boolean publishRules(String app, String ip, Integer port) {
//        List<AuthorityRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
//        return sentinelApiClient.setAuthorityRuleOfMachine(app, ip, port, rules);
//    }private void publishRules(/*@NonNull*/ String app) throws Exception {List<AuthorityRuleEntity> rules = repository.findAllByApp(app);rulePublisher.publish(app, rules);}
}

15、我们以nacos-client-demo为例，配置一下nacos，模拟一下sentinel对这个项目的控制，贴出来json格式做参考。新建一个namespace叫做sentinel-rules，这样sentinel的配置单独放，然后创建5个dataId来对应这5个功能。

nacos-client-demo-flow-rules：

[{"resource": "/nacos-client-demo/api/talk","limitApp": "default","grade": 1,"count": 1,"clusterMode": false,"controlBehavior": 0,"strategy": 0,"warmUpPeriodSec": 10,"maxQueueingTimeMs": 500,"refResource": "rrr"}
]

nacos-client-demo-degrade-rules：

[{"app": "nacos-client-demo","resource": "/nacos-client-demo/api/talk","limitApp": "default","count": 0.5,"timeWindow": 10,"grade": 0,"minRequestAmount": 5,"statIntervalMs": 10000,"slowRatioThreshold": 0.5,"maxAllowedRt": 200}
]

nacos-client-demo-param-flow-rules：

[{"app": "nacos-client-demo","rule": {"burstCount": 0,"clusterConfig": {"fallbackToLocalWhenFail": true,"sampleCount": 10,"thresholdType": 0,"windowIntervalMs": 1000},"clusterMode": false,"controlBehavior": 0,"count": 3.0,"durationInSec": 1,"grade": 1,"limitApp": "default","maxQueueingTimeMs": 0,"paramFlowItemList": [],"paramIdx": 0,"regex": false,"resource": "/nacos-client-demo/api/talk"}}
]

nacos-client-demo-system-rules：

[{"app": "nacos-client-demo","avgRt": 1,"highestCpuUsage": -1.0,"highestSystemLoad": -1.0,"maxThread": -1,"qps": -1.0}
]

nacos-client-demo-authority-rules：

[{"app": "nacos-client-demo","rule": {"limitApp": "openfeign-demo","regex": false,"resource": "/nacos-client-demo/api/talk","strategy": 1}}
]

16、这就完成了，这时候用IDE运行一下测试一下，如果启动后，sentinel里面已经存在nacos-client-demo的这些配置，证明修改完成。

微服务使用带有nacos持久化的Sentinel

Sentinel Dashboard完成了接入nacos持久化，但是这还不够，我们还要将nacos-client-demo这个项目也实现接入带有nacos持久化的sentinel，这样才能实现三方的闭环，SpringCloud对这个支持的很好，只要配置一下即可。

1、修改pom文件，引入sentinel支持nacos持久化的依赖。

        <dependency><groupId>com.alibaba.csp</groupId><artifactId>sentinel-datasource-nacos</artifactId></dependency>

2、application.yaml中添加sentinel对nacos持久化配置，就是配置nacos的地址以及上一节在nacos里添加的有关sentinel的几个dataId。

spring:application:name: nacos-client-demosentinel:transport:dashboard: 127.0.0.1:8080clientIp: 192.168.3.164http-method-specify: true # 请求前缀# 设置sentinel为热加载 默认为falseeager: true# 使用nacos来做持久化datasource:ds-flow:nacos:server-addr: 192.168.3.54:80data-id: ${spring.application.name}-flow-rulesusername: nacospassword: nacos# namespace必须用id，所以创建namespace的时候尽量填入idnamespace: sentinel-rulesgroup-id: devops## 配置存储的格式data-type: json## rule-type设置对应得规则类型，总共七大类型，在com.alibaba.cloud.sentinel.datasource.RuleType这个枚举类中有体现## flow:流控  degrade:熔断降级  param-flow:热点参数规则  system:系统保护规则  authority:授权规则rule-type: flow## 配置熔断降级规则，名字任意ds-degrade:nacos:server-addr: 192.168.3.54:80data-id: ${spring.application.name}-degrade-rulesusername: nacospassword: nacos# namespace必须用id，所以创建namespace的时候尽量填入idnamespace: sentinel-rulesgroup-id: devopsdata-type: jsonrule-type: degrade

3、重新运行项目即可，这时候的sentinel dashboard、nacos、nacos-client-demo三者两两之间数据互通了。

本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如若转载，请注明出处：http://www.mzph.cn/diannao/73502.shtml

如若内容造成侵权/违法违规/事实不符，请联系多彩编程网进行投诉反馈email:809451989@qq.com，一经查实，立即删除！

相关文章

Go语言环境搭建并执行第一个Go程序

Go语言环境搭建并执行第一个Go程序

目录 一、Windows环境搭建 二、vscode安装插件 三、运行第一个go程序 一、Windows环境搭建 下载Go&#xff1a;All releases - The Go Programming Language 这里是Windows搭建&#xff0c;选择的是windows-amd64.msi&#xff0c;也可以选择zip直接解压缩到指定目录 选择msi…
阅读更多...
Java数据结构第二十三期：Map与Set的高效应用之道(二)

Java数据结构第二十三期：Map与Set的高效应用之道(二)

专栏&#xff1a;Java数据结构秘籍 个人主页&#xff1a;手握风云 目录 一、哈希表 1.1. 概念 1.2. 冲突 1.3. 避免冲突 1.4. 解决冲突 1.5. 实现 二、OJ练习 2.1. 只出现一次的数字 2.2. 随机链表的复制 2.3. 宝石与石头 一、哈希表 1.1. 概念 顺序结构以及平衡树中…
阅读更多...
OpenHarmony子系统开发 - Rust编译构建指导

OpenHarmony子系统开发 - Rust编译构建指导

OpenHarmony子系统开发 - Rust编译构建指导 一、Rust模块配置规则和指导 概述 Rust是一门静态强类型语言&#xff0c;具有更安全的内存管理、更好的运行性能、原生支持多线程开发等优势。Rust官方也使用Cargo工具来专门为Rust代码创建工程和构建编译。 OpenHarmony为了集成C…
阅读更多...
STM32驱动代码规范化编写指南（嵌入式C语言方向）

STM32驱动代码规范化编写指南（嵌入式C语言方向）

点击下面图片&#xff0c;为您提供全新的嵌入式学习路线 文章目录 一、命名规范体系1.1 变量/函数命名1.2 宏定义规范1.3 类型定义 二、代码结构组织2.1 文件组织结构2.2 头文件规范模板 三、注释体系构建3.1 Doxygen风格示例3.2 复杂逻辑注释 四、硬件抽象层设计4.1 寄存器封…
阅读更多...
Trae与Builder模式初体验

Trae与Builder模式初体验

说明 下载的国际版&#xff1a;https://www.trae.ai/ 建议 要选新模型 效果 还是挺不错的&#xff0c;遇到问题反馈一下&#xff0c;AI就帮忙解决了&#xff0c;真是动动嘴&#xff08;打打字就行了&#xff09;&#xff0c;做些小的原型效果或演示Demo很方便呀&#xff…
阅读更多...
【设计模式】《设计模式：可复用面向对象软件的基础》：设计模式怎样解决设计问题？

【设计模式】《设计模式：可复用面向对象软件的基础》：设计模式怎样解决设计问题？

文章目录 ⭐前言⭐一、设计模式怎样解决设计问题&#xff1f;&#x1f31f;1、寻找合适的对象&#x1f31f;2、决定对象的粒度&#x1f31f;3、指定对象接口&#x1f31f;4、描述对象的实现&#x1f31f;5、运用复用机制✨(1)针对接口编程&#xff0c;而不是针对实现编程。✨(2…
阅读更多...
【项目管理git】git学习

【项目管理git】git学习

ps&#xff1a;所有东西都是个人理解 文章目录 一、git是什么&#xff0c;它用来做什么&#xff1f;二、相关知识库2.1 简单的linux指令2.2 git配置指令2.3 git常见的指令2.3.1 Git的上传原理2.3.2 版本回退相关内容 2.4 设置远程地址&#xff0c;本地上传到github2.4.1 ssh相…
阅读更多...
python速通小笔记-------1.容器

python速通小笔记-------1.容器

1.字符串的标识 字符串需要用“”标识。 与c不同&#xff0c;python 写变量时 不需要标明数据类型每一行最后不需要加&#xff1b; 2.print函数的使用 与c中的printf函数一致 3.运算符 4.字符串str操作 1. 实现字符串拼接 2.% 实现字符串初始化 %s占位会把变量强制转变为…
阅读更多...
零基础上手Python数据分析 (2)：Python核心语法快速入门

零基础上手Python数据分析 (2)：Python核心语法快速入门

写在前面 场景：每周销售数据报表整理 任务描述： 你需要每周从多个Excel文件中汇总销售数据，计算各项指标（销售额、订单量、客单价等），并生成周报。Excel操作痛点： 文件太多，手动打开复制粘贴，效率低下，容易出错。 多个Excel文件，每个都要打开、筛选、复制数据，重复…
阅读更多...
【PHP】获取PHP-FPM的状态信息

【PHP】获取PHP-FPM的状态信息

文章目录 一、前言二、环境三、过程1&#xff09;修改PHP-FPM配置文件2&#xff09;修改Nginx配置文件3&#xff09;访问页面4&#xff09;修改状态页面端口 一、前言 PHP-FPM内置有一个状态页面&#xff0c;通过这个页面可以获取到FPM的一些状态信息&#xff08;见下图&#…
阅读更多...
搭建Spring Boot Admin监控系统

搭建Spring Boot Admin监控系统

什么是Spring Boot Admin Spring Boot Admin 是一个用于管理和监控 Spring Boot 应用程序的开源工具。它提供了一个用户友好的 Web 界面&#xff0c;用于集中管理和监控多个 Spring Boot 应用程序的运行状态、健康状况、日志、配置等信息。 Spring Boot Admin 的核心功能 应用…
阅读更多...
[CISCN 2022 初赛]ezpop（没成功复现）

[CISCN 2022 初赛]ezpop（没成功复现）

打开在线环境可以看到&#xff1a; 记得之前做过一个类似的就是有点像照着漏洞去复现。应该可以直接在网上找到链子去打。 www.zip查看路由是 Index/test&#xff0c;然后 post 传参 a&#xff1a; exp&#xff08;参考了别的大神的wp&#xff09;&#xff1a; <?php //…
阅读更多...
C 语 言 --- 二 维 数 组 的 应 用

C 语 言 --- 二 维 数 组 的 应 用

C 语 言 --- 二 维 数 组 的 应 用 第 一 题 - - - 冒 泡 排 序冒 泡 排 序冒 泡 排 序 的 原 理 第 二 题 - - - 回 型 矩 阵特 点 第 三 题 - - - 蛇 形 矩 阵总结 &#x1f4bb;作者简介&#xff1a;曾 与 你 一 样 迷 茫&#xff0c;现 以 经 验 助 你 入 门 C 语 言 &…
阅读更多...
5G核心网实训室搭建方案：轻量化部署与虚拟化实践

5G核心网实训室搭建方案：轻量化部署与虚拟化实践

5G核心网实训室 随着5G技术的广泛应用&#xff0c;行业对于5G核心网人才的需求日益增长。高校、科研机构和企业纷纷建立5G实训室&#xff0c;以促进人才培养、技术创新和行业应用研究。IPLOOK凭借其在5G核心网领域的深厚积累&#xff0c;提供了一套高效、灵活的5G实训室搭建方…
阅读更多...
寄生虫仿生算法：基于寄生虫特征的算法设计

寄生虫仿生算法：基于寄生虫特征的算法设计

寄生虫仿生算法:基于寄生虫特征的算法设计 基于寄生虫行为特征的仿生算法设计 import random import numpy as npclass EnhancedPBOA:def __init__(self, host_env, max_generations, population_size50):self.host_env host_envself.max_generations max_generationsself.p…
阅读更多...
【医学影像 AI】基于深度学习的 ROP 病变检测图像评估系统

【医学影像 AI】基于深度学习的 ROP 病变检测图像评估系统

【医学影像 AI】基于深度学习的 ROP 病变检测图像评估系统 0. 论文简介0.1 基本信息0.2 摘要 1. 引言2. 材料与方法2.1 研究人群2.2 疾病分类与参考标准的制定2.3 深度学习系统开发2.4 定量严重程度评分2.5 数据分析 3. 结果4. 讨论6. 参考文献 0. 论文简介 0.1 基本信息 201…
阅读更多...
Cursor初体验：excel转成CANoe的vsysvar文件

Cursor初体验：excel转成CANoe的vsysvar文件

今天公司大佬先锋们给培训了cursor的使用&#xff0c;还给注册了官方账号&#xff01;跃跃欲试&#xff0c;但是测试任务好重&#xff0c;结合第三方工具开发也是没有头绪。 但巧的是&#xff0c;刚好下午有同事有个需求&#xff0c;想要把一个几千行的excel转成canoe的系统变…
阅读更多...
每日一题---单词搜索（深搜）

每日一题---单词搜索（深搜）

单词搜索 给出一个二维字符数组和一个单词&#xff0c;判断单词是否在数组中出现&#xff0c; 单词由相邻单元格的字母连接而成&#xff0c;相邻单元指的是上下左右相邻。同一单元格的字母不能多次使用。 数据范围&#xff1a; 0 < 行长度 < 100 0 < 列长度 <…
阅读更多...
【深度学习】多源物料融合算法（一）：量纲对齐常见方法

【深度学习】多源物料融合算法（一）：量纲对齐常见方法

目录 一、引言 二、量纲对齐常见方法 2.1 Z-score标准化Sigmoid归一化 2.2 Min-Max 归一化 2.3 Rank Transformation 2.4 Log Transformation 2.5 Robust Scaling 3、总结 一、引言 类似抖音、快手、小红书等产品的信息流推荐业务&#xff0c;主要通过信息流广告、信…
阅读更多...
用C++新建快捷方式

用C++新建快捷方式

1.创建文件 新建一个文件Ink.cpp,系统会自动生成对应的EXE文件 2.编写代码 #include<stdlib.h> int main(){ system("powershell -command \"$WshShellNew-Object -comObject WScript.Shell; $Shortcut$WshShell.CreateShortcut(\%UserProfile%\\Desktop\\1.…
阅读更多...
推荐文章
最新文章

Copyright @ 2022~2023