安装sentinel:
执行命令;
java -jar sentinel-dashboard-1.8.6.jar
注:sentinel的默认端口为8080,容易出现tomcat的冲突。
当端口冲突,可以使用该指令修改sentinel的端口
默认账号和密码都为sentinel
Springcloud整合sentinel:
导入依赖:
<!--SpringCloud alibaba sentinel --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-sentinel</artifactId></dependency><!--nacos-discovery--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency>
application.yml文件配置:
server:port: 8401spring:application:name: cloudalibaba-sentinel-servicecloud:nacos:discovery:server-addr: localhost:8848 #Nacos服务注册中心地址sentinel:transport:dashboard: localhost:8858 #配置Sentinel dashboard控制台服务地址port: 8719 #默认8719端口,假如被占用会自动从8719开始依次+1扫描,直至找到未被占用的端口
测试类:
package com.wen.cloud.controller;import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class FlowLimitController
{@GetMapping("/testA")public String testA(){return "------testA";}@GetMapping("/testB")public String testB(){return "------testB";}
}
测试:
先访问接口 sentinel才会监测出相应的接口: