springcloud3 GateWay章节-Nacos+gateway动态路由负载均衡4

一工程结构

1.1 工程

1.2 搭建gatewayapi工程

1.pom文件

 <dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.13</version><scope>test</scope></dependency><!--gateway--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId><!--排除gateway 内部不兼容的 spring-webflux --><exclusions><!-- 排除web依赖--><exclusion><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></exclusion></exclusions></dependency><!--包含了sleuth+zipkin--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-zipkin</artifactId></dependency><!--SpringCloud ailibaba nacos --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!--日常通用jar包配置--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><scope>runtime</scope><optional>true</optional></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies>

2.启动类

@SpringBootApplication
@EnableDiscoveryClient
public class App 
{public static void main( String[] args ){SpringApplication.run(App.class, args);System.out.println("网关启动完毕.....");}
}

3.配置文件

server:port: 7004
#服务名称
spring:application:name: mscloud-nacos-gateway-api7004zipkin:base-url: http://localhost:9411sleuth:sampler:#采样率值介于 0 到 1 之间，1 则表示全部采集probability: 1cloud:gateway:discovery:locator:enabled: true #开启从注册中心动态创建路由的功能，利用微服务名进行路由routes:- id: payment_routh #payment_route    #路由的ID，没有固定规则但要求唯一，建议配合服务名#uri: http://localhost:8001          #匹配后提供服务的路由地址uri: lb://mscloud-cluster-providers #匹配后提供服务的路由地址 http://localhost:9007/payment/get/1?uname=aa  等价于 http://localhost:9003/payment/get/1predicates:                          ##浏览器上直接访问eureka的应用名不行：ttp://mscloud-cluster-providers/payment/get/1  这样访问不行- Path=/payment/get/**         # 断言，路径相匹配的进行路由- id: payment_routh2 #payment_route    #路由的ID，没有固定规则但要求唯一，建议配合服务名#uri: http://localhost:8001          #匹配后提供服务的路由地址uri: lb://nacos-payment-provider #匹配后提供服务的路由地址predicates:- Path=/payment/nacos/**         # 断言，路径相匹配的进行路由- After=2023-03-12T11:52:37.485+08:00[Asia/Shanghai]#- Cookie=username,zzyy#- Header=X-Request-Id, \d+  # 请求头要有X-Request-Id属性并且值为整数的正则表达式