Spring Cloud zuul 负载均衡

不多BB 直接上代码 首先创建三个项目

Eureka的pom文件

<!-- 服务端发现模块 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
        <!-- 服务端登录验证模块：进入 eureka 的网页时候需要输入登录密码的模块 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

然后是配置

spring:
  application:
    name: eureka
server:
  port: 8088
eureka:
  client:
    register-with-eureka: false
    fetch-registry: false
    service-url:
      defaultZone: http://localhost:8088/eureka
    instance:
      hostname: ${spring.cloud.client.ipAddress}
security:
  basic:
    enabled: false
  user:
    name: admin
    password: admin

启动类

@SpringBootApplication
@EnableEurekaServer
public class EurekaApplication {

    public static void main(String[] args) {
        SpringApplication.run(EurekaApplication.class, args);
    }
}

然后是服务
pom文件

<!-- 客户端发现模块 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>

配置文件

server:
	// 不要用随机端口
  port:  8085
spring:
  application:
    name: xajr-service
eureka:
  client:
    service-url:
      defaultZone: http://localhost:8088/eureka
  instance:
    hostname: ${spring.cloud.client.ipAddress}
    prefer-ip-address: false
    instance-id: ${spring.application.name}:${spring.cloud.client.ipAddress}:${spring.application.instance_id:${server.port}}

启动类

@SpringBootApplication
@EnableEurekaClient
public class ServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServiceApplication.class, args);
    }
}

service的 测试代码

@RestController
public class HelloController {

	// 获取端口
    @Value("${server.port}")
    private String port;

    @RequestMapping(value = "/hello/hi", method = RequestMethod.GET)
    public String hello() {
        return "Hello " + port;
    }
}

zuul

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zuul</artifactId>
        </dependency>
        <!-- 客户端发现模块 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-feign</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
        </dependency>

配置文件

spring:
  application:
    name: zuul
server:
  port: 8087
eureka:
  instance:
    hostname: ${spring.cloud.client.ipAddress}
    prefer-ip-address: true
    instance-id: ${spring.application.name}:${spring.cloud.client.ipAddress}:${spring.application.instance_id:${server.port}}
  client:
    service-url:
      defaultZone: http://localhost:8088/eureka
zuul:
  routes:
    hello:
    	// 这是在访问路径上要加的
      path: /test/**
      serviceId: xajr-service
#下面配置的超时时间   解决com.netflix.zuul.exception.ZuulException: Forwarding error报错问题
  host:
    connect-timeout-millis: 10000
    socket-timeout-millis: 60000
hystrix:
  command:
    default:
      execution:
        isolation:
          thread:
            timeoutInMilliseconds: 60000
ribbon:
  ReadTimeout: 60000
  ConnectTimeout: 60000

配置已经完成。
然后依次启动 eureka 、service（两个）、zuul

下面进行测试


然后zuul

多访问几次，就可以看到效果。

zuul 负载均衡就完成了、