搭建EurekaServer#

搭建EurekaServer服务步骤如下:

• 1.创建项目，引入spring-cloud-starter-netflix-eureka-server的依赖

  1
  <dependency>
  2
    <groupId>org.springframework.cloud</groupId>
  3
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
  4
  </dependency>
  

• 2.编写启动类，添加@EnableEarekaServer注解
• 3.添加application.yml文件，编写下面的配置:

  1
  server:
  2
    port: 10086 # 服务端口
  3
  spring:
  4
    application:
  5
      name: eurekaserver # Eureka服务名称
  6
  eureka:
  7
    client:
  8
      service-url: # Eureka的地址信息
  9
        defaultzone: http://127.0.0.1:10086/eureka/
  

注册微服务#

将user-service服务注册到EurekaServer步骤如下:

• 1.在user-service项目引入spring-cloud-starter-netflix-eureka-client的依赖

  1
  <dependency>
  2
      <groupId>org.springframework.cloud</groupId>
  3
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
  4
  </dependency>
  

• 2.在application.yml文件，编写下面的配置:

  1
  spring:
  2
    application:
  3
      name: userservice
  4
  eureka:
  5
    client:
  6
      service-url:
  7
        defaultZone: http:/ /127.0.0.1:10086/eureka/
  

在order-service完成服务拉取#

• 1.修改OrderService的代码，修改访问的url路径，用服务名代替ip、端口：

1
- String url = "http://localhost:8081/user/" + order.getUserId();
2
+ String url = "http://userservice/user/" + order.getUserId();

• 2.在order-service项目的启动类OrderApplication的RestTemplate添加负载均衡注解：

1
@Bean
2
@LoadBalanced
3
public RestTemplate restTemplate(){
4
  return new RestTemplate();
5
}