<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.mahuan</groupId>
 <artifactId>producer</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <packaging>jar</packaging>
 <name>producer</name>
 <description>Demo project for Spring Boot</description>
 <!-- lookup parent from repository -->
 <parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>1.5.1.RELEASE</version>
  <relativePath />
 </parent>
 <properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  <java.version>1.8</java.version>
 </properties>
 <dependencies>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-test</artifactId>
   <scope>test</scope>
  </dependency>
  <dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-config</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-eureka</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-eureka-server</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-feign</artifactId>
  </dependency>
    <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-devtools</artifactId>
   <optional>true</optional>
  </dependency>
 </dependencies>
 <build>
  <plugins>
   <plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <configuration>
     <fork>true</fork>
    </configuration>
   </plugin>
  </plugins>
 </build>
 <dependencyManagement>
  <dependencies>
   <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-dependencies</artifactId>
    <version>Camden.SR6</version>
    <type>pom</type>
    <scope>import</scope>
   </dependency>
  </dependencies>
 </dependencyManagement>
</project>  

package com.mahuan.producer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class App {
 public static void main(String[] args) throws Exception {
  SpringApplication.run(App.class, args);
 }
}

package com.mahuan.producer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class App {
 public static void main(String[] args) throws Exception {
  SpringApplication.run(App.class, args);
 }
}
application.properties
server.port=1111
eureka.client.registerWithEureka=false
eureka.client.fetchRegistry=false
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/

package com.mahuan.producer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@SpringBootApplication
@EnableDiscoveryClient
public class App {
 public static void main(String[] args) throws Exception {
  SpringApplication.run(App.class, args);
 }
}
application.properties配置
server.port=1112
spring.application.name=compute-service
eureka.client.serviceUrl.defaultZone=http://localhost:1111/eureka/

@SpringBootApplication 
public class Application extends SpringBootServletInitializer implements EmbeddedServletContainerCustomizer{ 
 public static void main(String[] args) { 
  SpringApplication.run(Application.class, args); 
 } 
 @Override 
 public void customize(ConfigurableEmbeddedServletContainer container) { 
  ///TODO 获取未被占用的端口
  int port=8080
  container.setPort(port); 
 } 
}

package com.mahuan.producer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;
@SpringBootApplication
@EnableDiscoveryClient
public class App {
 @Bean
 @LoadBalanced
 RestTemplate restTemplate() {
  return new RestTemplate();
 }
 public static void main(String[] args) throws Exception {
  SpringApplication.run(App.class, args);
 }
}

package com.mahuan.producer.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
@RestController
public class FirstContrller2 {
 @Autowired
 RestTemplate restTemplate;
 @RequestMapping(value = "/first")
 @ResponseBody
 public String first() {
  return restTemplate.getForEntity("http://compute-service/first", String.class).getBody();
 }
}

package com.mahuan.producer.controller;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.cloud.netflix.feign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@FeignClient(name = "compute-service")
public interface ComputeService {
 @RequestMapping(method = RequestMethod.GET, value = "/first")
 String first();
}

package com.mahuan.producer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class App {
 public static void main(String[] args) throws Exception {
  SpringApplication.run(App.class, args);
 }
}