|
pom.xml <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.cookqq</groupId> <artifactId>consumer-order</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>consumer-order</name> <url>http://maven.apache.org</url> <!-- 引入spring boot的依赖 --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.9.RELEASE</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> <!-- 引入spring cloud的依赖 --> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Edgware.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> </project> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> 已经引入了 <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-ribbon</artifactId> </dependency>
orderApp.java package com.cookqq.consumer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;
/**
* 订单服务
*
*/
@SpringBootApplication
public class OrderApp
{
@Bean
@LoadBalanced
public RestTemplate restTemplate(){
return new RestTemplate();
}
public static void main( String[] args )
{
SpringApplication.run(OrderApp.class, args);
}
}restTemplate增加注解@LoadBalanced User.java package com.cookqq.consumer.bean;
import java.math.BigDecimal;
public class User {
private Long id;
private String username;
private String name;
private Integer age;
private BigDecimal balance;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public BigDecimal getBalance() {
return balance;
}
public void setBalance(BigDecimal balance) {
this.balance = balance;
}
}OrderController.java package com.cookqq.consumer.controller;
import java.util.List;
import java.util.Random;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import com.cookqq.consumer.bean.User;
@RestController
public class OrderController {
@Autowired
private RestTemplate restTemplate;
@Autowired
private DiscoveryClient discoveryClient;
@GetMapping("/user/{id}")
public User findUserById(@PathVariable Long id){
// return this.restTemplate.getForObject("http://127.0.0.1:8000/"+id, User.class);
// List<ServiceInstance> listInfo = discoveryClient.getInstances("provider-user");
// if(listInfo.size()>0){
// return this.restTemplate.getForObject(
// listInfo.get(new Random().nextInt(listInfo.size())).getUri()+"/"+id,
// User.class);
// }
return this.restTemplate.getForObject("http://provider-user/"+id, User.class);
}
}this.restTemplate.getForObject("http://provider-user/"+id, User.class)修改成微服务的名称，当ribbon和eureka配合使用，会自动将微服务的名称映射成微服务的网络ip+端口号。 启动前文的euraka 启动前文的provider-user（多启动几个实例） 启动consumer-order，访问浏览器
|
