SpringCloud（第 002 篇）简单电影微服务类（消费方，而提供方为用户微服务）

一、大致介绍

微服务与微服务之间通过 Http 协议进行通信；
用户微服务作为提供方，电影微服务作为消费方，电影微服务消费用户微服务 ；

二、实现步骤

2.1 添加 maven 引用包

<?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><artifactId>springms-simple-consumer-movie</artifactId><version>1.0-SNAPSHOT</version><packaging>jar</packaging><parent><groupId>com.springms.cloud</groupId><artifactId>springms-spring-cloud</artifactId><version>1.0-SNAPSHOT</version></parent><dependencies><!-- web模块 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency></dependencies></project>

2.2 添加应用配置文件（springms-simple-consumer-movie\src\main\resources\application.yml）

spring:application:name: springms-simple-consumer-movie  #全部小写
server:port: 8005
user: userServicePath: http://localhost:8000/simple/

2.3 添加实体用户类User（springms-simple-consumer-movie\src\main\java\com\springms\cloud\entity\User.java）

package com.springms.cloud.entity;import java.math.BigDecimal;public class User {private Long id;private String username;private String name;private Short age;private BigDecimal balance;public Long getId() {return this.id;}public void setId(Long id) {this.id = id;}public String getUsername() {return this.username;}public void setUsername(String username) {this.username = username;}public String getName() {return this.name;}public void setName(String name) {this.name = name;}public Short getAge() {return this.age;}public void setAge(Short age) {this.age = age;}public BigDecimal getBalance() {return this.balance;}public void setBalance(BigDecimal balance) {this.balance = balance;}}

2.4 添加电影Web访问层Controller（springms-simple-consumer-movie\src\main\java\com\springms\cloud\controller\MsSimpleConsumerMovieController.java）

package com.springms.cloud.controller;import com.springms.cloud.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
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;/*** 电影微服务Controller。** @author hmilyylimh** @version 0.0.1** @date 2017/9/17**/
@RestController
public class MsSimpleConsumerMovieController {@Autowiredprivate RestTemplate restTemplate;@Value("${user.userServicePath}")private String userServicePath;@GetMapping("/movie/{id}")public User findById(@PathVariable Long id) {return this.restTemplate.getForObject(this.userServicePath + id, User.class);}
}

2.5 添加简单电影微服务启动类（springms-simple-consumer-movie\src\main\java\com\springms\cloud\MsSimpleConsumerMovieApplication.java）

package com.springms.cloud;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;/*** 简单电影微服务类（消费方，而提供方为用户微服务）。** @author hmilyylimh** @version 0.0.1** @date 2017/9/17**/
@SpringBootApplication
public class MsSimpleConsumerMovieApplication {@Beanpublic RestTemplate restTemplate() {return new RestTemplate();}public static void main(String[] args) {SpringApplication.run(MsSimpleConsumerMovieApplication.class, args);System.out.println("【【【【【【 简单电影微服务 】】】】】】已启动.");}
}

三、测试

/****************************************************************************************一、简单电影微服务类（消费方，而提供方为用户微服务）：1、启动 springms-simple-provider-user 模块服务，启动1个端口；2、启动 springms-simple-consumer-movie 模块服务，启动1个端口；3、在浏览器输入地址 http://localhost:8005/movie/1 可以看到信息成功的被打印出来；****************************************************************************************/

四、下载地址

https://gitee.com/ylimhhmily/SpringCloudTutorial.git

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