SpringCloud(第 002 篇)简单电影微服务类(消费方
2017-09-17 本文已影响70人
HMILYYLIMH
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 { @Autowired private 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 { @Bean public 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; ****************************************************************************************/