乐优商场项目day02——搭建服务调用方

搭建服务调用方，和 搭建服务提供方 一样，先建个模块。
可以用Spring 提供的脚手架，快速搭建（参考 搭建服务提供方 ，只需要勾选 Web - Web ）

也可以自己搭建，这里提供pom.xml文件：
 

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.6.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>cn.yuanxion.service</groupId>
	<artifactId>yuanxion-service-consumer</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>yuanxion-service-consumer</name>
	<description>Demo project for Spring Boot</description>

	<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>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

同样，将配置文件 application.porperties 改成 application.yml
并且将默认端口改成 80

然后到引导类中，注入 远程调用 所需要的 RestTemplate 

将User类创建出来

public class User {
    private Long id;

    private String userName;

    private String password;

    private String name;

    private Integer age;

    private Integer sex;

    private Date birthday;

    private Date created;

    private Date updated;

    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 getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    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 Integer getSex() {
        return sex;
    }

    public void setSex(Integer sex) {
        this.sex = sex;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }

    public Date getCreated() {
        return created;
    }

    public void setCreated(Date created) {
        this.created = created;
    }

    public Date getUpdated() {
        return updated;
    }

    public void setUpdated(Date updated) {
        this.updated = updated;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", userName='" + userName + '\'' +
                ", password='" + password + '\'' +
                ", name='" + name + '\'' +
                ", age=" + age +
                ", sex=" + sex +
                ", birthday=" + birthday +
                ", created=" + created +
                ", updated=" + updated +
                '}';
    }
}

再写一个Controlller并写上调用方法

@Controller
@RequestMapping("consumer/user") //加个前缀，区分于之前的user
public class UserController {

    @Autowired  //注入RestTemplate，为了远程调用服务提供方的接口
    private RestTemplate restTemplate;

    @GetMapping
    @ResponseBody
    public User queryUserById(@RequestParam("id")Long id){
        return this.restTemplate.getForObject("http://localhost:8081/user/" + id,User.class); //获取并反序列化后返回

    }


}

 写好后，将两个分别都启动：

分别访问测试：

两个都搭建成功了！

(这是传统的分布式，早期分布式项目就是这样写的。）