Rest，服务消费者

Rest服务消费者

编写服务消费者模块

1. 创建消费者，一般指定端口号为80
   
2. pom.xml和application.yml

<?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">
    <parent>
        <artifactId>springcloud</artifactId>
        <groupId>cn.lzm</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>springcloud-consumer-person-80</artifactId>
    <dependencies>
        <!--引入api模块-->
        <dependency>
            <groupId>cn.lzm</groupId>
            <artifactId>API</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

    </dependencies>

</project>

server:
  port: 80

3. 将RestTemplate注册到spring IOC容器中

package cn.lzm.springcloud.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class WebConfig {
    
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }
}

4. 编写控制器，消费者不应该有服务层

package cn.lzm.springcloud.controller;
import cn.lzm.springcloud.pojo.Person;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.RestTemplate;

import java.util.List;

/**
 * 理解：消费者，不应该有service层
 * RestTemplate... 直接调用注册到spring中
 * (String url, Class<T> responseType, Map<String, ?> uriVariables)路径 响应类字节码 map请求参数
 */
@Controller
public class PersonController {

    @Autowired
    RestTemplate restTemplate;
    private static final String REQUEST_URL = "http://localhost:8001";

    @GetMapping("/person/com/add")
    @ResponseBody
    public String addPerson(Person person){
        //postForObject ,getForObjec ...
        return restTemplate.postForObject(REQUEST_URL+"/person/add",person,String.class);
    }

    @GetMapping("/person/com/get/{id}")
    @ResponseBody
    public Person getPersonById(@PathVariable("id") int id){
        return restTemplate.getForObject(REQUEST_URL+"/person/{id}",Person.class,id);
    }
    @GetMapping("/person/com/get/all")
    @ResponseBody
    public List<Person> getPersonAll(){
        return restTemplate.getForObject(REQUEST_URL+"/person/getall",List.class);
    }

}

5. 测试一下

• 成功(^▽)