使用RestTemplate远程调用(携带Cookie)实战案例

不废话，上代码

1. pom.xml

<?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>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
       <version>1.4.0.RELEASE</version>
    </parent>
    <groupId>com.demo</groupId>
    <artifactId>springboot_quick</artifactId>
    <version>1.0-SNAPSHOT</version>



    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <xdocreport.version>1.0.5</xdocreport.version>
    </properties>


    <dependencies>
        <!--web功能的起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- OKHttp3依赖 -->
        <dependency>
            <groupId>com.squareup.okhttp3</groupId>
            <artifactId>okhttp</artifactId>
            <version>3.8.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

2. 启动类

package com.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;

/**
 * create by: anyu
 */
@SpringBootApplication
public class MySpringBootApplication {
    public static void main(String[] args) {
        SpringApplication.run(MySpringBootApplication.class);
    }

    @Bean
    RestTemplate restTemplate(RestTemplateBuilder restTemplateBuilder) {
        return restTemplateBuilder.build();
    }
}

3. 测试类

import com.demo.MySpringBootApplication;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;
import java.util.ArrayList;
import java.util.List;

/**
 * @create_by: anyu
 * @craete_time 2019/7/2
 */
@SpringBootTest(classes = MySpringBootApplication.class)
@RunWith(SpringRunner.class)
public class TestDemo {

    @Test
    public void test() {
        System.out.println("hello,world");
    }

    @Autowired
    private RestTemplate restTemplate;

    /* Cookie 是根据用户名密码生成的，若不变化可直接保存数据库或者Redis，然后读取即不必反复登录 */
    /* Cookie 如果后期Cookie有失效时间了，则可用定时任务定时刷新或者失效重登重新保存即可 */
    /* 里面的请求体map 内容自定义，以及头部自定义即可适用于其他的远程请求  */

    /**
     * 模拟登录并拿到Cookie
     */
    @Test
    public void login(){
        HttpHeaders headers = new HttpHeaders();
        MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();      //map里面是请求体的内容
        map.add("userName", "admin");
        map.add("password","123456");
        HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<MultiValueMap<String, String>>(map, headers);
        ResponseEntity<String> response = restTemplate.postForEntity("http://localhost:8888/xxl-job-admin/login", request, String.class);       //地址替换为自己的
        System.out.println(response.getHeaders().get("Set-Cookie").get(0));                //      XXL_JOB_LOGIN_IDENTITY=6333303830376536353837616465323835626137616465396638383162336437; Path=/; HttpOnly
    }




/*   组操作---> 对执行器进行操作  */

    /**
     * 保存组Group
     */
    @Test
    public void saveGroup(){
        HttpHeaders headers = new HttpHeaders();
        List<String> cookies =new ArrayList<String>();
        /* 登录获取Cookie 这里是直接给Cookie，可使用下方的login方法拿到Cookie给入*/
        cookies.add("XXL_JOB_LOGIN_IDENTITY=6333303830376536353837616465323835626137616465396638383162336437; Path=/; HttpOnly");       //在 header 中存入cookies
        headers.put(HttpHeaders.COOKIE,cookies);        //将cookie存入头部
        MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();      //请求体给予内容
        map.add("appName", "xxl-job-executor-cdmtc-record");        //应用名称
        map.add("title", "测试执行器");      //执行器名称
        map.add("order", "1");          //排序方式
        map.add("addressType", "1");        //注册方式 ：  0为
        HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<MultiValueMap<String, String>>(map, headers);
        ResponseEntity<String> response = restTemplate.postForEntity("http://localhost:8888/xxl-job-admin/jobgroup/save", request, String.class);
        System.out.println(response.getBody());        // {"code":200,"msg":null,"content":null}   返回此，且数据库增加数据即为成功
    }
}