使用RestTemplate遠程調用(攜帶Cookie)實戰案例

不廢話，上代碼

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功能的起步依賴-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- OKHttp3依賴 -->
        <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. 啓動類

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. 測試類

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 是根據用戶名密碼生成的，若不變化可直接保存數據庫或者Redis，然後讀取即不必反覆登錄 */
    /* Cookie 如果後期Cookie有失效時間了，則可用定時任務定時刷新或者失效重登重新保存即可 */
    /* 裏面的請求體map 內容自定義，以及頭部自定義即可適用於其他的遠程請求  */

    /**
     * 模擬登錄並拿到Cookie
     */
    @Test
    public void login(){
        HttpHeaders headers = new HttpHeaders();
        MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();      //map裏面是請求體的內容
        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);       //地址替換爲自己的
        System.out.println(response.getHeaders().get("Set-Cookie").get(0));                //      XXL_JOB_LOGIN_IDENTITY=6333303830376536353837616465323835626137616465396638383162336437; Path=/; HttpOnly
    }




/*   組操作---> 對執行器進行操作  */

    /**
     * 保存組Group
     */
    @Test
    public void saveGroup(){
        HttpHeaders headers = new HttpHeaders();
        List<String> cookies =new ArrayList<String>();
        /* 登錄獲取Cookie 這裏是直接給Cookie，可使用下方的login方法拿到Cookie給入*/
        cookies.add("XXL_JOB_LOGIN_IDENTITY=6333303830376536353837616465323835626137616465396638383162336437; Path=/; HttpOnly");       //在 header 中存入cookies
        headers.put(HttpHeaders.COOKIE,cookies);        //將cookie存入頭部
        MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();      //請求體給予內容
        map.add("appName", "xxl-job-executor-cdmtc-record");        //應用名稱
        map.add("title", "測試執行器");      //執行器名稱
        map.add("order", "1");          //排序方式
        map.add("addressType", "1");        //註冊方式 ：  0爲
        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，且數據庫增加數據即爲成功
    }
}