springboot成神之——RestTemplate访问Rest

Posted 2021-01-05 叶家伟的博客

本文介绍RestTemplate访问Rest

demo

package com.springlearn.learn;


import java.util.Arrays;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestTemplate;

@SpringBootApplication
public class DemoApplication {

    public static void main(String[] args) {
        HttpHeaders headers = new HttpHeaders();
        headers.setAccept(Arrays.asList(new MediaType[]{MediaType.APPLICATION_JSON_UTF8}));
        

        

        // Get
        // HttpEntity<String> entity = new HttpEntity<String>(headers);
        // RestTemplate restTemplate = new RestTemplate();
        // ResponseEntity<String> response = restTemplate.exchange("https://www.baidu.com/s?wd=a", HttpMethod.GET, entity,String.class);

        // Post
        // HttpEntity<Object> entity = new HttpEntity<>(new Object[]{"1"}, headers);
        // RestTemplate restTemplate = new RestTemplate();
        // Object response = restTemplate.postForObject("https://www.baidu.com/s?wd=a", entity, Object.class);
        
        // Put 和Post类似
        // 使用put方法即可
        // 或者使用restTemplate.exchange("...", HttpMethod.PUT, entity, String.class);

        // Delete 直接delete即可

        System.out.println("结果："+response);
        
        SpringApplication.run(DemoApplication.class, args);
    }
}