restTemplate 發送 form body

  <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-web</artifactId>
       <version>5.2.2.RELEASE</version>
  </dependency>

添加依賴

package com.example.provider.model;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;

public class HttpClientUtil {
    private static final Logger logger= LoggerFactory.getLogger(HttpClientUtil.class);

    public static String formPost(String url, MultiValueMap<String,String> map){
        logger.info("url={},map={}",url,map);
        RestTemplate restTemplate=new RestTemplate();
        HttpHeaders headers=new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
        HttpEntity<MultiValueMap<String,String>> request=new HttpEntity<MultiValueMap<String,String>>(map,headers);
        ResponseEntity<String> response=restTemplate.postForEntity(url,request,String.class);
        return  response.getBody();
    }

    public static  String jsonPost(String url,String bodyJson){
        RestTemplate restTemplate=new RestTemplate();
        HttpHeaders headers=new HttpHeaders();
        headers.setContentType(MediaType.parseMediaType("application/json;charset=UTF-8"));
        headers.add("Accept",MediaType.APPLICATION_JSON.toString());
        HttpEntity<String> httpEntity=new HttpEntity<String>(bodyJson,headers);
        ResponseEntity<String> response=restTemplate.postForEntity(url,httpEntity,String.class);
        return response.getBody();
    }
}