如果一个远程请求需要重新设置请求头和请求体，可以参考如下

//有参 请求体【body体中】json参数
JSONObject params=new JSONObject();
params.put("param1","value1");
JSONObject jsonobject=restTemplate.postForTemplate(url,params,JSONObject.class);
//有参 请求体中json参数 设置header头
JSONObject param = new JSONObject();
param.put("param1","value1");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
headers.set("Accept", "application/json");
HttpEntity httpEntity = new HttpEntity<>(param, headers);
JSONObject jsonObject = restTemplate.postForObject(url, httpEntity, JSONObject.class);