RestTemplate的POST请求

RestTemplate中，对POST请求可以通过三个方法调用实现

一 postForEntity函数

postForEntity(String url,Object request,Class responseType,Object ... urlVariables)
postForEntity(String url,Object request,Class responseType,Map urlVariables)
postForEntity(String url,Object request,Class responseType)

二 postForObject函数

postForObject(String url,Object request,Class responseType,Object ... urlVariables)
postForObject(String url,Object request,Class responseType,Map urlVariables)
postForObject(String url,Object request,Class responseType)

三 postForLocation函数

postForLocation(String url,Object request,Object ... urlVariables)
postForLocation(String url,Object request,Map urlVariables)
postForLocation(String url,Object request)

四 实战

//第一种形式
User user = new User("didi", 20);
String postResult = restTemplate.postForObject("http://HELLO-SERVICE/hello3", user, String.class);
result.append(postResult).append("
");
//第二种形式
user = new User("didi", 30);
ResponseEntity responseEntity = restTemplate.postForEntity("http://HELLO-SERVICE/hello3", user, String.class);
result.append(responseEntity.getBody()).append("
");
//第三种形式
user = new User("didi", 40);
URI responseURI = restTemplate.postForLocation("http://HELLO-SERVICE/hello3", user);
result.append(responseURI).append("
");