RestTemplate

在使用restTemplate.postForLocation()方法时，生产者(provider)返回的时候要设置请求头信息，不然返回的是null
consumer:

@RequestMapping("/postForLocation")
public void postForLocation(){
    String url ="http://provider/postParam";
    Map<String, String> map = Collections.singletonMap("name", " memeda");
    URI location = restTemplate.postForLocation(url, map, Person.class);
    System.out.println(location);
}

provider:

public URI postParam(@RequestBody Person person,HttpServletResponse response) throws Exception {
    URI uri = new URI("https://www.baidu.com/s?wd=" + person.getName());
    response.addHeader("Location", uri.toString());
    return uri;
}