Spring / RestTemplate - PUT实体到服务器 [英] Spring/RestTemplate - PUT entity to server

问题描述

请看这个简单的代码：

final String url = String.format("%s/api/shop", Global.webserviceUrl);

RestTemplate restTemplate = new RestTemplate();
restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());

HttpHeaders headers = new HttpHeaders();
headers.set("X-TP-DeviceID", Global.deviceID);
HttpEntity entity = new HttpEntity(headers);

HttpEntity<Shop[]> response = restTemplate.exchange(url, HttpMethod.GET, entity, Shop[].class);
shops = response.getBody();

如您所见，上面的代码旨在从服务器获取商店列表（以json格式）并映射对Shop对象数组的响应。
现在我需要推出新店，例如/ api / shop / 1。请求实体应该具有与返回的格式完全相同的格式。

As you can see, above code is intended to GET list of shops from server (in json format) and map response to array of Shop objects. Now I need to PUT new shop, for example as /api/shop/1. Request entity should have exactly the same format as returned one.

我应该将/ 1添加到我的网址，创建新的Shop类对象，所有字段都填充了我的值I想放置然后用HttpMethod.PUT交换？

Should I add /1 to my url, create new Shop class object, with all fields filled with my values I want to put and then use exchange with HttpMethod.PUT?

请为我澄清一下，我是Spring的初学者。代码示例将不胜感激。

Please, clarify it for me, I'm beginner with Spring. Code example would be appreciated.

[edit]
我很困惑，因为我刚注意到方法RestTemplate.put（）。那么，我应该使用哪一个？交换或放（）？

[edit] I'm double confused, because I just noticed also method RestTemplate.put(). So, which one should I use? Exchange or put()?

推荐答案

您可以尝试类似：

    final String url = String.format("%s/api/shop/{id}", Global.webserviceUrl);

    RestTemplate restTemplate = new RestTemplate();
    restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());

    HttpHeaders headers = new HttpHeaders();
    headers.set("X-TP-DeviceID", Global.deviceID);
    Shop shop= new Shop();
    Map<String, String> param = new HashMap<String, String>();
    param.put("id","10")
    HttpEntity<Shop> requestEntity = new HttpEntity<Shop>(shop, headers);
    HttpEntity<Shop[]> response = restTemplate.exchange(url, HttpMethod.PUT, requestEntity, Shop[].class, param);

    shops = response.getBody();

看跌期权返回无效，而交易所会给你回复，最好检查的地方是文件< a href =https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/client/RestTemplate.html\"rel =noreferrer> https：//docs.spring。 io / spring / docs / current / javadoc-api / org / springframework / web / client / RestTemplate.html

the put returns void whereas exchange would get you a response, the best place to check would be documentation https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/client/RestTemplate.html

这篇关于Spring / RestTemplate - PUT实体到服务器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！