在REST URL中传递JSON字符串

问题描述

第一次使用REST并尝试在REST请求URL中发送JSON字符串作为路径变量，我正在做什么来从客户端发送请求：

Using REST for the first time and trying to send JSON string as path variable in REST request URL, what I am doing to send a request from client:

JSONObject json = new JSONObject();
try {
    json.put("Test", "123");
    json.put("tracks", "1234");
    jj = json.toString();
} catch (JSONException e1) {
    // TODO Auto-generated catch block
       e1.printStackTrace();
}

   String url =  "http://localhost:8090/webApp/restresource/"+jj+".do";
   st = (String) restTemplate.postForObject(url,jj, String.class, jj);

休息服务器：

@RequestMapping(value = "/restresource/{code}", method=RequestMethod.POST, consumes= "application/json")
public @ResponseBody String useJson(@PathVariable String jj) {

    String result;

    JSONObject jObject = new JSONObject();
    try {
        result = jObject.getJSONObject(jj).toString();

    } catch (JSONException jse) {
        jse.printStackTrace();
    }

return result;

}

我得到的例外是不够变量值以扩展测试

编辑：我的请求网址如下所示：

my request url looks like this:

的http：//本地主机：8090 /应用/ restResource /％7B％22％22：％22123 22％，％22tracks％22：％221234％22％7D.do

甚至看到了HttpClientErrorException！任何帮助表示赞赏！

Even saw the HttpClientErrorException! Any help is appreciated!

推荐答案

我要做的是：

HttpEntity<Object> entity = new HttpEntity<Object>(json); // Create HTTP Entity to post to rest endpoint
restTemplate.getMessageConverters().add(new MappingJacksonHttpMessageConverter());
restTemplate.postForEntity(url, entity, Object.class);

在服务器端，您不需要以PathVariable的形式访问它，而是可以使用

In your server side, you do not need to access this as PathVariable instead you can use

@RequestMapping(value = "/restresource", method=RequestMethod.POST, consumes= "application/json")
public @ResponseBody String useJson(@RequestBody JSonObject object) {

因此spring框架自动将json字符串转换为指定的对象类型。
您可以相应调整您的网址，然后重试。

Hence spring framework automatically convert the json string into the specified object type.You can adjust your URL accordingly and try again.

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