如何发送的JSONObject到REST服务？ [英] How to send a JSONObject to a REST service?

问题描述

从REST服务器检索数据效果很好，但如果我要发布一个对象这是行不通的：

 公共静态无效postJSONObject（INT store_type，FavoriteItem喜爱，字符串令牌，字符串对象名）{
        字符串URL =;

        开关（store_type）{
            案例STORE_PROJECT：
                URL = URL_STORE_PROJECT_PART1 +令牌+ URL_STORE_PROJECT_PART2;
                //数据= favorite.getAsJSONObject（）;
            打破;
        }

        HttpClient的HttpClient的=新DefaultHttpClient（）;
        HttpPost的PostMethod =新HttpPost（URL）;

        尝试 {
            HttpEntity实体=新StringEntity（{\ID \：0，\名称\：\我的Projekt10 \}）;

            postMethod.setEntity（实体）;

            HTT presponse响应= httpClient.execute（后方法）;
            Log.i（JSONStore，发布采购信息，以URL：+网址）;
            的System.out.println（状态code：+ response.getStatusLine（）的getStatus code（））;

        }赶上（ClientProtocolException E）{
 

我总是得到一个400错误code。有谁知道什么是错了吗？

我已经运行的C＃code，但我不能转换：

  System.Net.WebRequest WR = System.Net.HttpWebRequest.Create（HTTP：//本地主机：51273 / WSUser.svc / pak3omxtEuLrzHSUSbQP /项目）;
            wr.Method =POST;
            字符串数据={\ID \：1，\名称\：\我的Projekt的\};

            byte []的D​​ = UTF8Encoding.UTF8.GetBytes（数据）;
            wr.ContentLength = d.Length;
            wr.ContentType =应用/ JSON;

             wr.GetRequestStream（）写（D，0，d.Length）。
            System.Net.WebResponse wresp = wr.GetResponse（）;
            就是System.IO.StreamReader SR =新就是System.IO.StreamReader（wresp.GetResponseStream（））;
            串线= sr.ReadToEnd（）;
 

解决方案

尝试设置的内容类型头：

  

postMethod.addRequestHeader（内容类型，应用/ JSON）;

顺便说一句，我强烈建议新泽西。它有一个REST 客户端库这使得这些类的东西更容易和更具可读性

Retrieving data from the REST Server works well, but if I want to post an object it doesn't work:

public static void postJSONObject(int store_type, FavoriteItem favorite, String token, String objectName) {
        String url = "";

        switch(store_type) {
            case STORE_PROJECT:
                url = URL_STORE_PROJECT_PART1 + token + URL_STORE_PROJECT_PART2; 
                //data = favorite.getAsJSONObject();
            break;
        }

        HttpClient httpClient = new DefaultHttpClient();
        HttpPost postMethod = new HttpPost(url);

        try {   
            HttpEntity entity = new StringEntity("{\"ID\":0,\"Name\":\"Mein Projekt10\"}");

            postMethod.setEntity(entity);

            HttpResponse response = httpClient.execute(postMethod);
            Log.i("JSONStore", "Post request, to URL: " + url);
            System.out.println("Status code: " + response.getStatusLine().getStatusCode());

        } catch (ClientProtocolException e) {

I always get a 400 Error Code. Does anybody know whats wrong?

I have working C# code, but I can't convert:

 System.Net.WebRequest wr = System.Net.HttpWebRequest.Create("http://localhost:51273/WSUser.svc/pak3omxtEuLrzHSUSbQP/project");
            wr.Method = "POST";
            string data = "{\"ID\":1,\"Name\":\"Mein Projekt\"}";

            byte [] d = UTF8Encoding.UTF8.GetBytes(data);
            wr.ContentLength = d.Length;
            wr.ContentType = "application/json";

             wr.GetRequestStream().Write(d, 0, d.Length);
            System.Net.WebResponse wresp = wr.GetResponse();
            System.IO.StreamReader sr = new System.IO.StreamReader(wresp.GetResponseStream());
            string line = sr.ReadToEnd();

解决方案

Try setting the content type header:

postMethod.addRequestHeader("Content-Type", "application/json");

Btw, I strongly recommend Jersey. It has a REST client library which makes these kind of things much easier and more readable

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