如何將數據從我的android應用程序發佈到服務器？

Question

我想從Android應用程序將數據發送到服務器（.NET），但它不工作，這是我的代碼：

DefaultHttpClient hc=new DefaultHttpClient(); 
ResponseHandler <String> res=new BasicResponseHandler(); 
HttpPost postMethod=new HttpPost(myURl); 

postMethod.getParams().setParameter(CoreProtocolPNames.USE_EXPECT_CONTINUE, Boolean.FALSE); 
postMethod.getParams().setBooleanParameter("http.protocol.expect-continue", false); 
postMethod.setHeader("Content-Type", "application/json"); 

JSONObject json = new JSONObject(); 

json.put("TOKEN", channel_token).toString(); 
json.put("APPLICATIONDATASOURCEID", data_src_id).toString(); 
json.put("NEWSTITLE", Title_edittext.getText().toString().trim()).toString(); 
json.put("NEWSDETAILS", Details_edittext.getText().toString()).toString();  
json.put("ALERTSTARTSAT" , "12/03/2012/05/12"); 
json.put("ALERTENDSAT", "13/03/2012/06/12"); 
json.put("SENDPUSHNOTIFICATION", true); 
json.put("EXPIREIMMEDIATELY", true); 

Log.i("jason Object", json.toString()); 

StringEntity se = new StringEntity(json.toString()); 
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/json")); 
postMethod.setEntity(se);  

HttpResponse response = hc.execute(postMethod); 
HttpEntity entity = response.getEntity(); 
InputStream is = entity.getContent(); 
String _response = convertStreamToString(is); 
System.out.println("res " + _response); 

得到這個從服務器響應「Expectaions失敗」。請告訴我問題在哪裏。

Answer 1

設置如下您的JSON請求：

final int TIMEOUT_MILLISEC = 10000; // = 10 seconds 

HttpParams httpParams = new BasicHttpParams(); 
HttpConnectionParams.setConnectionTimeout(httpParams, TIMEOUT_MILLISEC); 
HttpConnectionParams.setSoTimeout(httpParams, TIMEOUT_MILLISEC); 
HttpClient client = new DefaultHttpClient(httpParams); 

HttpPost request = new HttpPost(myURl); 

//set post request type 
request.setHeader(HTTP.CONTENT_TYPE, "application/json; charset=utf-8"); 

//request result type 
request.setHeader("Accept", "application/json; charset=utf-8"); 

JSONObject json = new JSONObject(); 
. 
. 
. 
. 
. 
//and so on with rest of the code 

Answer 2

您必須使用WSDL Web服務在.NET Web服務器上發佈數據，因爲.NET框架不提供WSDL連接，並且不支持像Java這樣的直接HttpPost(myURL)。

我希望this article會幫助你。

Answer 3

如果你正在尋找一個教程中，Android SDK附帶一個名爲維基詞典一個示例應用程序。這是理解HTTP獲取JSON的好例子。