为什么我的HTTP连接没有超时？

Question

我有以下用于执行HTTP Post的代码：

InputStream ins = null;
String result = null; 
public String postforBakup(String url){

    java.util.Date date= new java.util.Date();
    Timestamp timestamp = (new Timestamp(date.getTime()));



    HttpParams httpParameters = new BasicHttpParams();
    int timeoutConnection = 3000;
    HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
    int timeoutSocket = 5000;
    HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);


    DefaultHttpClient http = new DefaultHttpClient(httpParameters); 
    HttpPost httppost = new HttpPost(url);
    httppost.setHeader("Accept", "application/json");
    httppost.setHeader("Content-Type", "application/x-www-form-urlencoded");

    try{
        JSONArray json = (makeJSON());



        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(5);
        nameValuePairs.add(new BasicNameValuePair("key", processKey()));
        nameValuePairs.add(new BasicNameValuePair("type", "Android"));
        nameValuePairs.add(new BasicNameValuePair("timestamp", timestamp.toString()));
        nameValuePairs.add(new BasicNameValuePair("mail", mail));
        nameValuePairs.add(new BasicNameValuePair("jsonArray", Arrays.asList(json).toString()));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));




        HttpResponse resp = http.execute(httppost); 
        HttpEntity entity = resp.getEntity();
        ins = entity.getContent(); 
        BufferedReader bufread = new BufferedReader(new InputStreamReader(ins, "UTF-8"), 8); 
        StringBuilder sb = new StringBuilder(); 
        String line = null; 
        while((line = bufread.readLine()) != null){
            sb.append(line +"\n"); 
        }
        result = sb.toString().trim(); 
        System.out.println("Response: "+result);




    }catch (Exception e){

        System.out.println("Squish: "+e); 

    }finally{
        try{
            if(ins != null){
                ins.close();
            }
        }catch(Exception smash){
            System.out.println("Squish: "+smash); 
        }
    }
    if(result.equalsIgnoreCase("Authentication failed")){
        System.out.println("Death");
        return "Backup failed"; 
    }else if (result.equalsIgnoreCase("update successfull")){
        System.out.println("Life");
        return "Success";
    }else{
        return "failed";
    }
}

虽然如果连接到WIFI时该功能正常工作，但当我切换到2g时，我得到加载器几个小时，没有任何异常或超时消息。这可能有什么问题？