POST请求正在调用doGet方法

Question

我发送POST请求到一个Tomcat Servlet，我很快翻遍了一起。当我在Android上发出HttpPost请求时，我发现我看到了servlet中的请求，但这是因为调用了doGet方法。任何人都可以向我解释为什么会发生这种情况，以及我如何修复它以调用doPost方法？

这里的服务方法使POST请求：

@Override 
protected void onHandleIntent(Intent intent) { 
    Log.i(TAG, "handling intent"); 
    // get Longitude and Latitude 
    Bundle bundle = intent.getExtras(); 

    double longitude = bundle.getDouble("longitude"); 
    double latitude = bundle.getDouble("latitude"); 
    // int id = bundle.getInt("id"); 
    long time = System.currentTimeMillis(); 

    // log location in local db 

    // send location up to db repository (repositories) 
    JSONObject jObj = new JSONObject(); 
    try { 
     jObj.put("long", longitude); 
     jObj.put("lat", latitude); 
     jObj.put("userId", 1); 
     jObj.put("time", time); 

     Log.i(TAG, "JSON object: " + jObj.toString()); 

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

    try { 
     StringEntity se = new StringEntity("JSON" + jObj.toString()); 
     se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json")); 

     String url = [http://url/to/servlet/here]; 
     HttpClient httpClient = new DefaultHttpClient(); 
     HttpPost post = new HttpPost(url); 
     post.setEntity(se); 
     HttpResponse response; 

     response = httpClient.execute(post); 

     // check response 
     if (response != null) { 
      Log.i(TAG, "Message received"); 
     } 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 

} 

并且servlet接收请求：

public class ReceiveLocation extends HttpServlet { 

    private static final long serialVersionUID = 1L; 

    protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
     System.out.println("Post request received"); 
     response.setContentType("application/json"); 
     PrintWriter out = response.getWriter(); 
     try { 
      StringBuilder sb = new StringBuilder(); 
      String s; 
      while ((s = request.getReader().readLine()) != null) { 
       sb.append(s); 
      } 
      System.out.println("sb: " + sb.toString()); 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 


/** 
    * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) 
*/ 
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws   ServletException, IOException { 
     processRequest(request, response); 
    } 
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
     System.out.println("Get request received!!!"); 
    } 
} 

输出是 “获取接收到的请求！”

编辑

我临时改变doGet方法给我一个跟踪上我认为可能是重要的几件事情（我是新来的这一切，请让我知道如果我贴对这种情况没有帮助）。

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
    System.out.println("Get request received!!!"); 
    Enumeration<String> enumerator = request.getHeaderNames(); 
    while (enumerator.hasMoreElements()) { 
     System.out.println("header: " + enumerator.nextElement()); 
    } 

    System.out.println("Method request: " + request.getMethod().toString()); 
    Enumeration<String> attrEnumerator = request.getAttributeNames(); 
    while (attrEnumerator.hasMoreElements()) { 
     System.out.println("attr:" + attrEnumerator.nextElement()); 
    } 
    Enumeration<String> paramEnumerator = request.getParameterNames(); 
    while (paramEnumerator.hasMoreElements()) { 
     System.out.println("param:" + paramEnumerator.nextElement()); 
    } 
} 

输出：

获取接收到的请求！

头：主机

头：连接

头：用户代理

方法请求：GET

Output from Android: 
I TreasureHuntActivity: Provider network has been selected. 
I TreasureHuntActivity: Init Lat: 30280 
I TreasureHuntActivity: Init Long: -97744 
I SendLocationIntentService: handling intent 
I SendLocationIntentService: JSON object: {"long":0,"time":1329792722150,"lat":0} 
I SendLocationIntentService: Method POST 
I SendLocationIntentService: Entity [email protected] 
I SendLocationIntentService: handling intent 
I SendLocationIntentService: JSON object: {"long":0,"time":1329792743161,"lat":0} 
I SendLocationIntentService: Method POST 
I SendLocationIntentService: Entity [email protected] 

Answer 1

你不是做一个HTTP POST你代码，因为你的实体是空的。

Here's做一个HTTP POST在Android的方式