將HTTP字符串發佈到HTTP的問題Android Android HttpPost和HttpUrlConnection

Question

我對Android有點新，並且一直在用XML字符串的HTTP Post進行嘗試。我已經嘗試了使用HttpsUrlConnection和HttpPost的這段代碼的5個版本，以及Im運行的麻煩是我的XML字符串沒有將它傳遞給我的服務器上的應用程序，而是請求和XML將它傳遞給Apache服務器。 我試圖完成的是將XML中的用戶名和PIN發送到我的服務器上的apache perl cgi XML。我已經使用GET完成了它，並且工作得很好，但似乎無法讓POST工作。 任何我可能會做錯的見解，特別是如果我的代碼看起來可以完成我的目標，將不勝感激。再次道歉如果這是一個非常新手的問題。 謝謝你們:)

來自主要活動的XML字符串是一個普通的XML，我添加xmlsrc =之前發送到該函數。

String xml = "<?xml version=\"1.0\"encoding=\"UTF-8\"?><UserRequesting><NewUser>joseph</NewUser><Password>123456789</Password></UserRequesting>"; 

這第一個片段是我最新的使用HttpsURLConnection的：

public void fetchLoginXML(){ 
    Log.d(TAG, "IN fetch "); 
    HttpsURLConnection urlc; 
    OutputStreamWriter out = null; 
    DataOutputStream dataout; 
    BufferedReader in = null; 

    try { 
     URL url = new URL(urlValuser); 
     Log.d(TAG, "Final URL: " + url); 
     urlc = (HttpsURLConnection) url.openConnection(); 
     urlc.setHostnameVerifier(new AllowAllHostnameVerifier()); 
     urlc.setRequestMethod("POST"); 

     urlc.setDoOutput(true); 
     urlc.setDoInput(true); 
     urlc.setUseCaches(false); 
     urlc.setAllowUserInteraction(false); 
     urlc.setRequestProperty("Content-Type", "text/xml"); 
     // perform POST operation 
     Log.d(TAG, "Xml Source to POST: " + xmlsrc); 
     String body = xmlsrc; 
     OutputStream output = new BufferedOutputStream(urlc.getOutputStream()); 
     output.write(body.getBytes()); 
     output.flush(); 
     int responseCode = urlc.getResponseCode(); 
     in = new BufferedReader(new InputStreamReader(urlc.getInputStream()),8096); 

     String response = ""; 

     String line = in.readLine(); 
     while (line != null) { 
      response += line; 
      line = in.readLine(); 
     } 

     Log.d(TAG, "Post results Response Code " + responseCode); 
     Log.d(TAG, "Post results Response " + response); 

     in.close(); 

     factory = XmlPullParserFactory.newInstance(); 
     XmlPullParser myparser = factory.newPullParser(); 
     Log.d(TAG, "Setting myparser paramaters "); 
     myparser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false); 
     Log.d(TAG, "Setting myparser input into xmldata "); 
     myparser.setInput(new StringReader(response)); 
     Log.d(TAG, "send myparser to function parsexmlandstoreit "); 
     parseXMLAndStoreIt(myparser); 

    } catch (Exception e) { 
     Log.e(TAG, "Error Posting Data: " + e.toString()); 
    } finally { 
     if (out != null) { 
      try { 
       out.close(); 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } 
     } 
     if (in != null) { 
      try { 
       in.close(); 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } 
     } 
    } 
} 

我的第二個版本使用HttpPost：

public void postData(String sendData) throws Exception { 
    // Create a new HttpClient and Post Header 
    Log.d(TAG, "Sending Data: " + sendData); 
    HttpClient httpclient = new DefaultHttpClient(); 
    HttpPost httppost = new HttpPost("https://joes...."); 
    httppost.addHeader("Accept", "text/xml"); 

    try { 
     StringEntity se = new StringEntity(sendData); 
     se.setContentType("text/xml"); 
     httppost.setEntity(se); 
     // Execute HTTP Post Request 
     Log.d(TAG, "Execute HTTP POST"); 
     HttpResponse response = httpclient.execute(httppost); 
     Log.d(TAG, "Message Sent :)"); 
     InputStream ips = response.getEntity().getContent(); 
     BufferedReader buf = new BufferedReader(new InputStreamReader(ips,"UTF-8")); 

     if(response.getStatusLine().getStatusCode()!= HttpStatus.SC_OK) 
     { 
      Log.e(TAG, "Response: " + response.getStatusLine().getReasonPhrase()); 
      throw new Exception(response.getStatusLine().getReasonPhrase()); 
     } 

     Log.d(TAG, "Response: " + response.getStatusLine().getReasonPhrase()); 
     String received = ""; 

     String line = buf.readLine(); 
     while (line != null) { 
      received += line; 
      line = buf.readLine(); 
     } 

     StringBuilder sb = new StringBuilder(); 
     String s; 
     while(true) 
     { 
      s = buf.readLine(); 
      if(s==null || s.length()==0) 
       break; 
      sb.append(s); 

     } 
     buf.close(); 
     ips.close(); 
     sb.toString(); 

     factory = XmlPullParserFactory.newInstance(); 
     XmlPullParser myparser = factory.newPullParser(); 
     Log.d(TAG, "Setting myparser paramaters "); 
     myparser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false); 
     Log.d(TAG, "Setting myparser input into xmldata "); 
     myparser.setInput(new StringReader(received)); 
     Log.d(TAG, "send myparser to function parsexmlandstoreit "); 
     parseXMLAndStoreIt(myparser); 
    } 
    catch (ClientProtocolException e) 
    { 
     Log.d(TAG, "Client Protocol Error: " + e); 
     e.printStackTrace(); 
     // TODO Auto-generated catch block 
    } 
    catch (IOException e) 
    { 
     Log.d(TAG, "I/O Error: " + e); 
     e.printStackTrace(); 
     // TODO Auto-generated catch block 
    } 
} 

Answer 1

所以經過很長的時間試圖瞭解爲什麼會打Apache服務器，但不是我們在服務器上的應用程序，我發現我需要創建一個緩衝體BEFORE POST，然後將緩衝流寫入服務器。

像這樣：

URL url = new URL(urlValuser); 
     Log.d(TAG, "URL to POST to: " + url); 
     HttpsURLConnection urlc = (HttpsURLConnection) url.openConnection(); 
     urlc.setReadTimeout(10000); 
     urlc.setConnectTimeout(15000); 
     urlc.setRequestMethod("POST"); 
     urlc.setDoInput(true); 
     urlc.setDoOutput(true); 
     // perform POST operation 
     OutputStream os = urlc.getOutputStream(); 
     BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8")); 
     writer.write(xmlToPost); 
     writer.flush(); 
     writer.close(); 
     os.close(); 

     int responseCode = urlc.getResponseCode(); 
     in = new BufferedReader(new InputStreamReader(urlc.getInputStream())); 
     String response = ""; 
     String line = in.readLine(); 
     while (line != null) { 
      System.out.println(response); 
      response += line; 
      line = in.readLine(); 
     } 
     Log.d(TAG, "Post results Response Code " + responseCode); 
     Log.d(TAG, "Post results Response " + response); 

     in.close(); 

     return response; 
     writer.write(xmlToPost); 
     writer.flush(); 
     writer.close(); 
     os.close();