411 Content-Length Required

我正在嘗試使用Android Apache HttpClient執行POST，但它返回錯誤411 Content-Length必需。這是代碼。411 Content-Length Required

  HttpClient httpClient = new DefaultHttpClient(); 

      HttpPost request = new HttpPost("https://www.paypal.com/webapps/auth/protocol/openidconnect/v1/tokenservice"); 
      request.addHeader("Authorization","Basic "+ Base64.encodeToString((appId+":"+ appSecret).getBytes(),Base64.DEFAULT)); 



      List<NameValuePair> postParameters = new ArrayList<NameValuePair>(); 
      postParameters.add(new BasicNameValuePair("grant_type", "authorization_code"));     
      postParameters.add(new BasicNameValuePair("code", code));     
      postParameters.add(new BasicNameValuePair("scope", "https://uri.paypal.com/services/paypalhere"));     

       UrlEncodedFormEntity entity; 
       entity = new UrlEncodedFormEntity(postParameters); 

       request.setEntity(entity); 
       HttpResponse response = httpClient.execute(request); 

       Log.d("HTTPStatus",response.getStatusLine().toString()); 

       InputStream bufferedReader =   
         response.getEntity().getContent(); 
       StringBuffer stringBuffer = new StringBuffer(""); 
       byte[] line = new byte[1024]; 
       while (bufferedReader.read(line) > 0) {  
        stringBuffer.append(new String(line));  
        } 
       bufferedReader.close(); 

       Log.d("str",stringBuffer.toString());

我曾嘗試加入一行： -

   request.addHeader("Content-Length",Long.toString(entity.getContentLength()));

但後來我得到一個 'org.apache.http.ProtocolException：Content-Length頭已經存在' 錯誤信息。這意味着HttpClient已經發送了Content-Length。 Unfortunatley我無法訪問服務器端。任何想法爲什麼它會返回這些錯誤？

來源

2013-03-21 user1240059

你試過發佈此使用HTTP，而不是HTTPS和運行Wireshark的，看看到底就是BEING產生什麼電腦？你使用的是什麼版本的Android HTTP客戶端？ – HeatfanJohn 2013-03-21 15:58:13

我將它發送到HTTP地址並運行wireshark。它沒有在Wireshark中作爲一個帖子出現，而是作爲[重新組裝的PDU的TCP段]，不知道這意味着什麼。這是捕獲包。 – user1240059 2013-03-21 19:14:31

TRSNIFF data uBôÿk=æ！·，+ $ w72l EØ[email protected]@？ãμÈP-rX³Á7-Ph「POST ************ HTTP/1.1 Content-Type：application/xml; charset = UTF-8 授權：基本版*************** 內容長度：103 主持人：************* Connection：Keep-Alive User-Agent：Apache-HttpClient/UNAVAILABLE（java 1.4） {「grant_type」：「authorization_code」，「scope」：「https：\/\/uri.paypal.com \/services \/paypalhere「，」code「：」***********「} – user1240059 2013-03-21 19:15:45

試試這個，

HttpClient httpClient = new DefaultHttpClient(); 
     HttpPost request = new HttpPost("https://www.paypal.com/webapps/auth/protocol/openidconnect/v1/tokenservice"); 
     request.setHeader("Content-type", "application/json"); 
     request.setHeader("Accept", "application/json"); 
     request.addHeader("Authorization", "Basic " + Base64.encodeToString((appId + ":" + appSecret).getBytes(), Base64.DEFAULT)); 


     JSONObject obj = new JSONObject(); 
     obj.put("grant_type", "authorization_code"); 
     obj.put("code", code); 
     obj.put("scope", "https://uri.paypal.com/services/paypalhere");  
     request.setEntity(new StringEntity(obj.toString(), "UTF-8"));   

     HttpResponse response = httpClient.execute(request);

來源

2013-03-21 16:13:23 Talha

仍然得到響應代碼411 :-( – user1240059 2013-03-21 17:27:58

411 Content-Length Required

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