entity.getContentLength（）返回-1

我得到BufferedReader對象是空的，當我調試我的代碼時，我發現實際上HttpEntity對象似乎也是空的。entity.getContentLength（）返回-1

這裏是我的部分代碼：

//製作HTTP要求

try { 
      // defaultHttpClient 
      DefaultHttpClient httpClient = new DefaultHttpClient(); 
      HttpPost httpPost = new HttpPost(url); 
      httpPost.setHeader("Content-Type", "application/json"); 
      httpPost.setHeader("Accept", "JSON"); 

      HttpResponse httpResponse = httpClient.execute(httpPost); 
      HttpEntity httpEntity = httpResponse.getEntity(); 
      long len = httpEntity.getContentLength(); 
      is = httpEntity.getContent(); 

     } catch (UnsupportedEncodingException e) { 
      e.printStackTrace(); 
     } catch (UnknownHostException e){ 
      e.getMessage(); 
      e.printStackTrace(); 
     } catch (ClientProtocolException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

     try { 
      BufferedReader reader = new BufferedReader(new InputStreamReader(
        is, "UTF-8"), 8); 
      StringBuilder sb = new StringBuilder(); 
      String line = null; 
      while ((line = reader.readLine()) != null) { 
       sb.append(line + "\n"); 
      } 
      is.close(); 
      json = sb.toString(); 
     } catch (Exception e) { 
      Log.e("Buffer Error", "Error converting result " + e.toString()); 
     }

如果我打我的PC上的瀏覽器的URL，它提供了一個JSON響應，還取決於[HTTP： //jsonlint.com/][1]

什麼是確切的問題，我無法理解

來源

2014-02-18 Rohit

此代碼在asyntask或線程中。？ –

什麼是HTTP響應狀態？你爲什麼沒有[使用'BasicResponseHandler'將響應轉換爲字符串]（http://stackoverflow.com/a/2573112/139010）？ –

@wqrahd是的，這是進入asyns任務 – Rohit

檢查響應狀態，然後開始讀取響應

HttpResponse httpResponse = httpClient.execute(httpPost); 
if(httpResponse .getStatusLine().getStatusCode() == SC_OK) 
{ 
    HttpEntity httpEntity = httpResponse.getEntity(); 
    long len = httpEntity.getContentLength(); 
    is = httpEntity.getContent(); 
    }

來源

2014-02-18 04:56:38

我得到的狀態碼是200，但仍然是entity.getContentLength（）是-1 – Rohit

entity.getContentLength（）返回-1

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