釋放HttpClient 4.1.x的連接用於一個HttpClient實例的順序執行

Question

對不起有點重複，here,here，但他們說，如果你讀了響應主體的最後一個字節並關閉輸入流。它已準備好接受其他請求。但看看我在這裏得到了什麼，而且在執行新的請求時我總是遇到這個錯誤。

無效使用SingleClientConnManager的：連接仍然分配

public String detectGooglePost(String text) throws SystemException { 

     List<NameValuePair> qParams = new ArrayList<NameValuePair>(); 
     qParams.add(new BasicNameValuePair("key", key)); 

     List<NameValuePair> bodyParams = new ArrayList<NameValuePair>(); 
     bodyParams.add(new BasicNameValuePair("q", text)); 

     HttpPost httpPost = new HttpPost(createURI(qParams)); 
     httpPost.addHeader("X-HTTP-Method-Override", "GET"); 
     try { 
      httpPost.setEntity(new UrlEncodedFormEntity(bodyParams)); 
     } catch (UnsupportedEncodingException e) { 
      throw new SystemException("Problem when buidling Google request entity", e); 
     } 

     String language = getLanguage(httpPost); 
     return language; 
    } 

    private String getLanguage(HttpUriRequest request) throws SystemException { 

     HttpResponse response; 
     try { 
      response = httpclient.execute(request); 
     } catch (Exception e) { 
      throw new SystemException("Problem when executing Google request", e); 
     } 

     int sc = response.getStatusLine().getStatusCode(); 
     if (sc != HttpStatus.SC_OK) 
      throw new SystemException("google status code : " + sc); 

     StringBuilder builder = getBuilder(response); 
     String language = processJson(builder.toString()); 

     return language; 
    } 

    private StringBuilder getBuilder(HttpResponse response) throws SystemException { 
     HttpEntity entity = response.getEntity(); 
     if (entity == null) 
      throw new SystemException("response entity null"); 

     StringBuilder builder = new StringBuilder(); 
     BufferedReader in = null; 
     String str; 
     try { 
      in = new BufferedReader(new InputStreamReader(entity.getContent())); 
      while ((str = in.readLine()) != null) 
       builder.append(str); 
     } catch (IOException e) { 
      throw new SystemException("Reading input stream of http google response entity problem", e); 
     } finally { 
        IOUtils.closeQuietly(in); 
     } 
     if (builder.length() == 0) 
      throw new SystemException("content stream of response entity empty has zero length"); 
     return builder; 
    } 

我應該如何釋放連接？該流被讀取並關閉。但仍然檢測到GooglePost（文本）方法時再次調用（單例HttpClient實例），它會引發該錯誤。

Answer 1

人必須工作，試試這個：

HttpResponse response; 
    String responseBody; 
    try { 
     response = httpclient.execute(request); 
     int sc = response.getStatusLine().getStatusCode(); 
     if (sc != HttpStatus.SC_OK) 
      throw new SystemException("google status code : " + sc); 

     HttpEntity entity = response.getEntity(); 
     if (entity == null) 
      throw new SystemException("response entity null"); 
     responseBody = EntityUtils.toString(entity); 
    } catch (Exception e) { 
     request.abort(); 
     throw new SystemException("Problem when executing Google request", e); 
    }