小程序：SocketException未知的代理類型：HTTP

Question

我有我的運行在Eclipse中的小程序沒有問題，但如果我簽署並在瀏覽器中運行這個happend

10-abr-2013 19:54:37 org.apache.http.impl.client.DefaultHttpClient tryConnect 
INFO: I/O exception (java.net.SocketException) caught when connecting to the target host: Unknown proxy type : HTTP 
10-abr-2013 19:54:37 org.apache.http.impl.client.DefaultHttpClient tryConnect 
INFO: Retrying connect 
… 
java.net.SocketException: Unknown proxy type : HTTP 
    at java.net.SocksSocketImpl.connect(Unknown Source) 
    at java.net.Socket.connect(Unknown Source) 

這裏我嘗試使用org.apache上傳一些文件.http.client.HttpClient

public static String executeMultiPartRequest(String urlString, File file, 
     String fileName, String fileDescription) { 

    System.out.println("SET URI " + urlString); 
    HttpPost postRequest = new HttpPost(urlString); 
    try { 

     MultipartEntity multiPartEntity = new MultipartEntity(); 

     // The usual form parameters can be added this way 
     multiPartEntity.addPart("fileDescription", new StringBody(
       fileDescription != null ? fileDescription : "")); 
     multiPartEntity.addPart("fileName", new StringBody(
       fileName != null ? fileName : file.getName())); 

     /* 
     * Need to construct a FileBody with the file that needs to be 
     * attached and specify the mime type of the file. Add the fileBody 
     * to the request as an another part. This part will be considered 
     * as file part and the rest of them as usual form-data parts 
     */ 
     FileBody fileBody = new FileBody(file, "application/octect-stream"); 
     multiPartEntity.addPart("attachment", fileBody); 

     // multiPartEntity.addPart("path", Charset.forName("UTF-8")); 

     postRequest.setEntity(multiPartEntity); 
    } catch (UnsupportedEncodingException ex) { 
     ex.printStackTrace(); 
    } 

    return executeRequest(postRequest); 
} 

private static String executeRequest(HttpRequestBase requestBase) { 
    String responseString = ""; 

    InputStream responseStream = null; 
    HttpClient client = new DefaultHttpClient(); 
    try { 
     System.out.println("LISTO PARA ENVIAR A" + requestBase.getURI()); 
     HttpResponse response = client.execute(requestBase); 
     if (response != null) { 
      HttpEntity responseEntity = response.getEntity(); 

      if (responseEntity != null) { 
       responseStream = responseEntity.getContent(); 
       if (responseStream != null) { 
        BufferedReader br = new BufferedReader(
          new InputStreamReader(responseStream)); 
        String responseLine = br.readLine(); 
        String tempResponseString = ""; 
        while (responseLine != null) { 
         tempResponseString = tempResponseString 
           + responseLine 
           + System.getProperty("line.separator"); 
         responseLine = br.readLine(); 
        } 
        br.close(); 
        if (tempResponseString.length() > 0) { 
         responseString = tempResponseString; 
        } 
       } 
      } 
     } 
    } catch (UnsupportedEncodingException e) { 
     e.printStackTrace(); 
    } catch (ClientProtocolException e) { 
     e.printStackTrace(); 
    } catch (IllegalStateException e) { 
     e.printStackTrace(); 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } finally { 
     if (responseStream != null) { 
      try { 
       responseStream.close(); 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } 
     } 
    } 
    client.getConnectionManager().shutdown(); 

    return responseString; 
} 

它是什麼錯誤？

Applet的簽名並與Java 1.6，HttpClient的-4.1.3.jar

Answer 1

對於這個問題編制，解決方案在這裏http://hc.apache.org/httpcomponents-client-ga/tutorial/html/connmgmt.html#d5e571得到JRE代理。

DefaultHttpClient client = new DefaultHttpClient() ; 
ProxySelectorRoutePlanner routePlanner = new ProxySelectorRoutePlanner(
       client.getConnectionManager().getSchemeRegistry(), 
       ProxySelector.getDefault()); 
client.setRoutePlanner(routePlanner); 
HttpResponse response = client.execute(requestBase) ; 

然後我簽署的所有庫httpcore-4.2.3.jar，httpmime-4.2.3.jar和httpclient-4.2.3.jar。