Android HttpsURLConnection发布问题

问题描述

| 我的android应用程序中有以下活动，该活动创建带有身份验证的httpsurlconnection。然后，它发布一些XML并捕获响应。我从服务器收到的响应是没有收到XML消息，但是日志中没有异常。 我已经测试了与Java应用程序相同的代码，并且工作正常。我已经搜寻了两周，但似乎找不到答案。 我已经在清单文件中设置了android.permission.INTERNET。 任何帮助将不胜感激，我在下面发布了我的代码，减去了连接中使用的用户名和密码。 活动：

package com.payments.WorldPay;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class OrderModification extends Activity
{   
  TextView resultMessage;

  @Override
  public void onCreate(Bundle savedInstanceState)   
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.order_modification);

    Button submit = (Button)findViewById(R.id.submitButton);
    submit.setonClickListener(submitModification);
    resultMessage = (TextView)this.findViewById(R.id.result);
  }

  OnClickListener submitModification = new OnClickListener()
    {
      public void onClick(View v) 
      {             
        StringBuffer xmlMod = new StringBuffer();

        xmlMod.append(\"<?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?>\");
        xmlMod.append(\"<!DOCTYPE paymentService PUBLIC \\\"-//RBS WorldPay/DTD RBS WorldPay 
        PaymentService v1//EN\\\" \\\"http://dtd.wp3.rbsworldpay.com/paymentService_v1.dtd\\\">\");
        xmlMod.append(\"<paymentService version=\\\"1.4\\\" merchantCode=\\\"TECHSUPPORT\\\">\");
        xmlMod.append(\"<modify>\");
        xmlMod.append(\"<orderModification orderCode=\\\"123456789\\\">\");
        xmlMod.append(\"<cancel/>\");
        xmlMod.append(\"</orderModification>\");
        xmlMod.append(\"</modify>\");
        xmlMod.append(\"</paymentService>\");

        SendXml sendMod = new SendXml(xmlMod.toString());
        resultMessage.setText(sendMod.submitOrder());
      }
    };
}

连接类别：

package com.payments.WorldPay;

import java.io.*;
import java.net.*;
import javax.net.ssl.HttpsURLConnection;

public class SendXml
{    
  protected final static String merchantCode=\"username\";    
  protected final static String xmlPassword=\"password\";
  protected final static String envUrl=\"https://secure-test.wp3.rbsworldpay.com/jsp/merchant/xml/paymentService.jsp\";    
  protected String xmlRequest;

  public SendXml(String xmlRequest)
  {       
    this.xmlRequest = xmlRequest;    
  }        

  public String submitOrder()    
  {     
    HttpsURLConnection conn = null;         

    try     
    {                       
      System.setProperty(\"http.keepAlive\",\"false\");                                    

      Authenticator.setDefault(new MyAuthenticator());            
      URL url = new URL(envUrl);

      conn = (HttpsURLConnection)url.openConnection();                        
      conn.setRequestMethod(\"POST\");            
      conn.setRequestProperty(\"Content-Type\",\"text/xml\");            
      conn.setDoInput(true);            
      conn.setDoOutput(true);            
      conn.setUseCaches(false);            
      conn.setAllowUserInteraction(false);            
      conn.setConnectTimeout(30000);

      String utf8Xml = URLEncoder.encode(xmlRequest,\"UTF-8\");
      DataOutputStream wr = new DataOutputStream(conn.getoutputStream());
      wr.writeBytes(utf8Xml);
      wr.flush();
      wr.close();

      InputStream response;

      if(conn.getResponseCode()==200)
      { 
        response = conn.getInputStream();
      }
      else
      { 
        response = conn.getErrorStream();
      }

      BufferedReader in = new BufferedReader(new InputStreamReader(response),4800); 
      StringBuffer responseBuffer = new StringBuffer();
      String line;

      while ((line = in.readLine()) != null) 
      { 
        responseBuffer.append(line);
      }

      in.close();

      return responseBuffer.toString();     
    }   
    catch(Exception e)
    {   
      return(\"Connection Error: \"+e);
    }
    finally 
    {
      conn.disconnect(); 
    }
  }

  public static class MyAuthenticator extends Authenticator
  {
    public PasswordAuthentication getpasswordAuthentication()
    {
      return (new PasswordAuthentication(merchantCode,xmlPassword.tochararray()));
    }
  }
}

我再次将代码作为Java项目运行，并且工作正常。我在下面提供了示例请求和响应。 请求：

<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<!DOCTYPE paymentService PUBLIC \"-//RBS WorldPay/DTD RBS WorldPay PaymentService v1//EN\"         
\"http://dtd.wp3.rbsworldpay.com/paymentService_v1.dtd\">
<paymentService version=\"1.4\" merchantCode=\"TECHSUPPORT\">
  <modify>
    <orderModification orderCode=\"123456789\">
      <cancel/>
    </orderModification>
  </modify>
</paymentService>

响应：

<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<!DOCTYPE paymentService PUBLIC \"-//Bibit//DTD Bibit PaymentService v1//EN\" 
\"http://dtd.bibit.com/paymentService_v1.dtd\">
<paymentService version=\"1.4\" merchantCode=\"TECHSUPPORT\">
  <reply>
    <ok>
      <cancelReceived orderCode=\"123456789\"/>
    </ok>
  </reply>
</paymentService>

如果仅从上面的元素中删除>，我将收到以下错误。 错误响应：

<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<!DOCTYPE paymentService PUBLIC \"-//Bibit//DTD Bibit PaymentService v1//EN\" 
\"http://dtd.bibit.com/paymentService_v1.dtd\">
<paymentService version=\"1.4\" merchantCode=\"TECHSUPPORT\">
  <reply>
    <error code=\"2\">
      <![CDATA[Element type \"modify\" must be followed by either attribute specifications,\">\" or 
      \"/>\".]]>
    </error>
  </reply>
</paymentService>

提前致谢 达伦     

解决方法

        我没有找到问题的答案，但是下面的代码使我能够成功发布XML。

public ArrayList<PaymentResult> submitOrder()
{
    HttpClient client = new DefaultHttpClient();
    HttpPost request = new HttpPost(envUrl);
    UsernamePasswordCredentials login = new UsernamePasswordCredentials(merchantCode,xmlPassword);
    StringBuffer responseBuffer = null;     

    try
    {                       
        request.addHeader(BasicScheme.authenticate(login,\"UTF-8\",false)); 

        StringEntity xmlmessage = new StringEntity(xmlRequest,HTTP.UTF_8);
        xmlmessage.setContentType(\"text/xml\");  
        request.setHeader(\"Content-Type\",\"text/xml;charset=UTF-8\");
        request.setEntity(xmlmessage); 

        HttpResponse response = client.execute(request);   
        BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
        responseBuffer = new StringBuffer();
        String line;

        while ((line = in.readLine()) != null)
        {
            responseBuffer.append(line);
        }
        in.close();
    }   
    catch(Exception e)
    {
        e.printStackTrace();
    }
    return parseResponse(responseBuffer.toString());
}