急急急，关于android调用net webservice的问题，在线等

[jan_five2012]

先上代码：
1、net的webservice代码

[WebService(Namespace = "http://iscan.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
    // [System.Web.Script.Services.ScriptService]
    public class IScanConn : System.Web.Services.WebService
    {
        public MySoapHeader myheader = new MySoapHeader();
        public JSONHelper jsonHelper = new JSONHelper();

        //[SoapHeader("myheader")]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]//返回json
        [WebMethod(Description = "登录系统", EnableSession = true), SoapRpcMethod(Use = System.Web.Services.Description.SoapBindingUse.Literal)]
        public string Login(string username, string userpassword)
        {
            logGet(username);
            logGet(userpassword);
            A040X10YGJBXXDAO dao = null;
            string msg = "";
            //验证是否有权访问 
            //if (!myheader.isValid(out msg))
            //{
            //    logGet(msg);
            //    dao.B030dlmcXX = msg;
            //}
            //else
            //{
                A040X10YGJBXXBLL ygbll = new A040X10YGJBXXBLL();
                bool b = ygbll.CheckPassword(username, userpassword);
                if (b)
                {
                    int id = ygbll.GetIdA040X10YGJBXX(username);
                    dao = ygbll.GetModel(Convert.ToInt64(id));
                }
            //}
            List<A040X10YGJBXXDAO> listDao = new List<A040X10YGJBXXDAO>();
            listDao.Add(dao);
            logGet("end");
            msg = jsonHelper.GetJson<List<A040X10YGJBXXDAO>>(listDao);
            logGet(msg);
            return msg;
        }

        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]//返回json
        [WebMethod(Description = "登录系统1", EnableSession = true), SoapRpcMethod(Use = System.Web.Services.Description.SoapBindingUse.Literal)]
        public string Login1()
        {
            logGet("1");
            A040X10YGJBXXDAO dao = null;
            A040X10YGJBXXBLL ygbll = new A040X10YGJBXXBLL();
            dao = ygbll.GetModel(1);
            logGet("end");
            List<A040X10YGJBXXDAO> listDao = new List<A040X10YGJBXXDAO>();
            listDao.Add(dao);
            string msg = jsonHelper.GetJson<List<A040X10YGJBXXDAO>>(listDao);
            logGet(msg);
            return msg;
        }

2、android客户端代码

public static String GetMsg(String[] args)  {
		Log.v(l_tag, "star");
		//webservice地址
		final String endpoint="http://10.0.2.2:8082/IScanWS/IScanConn.asmx";
		// 调用的方法  
		final String methodName = "Login"; 
		
		List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>(); 
		JSONObject json = new JSONObject();   
       	try {
       		json.put("username", args[0]);
	    } catch (JSONException e) {
	    	e.printStackTrace();
	    }   
       	try {
       		json.put("userpassword", args[1]);
	    } catch (JSONException e) {
	    	e.printStackTrace();
	    }
        try  
        {  
        	Log.v(l_tag, "call");
        	String msg = SoapHelper.GetResponse(methodName, params, endpoint);
        	Log.v(l_tag, "callback");
            if (msg != null)  
            {  
                // 获取服务器响应返回的SOAP消息                
                //JSONArray json_arr = new JSONArray(msg);
                //JSONObject json_obj = (JSONObject) json_arr.get(0);
                
                //String id = json_obj.getString("B990sbgjzX")
            	Log.v(l_tag, msg);
                return msg;
            }else{  
                return "Null";  
            }  
        }  
        /*catch (IOException e)  
        {  
            e.printStackTrace();  
            return e.getLocalizedMessage();  
        }  
        catch (XmlPullParserException e)  
        { 
            e.printStackTrace();  
            return e.getLocalizedMessage();  
        }  */
        catch (Exception e) {
            e.printStackTrace();  
            return e.getLocalizedMessage(); 
		}
	}

public static String GetResponse(String method,List<BasicNameValuePair> params,String wsurl)
	{                   
	 try {
		  String WSUrl=wsurl; 
		  String url = WSUrl;

		  // 实例化SoapObject对象  
		  SoapObject request = new SoapObject(namespace, method);
		  if (params.size() > 0){
			  // 添加请求参数  
			  for(int i=0,len=params.size();i<len;i++){                 
				  request.addProperty(params.get(i).getName(), 
				  params.get(i).getValue());             
			   }
		  }
		  // 使用SOAP1.1协议创建Envelop对象
		  SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); 
		  // 设置与.Net提供的Web Service保持较好的兼容性,适用rpc模式设置false
		  envelope.dotNet = true;
		  //设置请求参数
		  envelope.setOutputSoapObject(request);
		  // 创建HttpTransportSE传输对象 
		  HttpTransportSE androidHttpTransport = new HttpTransportSE(url);
		  androidHttpTransport.call(namespace + method, envelope);
		  SoapPrimitive result = (SoapPrimitive)envelope.getResponse();
		  return result.toString();         
	    } catch (Exception e) {
    		System.out.println(e.getMessage());
	    	return "Error:调用web services出错！"+e.getMessage();         
	 	}     
	 }

问题描述：
可以成功访问到我的webservice，没有参数可以得到返回的结果，带参数的情况下，webservice没有接收到终端发来的参数，不知道是什么问题。
附图：androidlog错误日志


附图：终端程序运行到最后就自动停止了

麻烦大大们给看下，非常感谢