WebService请求小概率出错。求指点

[lx554968634]

03-21 01:52:01.165: E/CodeUtil(468): org.ksoap2.transport.HttpResponseException: HTTP request failed, HTTP status: -1
03-21 01:52:01.165: E/KSoapRequestImpl(468): err in GetAllCommodityorg.ksoap2.transport.HttpResponseException: HTTP request failed, HTTP status: -1

请求时小概率出现这种错误。求指点下。

SoapObject soapObject = new SoapObject(Define.NAMESPACE,
				Define.FUC_GETALLGAME);
		SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
				SoapEnvelope.VER10);
		envelope.bodyOut = soapObject;
		envelope.dotNet = true;
		envelope.setOutputSoapObject(soapObject);
		HttpTransportSE transport = new HttpTransportSE(Define.ENDPOINT);
		try {
			
			CodeUtil.e(TAG, "msg:"+Define.NAMESPACE + Define.FUC_GETALLGAME) ;
			transport.call(Define.NAMESPACE + Define.FUC_GETALLGAME, envelope);
		} catch (Exception e) {
			e.printStackTrace();
			message.what = Define.ERR_1;
			CodeUtil.e(TAG, "over");
			m_pHandler.sendMessage(message);
			return;
		}