急 啊soap2调用webservice SoapFault - faultcode: 'soapenv:Server' faultstring: 'I解决方法

        String url;        Propertytool pt = new Propertytool("Sysconfig.properties");        url = pt.getValue("serurl") + servername + "?wsdl";        // 实例化SoapObject对象        SoapObject spobejct = new SoapObject(namespace, funcname);        // 传入参数        addpre(spobejct, hm);        // 设置Soap的请求信息，参数部分为Soap协议的版本号        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(                SoapEnvelope.VER11);        envelope.bodyOut = spobejct;        AndroidHttpTransport transport = new AndroidHttpTransport(url);        try {            transport.call(null, envelope);        } catch (XmlPullParserException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        try {            Object o = envelope.getResponse();//异常在这里抛出来的。郁闷的很，前面的调用都是正常的，换了 3 个参数的 服务方法就报错了。            return o;        } catch (Exception ee) {            Log.v("fsfs", ee.getMessage());        }        return null;