Possible SOAP version mismatch: Expecting http://schemas.xmlsoap.org/soap/envelope

　　今天我用c#访问JAVA的WEBSERVICE的时候，出现了以下错误：

Possible SOAP version mismatch: Envelope namespace http://schemas.xmlsoap.org/wsdl/ was unexpected. Expecting http://schemas.xmlsoap.org/soap/envelope/.

     后来在GOOGLE中搜索，才知道是URL地址后面加两个?WSDL的原因，SOAP访问好像不用加WSDL吧？