webservice方法没有参数

<xsd:element name="CommonReq">
<xsd:complexType>
<xsd:sequence />
</xsd:complexType>
</xsd:element>

<wsdl:message name="CommonRequest">
<wsdl:part element="tns:CommonReq" name="parameters" />
</wsdl:message>
<wsdl:operation name="OrgMemberQuery" >
<wsdl:input message="tns:CommonRequest" />
<wsdl:output message="tns:OrgMemberQueryResponse" />
</wsdl:operation>

ws = new WebService();
ws.wsdl = "http://192.168.2.172:8080/axis2/services/ScService?wsdl";
ws.loadWSDL();
ws.addEventListener(FaultEvent.FAULT, faultHandler);
ws.addHeader(new AuthHeader("admin", "1"));

ws.addEventListener(ResultEvent.RESULT, resultOrgGroup);
ws.getOperation("OrgGroupQuery").send(null);