web service：AxisFault faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException

在调用webservice时，出现如下错误信息：
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: org.xml.sax.SAXParseException: The content of elements must consist of well-formed character data or markup.
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}hostname:Websevice2.site

org.xml.sax.SAXParseException: The content of elements must consist of well-formed character data or markup.
at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at com.prochanges.services.register.RegisterService.setCallBackAddr1(RegisterService.java:31)
at com.prochanges.services.register.RegisterService.main(RegisterService.java:72)

实现代码：

    public String setCallBackAddr() {
        try {
            String url = "http://192.168.0.27:7777/axis2/services/SMSService?wsdl";
            String uc = "18926380454";
            String oldpw = "Yj123456";
            String rand = getRandom1();
            String pw = MD5Encode(rand.concat(oldpw).concat(oldpw));
            Service service = new Service();
            Call call = (Call) service.createCall();
            call.setTargetEndpointAddress(new java.net.URL(endpoint));
            call.setOperationName("setCallBackAddr"); // 调用的方法名
            call.setReturnType(XMLType.XSD_STRING); // 返回值类型
            call.addParameter("uc", org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);
            call.addParameter("pw", org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);
            call.addParameter("rand",org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);
            call.addParameter("url", org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);
            Object[] o = {uc, pw, rand, url};
            String connID = (String)call.invoke(o);
            System.out.println("connID: " + connID);
            return connID;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

问题原因：

　　注意参数部分，e.g. 

错误方式：
call.addParameter(uc, org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);
正确方式：需要对参数uc加上双引号
call.addParameter("uc", org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);

WSDL文件描述：

<wsdl:message name="setCallBackAddrRequest">
<wsdl:part name="uc" type="xsd:string"></wsdl:part>
<wsdl:part name="pw" type="xsd:string"></wsdl:part>
<wsdl:part name="rand" type="xsd:string"></wsdl:part>
<wsdl:part name="url" type="xsd:string"></wsdl:part>
</wsdl:message>