Hello all!
I am testing a simple example on axis2. I've written a web service named
hello:
public class hello2{
public String hello(String name){
if(name==null)
name = "";
return "hello"+name+"，welcome to the world of web services!";
}
}
And the services.xml file is as follows:
<service name="hello2">
<description>
This service is to say hello to users.
</description>
<parameter name="HelloClass" locked="false">hello2</parameter>
<operation name="hello">
<messageReceiver class="org.apache.axis2.rpc.receivers.RPCMessageReceiver"
/>
</operation>
</service>
I can successfully depoly the hello.aar to axis2 and can see the service on
list of services in axis2 platform. But when I tried to click the lick of
hello?wsdl, it will jump error which says:
description The server encountered an internal error () that prevented it from
fulfilling this request.
exception
java.lang.NullPointerException
org.apache.axis2.engine.AxisEngine.createFaultMessageContext(AxisEngine.java:191)
org.apache.axis2.transport.http.AxisServlet.handleFault(AxisServlet.java:191)
org.apache.axis2.transport.http.AxisServlet.doGet(AxisServlet.java:125)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
Could anyone tell me what's the problem is?
Thank you very much!
yangyang
