java webservice arg0_WebService 意外的元素 (uri:"", local:"arg0")。所需元素为

调接口时，遇见这样的错误：

org.codehaus.xfire.fault.XFireFault: Unmarshalling Error: 意外的元素 (uri:"", local:"arg0")。所需元素为

at org.codehaus.xfire.fault.Soap11FaultSerializer.readMessage(Soap11FaultSerializer.java:31)

at org.codehaus.xfire.fault.SoapFaultSerializer.readMessage(SoapFaultSerializer.java:28)

at org.codehaus.xfire.soap.handler.ReadHeadersHandler.checkForFault(ReadHeadersHandler.java:111)

at org.codehaus.xfire.soap.handler.ReadHeadersHandler.invoke(ReadHeadersHandler.java:67)

at org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:131)

at org.codehaus.xfire.client.Client.onReceive(Client.java:406)

at org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:139)

at org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:48)

at org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)

at org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:131)

at org.codehaus.xfire.client.Invocation.invoke(Invocation.java:79)

at org.codehaus.xfire.client.Invocation.invoke(Invocation.java:114)

at org.codehaus.xfire.client.Client.invoke(Client.java:336)

at org.codehaus.xfire.client.Client.invoke(Client.java:368)

解决办法：

在WebService接口及其实现类的方法名处，加上@WebParam(name = "",targetNamespace="")

例：

public String test( @WebParam(name = "req",targetNamespace="http://test.com/")String req);

public String test(@WebParam(name = "req",targetNamespace="http://test.com/")String req){

System.out.println(req);

return "测试通过";

}

修改后，再次调用，接口可正常调用了。