webservice注意事项
1、private static final QName PORT_NAME = new QName("http://server.helloworld.cxf.demo/","HelloWorldPort");
一定要在HelloWorld后面加上Port，不然会报如下错误：
Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: Fault string, and possibly fault code, not set
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:161)
at com.sun.proxy.$Proxy35.sayHello(Unknown Source)
at demo.cxf.helloworld.Client.main(Client.java:21)
2、private static final QName PORT_NAME = new QName("http://server.helloworld.cxf.demo/","HelloWorldPort");
"http://server.helloworld.cxf.demo/"默认一定是接口所在包的逆序路径，而不是实现类所在包的逆序路径，
否则会包如下错误
Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: Fault string, and possibly fault code, not set
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:161)
at com.sun.proxy.$Proxy35.sayHello(Unknown Source)
at demo.cxf.helloworld.Client.main(Client.java:21)
Caused by: java.lang.NullPointerException
at org.apache.cxf.transport.http.URLConnectionHTTPConduit.createConnection(URLConnectionHTTPConduit.java:104)
at org.apache.cxf.transport.http.URLConnectionHTTPConduit.setupConnection(URLConnectionHTTPConduit.java:117)
at org.apache.cxf.transport.http.HTTPConduit.prepare(HTTPConduit.java:497)
at org.apache.cxf.interceptor.MessageSenderInterceptor.handleMessage(MessageSenderInterceptor.java:46)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:514)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:423)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:324)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:277)
at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:139)
3、private static final QName PORT_NAME = new QName("http://server.helloworld.cxf.demo/","HelloWorldPort");
"http://server.helloworld.cxf.demo/"最后一个"/"必须得要，否则会报如下错误
Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: Fault string, and possibly fault code, not set
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:161)
at com.sun.proxy.$Proxy35.sayHello(Unknown Source)
at demo.cxf.helloworld.Client.main(Client.java:21)
Caused by: java.lang.NullPointerException
at org.apache.cxf.transport.http.URLConnectionHTTPConduit.createConnection(URLConnectionHTTPConduit.java:104)
at org.apache.cxf.transport.http.URLConnectionHTTPConduit.setupConnection(URLConnectionHTTPConduit.java:117)
at org.apache.cxf.transport.http.HTTPConduit.prepare(HTTPConduit.java:497)
at org.apache.cxf.interceptor.MessageSenderInterceptor.handleMessage(MessageSenderInterceptor.java:46)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:514)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:423)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:324)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:277)
at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:139)
... 2 more
4、而private static final QName SERVICE_NAME = new QName("http://server.helloworld.cddxf.demo/","HelloWorldffgg");
没有如此多的要求，好像怎么命名都行
5、private static final QName PORT_NAME = new QName("http://server.helloworld.cxf.demo/","HelloWorldPort");
“HelloWorldPort”必须是接口名+Port，换成其他的都不行，
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