发布服务时提示：
严重: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webServiceSample': Invocation of init method failed; nested exception is javax.xml.ws.WebServiceException: java.lang.IllegalArgumentException: An operation with name [{http://service.cxf.cvicse.com/}sayUserName] already exists in this service
Caused by: javax.xml.ws.WebServiceException: java.lang.IllegalArgumentException: An operation with name [{http://service.cxf.cvicse.com/}sayUserName] already exists in this service
WebServiceSample里有两个重载的方法sayUserName，不能成功发布服务，应该如何处理，请指教！