ws 怎么样能自定义命名空间前缀

soapenv:Header/
soapenv:Body
pp:sayHi
<!--Optional:-->
?
/pp:sayHi
/soapenv:Body
/soapenv:Envelope

cxf怎么处理呢，能让入参有前缀“pp”

ws是通过如下用标签定义的
@WebService
public interface test2In {

@WebMethod
@WebResult
String sayHi(@WebParam String text); 

}