采用NETBEANS开发的JAVA webservice服务PB无法得到里面的服务

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package a;



import javax.jws.WebService;

import javax.jws.WebMethod;

import javax.jws.WebParam;



/**

 *

 * @author Administrator

 */

@WebService(serviceName = "test")

public class test {



    /**

     * Web 服务操作

     */

    @WebMethod(operationName = "sayhellow")

    public String sayhellow() {

        //TODO write your implementation code here:

        return "sayhellow";

    }

}