public Object invoke(MethodInvocation invocation){
        // TODO Auto-generated method stub
        
        Object obj = null;
        System.err.println(".. invoke");
        try {
            obj = invocation.proceed();
        } catch (Throwable e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            System.out.println("Throwable e)");
        }
        System.err.println("invoke .. ");
        return obj;
    }

    protected String __returncode;            //返回标识
    protected String __returnmsg;            //返回信息
    protected String __returnvalue;            //返回值
    
    protected String __usrno;                //登陆用户
    protected String __pswd;                //登陆用户密码
    protected String __ipaddr;                //登陆用户机器IP地址
    protected String __macaddr;                //登陆用户机器MAC地址