数据操作后，页面alert提醒例子2-ajax实现

数据操作后，页面alert提示例子2-ajax实现
function showTipMesage(){$.ajax({ type: "POST", url: "showTipMessage.action", async: false, success: function(msg){ if(msg!="null"){ alert( msg ); } }});}

?? 调用

???

<script type="text/JavaScript"> showTipMesage();... other code

?

??

2.baseAction配置文件xml

?? <action name="showTipMessage" method="showTipMessage">

3.后台BaseAction.java代码-获得提示信息

?

  public String showTipMessage() throws IOException{        HttpServletRequest request = ServletActionContext.getRequest();        String tipMessage=(String) request.getSession().getAttribute("tipMessage");        HttpServletResponse response = ServletActionContext.getResponse();        if(tipMessage==null){        tipMessage="null";        }        response.getWriter().write(tipMessage);        request.getSession().removeAttribute("tipMessage");        return null;     }

?

4.后台BaseAction.java代码-添加提示信息

?

? public void addTipMessage()(String msg) {
????? ServletActionContext.getRequest().setAttribute("message", message);
???}

?

?

?