一个简单ajax

//增加记录
 public String addRemind(){
  System.out.println("我的博客");
  HttpServletRequest request=ServletActionContext.getRequest();
  HttpServletResponse response = ServletActionContext.getResponse();
  response.setContentType("text/html; charset=UTF-8");
  response.setHeader("Cache-Control", "no-cache");
  PrintWriter out=null;
  try {
   out = response.getWriter();
  } catch (IOException e) {
   e.printStackTrace();
  }
        String str="我的博客";
  try {
   out=response.getWriter();
  } catch (IOException e) {
   e.printStackTrace();
  }
  out.print(str);
  out.flush();
  out.close();
  
  return null;
 }
 

*****************************************************************
 <script language="JavaScript" type="text/javascript">

 $(document).ready(function(){

 
setInterval("gog()",5000);
 })
 
 function gog(){
   $.ajax({
   url : '<%=basePath %>remindaddRemind',
   type : 'post',
   dataType : "text",
   success : function(text) {
    isPro = false;
    alert(text);
    if(""!=text){
    $('#MyNoticesDiv').html(text);
    }
   }
  }); 
 }
    </script>

**************************************************************

    <div id="MyNoticesDiv" style="height: 195;width: 195">
</div>