页面定时刷新后台数据

<script type="text/javascript">
function reLoad(){
$.ajax({
url : '${ctx}/wq/realData!list2.do',
type : 'get',
success : function(rlt) {
var body = $("body");
body.empty();
$(rlt).appendTo(body);
setTimeout(reLoad, 50000);
}
});
}

$(function(){
setTimeout(reLoad, 10);
})
</script>

//后台往前台写

HttpServletResponse response = ServletActionContext.getResponse();
//用response向前台写数据
response.getWriter().write(rlt);
response.getWriter().flush();
response.getWriter().close();