.jsp
<script src="${ctx}/assets/js/jquery-1.8.0.js" type="text/javascript">
<div>
<li><input id="lsjl" type="submit" class="btn_history" value="历史记录" onclick="lsBut()" /> </li>
</div>
<script src="${ctx}/assets/js/jquery-1.8.0.js" type="text/javascript">
$(function () {
//历史记录刷新
setInterval(function(){
var lsvalue="历史记录";
$.ajax({
//配置
"url": "${ctx}/yjs!getlsCountview.ce",