后台：request.setAttribute("Tishi", Tishi);
request.getRequestDispatcher("/WEB-INF/register.jsp").forward(request, response);
<%
String tishi=(String)request.getAttribute("Tishi");
%>
<script type="text/javascript">
$(document).ready(function(){
var ts = "<%=tishi%>";
if(ts!=null){
alert(ts);
}
});
</script>
不管怎么判断，js中弹出框都会执行，求大神指点
if(ts){
alert(ts);
}
alert(ts);
}
温馨提示：答案为网友推荐，仅供参考
