jsp中获取session的值

时间:2022-11-05 19:18:09

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'js_session.jsp' starting page</title>
    
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">    
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->
 <script type="text/javascript">
  function show(){
   alert("显示session值");
   //document.getElementById("xianshi").value=<%=(String)session.getAttribute("myName")%>
   var s="<%=session.getAttribute("myName")%>";
   alert("1");
   alert(s);
   alert("2");
  }
 </script>
  </head>
  
  <body>
    
    js获取session值<br>
    <%session.setAttribute("myName","xxx");%>
    <input type="text" name="xianshi"><input type="button" value="text" onclick="show()">
  </body>

</html>