JSP将表单提交并在本页中显示

代码如下:

<%@ page language="java" import="java.util.*" pageEncoding="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 'index.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">
	-->
  </head>
  <!-- 将表单提交并在本页显示 -->
  <body>
     <form action="index.jsp" method="post">
    用户登录:<input type="text" name="user" /><br>
    密码:<input type="password" name="password"/><br>
    <input type="submit"> 
    </form>
    <hr>
    <% 
    if((request.getParameter("user")!=null)&&(request.getParameter("password")!=null)){ %>
    用户参数名为:<%=request.getParameter("user")%><br>
    密码为:<%=request.getParameter("password")%>
   <%} %>
  </body>
</html>


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