jsp与html页面传值，并且显示

一共是两个页面文件：

1、input.html文件，主要是向显示页面并且向页面输入和提交输入的信息；

input.html

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 2 <html>
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 5 <title>input</title>
 6 <script type="text/javascript" language="javascript">
 7     function validate(f){
 8         if(document.form1.info.value == "" || document.form1.info.value==null ){
 9             window.alert("Input is Null! Please input some infomation……");
10             f.info.focus()
11               return false;
12         }
13 
14     }
15 </script>
16 </head>
17 <body>
18 
19 <form id="form1" name="form1" method = "post" action="input.jsp" onSubmit="return validate(this)">
20 The Input informations:<input type="text"  name="info"/>
21 <input type="submit" value="Show"/>
22 </form>
23 </body>
24 </html>

2、input.jsp文件，主要是为了处理有HTML提交来的信息，并且再把处理的结果返回给html。

input.jsp

 1 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 2     pageEncoding="ISO-8859-1"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10 <%
11     String str = request.getParameter("info");
12     out.println("The Input informations:"+"<h1>"+str+"</h1>");
13 %>
14 
15 </body>
16 </html>