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JSP之表單提交get和post的詳解及實例

一 get和post的區別

二實戰（post方式提交）

1、login.jsp

%@ 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%>" rel="external nofollow" rel="external nofollow" >
  
  title>My JSP 'login.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" rel="external nofollow" rel="external nofollow" >
    -->
 
 /head>
 
 body>
  h1>用戶登錄/h1>
  hr>
  form action="dologin.jsp" name="loginForm" method="post">
   table>
    tr>
     td>用戶名：/td>
     td>input type="text" name="username"/>/td>
    /tr>
    tr>
     td>密碼：/td>
     td>input type="password" name="password"/>/td>
    /tr>
    tr>
     td colspan="2">input type="submit" value="登錄">/td>
    /tr>
   /table>
  /form>
 /body>
/html>

2、dologin.jsp

%@ 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%>" rel="external nofollow" rel="external nofollow" >
  
  title>My JSP 'dologin.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" rel="external nofollow" rel="external nofollow" >
    -->
 
 /head>
 
 body>
  h1>登錄成功/h1>
  hr>
 /body>
/html>

三運行結果

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JSP之表單提交get和post的區別詳解及實例