为什么我的一直都是进入登录失败界面
龙鸣星星
2016-12-15 20:08
我根据老师教的写的代码 但是不管输入的帐号密码是不是admin 都是进入登录失败的页面 可否帮看看那里错了
//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%>">
<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>
<body>
<big><strong><a>用户登录</a></strong></big><hr>
<form action="dologin.jsp" method="post">
<table>
<tr>
<td>用户名</td>
<td><input type="text" name="usename"/></td>
</tr>
<tr>
<td>密码</td>
<td><input type="password" name="password"/></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="登录"/></td>
</tr>
</table>
</form>
</body>
</html>
//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+"/";
String usename="";
String password="";
request.setCharacterEncoding("utf-8");//防止中文乱码
usename=request.getParameter("usename");
password=request.getParameter("password");
//如果用户名和密码都是admin则登录成功否则失败
if("admin".equals(usename)&&"admin".equals(password))
{
session.setAttribute("loginuesname",usename );
request.getRequestDispatcher("login_success.jsp").forward(request, response);
}
else
{
response.sendRedirect("login_failure.jsp");
}
%>
//login_success.jsp
<%@ 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 'login_success.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>
<body>
<%
String loginusename="";
if(session.getAttribute("loginusename")!=null)
{
loginusename=session.getAttribute("loginusename").toString();
}
%>
欢迎您<font color="red"><%=loginusename%></font>登录成功.
</body>
</html>
//login_failure.jsp
<%@ 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 'login_failure.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>
<body>
<strong>登录失败,请返回重新登录!</strong><br>
<strong><a href="login.jsp">返回登录</a></strong>
</body>
</html>
2回答
-
- qq_森旅迷了鹿_0
- 2016-12-20 16:41:21
自己不细心。看图
-
- javc
- 2016-12-15 22:43:57
什么错误？
JAVA遇见HTML——JSP篇
248277 学习 · 3071 问题
相似问题