第8次
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <script type="text/javascript"> function yz(){ if (fm.uname.value=="") { alert("请输入账号"); return; } else if (fm.pas.value=="") { alert("请输入密码"); return; } fm.submit(); } </script> <body> <form action="logindo.jsp" name="fm"> 用户名：<input type="text" name="uname" /> 密码：<input type="password" name="pas" /> <input type="button" value="登录" onclick="yz()" /> </form> </body></html> |
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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <body> <% String uname=request.getParameter("uname"); String pas=request.getParameter("pas"); if(uname.equals(pas)){ session.setAttribute("uname", uname); request.getRequestDispatcher("session.jsp").forward(request, response); } else{ response.sendRedirect("no.jsp"); } %> </body></html> |
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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <body> <% session.invalidate(); response.setHeader("refresh", "5;url=login.jsp"); %> 退出成功！ </body></html> |
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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <body> <% String uname=(String)session.getAttribute("uname"); //如果他是空，说明没登陆，直接访问该页面了 if(uname==null) response.sendRedirect("login.jsp"); %> 欢迎你<%=uname %> <a href="loginout.jsp">退出登录</a> </body></html> |
