index.jsp
1 <body> 2 <div style="margin: 0 auto; 500px; text-align: center;"> 3 <img alt="图片" src="logo.jpg" width="200px"> 4 <h1>绿叶网上书店系统</h1> 5 <form method="post" action="doLogin.jsp"> 6 用户名：<input type="text" name="userName"><br> 7 查 询：<input type="password" name="pwd"><br> 8 <input type="submit" value="提交"> 9 <input type="reset" value="取消"> 10 </form> 11 </div> 12 </body>
doLogin.jsp
1 <body> 2 <% 3 request.setCharacterEncoding("UTF-8"); 4 String name = request.getParameter("userName"); 5 String pwd = request.getParameter("pwd"); 6 if("admini".equals(name.trim()) && "admini".equals(pwd.trim())){ 7 session.setAttribute("name", name); 8 session.setAttribute("pwd", pwd); 9 response.sendRedirect("showLoginInfo.jsp"); 10 } 11 %> 12 </body>
show.jsp
1 <body> 2 <% 3 String name = (String)session.getAttribute("name"); 4 String pwd = (String)session.getAttribute("pwd"); 5 out.print("欢迎 "+name+" 登录成功！！！！ 用户密码为："+pwd); 6 %> 7 </body>