使用JSP实现简单的用户登录注册页面示例代码解析_JSP编程
留下邮箱，我做过一个，发给你，注销你自己写吧，只要把session置空就行了，我的程序里你可以在一个超链接里面写session.getAttribute("uname")=null;,在跳转到登陆界面就行了www.zgxue.com防采集请勿采集本网。
实验要求：
不建议用js,很容易就查到用户名和密码 asp简单认证 <%@LANGUAGE="V submit" name="button" id="button" value="登录"
将实验2中的系统用户登录和注册页面改为JSP页面，并部署自己的Web应用于Tomcat服务器中
V是view,是现实显示层,也就是用jsp来做,注意,在jsp中要尽量少用java脚本,这也是我们的 用户名或者密码不存在或错误,就跳转到登陆失败提示页面。呵呵,我已经尽量简洁的说
具体要求：
同意1楼的方法,我来写具体点吧。 首先要在后台接收这个数据。 Sting username = request.getParameter("这里写JSP页面中用户名文本框的name"); Sting passw
完成登录JSP页面设计和注册页面设计
本文实例讲述了纯JSP实现的简单登录的方法。分享给大家供大家参考,具体如下: 文件 登录失败:用户名或密码不正确～ <% } } %> </body> </html> logout.jsp源
在登录页面表单中使用request对象获取用户信息，建立新的JSP页面完成登录验证（用户名和密码自己指定即可）。
把驱动包放在项目下,看下数据库是不是打开了、
验证结果显示（如登录成功/用户名密码错误，可以使用JavaScript，也可以使用新的JSP页面）。
// end else if my_mc.cat._visible =0; dati = filexml.firstChild.childNodes[categoriasito].childNodes; for (i=0; i<dati.length; i++) { my_mc.cat.duplicateMovieClip("cat&quo
在注册页面表单中使用request对象获取用户注册信息（注册项目由自己指定），在新的JSP页面显示用户注册信息，并提示注册成功。
登陆验证 你就有javaScript 写,登录界面这东西应该是最简单的了,你是学习还是其它的方面要自己使用?
代码
登录页面index.html
注: 由于时间仓促,程序可能有细小的问题!但绝对可以满足你的需要了!如果你知道JSP什 while(rs.next()) { out.println("登陆成功!"); out.println("您的用户名是:
<!DOCTYPE html><html lang="zh-CN"><head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>jsp作业</title> <link href="css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"></head><body><nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="./" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >jsp作业</a> </div> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav navbar-right"> <li><a href="login.jsp" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >登录</a></li> </ul> </div> </div></nav><div class="container"> <div class="jumbotron"> <h1>Hello, world!</h1> <p>这是一个jsp作业</p> </div></div></body></html>
在数据库中多加一列 在注册的时候 在注册信息默认为一个数值 管理员 为另一个数值 这样不就区分 权限不就 很好分配
登录页面login.jsp
可以凭借Baiduhi提示我们 有机会能够处理你所遇到的工作 相关的要求也能够提示我们 ES:\\7F2C225C4AB23C90446118FA3092DF35 交易提醒:预付定金有
<%@ page contentType="text/html; charset=utf-8" language="java"%><html lang="zh-CN"><head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>登录</title> <link href="css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"></head><body><nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="./" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >jsp作业</a> </div> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav navbar-right"> <li><a href="login.jsp" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >登录</a></li> </ul> </div> </div></nav><div class="container"> <div class="row"> <div class="col-md-4"> </div> <div class="col-md-4"> <form class="form-signin" method="post" action="login-check.jsp"> <h2 class="form-signin-heading">登录到jsp作业</h2> <label for="">用户名</label> <input type="text" name="username" id="username" class="form-control" placeholder="请输入用户名" required autofocus><br> <label for="">密码</label> <input type="password" name="password" id="password" class="form-control" placeholder="请输入密码" required> <div class="checkbox"> <label> <input type="checkbox" value="remember-me" checked="checked"> 记住密码 </label> </div> <button type="submit" class="btn btn-primary" id="btn-login">登录</button> <a href="reg.jsp" rel="external nofollow" rel="external nofollow" class="btn btn-default">注册</a> </form> </div> <div class="col-md-4"> </div> </div></body></html>
晕,这个只要判断一下就可以了嘛。 比如: String username = request.getParameter("login"); String sql = "select * from 用户表 where 用户名='"+username
登录结果页面login-check.jsp
String name="user.xml"; private static String filename; //写一个静态块实现对 <a href='index.jsp'>返回登录</a>"); }else{ out.print("用户名和密码不
<%@ page contentType="text/html; charset=utf-8" language="java"%><html lang="zh-CN"><head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>登录</title> <link href="css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"></head><body><nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="./" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >jsp作业</a> </div> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav navbar-right"> <li><a href="login.jsp" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >登录</a></li> </ul> </div> </div></nav><div class="container"> <div class="row"> <div class="col-md-4"> </div> <div class="col-md-4"> <form class="form-signin" method="post" action="login-check.jsp"> <h2 class="form-signin-heading">登录到jsp作业</h2> <label for="">用户名</label> <input type="text" name="username" id="username" class="form-control" placeholder="请输入用户名" required autofocus><br> <label for="">密码</label> <input type="password" name="password" id="password" class="form-control" placeholder="请输入密码" required> <div class="checkbox"> <label> <input type="checkbox" value="remember-me" checked="checked"> 记住密码 </label> </div> <button type="submit" class="btn btn-primary" id="btn-login">登录</button> <a href="reg.jsp" rel="external nofollow" rel="external nofollow" class="btn btn-default">注册</a> </form> </div> <div class="col-md-4"> </div> </div></body></html>
晕,这个只要判断一下就可以了嘛。 比如: String username = request.getParameter("login"); String sql = "select * from 用户表 where 用户名='"+username
注册页面reg.jsp
JSP+JDBC留言管理程序(代码+笔记),项目02_使用JSP完成简单的登陆程序(代码+笔记),项目03_JSP+DAO留言管理程序(代码+笔记),项目04_使用JSP基于数据库完成用户登陆
<%@ page contentType="text/html; charset=utf-8" language="java"%><html lang="zh-CN"><head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>注册</title> <link href="css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"></head><body><nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="./" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >jsp作业</a> </div> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav navbar-right"> <li><a href="login.jsp" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >登录</a></li> </ul> </div> </div></nav><div class="container"> <div class="row"> <div class="col-md-4"> </div> <div class="col-md-4"> <form class="form-signin" action="reg-submit.jsp" method="post"> <h2 class="form-signin-heading">注册到jsp作业</h2> <div id="info"> </div> <label for="">用户名</label> <input type="text" name="username" id="username" class="form-control" placeholder="请输入用户名" required autofocus><br> <label for="">密码</label> <input type="password" name="password" id="password" class="form-control" placeholder="请输入密码" required><br> <label for="">重复密码</label> <input type="password" name="password2" id="password2" class="form-control" placeholder="请再次输入密码" required maxLength="16"><br> <button type="submit" class="btn btn-primary" id="btn-reg">注册</button> <a href="login.jsp" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="btn btn-default" id="btn-reg">返回登录</a> </form> </div> <div class="col-md-4"> </div> </div></body></html>
不建议用js,很容易就查到用户名和密码 asp简单认证 <%@LANGUAGE="VB submit" name="button" id="button" value="登录"
注册结果页面reg-submit.jsp
<%@ page contentType="text/html; charset=utf-8" language="java"%><html lang="zh-CN"><head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>结果</title> <link href="css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"></head><body><nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="./" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >jsp作业</a> </div> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav navbar-right"> <li><a href="login.jsp" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >登录</a></li> </ul> </div> </div></nav><div class="container"> <% String username = request.getParameter("username"); String password = request.getParameter("password"); String password2 = request.getParameter("password2"); %> <% if(password.equals(password2)){ out.println("<div class='alert alert-success' role='alert'>注册成功</div>"); out.println("<ul class='list-group'>"); out.println("<li class='list-group-item'>用户名：" + username + "</li>"); out.println("<li class='list-group-item'>密码：" + password + "</li>"); out.println("</ul>"); } else{ out.println("<div class='alert alert-danger' role='alert'>两次密码输入不一致，请重新输入</div>"); } %> <!-- <%=username %> <%=password %> <%=password2 %> --></div>
效果
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参考如下：<form action="dologin" method="post" name="frm"> 用户名： <input type="text" name="username" id="username"> <br/> 密码：<input type="password" name="userpwd" id="userpwd"> <br/> <input type="submit" name="subbtn"value="登录"> <input type="reset" name="rebtn"value="取消"></form>servlet：// 设置编码request.setCharacterEncoding("utf-8");response.setCharacterEncoding("utf-8");response.setContentType("text/html;charset=utf-8");// 获取参数String username = request.getParameter("username");String userpwd = request.getParameter("userpwd");// 输出流PrintWriter out = response.getWriter();HttpSession session = request.getSession(true);// UserDao userdao = new UserDao();User user = null;try {user = userdao.getUser(username);} catch (Exception e1) {e1.printStackTrace();}// 登录判断if(!(user== null) &&(user.getPassword().equals(userpwd))){// 存放到session中session.setAttribute("user", user);// 重定向response.sendRedirect("index.jsp");}else{// 登录失败提示out.print("<script>alert('登录失败，请重新登录!!');window.location.href='login.jsp';</script>");}}内容来自www.zgxue.com请勿采集。