标签:box code char jsp.6 result var Math
<%@ page contentType="text/html;charset=UTF-8" language="java"%> <html> <head> <title>登陆界面</title> <link rel="stylesheet" href="./layui/css/layui.css"> <link rel="stylesheet" href="./css/adminLogin.css"> </head> <body> <div class="wrap"> <img src="img/1.jpg" class="imgStyle"> <div class="loginForm"> <form action="get.jsp" method="POST"> <div class="logoHead"></div> <div class="usernameWrapDiv"> <div class="usernameLabel"> <label>用户名:</label> </div> <div class="usernameDiv"> <i class="layui-icon layui-icon-username adminIcon"></i> <input id="loginUsername" class="layui-input adminInput" type="text" name="name" placeholder="输入用户名"> </div> </div> <div class="usernameWrapDiv"> <div class="usernameLabel"> <label>密码:</label> </div> <div class="passwordDiv"> <i class="layui-icon layui-icon-password adminIcon"></i> <input id="loginPassword" class="layui-input adminInput" type="password" name="password" placeholder="输入密码"> </div> </div> <div class="usernameWrapDiv"> <div class="usernameLabel"> <label>验证码:</label> </div> <div class="cardDiv"> <input id="loginCard" class="layui-input cardInput" type="text" name="card" placeholder="输入验证码"> </div> <div id="code_box" class="codeDiv">xxxx</div> </div> <div class="usernameWrapDiv"> <div class="submitLabel"> <label>没有账号?<a href="#" id="loginRegister">点击注册</a> </label> </div> <div class="submitDiv"> <input id="loginBtn" type="submit" class="submit layui-btn layui-btn-primary" value="登录"></input> </div> </div> </form> </div> </div> <script> var code_box = document.getElementById("code_box"); function refreshCode() { var code = '0123456789qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM', char = '', result = ''; for ( var i = 0; i < 4; i++) { var code_index = Math.round(Math.random() * 61); var char = code[code_index]; if (result.toUpperCase().indexOf(char.toUpperCase()) > -1) { i--; continue; } result += char; } code_box.innerHTML = result; } code_box.onclick = refreshCode; </script> <% String name=""; if(!session.isNew()){ name=(String)session.getAttribute("name"); if (name==null){ name=""; } } %> </body> </html>
<%@ page contentType="text/html;charset=UTF-8" language="java"%> <%@ page language="java" import="java.util.*"%> <%@ page import="java.sql.*"%> <html> <head> <title></title> </head> <body> <%--<%--%> <%-- String name=request.getParameter("name");--%> <%-- String password=request.getParameter("password");--%> <%-- if(name.equals("zs")&&password.equals("123")){--%> <%--%><p>welcome<%=name%></p><%--%> <%--}else{--%> <%--%><p>登陆失败</p><%--%> <%-- }--%> <%--%>--%> <% PreparedStatement pre = null; Statement sql; ResultSet rs; request.setCharacterEncoding("utf-8"); String Name = request.getParameter("name"); String Ps = request.getParameter("password"); Name.trim(); Ps.trim(); request.setCharacterEncoding("utf-8"); Class.forName("com.mysql.cj.jdbc.Driver"); Connection conn = DriverManager.getConnection( "jdbc:mysql://localhost:3306/jsp_db?serverTimezone=GMT", "root", "135790"); sql = conn.createStatement(); String SQL = "select * from jsp_data where uname=? and upassword=?"; pre = conn.prepareStatement(SQL); pre.setString(1, Name); pre.setString(2, Ps); rs = pre.executeQuery(); if (rs.next()) { String name = rs.getString(1); session.setAttribute("name", name); %><p> 欢迎登陆:<%=name%></p> <% } else { %> <p>输入错误,请重新登录</p> <a href="index.jsp"><button>返回登录界面</button> </a> <% } rs.close(); sql.close(); conn.close(); %> </body> </html>
标签:box,code,char,jsp.6,result,var,Math 来源: https://www.cnblogs.com/wu-di-821-821/p/14649718.html
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