Jquery学习之路(一)简单的表单验证
<%@ 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>Jquery制作表单验证</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"> <script src="<%=basePath%>jQuery/js/jquery-2.1.4.min.js"></script> <style> .state1 { color: #aaa; } .state2 { color: #000; } .state3 { color: red; } .state4 { color: green; } </style> </head> <body> <form action='#' method='post'> 用 户 名:<input type="text" name="username" id="username"> <span class='state1'>请输入用户名</span><br /> <br /> 密 码:<input type="password" name="password" id="password"> <span class='state1'>请输入密码</span><br /> <br /> 确认密码:<input type="password" name="repass" id="repass"> <span class='state1'>请输入确认密码</span><br /> <br /> 邮 箱:<input type="text" name="email" id="email"> <span class='state1'>请输入邮箱</span><br /> <br /> <input type="submit" id="submit"> </form> <script type="text/javascript"> $(function() { var ok1 = false; var ok2 = false; var ok3 = false; var ok4 = false; // 验证用户名 $('#username').focus( function() { $(this).next().text('用户名应该为3-20位之间').removeClass( 'state1').addClass('state2'); }).blur( function() { if ($(this).val().length >= 3 && $(this).val().length < 12 && $(this).val() != '') { $(this).next().text('输出正确').removeClass('state1') .addClass('state4'); ok1 = true; } else { $(this).next().text('用户名应该为3-20位之间').removeClass( 'state1').addClass('state3'); } }); //验证密码 $('#password').focus( function() { $(this).next().text('密码应该为6-20位之间').removeClass( 'state1').addClass('state2'); }).blur( function() { if ($(this).val().length > 6 && $(this).val().length < 20 && $(this).val() != '') { $(this).next().text('输入成功').removeClass('state1') .addClass('state4'); ok2=true; }else{ $(this).next().text('密码应该为6-20位之间').removeClass( 'state1').addClass('state3'); } }); //验证确认密码 $('#repass').focus( function() { $(this).next().text('输入的确认密码要和上面的密码一致,规则也要相同') .removeClass('state1').addClass('state2'); }).blur( function() { if ($(this).val().length >= 6 && $(this).val().length <= 20 && $(this).val() != '' && $(this).val() == $('#password') .val()) { $(this).next().text('输入成功').removeClass('state1') .addClass('state4'); ok3 = true; } else { $(this).next().text('输入的确认密码要和上面的密码一致,规则也要相同') .removeClass('state1').addClass('state3'); } }); //验证邮箱 $('#email') .focus( function() { $(this).next().text('请输入正确的EMAIL格式') .removeClass('state1').addClass( 'state2'); }) .blur( function() { if ($(this) .val() .search( /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/) == -1) { $(this).next().text('请输入正确的EMAIL格式') .removeClass('state1').addClass( 'state3'); } else { $(this).next().text('输入成功').removeClass( 'state1').addClass('state4'); ok4 = true; } }); //提交按钮,所有验证通过方可提交 $('#submit').click(function() { if (ok1 && ok2 && ok3 && ok4) { $('form').submit(); } else { return false; } }); }); </script> </body> </html>
相关推荐
tztzyzyz 2020-07-20
nercon 2020-07-26
nercon 2020-07-16
hzyuhz 2020-06-28
xustart0 2020-06-14
YAruli 2020-06-13
Kakoola 2020-05-17
ThinkingLink 2020-05-16
85443563 2020-04-30
xcguoyu 2020-03-04
somboy 2020-03-03
WangJiangNan 2020-01-07
Elements小帅 2020-01-16
Chinahdy 2020-01-10
nxcjh 2020-01-03
poplpsure 2020-01-06