This time I will bring you jquery's form verification submission, what are the precautions for jquery form verification submission, the following is a practical case, let's take a look.
Instructions:
1. The js script file path in the code needs to be replaced with your own directory file
2. Ajax is added to the code to verify whether the account exists
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>表单验证</title> <style type="text/css"> font { font-size: 10px; } .info { color: #AAAAAA; } .errormsg { color: #FF3030; } .errorinput { border-color: #FF3030; border-width: 1px; } .ok { color: #32CD32; } </style> <script type="text/javascript" src="/airticleMgr/js/jquery-1.8.3.min.js"></script> <script type="text/javascript"> //账号是否验证过 var accountIsChecked = false; var accountIsOK = false; var passwdIsOK = false; var confirmpwdIsOK = false; var phoneIsOK = false; $(function() { // 验证账号 $("#account").focus(function() { focus_checkaccount(); }).keyup( function() { $("#accountmsg").text("支持中文、字母、数字组合").removeClass() .addClass("info"); accountIsChecked = false; }).blur(function() { blur_checkaccount(); }) // 验证密码 $("#pwd").focus(function() { $("#pwdmsg").text("建议使用数字和字母的组合").removeClass().addClass("info"); }).blur(function() { blur_checkpwd(); blur_confirmpwd(); }); // 验证二次密码 $("#confirmpwd").focus(function() { $("#confirmmsg").text("请再次确认密码").removeClass().addClass("info"); }).blur(function() { blur_confirmpwd(); }); // 验证手机号码 $("#phone").focus(function() { $("#phonemsg").text("建议输入常用手机").removeClass().addClass("info"); }).blur(function() { blur_checkphone(); }) }); function focus_checkaccount() { if (!accountIsChecked) { $("#accountmsg").text("支持中文、字母、数字组合").removeClass() .addClass("info"); } } function blur_checkaccount() { var account = $("#account").val(); if (account != "") { // 判断account是否验证过 if (!accountIsChecked) { // 未验证过,则进行验证 ajax_checkaccount(account); } } else { $("#accountmsg").text(""); accountIsOK = false; } } // ajax请求验证account function ajax_checkaccount(account) { $.get("/airticleMgr/member", { m : "checkAccount", account : account }, function(data) { if ("true" == data) { $("#accountmsg").text("该账号已被注册").removeClass().addClass( "errormsg"); accountIsOK = false; } else { $("#accountmsg").text("√").removeClass().addClass("ok"); accountIsOK = true; } }); accountIsChecked = true; } function blur_checkpwd() { var lpwd = $("#pwd").val().length; if (lpwd > 0) { if (lpwd < 6) { $("#pwdmsg").text("长度在6-20位之间").removeClass().addClass( "errormsg"); passwdIsOK = false; } else { $("#pwdmsg").text("√").removeClass().addClass("ok"); passwdIsOK = true; } } else { $("#pwdmsg").text(""); passwdIsOK = false; } } function blur_confirmpwd() { var pwd = $("#pwd").val(); var confirmpwd = $("#confirmpwd").val(); if (confirmpwd != "") { if (confirmpwd == pwd) { $("#confirmmsg").text("√").removeClass().addClass("ok"); confirmpwdIsOK = true; } else { $("#confirmmsg").text("两次密码输入不一致").removeClass().addClass( "errormsg"); confirmpwdIsOK = false; } } else { $("#confirmmsg").text(""); confirmpwdIsOK = false; } } function blur_checkphone() { var phone = $("#phone").val(); var regix = /^1[34578][0-9]{9}$/; if (phone != "") { if (!regix.test(phone)) { $("#phonemsg").text("手机格式有误").removeClass() .addClass("errormsg"); phoneIsOK = false; } else { $("#phonemsg").text("√").removeClass().addClass("ok"); phoneIsOK = true; } } else { $("#phonemsg").text(""); phoneIsOK = false; } } // 表单验证 function check_form() { if (!accountIsOK) { if ($("#account").val() == "") { $("#accountmsg").text("请输入账号").removeClass().addClass( "errormsg"); } else { } return false; } if (!passwdIsOK) { if ($("#pwd").val() == "") { $("#pwdmsg").text("请输入密码").removeClass().addClass("errormsg"); } else { } return false; } if (!confirmpwdIsOK) { if ($("#confirmpwd").val() == "") { $("#confirmmsg").text("请再次输入密码").removeClass().addClass( "errormsg"); } else { } return false; } if (!phoneIsOK) { if ($("#phone").val() == "") { $("#phonemsg").text("请输入手机").removeClass().addClass("errormsg"); } else { } return false; } if (accountIsOK && passwdIsOK && confirmpwdIsOK && phoneIsOK) { alert("欢迎注册"); return true; } else { alert("请检查信息"); return false; } } </script> </head> <body> <h2>会员注册</h2> <form action="/airticleMgr/member?m=regist" method="post" onsubmit="return check_form()"> <table> <tr height="30px"> <td>帐 号:</td> <td><input type="text" id="account" name="account" placeholder="您的登录账号"></td> <td><font id="accountmsg"></font></td> </tr> <tr height="30px"> <td>设置密码:</td> <td><input type="password" id="pwd" name="pwd" placeholder="设置您的密码" maxlength="20"></td> <td><font id="pwdmsg"></font></td> </tr> <tr height="30px"> <td>确认密码:</td> <td><input type="password" id="confirmpwd" name="confirmpwd" placeholder="确认您的密码" maxlength="20"></td> <td><font id="confirmmsg"></font></td> </tr> <tr height="30px"> <td>手 机:</td> <td><input type="text" id="phone" name="phone" placeholder="您的手机号码"></td> <td><font id="phonemsg"></font></td> </tr> <tr height="7px"></tr> <tr> <td colspan="2" align="center"><input type="submit" value="立即注册" style="height: 30px; width: 100%; background-color: #FF3030; color: white; border: 0"> </td> <td></td> </tr> </table> </form> </body> </html>
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!
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