JS表单验证类HTML代码实例
以前用的比较多的一个JS表单验证类，对于个人来说已经够用了，有兴趣的可以在此基础上扩展成ajax版本。本表单验证类囊括了密码验证、英文4~10个 字符验证、 中文非空验证、大于10小于100的数字、浮点数验证、日期验证、邮件检查、网址验证、固定电话和手机号码验证、IP地址验证、邮编和QQ号码验证、 MSN和身份证验证等。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>番茄表单验证类HTML代码示例</title> <script language="javascript" type="text/javascript"> //去除字符串两边空格 String.prototype.trim = function () { return this.replace(/(^\s+)|(\s+$)/g, ""); } //检测字符串是否为空 String.prototype.isEmpty = function () { return !(/.?[^\s ]+/.test(this)); } //检测值是否介于两个指定值之间 String.prototype.isBetween = function (val, min, max) { return isNaN(val) == false && val >= min && val <= max; } //获取最大值或最小值 String.prototype.getBetweenVal = function (what) { var val = this.split(','); var min = val[0]; var max = val[1] == null ? val[0] : val[1]; if (parseInt(min) > parseInt(max)) { min = max; max = val[0]; } return what == 'min' ? (isNaN(min) ? null : min) : (isNaN(max) ? null : max); } var validator = function (formObj) { this.allTags = formObj.getElementsByTagName('*'); //正则表达式验证字符串 this.reg = new Object(); this.reg.english = /^[a-zA-Z0-9_\-]+$/; this.reg.chinese = /^[\u0391-\uFFE5]+$/; this.reg.number = /^[-\+]?\d+(\.\d+)?$/; this.reg.integer = /^[-\+]?\d+$/; this.reg.float = /^[-\+]?\d+(\.\d+)?$/; this.reg.date = /^(\d{4})(-|\/)(\d{1,2})\2(\d{1,2})$/; this.reg.email = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/; this.reg.url = /^(((ht|f)tp(s?))\:\/\/)[a-zA-Z0-9]+\.[a-zA-Z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/; this.reg.phone = /^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/; this.reg.mobile = /^((\(\d{2,3}\))|(\d{3}\-))?((13\d{9})|(159\d{8}))$/; this.reg.ip = /^(0|[1-9]\d?|[0-1]\d{2}|2[0-4]\d|25[0-5]).(0|[1-9]\d?|[0-1]\d{2}|2[0-4]\d|25[0-5]).(0|[1-9]\d?|[0-1]\d{2}|2[0-4]\d|25[0-5]).(0|[1-9]\d?|[0-1]\d{2}|2[0-4]\d|25[0-5])$/; this.reg.zipcode = /^[1-9]\d{5}$/; this.reg.qq = /^[1-9]\d{4,10}$/; this.reg.msn = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/; this.reg.idcard = /(^\d{15}$)|(^\d{17}[0-9Xx]$)/; //输出错误信息 this.tip = new Object(); this.tip.unknow = '未找到类型，无法验证。'; this.tip.paramError = '参数设置错误，无法验证。'; this.tip.required = '不允许为空。'; this.tip.english = '仅允许英文字符及下划线 (a-zA-Z0-9_)。'; this.tip.chinese = '仅允许中文字符。'; this.tip.number = '不是一个有效数字。'; this.tip.integer = '不是一个有效整数。'; this.tip.float = '不是一个有效的浮点数。'; this.tip.date = '不是一个有效的日期格式。 (例如：2007-06-29)'; this.tip.email = '不是一个有效的电子邮件格式。'; this.tip.url = '不是一个有效的超链接格式。'; this.tip.phone = '不是一个有效的电话号码。'; this.tip.mobile = '不是一个有效的手机号码。'; this.tip.ip = '不是一个有效的IP地址。'; this.tip.zipcode = '不是一个有效的邮政编码。'; this.tip.qq = '不是一个有效的QQ号码。'; this.tip.msn = '不是一个有效的MSN帐户。'; this.tip.idcard = '不是一个有效的身份证号码。'; //获取控件名称 this.getControlName = function () { return this.element.getAttribute('controlName') == null ? '指定控件的值' : this.element.getAttribute('controlName'); } //设定焦点 this.setFocus = function (ele) { try { ele.focus(); } catch (e){} } //设置边框颜色 this.setBorderColor = function (ele) { var borderColor = ele.currentStyle ? ele.currentStyle.borderColor : document.defaultView.getComputedStyle(ele, null)['borderColor']; ele.style.borderColor = '#ff9900'; ele.onkeyup = function () { this.style.borderColor = borderColor; } } //输出错误反馈信息 this.feedback = function (type) { try { var msg = eval('this.tip.' + type) == undefined ? type : this.getControlName() + eval('this.tip.' + type); } catch (e) { msg = type; } this.setBorderColor(this.element); alert(msg); this.setFocus(this.element); }; //执行字符串验证 this.validate = function () { var v = this.element.value; //验证是否允许非空 var required = this.element.getAttribute('required'); if (required != null && v.isEmpty()) { this.feedback('required'); return false; } //验证是否合法格式 var dataType = this.element.getAttribute('dataType'); if (!v.isEmpty() && dataType != null && dataType.toLowerCase() != 'password') { dataType = dataType.toLowerCase(); try { if (!(eval('this.reg.' + dataType)).test(v)) { this.feedback(dataType); return false; } } catch(e) { this.feedback('unknow'); return false; } } //执行数据验证 var confirm = this.element.getAttribute('confirm'); if (confirm != null) { try { var data = eval('formObj.' + confirm + '.value'); if (v != data) { alert('两次输入的内容不一致，请重新输入。'); this.setBorderColor(this.element); this.setFocus(this.element); return false; } } catch (e) { this.feedback('paramError'); return false; } } //验证数字大小 var dataBetween = this.element.getAttribute('dataBetween'); if (!v.isEmpty() && dataBetween != null) { var min = dataBetween.getBetweenVal('min'); var max = dataBetween.getBetweenVal('max'); if (min == null || max == null) { this.feedback('paramError'); return false; } if (!v.isBetween(v.trim(), min, max)) { this.feedback(this.getControlName() + '必须是介于 ' + min + '-' + max + ' 之间的数字。'); return false; } } //验证字符长度 var dataLength = this.element.getAttribute('dataLength'); if (!v.isEmpty() && dataLength != null) { var min = dataLength.getBetweenVal('min'); var max = dataLength.getBetweenVal('max'); if (min == null || max == null) { this.feedback('paramError'); return false; } if (!v.isBetween(v.trim().length, min, max)) { this.feedback(this.getControlName() + '必须是 ' + min + '-' + max + ' 个字符。'); return false; } } return true; }; //执行初始化操作 this.init = function () { for (var i=0; i<this.allTags.length; i++) { if (this.allTags[i].tagName.toUpperCase() == 'INPUT' || this.allTags[i].tagName.toUpperCase() == 'SELECT' || this.allTags[i].tagName.toUpperCase() == 'TEXTAREA') { this.element = allTags[i]; if (!this.validate()) return false; } } }; return this.init(); } </script> </head> <body> <form id="form1" name="form1" method="post" action="" onsubmit="return validator(this);"> <table width="600" border="0" cellspacing="0" cellpadding="2" style="font:12px Tahoma"> <tr> <td>密码</td> <td>password</td> <td><input type="text" name="password" controlName="密码" dataType="password" /></td> </tr> <tr> <td>密码确认</td> <td>confirm</td> <td><input type="text" name="confirm" controlName="密码确认" confirm="password" /></td> </tr> <tr> <td width="57">英文</td> <td width="60">english</td> <td width="471"><input type="text" name="english" controlName="英文" dataType="english" dataLength="4,10" /> 4~10个字符</td> </tr> <tr> <td>中文</td> <td>chinese</td> <td><input type="text" name="chinese" required="required" controlName="中文" /> 非空</td> </tr> <tr> <td>数字</td> <td>number</td> <td><input type="text" name="number" controlName="数字" dataBetween="10,100" /> 大于10，小于100</td> </tr> <tr> <td>整数</td> <td>integer</td> <td><input type="text" name="integer" controlName="整数" dataType="integer" /></td> </tr> <tr> <td>浮点数</td> <td>float</td> <td><input type="text" name="float" controlName="浮点数" dataType="float" /></td> </tr> <tr> <td>日期</td> <td>date</td> <td><input type="text" name="date" controlName="日期" dataType="date" /></td> </tr> <tr> <td>邮件</td> <td>email</td> <td><input type="text" name="email" controlName="邮件" dataType="email" /></td> </tr> <tr> <td>网址</td> <td>url</td> <td><input type="text" name="url" controlName="网址" dataType="url" /></td> </tr> <tr> <td>电话</td> <td>phone</td> <td><input type="text" name="phone" controlName="电话" dataType="phone" /></td> </tr> <tr> <td>手机</td> <td>mobile</td> <td><input type="text" name="mobile" controlName="手机" dataType="mobile" /></td> </tr> <tr> <td>IP地址</td> <td>ip</td> <td><input type="text" name="ip" controlName="IP地址" dataType="ip" /></td> </tr> <tr> <td>邮编</td> <td>zipcode</td> <td><input type="text" name="zipcode" controlName="邮编" dataType="zipcode" /></td> </tr> <tr> <td>QQ号码</td> <td>qq</td> <td><input type="text" name="qq" controlName="QQ号码" dataType="ip" /></td> </tr> <tr> <td>MSN</td> <td>msn</td> <td><input type="text" name="msn" controlName="MSN" dataType="msn" /></td> </tr> <tr> <td>身份证</td> <td>idcard</td> <td><input type="text" name="idcard" controlName="身份证" dataType="idcard" /></td> </tr> <tr> <td colspan="3" align="left"><input type="submit" name="Submit" value=" 提交 " /></td> </tr> </table> </form> </body> </html>