此插件使用angular.js、JQuery实现。（jQuery的引入需在angular 之前）
用户可以 在输入框输入数据后验证 必填项、整数型、浮点型验证。
如果在form 里面的输入框验证，可以点击 提交按钮后，实现 必填项验证。
效果图如下：
(1)验证未通过时，背景标红等样式为
input.ng-invalid, select.ng-invalid { background-color: #ee82ee !important; border: 1px solid #CCC; } .qtip { position: absolute; max-width: 260px; display: none; min-width: 50px; font-size: 10.5px; line-height: 12px; direction: ltr; } .qtip-content { position: relative; padding: 5px 9px; overflow: hidden; text-align: left; word-wrap: break-word; } .qtip-rounded, .qtip-tipsy { -moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px; } .qtipmodal-ie6fix { position: absolute !important; } .box-shadow-tips { background-color: #F63; border-color: #F5A88F; color: white; -moz-box-shadow: 2px 2px 2px #969696; -webkit-box-shaow: 2px 2px 2px #969696; box-shadow: 2px 2px 2px #969696; }因为angular.js 内置验证未通过时，会自动为 标签 增加 .ng-invalid 样式，因为这里重写此样式
input.ng-invalid, select.ng-invalid { background-color: #ee82ee !important; border: 1px solid #CCC; } （2）HTML 代码如下
<body ng-app="myApp"><form name="baseInfoForm"> <div ng-controller="testCtrl"> <input type="text" ng-model="age" my-valid="r"><br> <input type="text" ng-model="name" my-valid="int fn:certCheck"><br> <input type="button" value="提交" ng-click="submit()"> </div></form></body>
(3)此插件使用 directive myValid 实现
app.directive('myValid', ['$parse', 'uiTipsFactory', 'uiValidFactory', function ($parse, tips, valid) { var uiValidAttrIdName = 'ui-valid-id'; return { restrict: 'A', require: 'ngModel', link: function (scope, el, attrs, ctrl) { var validId = el.attr(uiValidAttrIdName); if (!validId) { validId = Math.guid(); el.attr(uiValidAttrIdName, validId); } var getRules = function () { return attrs.myValid; }; var lastOldRules; var validFn = function (value, oldRules) { var sp = '_'; var rules = getRules(); var r = valid.check(value, rules, scope, attrs.uiValidTips); if (lastOldRules && !oldRules) { oldRules = lastOldRules; } if (r.flag && oldRules) { rules = rules ? rules + ' ' + oldRules : oldRules; } if (rules) { var arrInner = rules.split(' '); var i = 0; for (; i < arrInner.length; i++) { var oneRule = arrInner[i]; if (!oneRule.trim()) { continue; } ctrl.$setValidity(attrs.ngModel + sp + oneRule, r.flag ? true : oneRule != r.rule); } } if (!r.flag) { tips.on(el, r.msg); } else { tips.off(el); } return r.flag; }; var init = function () { var rules = getRules(); if (!rules) { return; } var parsers = ctrl.$parsers; if (parsers && parsers.length > 0) { parsers.clean(); } parsers.unshift(function (value) { return validFn(value) ? value : undefined; }); }; scope.$watch(attrs.ngModel, function (newVal, oldVal) { if (newVal === oldVal) { return; } if (ctrl.$modelValue != undefined && (ctrl.$invalid || el.hasClass('ng-invalid'))) { validFn(ctrl.$modelValue); } }); scope.$watch(getRules, function (newRules, oldRules) { init(); lastOldRules = oldRules; if (ctrl.$modelValue === undefined || ctrl.$modelValue === null) { var needValid = false; el.hasClass('ng-invalid'); var isValNaN = ctrl.$viewValue !== ctrl.$viewValue; if (ctrl.$invalid || (ctrl.$viewValue !== undefined && !isValNaN)) { needValid = true; } if (needValid) { ctrl.$setViewValue(ctrl.$viewValue); } } else { if (!ctrl.$dirty && attrs.dirtyCheck) { console.log('----'); } else { validFn(ctrl.$modelValue, oldRules); } } }); } } }]);通过 监听 attrs.ngModel，验证规则 rules ，ctrl.$parser 来实现 输入框内容改变的响应。
一旦使用此directive，则动态为当前输入框添加ID，以便在 验证通过后，改变输入框的验证背景信息。
（4）验证逻辑处理 uiValidFactory
app.factory('uiValidFactory', ['$parse', 'uiTipsFactory', function ($parse, tips) { return { check: function (val, rules, $scope, defaultTips, extendParam) { if (!rules) { return { flag: true }; } var rulesArr = rules.split(' '), isBlank = val === null || val === undefined || val === '' || ('' + val === ''); //如果不是必填项 且没有输入值 则清除提示框 if ($.inArray('r', rulesArr) === -1 && isBlank) { return { flag: true } } var i = 0, len = rulesArr.length; for (; i < len; i++) { var rule = rulesArr[i]; if (!rule) { continue; } var flag = true; if ('r' === rule) { //如果是必填项，有值 返回true flag = !isBlank; } else if (rule.contains(':')) { //如果校验规则是 fn:ctrl.certCheck flag = this.checkRule(val, rule.split(/:/), $scope, extendParam); } else { //校验 规则是 int 用正则匹配 数字 邮箱 长度 var pat = this.pats[rule]; if (pat instanceof RegExp) { if (angular.isString(val)) { flag = this.mat(val, pat); } } else if (angular.isFunction(pat)) { flag = pat(val); } else { flag = false; } } //这是干什么的呢 if (angular.isString(flag)) { return { flag: false, msg: flag, rule: rule } } if (flag === false) { var msg = this.getMsg(rule, defaultTips) || this.getMsg('tips.valid'); console.log(msg); return { flag: false, msg: msg, rule: rule } } } return { flag: true } }, checkRule: function (val, ruleArr, $scope, extendParam) { //ruleArr fn:certCheck var rule = ruleArr[0]; if (rule === 'fn') { fnName = ruleArr[1];//指定被调函数的名字 certCheck var fn = $parse(fnName)($scope); if (!fn) { return true; } return fn.call($scope, val, extendParam); } else { return true; } }, checkValidForm: function (formName) { //只检查必填项 //使用属性筛选器 获得里面所有的元素 var formContext = $('form[name="{0}"],[ng-form="{0}"],[data-ng-form="{0}"]'.format(formName)), validList = formContext.find('[my-valid]');//validList 不是数组，是伪数组 if (!validList.length) { return; } var that = this, validFlags = []; validList.each(function () { var ele = $(this), val = ele.val(), ruleStr = ele.attr('my-valid'); if (!ruleStr) { return true; } if (angular.isString(val)) { val = val.trim(); } var validRules = ruleStr.split(' '); if ($.inArray('r', validRules) != -1 && !val) { var modelValue = ele.attr('ng-model') || ele.attr('data-ng-model'); validFlags.push(modelValue); tips.on(ele, that.getMsg('r')); } } ); return validFlags; }, mat: function (val, pat) { if (!pat) { return; } return pat.test(val); } , getMsg: function (rule, tips) { tips = tips || ''; //可以在界面上直接写 tips if (tips && tips.contains(':')) { return tips; } var msg = this.msgs[rule]; if (msg) { var params0 = tips.contains(':') ? tips.split(/:/)[0] : ''; var params1 = ''; if (rule.startsWith('min') || rule.startsWith('max')) { var ruleArr = rule.split(/:/); params1 = ruleArr[ruleArr.length - 1]; } return msg.format(params0, params1); } else { } } , regPat: function (code, pat, msg) { if (this.pat[code]) { return; } this.pats[code] = pat; this.msgs[code] = msg; } , msgs: { 'r': '必填', 'int': '{0}必须为整数' } , pats: { 'int': /^[/-/+]?([0-9]+)$/ } } } ]) ;通过获取输入框 ele.myValid 验证规则，
1、如果是必填，则返回 标红此输入框，鼠标移上，则显示 验证信息 “必填””。
2、如果是整数、浮点型等验证，则通过 正则表达式进行验证。
3、如果是最大（max）、最小(min)，则自定义逻辑。
4、如果是 fn 验证，则根据 对应controller中函数进行验证。
5、用户点击提交按钮，则 判断是否必填项，验证不通过，对应元素背景标红。
（5） 验证不通过，提示Factory---uiTipsFactory
app.factory('uiTipsFactory', function () { return { filterClass: function (ele, invalid) { if (invalid) { //如果验证不通过 ele.removeClass('ng-valid').removeClass('ng-pristine').addClass('ng-invalid').addClass('ng-dirty'); } else { ele.removeClass('ng-invalid').addClass('ng-valid'); } }, on: function (ele, msg) { var lastTip = ele.data('last-tip'); if (lastTip && lastTip === msg) { return; } ele.data('last-tip', msg); this.filterClass(ele, true); var offset = ele.offset(); if (!offset.top && !offset.left && ele.is('hidden')) { offset = ele.show().offset(); } var id = ele.attr('ui-valid-id'); if (!id) { id = Math.guid(); ele.attr('ui-valid-id', id); } if (id.contains('.')) { id = id.replace(//./g, '_'); } var top = offset.top, left = offset.left; var getTips = function () { var _tip = $('#vtip_' + id); if (_tip.length) { _tip.html(msg).css({ 'display': 'none', 'top': top + 'px', 'left': left + ele.width() + 10 + 'px' }); } else { var html = '<div id="vtip_' + id + '" class="vtip qtip qtip-rounded box-shadow-tips">' + '<div class="qtip-content">' + msg + '</div>'; $(html).css({ 'display': 'none', 'position': 'absolute', 'top': top + 'px', 'left': left + ele.width() + 10 + 'px' }).appendTo($('body')); } }; var bindTipsShow = function () { getTips(); ele.unbind('mouseenter mouseleave').bind('mouseenter', function () { var _tip = $('#vtip_' + id); if (_tip.is(':hidden')) { _tip.show(); } }).bind('mouseleave', function () { $('#vtip_' + id).hide(); }); }; bindTipsShow(); }, off: function (ele) { ele.data('last-tip', ''); this.filterClass(ele); var id = ele.attr('ui-valid-id'); if (!id) { return; } if (id.contains('.')) { id = id.replace(//./g, '_'); } $('#vtip_' + id).remove(); ele.unbind('mouseenter mouseleave'); } } });1、验证不通过，增加背景色，元素css处理如下
ele.removeClass('ng-valid').removeClass('ng-pristine').addClass('ng-invalid').addClass('ng-dirty');验证通过，CSS处理如下
ele.removeClass('ng-invalid').addClass('ng-valid');
2、背景提示语，则是在body上增加一个div层。
(6)其他相关代码
var app = angular.module('myApp', []); app.controller('testCtrl', ['$scope', 'uiValidFactory', function ($scope, uiValidFactory) { $scope.certCheck = function (val) { if (val > 32) { return "数字太大了"; } return true; }; $scope.submit = function () { if (!uiValidFactory.checkValidForm($scope.baseInfoForm.$name)) { } }; }] ); Math.guid = function () { var a = "", b = 1; for (; b <= 32; b++) { var c = Math.floor(Math.random() * 16).toString(16); a += c; if (b === 8 || b === 12 || b === 16 || b === 20) { a += '-'; } } return a; }; String.prototype.contains = String.prototype.contains || function (a) { return this.indexOf(a) != -1; }; String.prototype.format = String.prototype.format || function () { var a = Array.prototype.slice.call(arguments); return this.replace(//{(/d+)}/g, function (c, b) { return a[b]; }) };整个代码如下：
<!DOCTYPE html><html><head lang="en"> <meta charset="UTF-8"> <title></title> <script src="jquery-1.11.1.js"></script> <script src="angular.js"></script> <style type="text/css"> input.ng-invalid, select.ng-invalid { background-color: #ee82ee !important; border: 1px solid #CCC; } .qtip { position: absolute; max-width: 260px; display: none; min-width: 50px; font-size: 10.5px; line-height: 12px; direction: ltr; } .qtip-content { position: relative; padding: 5px 9px; overflow: hidden; text-align: left; word-wrap: break-word; } .qtip-rounded, .qtip-tipsy { -moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px; } .qtipmodal-ie6fix { position: absolute !important; } .box-shadow-tips { background-color: #F63; border-color: #F5A88F; color: white; -moz-box-shadow: 2px 2px 2px #969696; -webkit-box-shaow: 2px 2px 2px #969696; box-shadow: 2px 2px 2px #969696; } </style></head><body ng-app="myApp"><form name="baseInfoForm"> <div ng-controller="testCtrl"> <input type="text" ng-model="age" my-valid="r"><br> <input type="text" ng-model="name" my-valid="int fn:certCheck"><br> <input type="button" value="提交" ng-click="submit()"> </div></form></body><script type="text/javascript"> var app = angular.module('myApp', []); app.controller('testCtrl', ['$scope', 'uiValidFactory', function ($scope, uiValidFactory) { $scope.certCheck = function (val) { if (val > 32) { return "数字太大了"; } return true; }; $scope.submit = function () { if (!uiValidFactory.checkValidForm($scope.baseInfoForm.$name)) { } }; }] ); Math.guid = function () { var a = "", b = 1; for (; b <= 32; b++) { var c = Math.floor(Math.random() * 16).toString(16); a += c; if (b === 8 || b === 12 || b === 16 || b === 20) { a += '-'; } } return a; }; String.prototype.contains = String.prototype.contains || function (a) { return this.indexOf(a) != -1; }; String.prototype.format = String.prototype.format || function () { var a = Array.prototype.slice.call(arguments); return this.replace(//{(/d+)}/g, function (c, b) { return a[b]; }) }; app.factory('uiTipsFactory', function () { return { filterClass: function (ele, invalid) { if (invalid) { //如果验证不通过 ele.removeClass('ng-valid').removeClass('ng-pristine').addClass('ng-invalid').addClass('ng-dirty'); } else { ele.removeClass('ng-invalid').addClass('ng-valid'); } }, on: function (ele, msg) { var lastTip = ele.data('last-tip'); if (lastTip && lastTip === msg) { return; } ele.data('last-tip', msg); this.filterClass(ele, true); var offset = ele.offset(); if (!offset.top && !offset.left && ele.is('hidden')) { offset = ele.show().offset(); } var id = ele.attr('ui-valid-id'); if (!id) { id = Math.guid(); ele.attr('ui-valid-id', id); } if (id.contains('.')) { id = id.replace(//./g, '_'); } var top = offset.top, left = offset.left; var getTips = function () { var _tip = $('#vtip_' + id); if (_tip.length) { _tip.html(msg).css({ 'display': 'none', 'top': top + 'px', 'left': left + ele.width() + 10 + 'px' }); } else { var html = '<div id="vtip_' + id + '" class="vtip qtip qtip-rounded box-shadow-tips">' + '<div class="qtip-content">' + msg + '</div>'; $(html).css({ 'display': 'none', 'position': 'absolute', 'top': top + 'px', 'left': left + ele.width() + 10 + 'px' }).appendTo($('body')); } }; var bindTipsShow = function () { getTips(); ele.unbind('mouseenter mouseleave').bind('mouseenter', function () { var _tip = $('#vtip_' + id); if (_tip.is(':hidden')) { _tip.show(); } }).bind('mouseleave', function () { $('#vtip_' + id).hide(); }); }; bindTipsShow(); }, off: function (ele) { ele.data('last-tip', ''); this.filterClass(ele); var id = ele.attr('ui-valid-id'); if (!id) { return; } if (id.contains('.')) { id = id.replace(//./g, '_'); } $('#vtip_' + id).remove(); ele.unbind('mouseenter mouseleave'); } } }); app.factory('uiValidFactory', ['$parse', 'uiTipsFactory', function ($parse, tips) { return { check: function (val, rules, $scope, defaultTips, extendParam) { if (!rules) { return { flag: true }; } var rulesArr = rules.split(' '), isBlank = val === null || val === undefined || val === '' || ('' + val === ''); //如果不是必填项 且没有输入值 则清除提示框 if ($.inArray('r', rulesArr) === -1 && isBlank) { return { flag: true } } var i = 0, len = rulesArr.length; for (; i < len; i++) { var rule = rulesArr[i]; if (!rule) { continue; } var flag = true; if ('r' === rule) { //如果是必填项，有值 返回true flag = !isBlank; } else if (rule.contains(':')) { //如果校验规则是 fn:ctrl.certCheck flag = this.checkRule(val, rule.split(/:/), $scope, extendParam); } else { //校验 规则是 int 用正则匹配 数字 邮箱 长度 var pat = this.pats[rule]; if (pat instanceof RegExp) { if (angular.isString(val)) { flag = this.mat(val, pat); } } else if (angular.isFunction(pat)) { flag = pat(val); } else { flag = false; } } //这是干什么的呢 if (angular.isString(flag)) { return { flag: false, msg: flag, rule: rule } } if (flag === false) { var msg = this.getMsg(rule, defaultTips) || this.getMsg('tips.valid'); console.log(msg); return { flag: false, msg: msg, rule: rule } } } return { flag: true } }, checkRule: function (val, ruleArr, $scope, extendParam) { //ruleArr fn:certCheck var rule = ruleArr[0]; if (rule === 'fn') { fnName = ruleArr[1];//指定被调函数的名字 certCheck var fn = $parse(fnName)($scope); if (!fn) { return true; } return fn.call($scope, val, extendParam); } else { return true; } }, checkValidForm: function (formName) { //只检查必填项 //使用属性筛选器 获得里面所有的元素 var formContext = $('form[name="{0}"],[ng-form="{0}"],[data-ng-form="{0}"]'.format(formName)), validList = formContext.find('[my-valid]');//validList 不是数组，是伪数组 if (!validList.length) { return; } var that = this, validFlags = []; validList.each(function () { var ele = $(this), val = ele.val(), ruleStr = ele.attr('my-valid'); if (!ruleStr) { return true; } if (angular.isString(val)) { val = val.trim(); } var validRules = ruleStr.split(' '); if ($.inArray('r', validRules) != -1 && !val) { var modelValue = ele.attr('ng-model') || ele.attr('data-ng-model'); validFlags.push(modelValue); tips.on(ele, that.getMsg('r')); } } ); return validFlags; }, mat: function (val, pat) { if (!pat) { return; } return pat.test(val); } , getMsg: function (rule, tips) { tips = tips || ''; //可以在界面上直接写 tips if (tips && tips.contains(':')) { return tips; } var msg = this.msgs[rule]; if (msg) { var params0 = tips.contains(':') ? tips.split(/:/)[0] : ''; var params1 = ''; if (rule.startsWith('min') || rule.startsWith('max')) { var ruleArr = rule.split(/:/); params1 = ruleArr[ruleArr.length - 1]; } return msg.format(params0, params1); } else { } } , regPat: function (code, pat, msg) { if (this.pat[code]) { return; } this.pats[code] = pat; this.msgs[code] = msg; } , msgs: { 'r': '必填', 'int': '{0}必须为整数' } , pats: { 'int': /^[/-/+]?([0-9]+)$/ } } } ]) ; app.directive('myValid', ['$parse', 'uiTipsFactory', 'uiValidFactory', function ($parse, tips, valid) { var uiValidAttrIdName = 'ui-valid-id'; return { restrict: 'A', require: 'ngModel', link: function (scope, el, attrs, ctrl) { var validId = el.attr(uiValidAttrIdName); if (!validId) { validId = Math.guid(); el.attr(uiValidAttrIdName, validId); } var getRules = function () { return attrs.myValid; }; var lastOldRules; var validFn = function (value, oldRules) { var sp = '_'; var rules = getRules(); var r = valid.check(value, rules, scope, attrs.uiValidTips); if (lastOldRules && !oldRules) { oldRules = lastOldRules; } if (r.flag && oldRules) { rules = rules ? rules + ' ' + oldRules : oldRules; } if (rules) { var arrInner = rules.split(' '); var i = 0; for (; i < arrInner.length; i++) { var oneRule = arrInner[i]; if (!oneRule.trim()) { continue; } ctrl.$setValidity(attrs.ngModel + sp + oneRule, r.flag ? true : oneRule != r.rule); } } if (!r.flag) { tips.on(el, r.msg); } else { tips.off(el); } return r.flag; }; var init = function () { var rules = getRules(); if (!rules) { return; } var parsers = ctrl.$parsers; if (parsers && parsers.length > 0) { parsers.clean(); } parsers.unshift(function (value) { return validFn(value) ? value : undefined; }); }; scope.$watch(attrs.ngModel, function (newVal, oldVal) { if (newVal === oldVal) { return; } if (ctrl.$modelValue != undefined && (ctrl.$invalid || el.hasClass('ng-invalid'))) { validFn(ctrl.$modelValue); } }); scope.$watch(getRules, function (newRules, oldRules) { init(); lastOldRules = oldRules; if (ctrl.$modelValue === undefined || ctrl.$modelValue === null) { var needValid = false; el.hasClass('ng-invalid'); var isValNaN = ctrl.$viewValue !== ctrl.$viewValue; if (ctrl.$invalid || (ctrl.$viewValue !== undefined && !isValNaN)) { needValid = true; } if (needValid) { ctrl.$setViewValue(ctrl.$viewValue); } } else { if (!ctrl.$dirty && attrs.dirtyCheck) { console.log('----'); } else { validFn(ctrl.$modelValue, oldRules); } } }); } } }]);</script></html>新闻热点
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