AngularJS的另外一种表单验证方式是自动验证，即通过directive来实现，除了AngularJS自带的directive,还需要用到angular-auto-validate这个第三方module。
有关angular-auto-validate：
安装：npm i angular-auto-validate 引用：<script src="../node_modules/angular-auto-validate/dist/jcs-auto-validate.min.js"></script> module依赖：var myApp = angular.module("app", ["jcs-autoValidate"]);
为了实现错误信息本地化，还需要angular-localize这个第三方module：
安装：npm install angular-localize --save module依赖：var myApp = angular.module("app", ["localize"]); 引用：
<script src="../node_modules/angular-sanitize/angular-sanitize.min.js"></script> <script src="../node_modules/angular-localize/angular-localize.min.js"></script>
此外，当点击提交表单按钮，需要禁用按钮并显示一种等待效果，需要用到angular-ladda这个第三方module:
安装：bower install angular-ladda --save module依赖：var myApp = angular.module("app", ["angular-ladda"]); 引用：
<link rel="stylesheet" href="../bower_components/ladda/dist/ladda-themeless.min.css"/> <script src="../bower_components/ladda/dist/spin.min.js"></script> <script src="../bower_components/ladda/dist/ladda.min.js"></script> <script src="../bower_components/angular-ladda/dist/angular-ladda.min.js"></script>
页面如下：
<html> <head> <meta charset="gb2312"> <title></title> <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.min.css"/> <link rel="stylesheet" href="../bower_components/ladda/dist/ladda-themeless.min.css"/> <link rel="stylesheet" href="../css/main.css"/> </head> <body> <nav> <div> <div> <a href="/">Form Validating Auto</a> </div> </div> </nav> <div ng-controller="myCtrl1"> <> <> <form ng-submit="onSubmit()" novalidate="novalidate"> <div> <label for="name">Name</label> <input type="text" id="name" ng-model="formModel.name" required="required"/> </div> <div> <label for="email">Email</label> <input type="email" id="email" ng-model="formModel.email" required="required"/> </div> <div> <label for="username">Username</label> <input type="text" id="username" ng-model="formModel.username" required="required" ng-pattern="/^[A-Za-z0-9_]{1,32}$/" ng-minlength="7" ng-pattern-err-type="badUsername" /> </div> <div> <label for="age">Age</label> <input type="number" id="age" ng-model="formModel.age" required="required" min="18" max="65" ng-min-err-type="tooYoung" ng-max-err-type="tooOld" /> </div> <div> <label for="sex">Sex</label> <select name="sex" id="sex" ng-model="formModel.sex" required="required"> <option value="">Please choose</option> <option value="male">Mail</option> <option value="femail">Femail</option> </select> </div> <div> <label for="password">Password</label> <input type="text" id="password" ng-model="formModel.password" required="required" ng-minlength="6"/> </div> <div> <> <button ladda = "submitting" data- type="submit"> <span ng-show="submitting">正在注册...</span> <span ng-show="!submitting">注册</span> </button> </div> <pre> {{formModel | json}} </pre> </form> </div> <script src="../node_modules/angular/angular.min.js"></script> <script src="form_validation_auto.js"></script> <script src="../node_modules/angular-auto-validate/dist/jcs-auto-validate.min.js"></script> <script src="../node_modules/angular-sanitize/angular-sanitize.min.js"></script> <script src="../node_modules/angular-localize/angular-localize.min.js"></script> <script src="../bower_components/ladda/dist/spin.min.js"></script> <script src="../bower_components/ladda/dist/ladda.min.js"></script> <script src="../bower_components/angular-ladda/dist/angular-ladda.min.js"></script> </body> </html>
先看提交按钮：
<div> <> <button ladda = "submitting" data- type="submit"> <span ng-show="submitting">正在注册...</span> <span ng-show="!submitting">注册</span> </button> </div> ladda属性值为bool值，true表示显示动态等待效果，false不显示动态等待效果，这里的submitting是scope中的一个属性 data-表示在按钮的右侧显示动态等待效果
再拿表单中的Age字段来说：
<div> <label for="age">Age</label> <input type="number" id="age" ng-model="formModel.age" required="required" min="18" max="65" ng-min-err-type="tooYoung" ng-max-err-type="tooOld" /> </div>
其中,min, max为AgularJS的directive,而ng-min-err-type是angular-auto-validate的directive。这里遵循的惯例是ng-AngularJS表单验证的directive名称-err-type，而tooYoung和tooOld的作用是什么，又是在哪里用上了呢？
是在module层面用上了，定义在了form_validation_auto.js文件中。
var myApp1 = angular.module('myApp1',['jcs-autoValidate','localize','angular-ladda']); myApp1.run(function(defaultErrorMessageResolver){ defaultErrorMessageResolver.getErrorMessages().then(function(errorMessages){ errorMessages['tooYoung'] = '年龄必须小于{0}'; errorMessages['tooOld'] = '年龄不能大于{0}'; errorMessages['badUsername'] = '用户名只能包含数字、字母或下划线'; }); }); myApp1.controller('myCtrl1', function($scope, $http){ $scope.formModel = {}; $scope.submitting = false; $scope.onSubmit = function(){ $scope.submitting = true; console.log('已提交'); console.log($scope.formModel); $http.post('url',$scope.formModel) .success(function(data){ console.log(':)'); $scope.submitting = false; }) .error(function(data){ console.log(':('); $scope.submitting = false; }); }; });
以上就是本文的全部内容，希望对AngularJS手动表单验证能够熟练操作。