时间：2020-10-23 16:04:25 | 栏目：AngularJS | 点击：次
废话不多说了，具体代码如下所示：
<!DOCTYPE html>
<html ng-app="angularFormCheckModule">
<head>
<meta charset="UTF-8">
<title>angular表单校验</title>
<link rel="stylesheet" href="../css/bootstrap.min.css" rel="external nofollow" />
<style>
span{
color: red;
}
</style>
</head>
<body ng-controller="angularFormCheckCtrl">
<!--使用angular校验，每一个校验的项都必须用ng-model，不然无法执行在脏检查，就无法校验-->
<form name="angularForm" novalidate method="post">
<table class="table table-bordered">
<tr>
<td>用户名</td>
<td>
<input type="number" required="required" ng-model="user.userName" name="userName" ng-minlength="6"/>
<!--angularForm.userName.$dirty检查是否是第一次输入！网上有很多种方法校验是否是第一次输入-->
<span class="warning" ng-show="angularForm.userName.$dirty && angularForm.userName.$error.required">*</span>
<span class="warning" ng-show="angularForm.userName.$error.number">只能输入数字</span>
<span class="warning" ng-show="angularForm.userName.$error.minlength">最少为6位数</span>
</td>
</tr>
<tr>
<td>密码</td>
<td>
<!--这里的id,一定要等于compare-pwd的值，因为指令里面是根据Id取值的-->
<input type="password" required="required" ng-minlength="6" name="pwd" ng-model="user.password" id="pwd"/>
<!--angularForm.pwd.$pristine首次输入，不太清楚的就自己运行，去掉条件一个一个的试！-->
<span class="warning" ng-show="!angularForm.pwd.$pristine && angularForm.pwd.$error.required">*</span>
<span class="warning" ng-show="angularForm.pwd.$error.minlength">最少为6位数</span>
</td>
</tr>
<tr>
<td>确认密码</td>
<td>
<!--这里compare-pwd的值，要等于被比较的对象的name属性值，即第一个密码框的name值-->
<input type="password" required="required" name="pwd2" compare-pwd="pwd" ng-model="pwd2"/>
<span class="warning" ng-show="angularForm.pwd2.$error.required">*</span>
<!--注意这里的pwdmatch,是指令里面设置的-->
<span class="warning" ng-show="angularForm.pwd2.$error.pwdmatch">X</span>
<span class="warning" ng-show="angularForm.pwd2.$valid" style="color: green;">OK</span>
<!--
其实这种事最简单的校验方式，不用写指令！！！
<span ng-show="user.password !=pwd2">两次密码输入不一致</span>
-->
</td>
</tr>
<tr>
<td>手机</td>
<td>
<!--pattern正则表达式校验输入内容-->
<input type="number" required="required" name="phone" ng-model="user.phone" ng-pattern="/^1[3|4|5|7|8]\d{9}$/">
<span class="warning" ng-show="angularForm.phone.$error.required">*</span>
<span class="warning" ng-show="angularForm.phone.$error.number">只能输入数字</span>
<span class="warning" ng-show="angularForm.phone.$error.pattern">手机格式不正确</span>
</td>
</tr>
<tr>
<td>邮箱</td>
<td>
<input type="email" required="required" ng-model="user.email" name="email"/>
<span class="warning" ng-show="angularForm.email.$error.required">*</span>
<span class="warning" ng-show="angularForm.email.$error.email">邮箱格式不正确</span>
</td>
</tr>
<tr>
<td>URL</td>
<td>
<input type="url" required="required" ng-model="user.url" name="url"/>
<span class="warning" ng-show="angularForm.url.$error.required">*</span>
<span class="warning" ng-show="angularForm.url.$error.url">URL格式不正确</span>
</td>
</tr>
<tr>
<td>(注:*为必填)</td>
<td>
<input type="submit" value="提交" ng-disabled="!angularForm.$valid" class="btn btn-success"/>
</td>
</tr>
</table>
</form>
</body>
<script type="text/javascript" src="../js/jquery.min.js" ></script>
<script type="text/javascript" src="../js/angular-1.2.22.js" ></script>
<script type="text/javascript" src="../js/angularFormCheck.js" ></script>
</html>
js代码（除了指令意外，没什么可用的，写出来只是为了，说一下mvc模式而已！）
var app = angular.module("angularFormCheckModule",[]);
/*这里使用MVC的模式（用来举例说明MVC而已）*/
app.controller("angularFormCheckCtrl",function($scope,angularFormCheckFactory){//function里的参数写你在函数里需要用到的
$scope.testVar = angularFormCheckFactory.getTest();//这里就能取到$scope.testVar的值为---"练习angular表单校验";
$scope.user = {};
$scope.test= "sss";
});
/*自己可以去看factory、service、providers的区别（http://www.oschina.net/translate/angularjs-factory-vs-service-vs-provider）*/
/*用 Factory 就是创建一个对象，为它添加属性，然后把这个对象返回出来。*/
app.factory('angularFormCheckFactory',function(){
//这里写自己的业务逻辑
var test = "练习angular表单校验";
var service = {};//自定义一个对象
service.getTest = function(){//给对象添加方法
return test;
}
return service;//返回自定义的service对象！！！
});
/*自定义指令--比较两个密码是否相等.angular的指令是驼峰的形式（这里是comparePwd页面就是compare-pwd）*/
app.directive('comparePwd',function(){
/*angular 自定义指令，可上网自行查找*/
return{
require : 'ngModel',
/*scope表示作用域，elem表示使用这个指令的元素对象（这里指第二个密码框），attrs。。。ctrl。。。*/
link : function(scope,elem,attrs,ctrl){
/*写自己的业务逻辑*/
//注意这样取值的话，第一密码框的Id值必须要设置且必须与第二个密码框的compare-pwd属性的值相同
var firstPwdIdObj = "#" + attrs.comparePwd;
$(elem).add(firstPwdIdObj).on('keyup',function(){
/*手动执行脏检查*/
scope.$apply(function(){
//$(firstPwdIdObj).val()表示第一个密码框的值。elem.val()表示第二个密码框的值
var flag = elem.val() === $(firstPwdIdObj).val();
//alert(flag+",--"+elem.val()+",--"+$(firstPwdIdObj).val());
ctrl.$setValidity("pwdmatch",flag);//flag,表示是否相等。pwdmatch用于$error时的标识符，注意看页面，$setValidity是require中ngModel的方法！
});
});
}
}
});
下面看一段代码关于AngularJs获取焦点与失去焦点时的表单验证
<!DOCTYPE html>
<html ng-app="formExample">
<head>
<meta charset="UTF-8">
<title></title>
<script src="../js/angular.js"></script>
<script>
angular.module('formExample', [])
.controller('FormController', ['$scope', function($scope)
{
$scope.userType = 'guest';
$scope.change = false;
}]);
</script>
</head>
<body>
<form name="myForm" ng-controller="FormController">
userType: <input name="input" ng-model="userType" ng-blur="change=true" ng-focus="change=false" required>
<span class="error" ng-show="myForm.input.$error.required && change">必填项</span><br>
</form>
</body>
</html>