angularjs的表单验证
废话：angular的热度在减小，但是老项目依旧是angular的，就是不能丢，得会
干活直接上代码 <!DOCTYPE html>
<html>
<head>
<!-- CSS -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" />
<style>
body { padding-top:30px; }
button {
background-color: #4CAF50;
border: none;
color: white;
padding: 10px 20px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 4px 2px;
cursor: pointer;
border-radius: 5px;
}
button:hover {
background-color: rgb(113, 173, 115);
}
button:focus {
background: rgb(156, 207, 156);
outline: none;
}
button[disabled] {
background: rgb(116, 119, 116)
}
</style>
<!-- JS -->
<script src="https://code.angularjs.org/1.4.0-rc.1/angular.js"></script>
<script>
var validationApp = angular.module('validationApp', []);
validationApp.controller('mainController', function($scope) {
$scope.submitForm = function(isValid) {
if (isValid) {
$('URL'，data，function(result){
....
})
return false
}
};
});
</script>
</head>
<body ng-app="validationApp" ng-controller="mainController">
<div class="container">
<div class="page-header"><h1>AngularJS Form Validation</h1></div>
<form name="userForm" novalidate>
<!-- NAME -->
<div class="form-group" ng-class="{ 'has-error' : userForm.name.$invalid}">
<label>Name*</label>
<input type="text" name="name" class="form-control" ng-model="Sname" ng-pattern="/ab{2,}/" required>
<p ng-show="userForm.name.$invalid && !userForm.name.$pristine" class="help-block">要的是abb</p>
</div>
<!-- USERNAME -->
<div class="form-group" ng-class="{ 'has-error' : userForm.username.$invalid && !userForm.username.$pristine }">
<label>Username</label>
<input type="text" name="username" class="form-control" ng-model="Susername" ng-minlength="3" ng-maxlength="8" required>
<!-- <input type="text" name="username" class="form-control" ng-model="user.username" ng-pattern="/^[a-zA-Z0-9]|[._]/" required> -->
<p ng-show="userForm.username.$error.minlength" class="help-block">Username is too short.</p>
<p ng-show="userForm.username.$error.maxlength" class="help-block">Username is too long.</p>
<!-- <p ng-show="userForm.username.$error.pattern" class="help-block">数字，字母 或者 ._ </p> -->
</div>
<!-- EMAIL -->
<div class="form-group" ng-class="{ 'has-error' : userForm.email.$invalid && !userForm.email.$pristine }">
<label>Email</label>
<input type="email" name="email" class="form-control" ng-model="Demail" required>
<p ng-show="userForm.email.$invalid && !userForm.email.$pristine" class="help-block">Enter a valid email.</p>
</div>
<button type="button" class="btn btn-primary" ng-disabled="userForm.$invalid" ng-click="submitForm(userForm.$valid)">Submit</button>
</form>
</div>
</body>
</html>
注意：这里是表单提交 如果上述红色部分不写 或者是 type=“submit“ 在提交页面的时候 ，我们需要的ajax的效果没办法展示，会直接刷新。
处理用 button的 类型，也可以在 ajax 提交的 代码中最后 return false
对于angularjs 的解释：
ng 指令绑定表单，上面的蓝色部分都是必不可少的;
novalidate ,禁止使用表单的默认提交，采用我们ajax的提交方式
userForm 必需的表单name 后面要绑定到这个form name 属性
ng-pattern="/ab{2,}/" 可以单独为 input 的表单做正则验证，如果不正确就会触发下面的ng-show
ng-show="userForm.name.$invalid && !userForm.name.$pristine" 错误信息的展示条件
<input type="text" name="name" class="form-control" ng-model="Sname" ng-pattern="/ab{2,}/" required>
<p ng-show="userForm.name.$invalid && !userForm.name.$pristine" class="help-block">要的是abb</p> ng 是通过name 属性关联起来的，input 里面的name 和对应表单里面的格式验证 name 要一致；
name="name" 必须的input 的那么属性
ng-model="Sname" 必须要的model 不然绑定不到 ，可以不和name的名字一致
所有的input 都有required的属性 表示表单必填
ng-disabled="userForm.$invalid" 表示按钮的是否点击状态 取决于表单是否都已经填写
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> button { background: green; width: 100px; height: 20px; } button[disabled] { background: rgb(116, 119, 116) } </style> </head> <body ng-app="validationApp" ng-controller="mainController"> <script src="https://cdn.bootcss.com/jquery/1.12.2/jquery.js"></script> <script src="https://cdn.bootcss.com/angular.js/1.5.5/angular.js"></script> <script> var validationApp = angular.module('validationApp', []); validationApp.controller('mainController', function($scope) { console.log(regForm.phone.$pristine) $scope.submitForm = function(isValid) { console.log(111); $scope.regForm.already = true; if (isValid) { console.log($scope.rphone) console.log($scope.rsmg) console.log($scope.rpwd) return false } }; }); </script> <div> <h3>注册</h3> <form name="regForm" novalidate> <div> <label>正确的手机号</label> <input type="text" name="phone" ng-model="rphone" ng-pattern="/[0-9]{11}/" required /> <p ng-show="regForm.phone.$invalid && !regForm.phone.$pristine">请输入正确的手机号</p> <p ng-show="regForm.already">手机已经注册</p> </div> <div> <label>请输入4手机code</label> <input type="text" name="smg" ng-model="rsmg" ng-pattern="/[0-9]{4}/" required /> <p ng-show="regForm.smg.$invalid && !regForm.smg.$pristine">请输入4手机code</p> </div> <div> <label>11pwd</label> <input type="text" name="pwd" ng-model="rpwd" ng-pattern="/[0-9]{6,11}/" required /> <p ng-show="regForm.pwd.$invalid && !regForm.pwd.$pristine">请输入6-11pwd</p> </div> <button type="button" ng-disabled="regForm.$invalid" ng-click="submitForm(regForm.$valid)">Submit</button> </form> </div> </body> </html>