欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

AngularJS自动表单验证

程序员文章站 2023-09-06 09:43:39
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-va...

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 class="navbar navbar-inverse navbar-fixed-top">
 <div class="container">
 <div class="navbar-header">
  <a href="/" class="navbar-brand">form validating auto</a>
 </div>
 </div>
</nav>

<div class="container main-content" ng-controller="myctrl1">
 <!--novalidate让表单不要使用html验证-->
 <!--theform变成scope的一个字段-->
 <form ng-submit="onsubmit()" novalidate="novalidate">
 <div class="form-group">
  <label for="name" class="control-label">name</label>
  <input type="text" class="form-control" id="name" ng-model="formmodel.name" required="required"/>
 </div>

 <div class="form-group">
  <label for="email" class="control-label">email</label>
  <input type="email" class="form-control" id="email" ng-model="formmodel.email" required="required"/>

 </div>

 <div class="form-group">
  <label for="username" class="control-label">username</label>
  <input type="text"
    class="form-control"
    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 class="form-group">
  <label for="age" class="control-label">age</label>
  <input type="number"
    class="form-control"
    id="age"
    ng-model="formmodel.age"
    required="required"
    min="18"
    max="65"
    ng-min-err-type="tooyoung"
    ng-max-err-type="tooold"
  />
 </div>

 <div class="form-group">
  <label for="sex" class="control-label">sex</label>
  <select name="sex" id="sex" class="form-control" ng-model="formmodel.sex" required="required">
  <option value="">please choose</option>
  <option value="male">mail</option>
  <option value="femail">femail</option>
  </select>
 </div>

 <div class="form-group">
  <label for="password" class="control-label">password</label>
  <input type="text" class="form-control" id="password" ng-model="formmodel.password" required="required" ng-minlength="6"/>
 </div>

 <div class="form-group">
  <!--<button class="btn btn-primary" ng-click="onsubmit()">register</button>-->
  <button class="btn btn-primary"
    ladda = "submitting"
    data-style="expand-right"
    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 class="form-group">
 <!--<button class="btn btn-primary" ng-click="onsubmit()">register</button>-->
 <button class="btn btn-primary"
   ladda = "submitting"
   data-style="expand-right"
   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-style="expand-right"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 class="form-group">
 <label for="age" class="control-label">age</label>
 <input type="number"
   class="form-control"
   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。