Java jsp表单和servlet以及Angular.js验证
我尝试做一个Java jsp表单和servlet以及Angular.js验证,java,javascript,angularjs,jsp,servlets,Java,Javascript,Angularjs,Jsp,Servlets,我尝试做一个jsp表单,在Angular.js验证之后,该表单将吸引servlet 我有3个主要文件- default.jsp <!DOCTYPE html> <html> <head> <!-- CSS --> <link rel="stylesheet" href="css/bootstrap.min.css" /> <!-- JS --> <script src="js/angular.js"></
jsp
表单,在Angular.js
验证之后,该表单将吸引servlet
我有3个主要文件-
default.jsp
<!DOCTYPE html>
<html>
<head>
<!-- CSS -->
<link rel="stylesheet" href="css/bootstrap.min.css" />
<!-- JS -->
<script src="js/angular.js"></script>
<script src="js/app.js"></script>
</head>
<body ng-app="validationApp" ng-controller="mainController">
<div class="container">
<!-- =================================================================== -->
<!-- FORM ============================================================== -->
<!-- =================================================================== -->
<!-- pass in the variable if our form is valid or invalid -->
<form action="AfterFormServlet" method="POST" name="userForm"
ng-submit="submitForm(userForm.$valid)" novalidate>
<!-- FIRST NAME -->
<div class="form-group"
ng-class="{ 'has-error' : userForm.name.$invalid && !userForm.name.$pristine }">
<label>First name</label> <input type="text" name="name"
class="form-control" ng-model="user.name"
ng-pattern="/^[a-z ,.'-]+$/i" required>
<p ng-show="userForm.name.$invalid && !userForm.name.$pristine"
class="help-block">Enter a valid last first name.</p>
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
</body>
</html>
app.js
// create angular app
var validationApp = angular.module('validationApp', []);
// create angular controller
validationApp.controller('mainController', function($scope) {
// function to submit the form after all validation has occurred
$scope.submitForm = function(isValid) {
// check to make sure the form is completely valid
if (isValid) {
alert('Thanks, your order was Sent');
}
else {
alert('Invalid form');
}
};
});
运行它之后,我进入表单,填写所需字段,单击submit
,它进入servlet,即使验证失败
如何让它工作
更新:
根据@ug_uu建议-
<form action="" active="AfterFormServlet" method="POST" name="userForm"
ng-submit="submitForm(userForm.$valid);" novalidate>
使验证生效,但即使验证失败,它也会进入
servlet
您的表单没有action
属性,这意味着当使用ng submit
指令时,它将防止导致表单不提交的默认行为。关于它的信息在这里
修复:
将action=”“
属性添加到表单标签
<form active="AfterFormServlet" action="" method="POST" name="userForm"
ng-submit="submitForm(userForm.$valid)" novalidate>
以及您的html:
名字
输入有效的姓氏和姓氏
提交
或者,您可以使用angular中的
$http
提供程序通过AJAX提交表单,但它不会刷新页面。我的建议:将表单操作更改为action=“”
,并使用ng submit返回true
。还有一个快速的问题,警报显示了吗?@ug\ux:你能解释一下怎么写吗?是的,警报将显示。编辑后,仍然不会执行验证。
<form action="AfterFormServlet" method="POST" name="userForm"
ng-submit="submitForm(userForm.$valid);" novalidate>
<form active="AfterFormServlet" action="" method="POST" name="userForm"
ng-submit="submitForm(userForm.$valid)" novalidate>
$scope.submitForm = function(isValid) {
// check to make sure the form is completely valid
if (isValid) {
alert('Thanks, your order was Sent');
$scope.userForm.submit();
}
else {
alert('Invalid form');
}
};