我正在尝试使用AngularJS, php和javascript构建一个登录页面。我有一个php页面,其中包含JSON对象,包括用户名和密码组合。数据被访问并存储在$scope.names变量中。我想要的是登录函数能够访问这个数组,并确定登录表单中输入的登录信息是否与json文件中找到的任何组合相匹配。
<!DOCTYPE html>
<html >
<style>
table, th , td {
border: 1px solid grey;
border-collapse: collapse;
padding: 5px;
}
table tr:nth-child(odd) {
background-color: #f1f1f1;
}
table tr:nth-child(even) {
background-color: #ffffff;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<body>
<button type = "button" class = "btn btn-primary" data-toggle = "modal" data-target = "#login">Log In</button>
<br/>
<br/>
<div class = "container">
<h2>TTP Banking Portal</h2>
<ul class = "nav nav-tabs">
<li class = "active"><a data-toggle = "tab" href = "#home">Home</a></li>
<li><a data-toggle = "tab" href = "#transfer">Transfer Funds</a></li>
<li><a data-toggle = "tab" href = "#reports">Generate Reports</a></li>
<li><a data-toggle = "tab" href = "#chat">Chat with An Agent</a></li>
<li><a data-toggle = "tab" href = "#email">Email your Bank</a></li>
</ul>
<div class = "tab-content">
<div id = "home" class = "tab-pane fade in active">
<div ng-app="myApp" ng-controller="clientsCtrl" id = "login" class = "modal fade">
<div class = "modal-dialog">
<div class = "modal-content">
<div class = "modal-header">
<h3>Enter Login Information Below</h3>
</div>
<div class = "modal-body">
<form>
<input type = "input" name = "user" placeholder = "Username" id = "Username" required>
<input type = "input" name = "pass" placeholder = "Password" id = "Password" required>
<button id = "loginbtn" type = "button" class = "btn btn-success" onclick = "login()">Log In</button>
</form>
</div>
<div class = "modal-footer">
<button type = "button" class = "btn-warning" data-toggle = "modal" data-target = "#forgotPassword">Forget Password</button>
<button type = "button" class = "btn btn-primary" id = "close" name = "close" data-dismiss = "modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('clientsCtrl', function($scope, $http) {
$http.get("clients.php")
.then(function(response) {
$scope.names = response.data.records;
});
});
function login() {
var enteredUsername = document.getElementById("Username").value;
var enteredPassword = document.getElementById("Password").value;
console.log(enteredUsername + "," + enteredPassword);
for (var i = 0; i < $scope.names.length; i++) {
console.log($scope.names[i]);
}
}
</script>
</body>
</html>
谢谢。
这是上面代码在AngularJS中的一个纯实现。
HTML:在输入字段上定义模型。
<form>
<input ng-model='user.name' type="input" name="user" placeholder="Username" id = "Username" required>
<input ng-model='user.password' type="password" name="pass" placeholder="Password" id="Password" required>
<button id="loginbtn" type="button" class="btn btn-success" ng-click="login(user)">Log In</button>
</form>
脚本:
var app = angular.module('myApp', []);
app.controller('clientsCtrl', function($scope, $http) {
//this is sample data for names.
$scope.names = [{username: 'abc', password: 'abc'},{username: 'abc1', password: 'abc1'}];
$scope.user = {};
$scope.login = function (user) {
var enteredUsername = user.name,
enteredPassword = user.password;
console.log(enteredUsername + "," + enteredPassword);
for (var i = 0; i < $scope.names.length; i++) {
if($scope.names[i].username === enteredUsername && $scope.names[i].password === enteredPassword) {
alert('Logged In');
break;
}
}
}
});
有很多方法可以做到这一点
1)在控制器中添加登录功能,如var app = angular.module('myApp', []);
app.controller('clientsCtrl', function($scope, $http) {
$http.get("clients.php")
.then(function(response) {
$scope.names = response.data.records;
});
$scope.Login= function(){
var enteredUsername = document.getElementById("Username").value;
var enteredPassword = document.getElementById("Password").value;
console.log(enteredUsername + "," + enteredPassword);
for (var i = 0; i < $scope.names.length; i++) {
console.log($scope.names[i]);
}
};
});
Html代码将变成
<form>
<input type = "input" name = "user" placeholder = "Username" id = "Username" required>
<input type = "input" name = "pass" placeholder = "Password" id = "Password" required>
<button id = "loginbtn" type = "button" class = "btn btn-success" ng-click = "Login()">Log In</button>
</form>
2)将Names
作为参数发送给Login
函数
var app = angular.module('myApp', []);
app.controller('clientsCtrl', function($scope, $http) {
$http.get("clients.php")
.then(function(response) {
$scope.names = response.data.records;
});
});
function login(Names) {
var enteredUsername = document.getElementById("Username").value;
var enteredPassword = document.getElementById("Password").value;
console.log(enteredUsername + "," + enteredPassword);
for (var i = 0; i < Names.length; i++) {
console.log(Names[i]);
}
}
现在Html代码将像
<form>
<input type = "input" name = "user" placeholder = "Username" id = "Username" required>
<input type = "input" name = "pass" placeholder = "Password" id = "Password" required>
<button id = "loginbtn" type = "button" class = "btn btn-success" onclick = "login({{names}})">Log In</button>
</form>
3)使用Names
作为脚本的全局变量
<script>
var Names={}; //as Global scope can use anywhere in this script scope like I used in login function
var app = angular.module('myApp', []);
app.controller('clientsCtrl', function($scope, $http) {
$http.get("clients.php")
.then(function(response) {
$scope.names = response.data.records;
Names=response.data.records;
});
});
function login() {
var enteredUsername = document.getElementById("Username").value;
var enteredPassword = document.getElementById("Password").value;
console.log(enteredUsername + "," + enteredPassword);
for (var i = 0; i < Names.length; i++) {
console.log(Names[i]);
}
}
</script>
希望能有所帮助。