AngularJS提供了$http控件,该控件可作为从服务器读取数据的服务。服务器进行数据库调用以获取所需的记录。AngularJS需要JSON格式的数据。数据准备好后,可以使用$http通过以下方式从服务器获取数据-
function studentController($scope,$https:) {
var url = "data.txt";
$https:.get(url).success( function(response) {
$scope.students = response;
});
}
这里,档案data.txt包含学生记录。$http服务发出一个ajax调用并设置对其属性students的响应。学生模型可以用来绘制HTML表格。
实例
data.txt
[
{
"Name" : "Sea Gull",
"RollNo" : 101,
"Percentage" : "80%"
},
{
"Name" : "Dinkar Kad",
"RollNo" : 201,
"Percentage" : "70%"
},
{
"Name" : "Robert",
"RollNo" : 191,
"Percentage" : "75%"
},
{
"Name" : "Julian Joe",
"RollNo" : 111,
"Percentage" : "77%"
}]
testAngularJS.htm
<html>
<head>
<title>Angular JS Includes</title>
<style>
table, th , td {
border: 1px solid grey;
border-collapse: collapse;
padding: 5px;
}
table tr:nth-child(odd) {
background-color: #f2f2f2;
}
table tr:nth-child(even) {
background-color: #ffffff;
}
</style>
</head>
<body>
<h2>AngularJS-Ajax使用示例</h2>
<div ng-app = "" ng-controller = "studentController">
<table>
<tr>
<th>Name</th>
<th>Roll No</th>
<th>Percentage</th>
</tr>
<tr ng-repeat = "student in students">
<td>{{ student.Name }}</td>
<td>{{ student.RollNo }}</td>
<td>{{ student.Percentage }}</td>
</tr>
</table>
</div>
<script>
function studentController($scope,$http) {
var url = "/run/angularjs/data.txt";
$http.get(url).then( function(response) {
$scope.students = response.data;
});
}
</script>
<script src = "https://cdn.staticfile.org/angular.js/1.2.15/angular.min.js">
</script>
</body>
</html>
要执行此示例,您需要将testAngularJS.htm和data.txt文件部署到Web服务器。在网络浏览器中使用服务器的URL打开文件testAngularJS.htm,然后查看结果。