AngularJS入门教程中SQL实例详解
时间：2021-05-31 08:22:48|栏目：AngularJS|点击： 次
AngularJS SQL
在前面章节中的代码也可以用于读取数据库中的数据。
使用 PHP 从 MySQL 中获取数据
AngularJS 实例
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
<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>
</head>
<body>
<div ng-app="myApp" ng-controller="customersCtrl">
<table>
<tr ng-repeat="x in names">
<td>{{ x.Name }}</td>
<td>{{ x.Country }}</td>
</tr>
</table>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('customersCtrl', function($scope, $http) {
$http.get("/try/angularjs/data/Customers_MySQL.php")
.success(function (response) {$scope.names = response.records;});
});
</script>
</body>
</html>
运行结果：
| Alfreds Futterkiste | Germany |
| Ana Trujillo Emparedados y helados | Mexico |
| Antonio Moreno Taquería | Mexico |
| Around the Horn | UK |
| B's Beverages | UK |
| Berglunds snabbköp | Sweden |
| Blauer See Delikatessen | Germany |
| Blondel père et fils | France |
| Bólido Comidas preparadas | Spain |
| Bon app' | France |
| Bottom-Dollar Marketse | Canada |
| Cactus Comidas para llevar | Argentina |
| Centro comercial Moctezuma | Mexico |
| Chop-suey Chinese | Switzerland |
| Comércio Mineiro | Brazil |
ASP.NET 中执行 SQL 获取数据
AngularJS 实例
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
<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>
</head>
<body>
<div ng-app="myApp" ng-controller="customersCtrl">
<table>
<tr ng-repeat="x in names">
<td>{{ x.Name }}</td>
<td>{{ x.Country }}</td>
</tr>
</table>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('customersCtrl', function($scope, $http) {
$http.get("http://www.runoob.com/try/angularjs/data/Customers_SQL.aspx")
.success(function (response) {$scope.names = response.records;});
});
</script>
</body>
</html>
运行结果：
| Alfreds Futterkiste | Germany |
| Berglunds snabbköp | Sweden |
| Centro comercial Moctezuma | Mexico |
| Ernst Handel | Austria |
| FISSA Fabrica Inter. Salchichas S.A. | Spain |
| Galería del gastrónomo | Spain |
| Island Trading | UK |
| Königlich Essen | Germany |
| Laughing Bacchus Wine Cellars | Canada |
| Magazzini Alimentari Riuniti | Italy |
| North/South | UK |
| Paris spécialités | France |
| Rattlesnake Canyon Grocery | USA |
| Simons bistro | Denmark |
| The Big Cheese | USA |
| Vaffeljernet | Denmark |
| Wolski Zajazd | Poland |
服务端代码
以下列出了列出了几种服务端代码类型：
使用 PHP 和 MySQL。返回 JSON。
使用 PHP 和 MS Access。返回 JSON。
使用 ASP.NET, VB, 及 MS Access。 返回 JSON。
使用 ASP.NET, Razor, 及 SQL Lite。 返回 JSON。
跨域 HTTP 请求
如果你需要从不同的服务器（不同域名）上获取数据就需要使用跨域 HTTP 请求。
跨域请求在网页上非常常见。很多网页从不同服务器上载入 CSS, 图片，Js脚本等。
在现代浏览器中，为了数据的安全，所有请求被严格限制在同一域名下，如果需要调用不同站点的数据，需要通过跨域来解决。
以下的 PHP 代码运行使用的网站进行跨域访问。
header("Access-Control-Allow-Origin: *");
更多跨域访问解决方案可参阅：PHP Ajax 跨域问题最佳解决方案。
1. PHP 和 MySql 代码实例
<?php
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");
$conn = new mysqli("myServer", "myUser", "myPassword", "Northwind");
$result = $conn->query("SELECT CompanyName, City, Country FROM Customers");
$outp = "";
while($rs = $result->fetch_array(MYSQLI_ASSOC)) {
if ($outp != "") {$outp .= ",";}
$outp .= '{"Name":"' . $rs["CompanyName"] . '",';
$outp .= '"City":"' . $rs["City"] . '",';
$outp .= '"Country":"'. $rs["Country"] . '"}';
}
$outp ='{"records":['.$outp.']}';
$conn->close();
echo($outp);
?>
2. PHP 和 MS Access 代码实例
<?php
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=ISO-8859-1");
$conn = new COM("ADODB.Connection");
$conn->open("PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=Northwind.mdb");
$rs = $conn->execute("SELECT CompanyName, City, Country FROM Customers");
$outp = "";
while (!$rs->EOF) {
if ($outp != "") {$outp .= ",";}
$outp .= '{"Name":"' . $rs["CompanyName"] . '",';
$outp .= '"City":"' . $rs["City"] . '",';
$outp .= '"Country":"'. $rs["Country"] . '"}';
$rs->MoveNext();
}
$outp ='{"records":['.$outp.']}';
$conn->close();
echo ($outp);
?>
3. ASP.NET, VB 和 MS Access 代码实例
<%@ Import Namespace="System.IO"%>
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.OleDb"%>
<%
Response.AppendHeader("Access-Control-Allow-Origin", "*")
Response.AppendHeader("Content-type", "application/json")
Dim conn As OleDbConnection
Dim objAdapter As OleDbDataAdapter
Dim objTable As DataTable
Dim objRow As DataRow
Dim objDataSet As New DataSet()
Dim outp
Dim c
conn = New OledbConnection("Provider=Microsoft.Jet.OLEDB.4.0;data source=Northwind.mdb")
objAdapter = New OledbDataAdapter("SELECT CompanyName, City, Country FROM Customers", conn)
objAdapter.Fill(objDataSet, "myTable")
objTable=objDataSet.Tables("myTable")
outp = ""
c = chr(34)
for each x in objTable.Rows
if outp <> "" then outp = outp & ","
outp = outp & "{" & c & "Name" & c & ":" & c & x("CompanyName") & c & ","
outp = outp & c & "City" & c & ":" & c & x("City") & c & ","
outp = outp & c & "Country" & c & ":" & c & x("Country") & c & "}"
next
outp ="{" & c & "records" & c & ":[" & outp & "]}"
response.write(outp)
conn.close
%>
4. ASP.NET, VB Razor 和 SQL Lite 代码实例
@{
Response.AppendHeader("Access-Control-Allow-Origin", "*")
Response.AppendHeader("Content-type", "application/json")
var db = Database.Open("Northwind");
var query = db.Query("SELECT CompanyName, City, Country FROM Customers");
var outp =""
var c = chr(34)
}
@foreach(var row in query)
{
if outp <> "" then outp = outp + ","
outp = outp + "{" + c + "Name" + c + ":" + c + @row.CompanyName + c + ","
outp = outp + c + "City" + c + ":" + c + @row.City + c + ","
outp = outp + c + "Country" + c + ":" + c + @row.Country + c + "}"
}
outp ="{" + c + "records" + c + ":[" + outp + "]}"
@outp
以上就是AngularJS SQL资料的整理，后续继续补充,希望能帮助学习的朋友。
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