AngularJS SQL
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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
<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) { $http.get("http://www.runoob.com/try/angularjs/data/Customers_MySQL.php")
.success(function (response) {$scope.names = response.records;});});</script>
ASP.NET 中执行 SQL 获取数据
AngularJS 实例
<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>
服务端代码
以下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
<?phpheader("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($outp);?>
2. PHP 和 MS Access 代码实例
<?phpheader("Access-Control-Allow-Origin: *");header("Content-Type:
application/json; charset=ISO-8859-1");$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
<pre><%@ Import Namespace="System.IO"%></pre><pre><%@ Import Namespace="System.Data"%></pre>
<pre><%@ Import Namespace="System.Data.OleDb"%></pre><pre><%
Response.AppendHeader("Access-Control-Allow-Origin", "*")
Response.AppendHeader("Content-type", "application/json")Dim conn As
OleDbConnectionDim objAdapter As OleDbDataAdapterDim objTable As
DataTableDim objRow As DataRowDim objDataSet As New DataSet()
Dim outpDim cconn = 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.Rowsif 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 & "}"nextoutp
="{" & c & "records" & c & ":[" & outp & "]}"response.write(outp)conn.close%></pre>
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
