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

var app = angular.module('myApp', []);

app.controller('customersCtrl',

function($scope, $http) {

$http.get("http://www.paoo.net/try/demo_source/Customers_MySQL.php")

.success(function (response) {$scope.names = response.records;});

});

尝试一下 »

ASP.NET 中执行 SQL 获取数据

AngularJS 实例

var app = angular.module('myApp', []);

app.controller('customersCtrl',

function($scope, $http) {

$http.get("http://www.paoo.net/try/demo_source/Customers_SQL.aspx")

.success(function (response) {$scope.names = response.records;});

});

尝试一下 »

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: *");

1. PHP 和 MySql 代码实例

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

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

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