AngularJS SQL

Autumn ·
更新时间:2024-11-13
· 556 次阅读

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


 
   
   
 
{{ x.Name }}{{ x.Country }}



var app = angular.module('myApp', []);
app.controller('customersCtrl', function($scope, $http) {
    $http.get("http://www.mscto.com/try/angularjs/data/Customers_MySQL.php")
    .success(function (response) {$scope.names = response.records;});
});

ASP.NET 中执行 SQL 获取数据 AngularJS 实例


 
   
   
 
{{ x.Name }}{{ x.Country }}



var app = angular.module('myApp', []);
app.controller('customersCtrl', function($scope, $http) {
    $http.get("http://www.mscto.com/try/angularjs/data/Customers_SQL.aspx")
    .success(function (response) {$scope.names = response.records;});
});

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 <?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

<%
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



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