AngularJS SQL
在前面章節中的代碼也可以用於讀取數據庫中的數據。
使用PHP 從MySQL 中獲取數據
AngularJS 實例
< 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) {
$http.get("http://www.w3big.com/try/angularjs/data/Customers_MySQL.php")
.success(function (response) {$scope.names = response.records;});
});
< /script >
< 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) {
$http.get("http://www.w3big.com/try/angularjs/data/Customers_MySQL.php")
.success(function (response) {$scope.names = response.records;});
});
< /script >
嘗試一下»
ASP.NET 中執行SQL 獲取數據
AngularJS 實例
< 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) {
$http.get("http://www.w3big.com/try/angularjs/data/Customers_SQL.aspx")
.success(function (response) {$scope.names = response.records;});
});
< /script >
< 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) {
$http.get("http://www.w3big.com/try/angularjs/data/Customers_SQL.aspx")
.success(function (response) {$scope.names = response.records;});
});
< /script >
嘗試一下»
服務端代碼
以下列出了列出了幾種服務端代碼類型:
- 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 請求
如果你需要從不同的服務器(不同域名)上獲取數據就需要使用跨域HTTP 請求。
跨域請求在網頁上非常常見。 很多網頁從不同服務器上載入CSS, 圖片,Js腳本等。
在現代瀏覽器中,為了數據的安全,所有請求被嚴格限制在同一域名下,如果需要調用不同站點的數據,需要通過跨域來解決。
以下的PHP 代碼運行使用的網站進行跨域訪問。
header("Access-Control-Allow-Origin: *");
更多跨域訪問解決方案可參閱:PHP Ajax 跨域問題最佳解決方案。
1. PHP 和MySql 代碼實例
<?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);
?>
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 代碼實例
<?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);
?>
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 代碼實例
<%@ 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
%>
<%@ 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 代碼實例
@{
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
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