AngularJS入门教程中SQL实例详解

2019-11-20 09:23:39

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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

<!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

<?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

<%@ 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 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%>

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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