AppML 数据


AppML 的主要目的是为 HTML 页面提供数据


将 AppML 连接到数据

  • AppML 可以显示来自变量的数据
  • AppML 可以显示文件中的数据
  • AppML 可以显示来自数据库的数据

AppML 使用 JavaScript 对象

分离 HTML 和数据的常用方法是将数据存储在 JavaScript 对象中。

实例

<table appml-data="dataObj">
<tr>
  <th>Customer</th>
  <th>City</th>
  <th>Country</th>
</tr>
<tr appml-repeat="records">
  <td>{{CustomerName}}</td>
  <td>{{City}}</td>
  <td>{{Country}}</td>
</tr>
</table>

<script>
var dataObj = {
"records":[
{"CustomerName":"Alfreds Futterkiste","City":"Berlin","Country":"Germany"},
{"CustomerName":"Ana Trujillo Emparedados y helados","City":"México D.F.","Country":"Mexico"},
{"CustomerName":"Antonio Moreno Taquería","City":"México D.F.","Country":"Mexico"},
{"CustomerName":"Around the Horn","City":"London","Country":"UK"},
{"CustomerName":"B's Beverages","City":"London","Country":"UK"},
{"CustomerName":"Berglunds snabbköp","City":"Luleå","Country":"Sweden"},
{"CustomerName":"Blauer See Delikatessen","City":"Mannheim","Country":"Germany"},
{"CustomerName":"Blondel père et fils","City":"Strasbourg","Country":"France"},
{"CustomerName":"Bólido Comidas preparadas","City":"Madrid","Country":"Spain"},
{"CustomerName":"Bon app'","City":"Marseille","Country":"France"},
{"CustomerName":"Bottom-Dollar Marketse","City":"Tsawassen","Country":"Canada"},
{"CustomerName":"Cactus Comidas para llevar","City":"Buenos Aires","Country":"Argentina"},
{"CustomerName":"Centro comercial Moctezuma","City":"México D.F.","Country":"Mexico"},
{"CustomerName":"Chop-suey Chinese","City":"Bern","Country":"Switzerland"},
{"CustomerName":"Comércio Mineiro","City":"São Paulo","Country":"Brazil"}
]};
</script>
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使用 JSON 文件的 AppML

另一种分离 HTML 和 Data 的常用方法是将数据存储在 JSON 文件中:

customers.js

{
"records":[
{"CustomerName":"Alfreds Futterkiste","City":"Berlin","Country":"Germany"},
{"CustomerName":"Ana Trujillo Emparedados y helados","City":"México D.F.","Country":"Mexico"},
{"CustomerName":"Antonio Moreno Taquería","City":"México D.F.","Country":"Mexico"},
{"CustomerName":"Around the Horn","City":"London","Country":"UK"},
{"CustomerName":"B's Beverages","City":"London","Country":"UK"},
{"CustomerName":"Berglunds snabbköp","City":"Luleå","Country":"Sweden"},
{"CustomerName":"Blauer See Delikatessen","City":"Mannheim","Country":"Germany"},
{"CustomerName":"Blondel père et fils","City":"Strasbourg","Country":"France"},
{"CustomerName":"Bólido Comidas preparadas","City":"Madrid","Country":"Spain"},
{"CustomerName":"Bon app'","City":"Marseille","Country":"France"},
{"CustomerName":"Bottom-Dollar Marketse","City":"Tsawassen","Country":"Canada"},
{"CustomerName":"Cactus Comidas para llevar","City":"Buenos Aires","Country":"Argentina"},
{"CustomerName":"Centro comercial Moctezuma","City":"México D.F.","Country":"Mexico"},
{"CustomerName":"Chop-suey Chinese","City":"Bern","Country":"Switzerland"},
{"CustomerName":"Comércio Mineiro","City":"São Paulo","Country":"Brazil"}
]
}

使用 AppML,您可以在 appml-data 属性中指定 JSON 文件作为数据源:

实例

<table appml-data="customers.js">
<tr>
  <th>Customer</th>
  <th>City</th>
  <th>Country</th>
</tr>
<tr appml-repeat="records">
  <td>{{CustomerName}}</td>
  <td>{{City}}</td>
  <td>{{Country}}</td>
</tr>
</table>
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AppML 使用数据库

在 Web 服务器的帮助下,您可以为您的应用程序提供 SQL 数据。

本示例使用 PHP 从 MySQL 数据库中读取数据:

实例

<table appml-data="https://www.w3schools.cn/appml/customers.php">
<tr>
  <th>Customer</th>
  <th>City</th>
  <th>Country</th>
</tr>
<tr appml-repeat="records">
  <td>{{CustomerName}}</td>
  <td>{{City}}</td>
  <td>{{Country}}</td>
</tr>
</table>
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此示例使用 .NET 从 SQL Server 数据库中读取数据:

实例

<table appml-data="https://www.w3schools.cn/appml/customers.aspx">
<tr>
  <th>Customer</th>
  <th>City</th>
  <th>Country</th>
</tr>
<tr appml-repeat="records">
  <td>{{CustomerName}}</td>
  <td>{{City}}</td>
  <td>{{Country}}</td>
</tr>
</table>
亲自试一试 »

AppML 的功能

您即将发现 AppML 的强大功能。

AppML 可以为您提供数据、控制器和模型:

  • 超简单的 HTML 应用程序开发
  • 超级简单的建模、原型设计和测试

您可以在 HTML 页面中放置任意数量的 AppML 应用程序。

AppML 不会干扰页面的其他部分。

您拥有完全的 HTML、CSS 和 JavaScript 自由。

AppML 可用于开发完整的 CRUD Web 应用程序。

CRUD: Create, Read, Update,Delete.

要发现 AppML 的强大功能: 查看 AppML 演示