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 可以显示数据库中的数据
使用 JavaScript 对象的 AppML
分离 HTML 和数据的常用方法是将数据存储在 JavaScript 对象中。
实例
<!DOCTYPE html><html><title>Customers</title><link rel="stylesheet" href="/example/appml/style.css"><script src="https://cankaoshouce.com/js/appml/appml.js"></script><body><h2>Customers</h2><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></body></html>
使用 JSON 文件的 AppML
另一种分离 HTML 和数据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,可以在 AppML 数据属性中指定 JSON 文件作为数据源:
实例
<!DOCTYPE html><html lang="en-US"><title>Customers</title><link rel="stylesheet" href="/example/appml/style.css"><script src="https://cankaoshouce.com/js/appml/appml.js"></script><body><h2>Customers</h2><div appml-data="/example/appml/customers.js"><table><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></div></body></html>
使用数据库的 AppML
在 web 服务器的帮助下,您可以向应用程序提供SQL数据。
本例使用 ASPX 从 MySQL 数据库读取数据:
实例
<!DOCTYPE html><html><title>Customers</title><link rel="stylesheet" href="/example/appml/style.css"><script src="https://cankaoshouce.com/js/appml/appml.js"></script><body><h2>Customers</h2><table appml-data="/example/appml/customers.ashx"><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></body></html>
AppML 的强大功能
您即将发现 AppML 的强大功能。
AppML 可以为您提供以下数据、控制器和模型:
- 超简单的 HTML 应用程序开发
- 超级简单的建模、原型制作和测试
您可以在 HTML 页面中放入任意数量的 AppML 应用程序。
AppML 不会干扰页面的其他部分。
您可以完全自由地使用 HTML、CSS 和 JavaScript。
AppML 可以完全用于开发 CRUD web 应用程序。
CRUD: Create(创建), Read(读取), Update(更新), Delete(删除)。