Hence, you want to build the application as if you are building a three-tier Web application using your favorite Web application server (J2EE, Microsoft.net, PHP, and so on).

因而，您会希望构建应用程序就如同使用自己喜爱的Web应用程序服务器(J2EE、Microsoft . NET、PHP等等)构建一个三层的Web应用程序一样。

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Let's use an example of a common three-tier application environment: Web, application server, and database server.

接下来让我们看一个常见的三层应用程序环境示例：Web、应用服务器和数据库服务器。

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