3 层应用程序的 Java 和 J2EE 代码示例
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Java and J2EE code examples for 3-tier apps
提问by yoitsfrancis
Do you know a site that offers a tutorial with sample source code for a 3-tier application (the usual data access layer, business layer and UI layer)?
您是否知道某个站点提供了包含 3 层应用程序（通常的数据访问层、业务层和 UI 层）的示例源代码的教程？
The simple, readable and intuitive the source code. Best practices that are applied to the code are welcome as well.
源代码简单、易读、直观。也欢迎应用于代码的最佳实践。
采纳答案by Vinzzz
Take a look at Appfuse, it's a quick-starter for java web application, provided with different frameworks : Tapestry , Spring MVC / Struts2 /JSF + Hibernate / Hibatis. It's based on a Maven build, all basic configurations done for you... One of the few 'realistic' sample that come to my mind...
看看Appfuse，它是一个 Java Web 应用程序的快速入门，提供了不同的框架：Tapestry、Spring MVC / Struts2 /JSF + Hibernate / Hibatis。它基于 Maven 构建，为您完成所有基本配置......我想到的为数不多的“现实”示例之一......
Another one is the Petstore application from sun, and looking for 'petstore download' on Google, you can find stuff that seems interesting (to me anyway, i didn't give it a look :-), like this spring petstore, "an Ajax based application with DWR, Spring and Hibernate"...
另一个是来自 sun 的 Petstore 应用程序，在谷歌上寻找“petstore 下载”，你可以找到看起来很有趣的东西（反正对我来说，我没有看:-)，比如这个spring petstore，“一个带有 DWR、Spring 和 Hibernate 的基于 Ajax 的应用程序”...
回答by David Rabinowitz
The sample application I'm aware of are the following:
我知道的示例应用程序如下：
- The famous Java Pet Storefrom Sun. In the version I've downloaded, it used a wide range of Java EE technologies, but it didn't use any modern MVC framework.
- From the Spring project you have several applications: JPetStore, Pet Clinic and more. All come with the spring download.
- The Seam framework has an Hotel Booking application
- You can also have a look at the 3 tier open source applications such as Liferay, but bare in mind that they may by very large. I'm not familiar with any that I can recommend, so please google for CRM/ERP/Protals etc. (sourceforge and freshmeat.net might be good sources as well)
- Although it is backed by a CMS and not database, Artifactorymay also serve as a good example.
- Sun著名的Java Pet Store。在我下载的版本中，它使用了广泛的 Java EE 技术，但没有使用任何现代 MVC 框架。
- 在 Spring 项目中，您有几个应用程序：JPetStore、Pet Clinic 等等。所有这些都带有 spring 下载。
- Seam 框架有一个Hotel Booking 应用程序
- 您还可以查看 3 层开源应用程序，例如Liferay，但请记住，它们可能非常大。我不熟悉我可以推荐的任何内容，所以请谷歌搜索 CRM/ERP/Protals 等（sourceforge 和 freshmeat.net 也可能是很好的来源）
- 尽管它由 CMS 而不是数据库支持，Artifactory也可以作为一个很好的例子。
Hope these help.
希望这些有帮助。
回答by duffymo
Yes, have a look at the Spring MVC step by stepexample. It's very clear.
是的，看一下Spring MVC 的分步示例。这很清楚。
