将战争应用程序名称与战争文件名分开 [英] Separating war application name from war file name

问题描述

目前，如果我在 tomcat 上部署一个名为 say myapp.war 的战争文件，我可以通过 http://localhost/myapp/MyServlet.

Currently if i deploy a war file on tomcat named say myapp.war, I can access its url by http://localhost/myapp/MyServlet.

然而，我想要的是部署一个战争文件名中带有版本号的战争，并且仍然具有相同的网址.例如，我想部署 myapp-1.1.0.war 并且 URL 仍然是 http://localhost/myapp/MyServlet

However what I want is to deploy a war with a version number in the war file name and still have the same url. For eg, I want to deploy myapp-1.1.0.war and still have the url be http://localhost/myapp/MyServlet

当然我需要不断更新war，版本号也会不断变化，所以我不能在任何地方硬编码war文件名.web.xml 中是否有任何设置可以用来为应用程序保留相同的 url，而不管 war 文件名如何?

Of course I need to keep updating the war and the version number will keep changing, so I cant hardcode the war filename anywhere. Is there any setting in web.xml I can use to keep the same url for the app regardless of the war filename?

推荐答案

解决办法是停止使用Tomcat的自动部署功能，它采用设置上下文名称"的快捷方式(/myapp URL 的一部分)到.war"之前的 WAR 文件名部分.

The solution is to stop using the automatic deployment feature of Tomcat, which takes the shortcut of setting the "context name" (the /myapp part of the URL) to the portion of the WAR filename before ".war".

相反，自己将 WAR 内容提取到文件系统，并在 TOMCAT_HOME/conf/[enginename]/[hostname]/[contextname].xml 中设置一个 XML 文件，该文件指向所需的上下文路径(例如 /myapp) 到应用程序在磁盘上的位置(例如 /opt/webapps/myapp-1.1.0/).

Instead, extract the WAR contents to the filesystem yourself and setup an XML file at TOMCAT_HOME/conf/[enginename]/[hostname]/[contextname].xml which points the desired context path (such as /myapp) to the location of the application on disk (such as /opt/webapps/myapp-1.1.0/).

Tomcat 参考文档 提供了很好的解释Tomcat 如何自动部署应用程序，以及如何配置自定义逻辑以将上下文路径映射到应用程序文件位置(除了我上面建议的方法之外，还有一些其他的设置方法).

The Tomcat reference docs provide a good explanation of how Tomcat deploys applications automatically, and how you can configure customized logic for the mapping of context path to application file location (there are a handful of alternate ways to set this up other than the one I suggest above).

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