如何在Java中获取Tomcat版本号 [英] How to get Tomcat version number in Java

问题描述

如何在JAVA中获取Tomcat/Catalina版本号?

How do I get the Tomcat/Catalina version number in JAVA?

我已经看到了很多通过命令行等方法来做的事情，但这不是我可以使用的代码，我也不能使用catalina.path，因为已经从路径中剥离了版本号.

I've seen lots of how to do it via command line etc. but that's not code I can use, I also cannot use catalina.path as the version number has been stripped from the path.

还请注意，我想在代码中使用该版本，因此我看过的各种JSP解决方案也对我不起作用.

Please also note I want to use the version in code, so the various JSP solutions that I've looked at also do not work for me.

谢谢

推荐答案

来自JSP

在一个jsp文件中，您可以打印出这样的版本:

From a JSP

In a jsp file you can print out the version like this:

Tomcat Version : <%= application.getServerInfo() %>

输出:

Tomcat Version : Apache Tomcat/8.0.14

JSP之外(任何Java代码)

如果您希望在JSP之外使用它(例如在Servlet，侦听器或w/e中)，请查看

Outside of JSP (Any Java Code)

If you want it outside of a JSP (e.g. in a Servlet or listener or w/e) take a look at the org.apache.catalina.util.ServerInfo class, it has some nice static methods:

System.out.println(ServerInfo.getServerBuilt());
System.out.println(ServerInfo.getServerInfo());
System.out.println(ServerInfo.getServerNumber());

输出:

Sep 24 2014 09:01:51
Apache Tomcat/8.0.14
8.0.14.0

所以您真正想要的是ServerInfo.getServerNumber().

注意:

ServerInfo类还具有一个main()方法，因此它也可以作为独立的应用程序运行:

The ServerInfo class also has a main() method so it can be run as a standalone application too:

java -cp lib/catalina.jar org.apache.catalina.util.ServerInfo

示例输出:

Server version: Apache Tomcat/8.0.14
Server built:   Sep 24 2014 09:01:51
Server number:  8.0.14.0
OS Name:        Windows 7
OS Version:     6.1
Architecture:   x86
JVM Version:    1.7.0_55-b13
JVM Vendor:     Oracle Corporation

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