查看 Tomcat 版本
一、不同的tomcat查看版本可能不同，例如有的直接执行 ./version.bat 就可以；二、一般来说，在tomcat启动时就会有版本信息
2010-12-16 17:33:46 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:/Program/Genuitec/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/bin;D:/Program/Apache-Software-Foundation/Tomcat-6.0.20_install/bin
2010-12-16 17:33:46 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2010-12-16 17:33:46 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 426 ms
2010-12-16 17:33:46 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2010-12-16 17:33:46 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.20
三、另外还可以在以下文件中找到，但据tomcat版本不一样，文件位置稍有差异：
Tomcat5：tomcat_home/server/lib/catalina.jar org/apache/catalina/util/ServerInfo.properties
Tomcat6：tomcat_home /lib/catalina.jar org/apache/catalina/util/ServerInfo.properties
（这里的两个jar包可以下载下来用rar打开然后再查看。）
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server.info=Apache Tomcat/6.0.16
server.number=6.0.16.0
server.built=Jan 28 2008 11:35:29
博文来源：http://dengjianqiang200.blog.163.com/blog/static/65811920094644354148/
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