java - 检查服务器上的 tomcat 版本以获取 ansible

Question

运行ansible playbooks时需要验证服务器上tomcat的版本。我知道的唯一方法是:

[root@server ~]# cd /usr/share/tomcat8/bin/
[root@server bin]# ./version.sh
Using CATALINA_BASE:   /usr/share/tomcat8
Using CATALINA_HOME:   /usr/share/tomcat8
Using CATALINA_TMPDIR: /usr/share/tomcat8/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /usr/share/tomcat8/bin/bootstrap.jar:/usr/share/tomcat8/bin/tomcat-juli.jar
Server version: Apache Tomcat/8.0.30
Server built:   Dec 1 2015 22:30:46 UTC
Server number:  8.0.30.0
OS Name:        Linux
OS Version:     2.6.32-504.1.3.el6.x86_64
Architecture:   amd64
JVM Version:    1.8.0_66-b17
JVM Vendor:     Oracle Corporation

还有别的办法吗？这不是最好的，因为即使这个 version.sh 脚本的目录也会根据 tomcat 版本而改变，并且有很多解析工作要做。

Answer 1

有几种方法可以做到这一点，您可以找到它们 here

1. open http://localhost:8080/ in your web browser and version should be visible there.
2. execute the version.sh script in your tomcat/bin directory.
3. you can check it in release notes.
4. you can also check the version through java -cp catalina.jar org.apache.catalina.util.ServerInfo

来源:how to find out running tomcat version