linux下查看tomcat使用的jdk版本

要查看tomcat目前用的jdk版本
进入tomcat安装文件夹的bin目录下 执行./version.sh   就可以看到了，查看如下：

Using CATALINA_BASE:   /usr/java/apache-tomcat-7.0.41
Using CATALINA_HOME:   /usr/java/apache-tomcat-7.0.41
Using CATALINA_TMPDIR: /usr/java/apache-tomcat-7.0.41/temp
Using JRE_HOME:        /usr/java/jdk1.7.0_80
Using CLASSPATH:       /usr/java/apache-tomcat-7.0.41/bin/bootstrap.jar:/usr/java/apache-tomcat-7.0.41/bin/tomcat-juli.jar
Server version: Apache Tomcat/7.0.41
Server built:   Jun 6 2013 11:16:08
Server number:  7.0.41.0
OS Name:        Linux
OS Version:     2.6.32-279.el6.x86_64
Architecture:   amd64
JVM Version:    1.7.0_80-b15
JVM Vendor:     Oracle Corporation

参考的文章：https://blog.csdn.net/s592652578/article/details/53304497