如何区分正在运行的Java程序

Question

Our server machine runs many java programes. And some of them are launched with the command "java -jar ***.jar". but sometimes I have to stop one to update the class files in it. the problem is how can i fingure out which program is the one i want to stop, or is there a tool I can use to find out the executable jar files' location.

Answer 1

You can use jps command.

$ jps -v
34370 Jps -Dapplication.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/Contents/Home -Xms8m
34341 main -XX:+TieredCompilation -Xbootclasspath/a:/usr/local/Cellar/leiningen/2.5.0/libexec/leiningen-2.5.0-standalone.jar -Dfile.encoding=UTF-8 -Dmaven.wagon.http.ssl.easy=false -Dleiningen.original.pwd=/Users/ntalbs/js-workspace/synapeditor_mobile -Dleiningen.script=/usr/local/bin/lein

jps will display all java processes. The first column is OS pid. You can check the messages on console, then kill what you want. Perhaps you want to check jps document from Oracle.

Also, you can use ps and grep command.

$ ps -ef | grep java

or

$ ps -aux | grep java