JVM命令jps

 

jps是JVM的一个常用命令，类似linux中的ps命令。jps是查看java进程信息的命令；ps是查看linux系统中进程的命令

 

格式

     jps [ options ] [ hostid ]

 

参数说明

     options

          -q   只输出java进程的进程id

          -l    输出java进程的进程id和main方法的类全名

          -m  输出java进程的进程id和main方法的入参

          -v   输出java进程的进程id和jvm的入参

          -V   输出java进程的进程id和通过flag文件传入jvm的参数

     hostid

          命令对应的服务器ip，默认不加参数，代码查看本机

 

实例

     1 只输出进程id，其他后面命令都会带出这个信息

        

SZ-sten:Desktop sten$ jps -q
84257
83468

 

     2 输出进程的类全称

     

SZ-sten:Desktop sten$ jps -l
84278 sun.tools.jps.Jps
83468 org.jetbrains.jps.cmdline.Launcher

    

     3 输出方法的入参

     

SZ-lizhiliang:Desktop sten$ jps -m
83468 Launcher /Applications/IntelliJ IDEA.app/Contents/lib/javac2.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jna.jar:/Applications/IntelliJ IDEA.app/Contents/lib/snappy-in-java-0.3.1.jar:/Applications/IntelliJ IDEA.app/Contents/lib/openapi.jar:/Applications/IntelliJ IDEA.app/Contents/lib/oromatcher.jar:/Applications/IntelliJ IDEA.app/Contents/lib/trove4j.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jps-builders.jar:/Applications/IntelliJ IDEA.app/Contents/lib/nanoxml-2.2.3.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jgoodies-forms.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jsr166e.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jdom.jar:/Applications/IntelliJ IDEA.app/Contents/lib/asm-all.jar:/Applications/IntelliJ IDEA.app/Contents/lib/picocontainer.jar:/Applications/IntelliJ IDEA.app/Contents/lib/protobuf-2.5.0.jar:/Applications/IntelliJ IDEA.app/Contents/lib/rt/jps-plugin-system.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jna-platform.jar:/Applications/Intell
84298 Jps -m

 

　　4 输出方法的入参和方法的类的全称

SZ-lizhiliang:Desktop sten$ jps -ml
83468 org.jetbrains.jps.cmdline.Launcher /Applications/IntelliJ IDEA.app/Contents/lib/javac2.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jna.jar:/Applications/IntelliJ IDEA.app/Contents/lib/snappy-in-java-0.3.1.jar:/Applications/IntelliJ IDEA.app/Contents/lib/openapi.jar:/Applications/IntelliJ IDEA.app/Contents/lib/oromatcher.jar:/Applications/IntelliJ IDEA.app/Contents/lib/trove4j.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jps-builders.jar:/Applications/IntelliJ IDEA.app/Contents/lib/nanoxml-2.2.3.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jgoodies-forms.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jsr166e.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jdom.jar:/Applications/IntelliJ IDEA.app/Contents/lib/asm-all.jar:/Applications/IntelliJ IDEA.app/Contents/lib/picocontainer.jar:/Applications/IntelliJ IDEA.app/Contents/lib/protobuf-2.5.0.jar:/Applications/IntelliJ IDEA.app/Contents/lib/rt/jps-plugin-system.jar:/Applications/IntelliJ IDEA.app/Contents/lib/jna-platform.jar:/Applications/Intell
84318 sun.tools.jps.Jps -ml