JDK自带的工具可以方便的帮助我们处理一些问题，包括查看JVM参数，分析内存变化，查看内存区域，查看线程等信息。
我们熟悉的有java.exe,javac.exe,javap.exe(偶尔用),jps.exe,jmap.exe....等，下面会详细介绍。分别在linux和windows下面介绍。windows与linux下面使用的都是JDK1.7.0_80
windows下的jdk版本如下:
$ java -version java version "1.7.0_80" Java(TM) SE Runtime Environment (build 1.7.0_80-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
linux下的JDK版本如下:
[root@VM_0_12_centos ~]# java -version java version "1.7.0_80" Java(TM) SE Runtime Environment (build 1.7.0_80-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
1.工具简介
1.1windows下面查看
$ dir
appletviewer.exe java-rmi.exe jrunscript.exe pack200.exe
apt.exe javaw.exe jsadebugd.exe policytool.exe
extcheck.exe javaws.exe jstack.exe rmic.exe
idlj.exe jcmd.exe jstat.exe rmid.exe
jabswitch.exe jconsole.exe jstatd.exe rmiregistry.exe
jar.exe jdb.exe jvisualvm.exe schemagen.exe
jarsigner.exe jhat.exe keytool.exe serialver.exe
java.exe jinfo.exe kinit.exe servertool.exe
javac.exe jli.dll klist.exe tnameserv.exe
javadoc.exe jmap.exe ktab.exe unpack200.exe
javafxpackager.exe jmc.exe msvcr100.dll wsgen.exe
javah.exe jmc.ini native2ascii.exe wsimport.exe
javap.exe jps.exe orbd.exe xjc.exe
2.linux下面查看工具
[root@VM_0_12_centos bin]# ls appletviewer javac jconsole jps native2ascii serialver apt javadoc jcontrol jrunscript orbd servertool ControlPanel javafxpackager jdb jsadebugd pack200 tnameserv extcheck javah jhat jstack policytool unpack200 idlj javap jinfo jstat rmic wsgen jar java-rmi.cgi jmap jstatd rmid wsimport jarsigner javaws jmc jvisualvm rmiregistry xjc java jcmd jmc.ini keytool schemagen