网上很多人说用jar包解压，但jar命令解压时不能指定目录，推荐使用unzip解压war包。

Linux系统中先检查是否可用unzip命令[root@VM_83_104_centos ~]# unzip --help

-bash: unzip: command not found

需要先自行下载：yum install zip unzip[root@VM_83_104_centos ~]# yum install zip unzip

Loaded plugins: fastestmirror, langpacks

epel | 4.3 kB 00:00:00

extras | 3.4 kB 00:00:00

mysql-connectors-community | 2.5 kB 00:00:00

mysql-tools-community | 2.5 kB 00:00:00

mysql56-community | 2.5 kB 00:00:00

os | 3.6 kB 00:00:00

updates | 3.4 kB 00:00:00

(1/3): epel/7/x86_64/group_gz | 170 kB 00:00:00

(2/3): epel/7/x86_64/updateinfo | 673 kB 00:00:00

(3/3): epel/7/x86_64/primary_db | 4.3 MB 00:00:00

Loading mirror speeds from cached hostfile

Package zip-3.0-10.el7.x86_64 already installed and latest version

Package unzip-6.0-15.el7.x86_64 already installed and latest version

Nothing to do

查看unzip命令的帮助[root@VM_83_104_centos ~]# unzip --help

UnZip 6.00 of 20 April 2009, by Info-ZIP. Maintained by C. Spieler. Send

bug reports using http://www.info-zip.org/zip-bug.html; see README for details.

Usage: unzip [-Z] [-opts[modifiers]] file[.zip] [list] [-x xlist] [-d exdir]

Default action is to extract files in list, except those in xlist, to exdir;

file[.zip] may be a wildcard. -Z => ZipInfo mode ("unzip -Z" for usage).

-p extract files to pipe, no messages -l list files (short format)

-f freshen existing files, create none -t test compressed archive data

-u update files, create if necessary -z display archive comment only

-v list verbosely/show version info -T timestamp archive to latest

-x exclude files that follow (in xlist) -d extract files into exdir

modifiers:

-n never overwrite existing files -q quiet mode (-qq => quieter)

-o overwrite files WITHOUT prompting -a auto-convert any text files

-j junk paths (do not make directories) -aa treat ALL files as text

-U use escapes for all non-ASCII Unicode -UU ignore any Unicode fields

-C match filenames case-insensitively -L make (some) names lowercase

-X restore UID/GID info -V retain VMS version numbers

-K keep setuid/setgid/tacky permissions -M pipe through "more" pager

See "unzip -hh" or unzip.txt for more help. Examples:

unzip data1 -x joe=> extract all files except joe from zipfile data1.zip

unzip -p foo | more => send contents of foo.zip via pipe into program more

unzip -fo foo ReadMe => quietly replace existing ReadMe if archive file newer

[root@VM_83_104_centos ~]#

需要用到的指令：-o: -q:-o overwrite files WITHOUT prompting：不必先询问用户，unzip执 行后覆盖原有文件。

-q quiet mode (-qq => quieter)：执行时不显示任何信息(静默)。

-d  extract files into exdir：把压缩文件解压到指定目录下

解压war文件到指定目录：将test.war文件解压到test目录下=unzip -oq test.war -d test

最后附上一个通过jar命令操作war包的方式：

压缩war包，把当前目录下的所有文件打包到xxx.war：jar -cvfM0 xxx.war ./-c 创建war包

-v 显示过程信息

-f

-M

-0 这个是阿拉伯数字，只打包不压缩的意思

解压war包，解压xxx.war到当前目录：jar -xvf game.war