ubuntu下安装Java并设置环境变量
1.安装JDK并设置Java环境变量
下载JDK:
http://www.oracle.com/technetwork/java/javase/downloads/jdk-6u26-download-400750.html
chmod u+x jdk-6u10-rc-bin-b28-linux-i586-21_jul_2008.bin
安装JDK:
sudo /home/lpxuan/Download/jdk-6u10-rc-bin-b28-linux-i586-21_jul_2008.bin
安装至/usr/lib/jvm目录下
/usr/lib/jdk1.6.0_26/bin
profile 或environment配置其中一个就可以
以profile为例：
# /etc/profile
# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc
PROMPT_COMMAND='echo -ne "/033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/~}"; echo -ne "/007"'
pathmunge () {
if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
fi
}
# Path manipulation
if [ `id -u` = 0 ]; then
pathmunge /sbin
pathmunge /usr/sbin
pathmunge /usr/local/sbin
fi
pathmunge /usr/X11R6/bin after
unset pathmunge
# No core files by default
ulimit -S -c 0 > /dev/null 2>&1
USER="`id -un`"
LOGNAME=$USER
MAIL="/var/spool/mail/$USER"
HOSTNAME=`/bin/hostname`
HISTSIZE=1000
if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ]; then
INPUTRC=/etc/inputrc
fi
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC
for i in /etc/profile.d/*.sh ; do
if [ -r "$i" ]; then
. $i
fi
done
unset i
export JAVA_HOME=/usr/alibaba/java
export PATH=$JAVA_HOME/bin:$ANT_HOME/bin:$ANTX_HOME/bin:$PATH
umask 022
测试java安装是否成功
java -version