系统自带了jdk,但是我想自己安装高版本的jdk所以我想把系统自带的jdk卸载,使用yum remove java后发现还是可以使用javac,java,重启系统后也是这样,似乎没有卸干净,懒得管它,反正一个系统也可以有多个jdk,于是我还是照样安装自己的jdk,安装完之后也设了环境变量,可是当我在终端用的时候发现还是以前的jdk版本...系统环境设置如下,干脆把profile这个文件贴出来吧:
# /etc/profile
# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc
# It's NOT good idea to change this file unless you know what you
# are doing. Much better way is to create custom.sh shell script in
# /etc/profile.d/ to make custom changes to environment. This will
# prevent need for merging in future updates.
pathmunge () {
if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
fi
}
# ksh workaround
if [ -z "$EUID" -a -x /usr/bin/id ]; then
EUID=`id -u`
UID=`id -ru`
fi
# Path manipulation
if [ "$EUID" = "0" ]; then
pathmunge /sbin
pathmunge /usr/sbin
pathmunge /usr/local/sbin
else
pathmunge /usr/local/sbin after
pathmunge /usr/sbin after
pathmunge /sbin after
fi
if [ -x /usr/bin/id ]; then
USER="`id -un`"
LOGNAME=$USER
MAIL="/var/spool/mail/$USER"
fi
HOSTNAME=`/bin/hostname 2>/dev/null`
HISTSIZE=1000
HISTCONTROL="ignoreboth"
#export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL
for i in /etc/profile.d/*.sh ; do
if [ -r "$i" ]; then
if [ "$PS1" ]; then
. $i
else
. $i >/dev/null 2>&1
fi
fi
done
unset i
JAVA_HOME=/home/jdk1.6.0_13
PATH=$PATH:/home/jdk1.6.0_13/bin
CLASSPATH=.:/home/jdk1.6.0_13/jre/lib/rt.jar
export JAVA_HOME PATH CLASSPATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL
unset pathmunge
还有网上说只要自己安装的jdk的环境变量设置在系统自带的jdk的之前就可以,那么我怎么知道系统设置的jdk环境变量在哪呢,我看不出来系统自带jdk的环境变量在哪,我该怎么才能让自己的jdk生效呢?高手请指教!
一楼正解,但是现在又有问题了,就是我自己安装eclipse后,新建项目却老是停在next那一步,怎么点next也没用了,也就是根本新建不了工程,只能叉掉,这是为什么阿?