linux安装jdk (当前环境Debian)

由于测试机系统是 Debian x86_64 GNU/Linux 64位系统

故jdk版本也必须是64位---- jdk-6u27-linux-x64.bin

# cd /data/postmall
# chmod u+x jdk-6u27-linux-x64.bin
# ./jdk-6u27-linux-x64.bin
# cp -r /data/postmall/jdk1.6.0_27  /usr/local/jdk     复制之后，可以把/data/postmall/下的jdk目录和.bin文件删除，然后在系统初始化脚本中设置java环境变量，
# vi /etc/profile

在umask 022下面添加以下设置内容：

export JAVA_HOME=/usr/local/jdk
export JRE_HOME=/usr/local/jdk/jre
export PATH=$PATH:/usr/local/jdk/bin
export CLASSPATH=./:/usr/local/jdk/lib:/usr/local/jdk/jre/lib

保存，退出！

shell> source /etc/profile #使之立即生效

【建议也设置默认启动】

# vi /etc/rc.local

加上：

export JAVA_HOME=/usr/local/jdk
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=.:/usr/local/jdk/lib:/usr/local/jdk/jre/lib:$CLASSPATH
export JRE_HOME=/usr/local/jdk/jre

保存，退出！

退出终端，重启登陆，然后 # java -version 如果有java版本号出来表示成功。

之前在debian上安装jdk一直报错：

root@debian-han:/home/jinzhu/jdk# rpm -ivh jre-7u6-linux-x64.rpm
rpm: RPM should not be used directly install RPM packages, use Alien instead!
rpm: However assuming you know what you are doing...
error: Failed dependencies:
/bin/basename is needed by jre-1.7.0_06-fcs.x86_64
/bin/cat is needed by jre-1.7.0_06-fcs.x86_64
/bin/cp is needed by jre-1.7.0_06-fcs.x86_64
/bin/gawk is needed by jre-1.7.0_06-fcs.x86_64
/bin/grep is needed by jre-1.7.0_06-fcs.x86_64
/bin/ln is needed by jre-1.7.0_06-fcs.x86_64
/bin/ls is needed by jre-1.7.0_06-fcs.x86_64
/bin/mkdir is needed by jre-1.7.0_06-fcs.x86_64
/bin/mv is needed by jre-1.7.0_06-fcs.x86_64
/bin/pwd is needed by jre-1.7.0_06-fcs.x86_64
/bin/rm is needed by jre-1.7.0_06-fcs.x86_64
/bin/sed is needed by jre-1.7.0_06-fcs.x86_64
/bin/sort is needed by jre-1.7.0_06-fcs.x86_64
/bin/touch is needed by jre-1.7.0_06-fcs.x86_64
/usr/bin/cut is needed by jre-1.7.0_06-fcs.x86_64
/usr/bin/dirname is needed by jre-1.7.0_06-fcs.x86_64
/usr/bin/expr is needed by jre-1.7.0_06-fcs.x86_64
/usr/bin/find is needed by jre-1.7.0_06-fcs.x86_64
/usr/bin/tail is needed by jre-1.7.0_06-fcs.x86_64
/usr/bin/tr is needed by jre-1.7.0_06-fcs.x86_64
/usr/bin/wc is needed by jre-1.7.0_06-fcs.x86_64
/bin/sh is needed by jre-1.7.0_06-fcs.x86_64