linux升级jdk

下载新版jdk，解压到linux目录下，编辑/etc/profile，注释原来的jdk

#export JAVA_HOME=/opt/jdk1.6.0_30_x64

#export JAVA_BIN=/opt/jdk1.6.0_30_x64/bin

#export PATH=$PATH:$JAVA_HOME/bin

#export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

#export JAVA_HOME JAVA_BIN PATH CLASSPATH

export PATH=$PATH:/usr/local/swftools/bin/

#jdk1.7

export JAVA_HOME=/usr/local/java/jdk1.7.0_67/

export PATH=$JAVA_HOME/bin:$PATH

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

保存，执行source /etc/profile，即生效，查看java版本，java -version