linux JAVA JDK环境配置

export JAVA_HOME=/usr/local/jdk1.7.0_45
export JRE_HOME=/usr/local/jdk1.7.0_45/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin: $PATH