sudo gedit /etc/profile
把下面的粘贴在最后面,路径可以修改根距自己的安装目录来定
export JAVA_HOME=/usr/local/java/jdk1.6.0_06
export JRE_HOME=/usr/local/java/jdk1.6.0_06/jre
export CATALINA_HOME=/usr/local/java/apache-tomcat-5.5.26
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH
