给Ubuntu配置JAVA环境

在Ubuntu下安装JAVA虚拟机和SDK(开发包)是非常轻松容易的:
联网的情况下在终端下输入命令
$sudo apt-get install sun-java6-jre sun-java6-jdk
这条命令就可以帮助下载并安装JAVA6了,顺便再给浏览器安装JAVA支持:
$sudo apt-get install sun-java6-plugin
将系统虚拟机的优先顺序也调整一下:$sudo vi /etc/jvm
在文本编辑器里将下面一句写在最顶部:/usr/lib/jvm/java-6-sun
设置环境变量:sudo vi /etc/profile 加入
export JAVA_HOME=/usr/lib/jvm/java-6-sun
export CATALINA_HOME=/opt/tomcat
export CLASSPATH=.:$JAVA_HOME/lib:$CATALINA_HOME/lib
export PATH=$PATH:$CATALINA_HOME/bin
用java –version查看版本
配置Tomcat自动启动;在/etc/init.d下建立脚本tomcat
#!/bin/sh
#Tomcat auto-start
# description: Auto-starts tomcat
# processname: tomcat
# pidfile: /var/run/tomcat.pid
export JAVA_HOME=/usr/lib/jvm/java-6-sun
case $1 in
start)
        sh /opt/tomcat/bin/startup.sh
        ;;
stop)
        sh /opt/tomcat/bin/shutdown.sh
        ;;
restart)
        sh /opt/tomcat/bin/shutdown.sh
        sh /opt/tomcat/bin/startup.sh
        ;;
*)
        echo 'Usage:tomcat6 start|stop|restart'
        ;;
esac
exit 0
注意:需要把文件夹/opt/tomcat和/etc/init.d/tomcat改成777权限
然后安装apt-get install sysv-rc-conf 并 sysv-rc-conf tomcat on

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转载自sambafeng.iteye.com/blog/782896