ubuntu下java和tomcat安装配置

1. oracle下载jdk-7u51-linux-i586.tar.gz
2. sudo cp Downloads/jdk-7u51-linux-i586.tar.gz /usr/local/java //拷贝
   sudo tar -zxvf jdk-7u51-linux-i586.tar.gz//解压

3. sudo vim ~/.bashrc
   export JAVA_HOME="/usr/local/java/jdk1.7.0_79"
   export JAVA="/usr/local/java/jdk1.7.0_79"
   export JRE_HOME="/usr/local/java/jdk1.7.0_79"
   export CLASSPATH=.:\(JAVA_HOME/lib:\)JRE_HOME/lib
   export PATH=\(JAVA_HOME/bin:/sbin:\)PATH
   source ~/.bashrc

4. sudo mkdir /usr/local/tomcat //这个看自己，按理说在哪个目录下都是可以的，本人推荐这个
   sudo cp ~/Downloads/apache-tomcat-6.0.39.tar.gz /usr/local/tomcat//将刚下载的复制或者移动到制定目录下
   sudo tar -zxvf apache-tomcat-6.0.39.tar.gz //解压
   //接下来就是配置了
   cd apache-tomcat-6.0.39/bin //进入到这个目录里面
   sudo vim setclasspath.sh //在文件头加上JAVA_HOME环境变量就行了
   export JAVA_HOME=/usr/local/java/jdk1.7.0_79
   export JRE_HOME=/usr/local/java/jdk1.7.0_79

5.sudo ./startup.sh