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jdk下载: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
1. 安装rpm软件
rpm -ivh --prefix= /usr/local /home/PAS/xxx.rpm
2. 复制粘贴:yy, p
3. 删除:dd
4. 查找 /向后?向前, n继续查找
5. 查看linux 32位还是64位: getconf WORD_BIT
uname -a x86_64表示64位机器
6. 查看java版本: java -version
7. 配置jdk
export JAVA_HOME=/usr/local/jdk1.7.0_79 export PATH=$JAVA_HOME/bin:$PATH export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
生效: source /etc/profile
配置tomcat的jdk
/usr/local/tomcat/bin/setclasspath.sh
export JAVA_HOME=/usr/local/jdk1.7.0_79
export JRE_HOME=/usr/local/jdk1.7.0_79/jre
/usr/local/tomcat/bin/setclasspath.bat
set JAVA_HOME=/usr/local/jdk1.7.0_79
set JRE_HOME=/usr/local/jdk1.7.0_79/jre
/usr/local/tomcat/bin/catalina.sh
JAVA_HOME=/usr/local/jdk1.7.0_79
PATH=$JAVA_HOME/bin:$PATH
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
执行需进入到/usr/local/tomcat/bin/目录,然后sudo ./startup.sh
source /etc/profile //立即生效
8. 更改权限:chmod +x jdk-6u21-linux-x64.bin
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原文地址:http://www.cnblogs.com/wujixing/p/5822633.html