Ubuntu 安装 jdk1.7,tomcat7

jdk-32:http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-i586.tar.gz

jdk-64:http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60-linux-x64.tar.gz

tomcat:http://mirrors.cnnic.cn/apache/tomcat/tomcat-7/v7.0.64/bin/apache-tomcat-7.0.64.tar.gz

-----------------------jdk安装----------------------

1.拷贝jdk到:/usr/lib/jvm

2.修改/etc/profile,添加

export JAVA_HOME=/usr/lib/jvm/jdk1.7

export JRE_HOME=${JAVA_HOME}/jre

export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib

export PATH=${JAVA_HOME}/bin:$PATH

3.默认jdk设置

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7/bin/java 300

sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.7/bin/javac 300

执行代码：sudo update-alternatives --config java

4.测试

java -version(显示下面3行说明安装成功),   --如果提示Permission denied，执行代码：chmod +x /usr/lib/jvm/jdk1.7/bin/java

java version "1.7.0_79"

Java(TM) SE Runtime Environment (build 1.7.0_79-b15)

Java HotSpot(TM) Client VM (build 24.79-b02, mixed mode)

-----------------------tomcat安装----------------------

1.修改bin目录下catalina.sh文件

找到 cygwin=false 在这一行代码上面添加：

JAVA_HOME=/usr/lib/jvm/jdk1.7
JAVA_OPTS="-server -Xms512m
-Xmx1024m -XX:PermSize=600M
-XX:MaxPermSize=600m
-Dcom.sun.management.jmxremote"

启动tomcat命令：sh startup.sh

(如果启动提示：Cannot find ./catalina.sh，那么执行：chmod +x bin/*.sh)