linux环境下配置jdk、tomcat等

一. 配置JDK

1. 下载jdk,这里下载的是linux64位的tar压缩包
   http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
2. 解压
   tar xzfv jdk-8u151-linux-x64.tar.gz
3. 设置环境变量
   vi /etc/profile

export JAVA_HOME=/usr/local/jdk1.8.0_151
export PATH=$PATH:${JAVA_HOME}/bin

4. 执行，刷新环境变量设置
   source /etc/profile
5. 验证
   java -version
   如果打印出版本信息，完成

二、设置tomcat

1. 下载tomcat
   https://tomcat.apache.org/download-70.cgi
2. 解压
   unzip apache-tomcat-7.0.82.zip
3. 设置环境变量
   vi /etc/profile

export CATALINA_HOME=/usr/local/apache-tomcat-7.0.82
export PATH=$PATH:${CATALINA_HOME}/bin

4. 执行，刷新环境变量设置
   source /etc/profile
5. 给.sh文件授予执行权限

cd /usr/local/apache-tomcat-7.0.82/bin
chmod u+x *.sh

5. 验证
   执行 startup.sh
   出现：

Using CATALINA_BASE:   /usr/local/apache-tomcat-7.0.82
Using CATALINA_HOME:   /usr/local/apache-tomcat-7.0.82
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-7.0.82/temp
Using JRE_HOME:        /usr/local/jdk1.8.0_151
Using CLASSPATH:       /usr/local/apache-tomcat-7.0.82/bin/bootstrap.jar:/usr/local/apache-tomcat-7.0.82/bin/tomcat-juli.jar
Tomcat started.
就成功了

三、配置nodejs

1. 下载6.10.1版本
   https://npm.taobao.org/mirrors/node/v6.10.1/
2. 解压
   tar xzfv node-v6.10.1-linux-x64.tar.gz
3. 配置环境变量

vi /etc/profile
export PATH=$PATH:/usr/local/node-v6.10.1-linux-x64/bin

4. 执行，刷新环境变量设置
   source /etc/profile
5. 验证

node -v
v6.10.1