jdk+tomcat安装

安装jdk

 到/usr/local/src/目录下
 tar zxvf jdk-8u144-linux-x64.tar.gz
 mv jdk1.8.0_144 /usr/local/jdk1.8
 cd /usr/local/jdk1.8
 vi /etc/profile  #最后面增加
 JAVA_HOME=/usr/local/jdk1.8/
 JAVA_BIN=/usr/local/jdk1.8/bin
 JRE_HOME=/usr/local/jdk1.8/jre
 PATH=$PATH:/usr/local/jdk1.8/bin:/usr/local/jdk1.8/jre/bin 
 CLASSPATH=/usr/local/jdk1.8/jre/lib:/usr/local/jdk1.8/lib:/usr/local/jdk1.8/jre/lib/charsets.jar 
 source /etc/profile  #让它生效；通知当前shell读入路径为filename的文件并依次执行文件中的所有语句。
 java -version  #通过查看版本信息，检验是否生效

安装tomcat

cd /usr/local/src
wget http://apache.fayea.com/tomcat/tomcat-8/v8.5.20/bin/apache-tomcat-8.5.20.tar.gz
tar zxvf apache-tomcat-8.5.20.tar.gz
mv apache-tomcat-8.5.20 /usr/local/tomcat
/usr/local/tomcat/bin/startup.sh  #启动tomcat
ps aux|grep tomcat
netstat -lntp |grep java