centos7 安裝Java和Tomcat

Java安裝

先到Java官網下載Java的sdk

http://www.oracle.com/technetwork/java/javase/downloads/index.html

下載後將Java包解壓到 /usr/local/java/ 目錄下

tar -zxvf jdk-10.0.1_linux-x63.tar.gz -C /usr/local/java/

把Java路勁寫到環境變量中

vim ~/etc/profile.d/java10.sh

export JAVA_HOME=/usr/local/java/jdk-10.0.1/
export PATH=$JAVA_HOME/bin:$PATH

source ~/etc/profile.d/java10.sh

使用 java -version 查看版本信息

java version "10.0.1" 2018-04-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)

這步有的jdk沒有內置jre，還需要單獨下載jre放到jdk的目錄下

Tomcat安裝

先下載Tomcat安裝包

curl -O http://mirrors.shu.edu.cn/apache/tomcat/tomcat-9/v9.0.8/bin/apache-tomcat-9.0.8.tar.gz

解壓到 /usr/local 目錄

tar xvf apache-tomcat-9.0.8.tar.gz -C /usr/local/

創建軟鏈接

ln -sv /usr/local/apache-tomcat-9.0.8 /usr/local/tomcat9

配置環境變量

vim /etc/profile.d/tomcat9.sh

export TOMCAT_HOME=/usr/local/tomcat9
export PATH=$TOMCAT_HOME/bin:$PATH

官方建議在tomcat安裝目錄的bin目錄下建一個setenv.sh,將JAVA_HOME,JRE_HOME等環境變量信息指定。示例如下：

cat bin/setenv.sh 

CATALINA_HOME=/usr/local/tomcat9
CATALINA_BASE=/usr/local/tomcat9
JAVA_HOME=/usr/local/java/jdk-10.0.1
JRE_HOME=/usr/local/java/jdk-10.0.1/jre/
CATALINA_PID=/usr/local/tomcat9/tomcat9.pid

配置Tomcat使用systemctl控制

vim /usr/lib/systemd/system/tomcat9.service

[Unit]
Description=Apache Tomcat 9
After=syslog.target network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
PIDFile=/usr/local/tomcat9/tomcat9.pid
ExecStart=/usr/local/tomcat9/bin/startup.sh
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target

systemctl start tomcat9

參考鏈接https://www.cnblogs.com/mfyang/p/8688800.html