Centos 7 java 安装 及 tomcat启动
运行tomcat 需要安装java环境：下载地址：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
下载了：jdk-8u144-linux-x64.rpm
卸载之前的openjdk
：rpm -qa | grep -E '^open|j'
：yum remove java-1.8.0-openjdk
：yum remove java-1.8.0-openjdk-headless
安装：rpm -ivh jdk-8u144-linux-x64.rpm
：环境变量export JAVA_HOME=/usr/java/default
tomcat daemon.sh 启动 操作步骤：
wget http://archive.apache.org/dist/tomcat/tomcat-8/v8.5.12/bin/apache-tomcat-8.5.12-deployer.tar.gz
tar -zxvf apache-tomcat-8.5.12-deployer.tar.gz
mv apache-tomcat-8.5.12-deployer /data/app/tomcat/
cd /data/app/tomcat/bin/
tar -zxvf commons-daemon-native.tar.gz
cd commons-daemon-1.0.15-native-src/unix
./configure
make
cp jsvc ../..
./daemon.sh start ok
系统启动 ：
cd /usr/lib/systemd/system
vim tomcat.service
Description=Tomcat
After=syslog.target network.target remote-fs.target nss-lookup.target
Type=forking
Environment=JAVA_HOME=/usr/java/default
ExecStart=/data/app/tomcat/bin/daemon.sh start
ExecStop=/data/app/tomcat/bin/daemon.sh stop
PrivateTmp=true
WantedBy=multi-user.targetsystemctl daemon-reload
systemctl enable tomcat.service
systemctl stop tomcat.service
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