Centos 7 安装tomcat并设置开机自启

叁歲伎倆 2022-10-23 03:58 285阅读 0赞

# 1.安装jdk8 #

使用下面的命令下载安装，注意生产环境不要高于8u202

wget https://mirrors.huaweicloud.com/java/jdk/8u202-b08/jdk-8u202-linux-x64.tar.gz
    cp jdk-8u202-linux-x64.tar.gz /usr/local/
    cd /usr/local/
    tar -zxvf jdk-8u202-linux-x64.tar.gz
    rm jdk-8u202-linux-x64.tar.gz

设置环境变量

编辑 /etc/profile，在最后添加

JAVA_HOME=/usr/local/jdk1.8.0_202
    JRE_HOME=/usr/local/jdk1.8.0_202/jre
    PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
    CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib

最后执行下面这个命令，使环境变量生效

source /etc/profile

验证

java -version
    javac -version

# 2.安装tomcat #

这里安装tomcat8.5.40

wget https://archive.apache.org/dist/tomcat/tomcat-8/v8.5.40/bin/apache-tomcat-8.5.40.tar.gz
    cp apache-tomcat-8.5.40.tar.gz /usr/local/
    cd /usr/local/
    tar -zxvf apache-tomcat-8.5.40.tar.gz
    rm apache-tomcat-8.5.40.tar.gz
    mv apache-tomcat-8.5.40 tomcat

配置systemclt启动服务

cd /usr/lib/systemd/system/
    nano tomcat.service

输入如下内容，然后Ctrl+X保存

[Unit]
    Description=tomcat
    After=network.target mysqld.service
    
    [Service]
    Type=oneshot
    ExecStart=/usr/local/tomcat/bin/startup.sh
    ExecStop=/usr/local/tomcat/bin/shutdown.sh
    ExecReload=/bin/kill -s HUP $MAINPID
    RemainAfterExit=yes
    
    [Install]
    WantedBy=multi-user.target

设置开机自启&启动&查看状态

systemctl enable tomcat.service 
    systemctl start tomcat.service 
    systemctl status tomcat.service

查看状态发现报错

startup.sh[23725]: Neither the JAVA_HOME nor the JRE_HOME environment variable is defined

是tomcat的JAVA\_HOME或者JRE\_HOME环境变量在tomcat里没配置

编辑$TOMCAT\_HOME/bin/catalina.sh或者$TOMCAT\_HOME/bin/catalina.shsetclasspath.sh 添加JAVA\_HOME和JRE\_HOME两个环境变量,内容如下

export JAVA_HOME=/usr/local/jdk1.8.0_202
    export JRE_HOME=/usr/local/jdk1.8.0_202/jre

之后就能正常启动了

# 3.tomcat改端口 #

$TOMCAT\_HOME/conf/server.xml

找到

<Connector port="8080"