一、jdk的安装部署
1.下载jdk官网
https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html
2.下载之后 上传到虚拟机中,进行解压
[root@xjm opt]# tar -zxvf jdk-8u301-linux-x64.tar.gz
3.重命名
mv jdk-8u301 /usr/local/jdk1.8
4.修改配置文件,添加环境变量
cd /usr/local/jdk1.8
vi /etc/profile
添加这些环境变量
export JAVA_HOME=/usr/local/jdk1.8
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPA
TH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH
5.加载配置
[root@xjm etc]# source /etc/profile
6.测试是否jdk安装成功
[root@xjm etc]# java -version
java version "16.0.2" 2021-07-20
Java(TM) SE Runtime Environment (build 16.0.2+7-67)
Java HotSpot(TM) 64-Bit Server VM (build 16.0.2+7-67, mixed mode, sharing)
二、tomcat环境部署安装
Tomcat:是一个开源免费的web应用服务器,性能稳定,是目前比较流行的web应用服务器
1.tomcat的下载网址
https://tomcat.apache.org/download-90.cgi
2.解压并重命名
[root@xjm opt]# tar -zxvf apache-tomcat-9.0.52.tar.gz
omcat-9.0.52.tar.gz
[root@xjm opt]# mv apache-tomcat-9.0.52 /usr/local/tomcat
3.进入/usr/local/jdk1.8/bin
把tomcat开启
[root@xjm bin]# sh startup.sh
Using CATALINA_BASE: /usr/local/tomcat
Using CATALINA_HOME: /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME: /usr/local/jdk1.8/jre
Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Using CATALINA_OPTS:
Tomcat started.
4.查看监听端口
[root@xjm tomcat]# ps -ef | grep tomcat
root 2182 1 0 21:31 pts/0 00:00:07 /usr/local/jdk1.8/jre/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Dignore.endorsed.dirs= -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start
root 2284 1449 0 21:49 pts/0 00:00:00 grep --color=auto tomcat
[root@xjm tomcat]#
[root@xjm tomcat]# netstat -tunlp | grep 2182
tcp6 0 0 127.0.0.1:8005 :::* LISTEN 2182/java
tcp6 0 0 :::8080 :::* LISTEN 2182/java
[root@xjm tomcat]#
5.关闭防火墙
systemctl stop firewalld