16.3 安装Tomcat - 码农教程

安装Tomcat目录概要

cd /usr/local/src
wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.24/bin/apache-tomcat-8.5.24.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
ps aux|grep tomcat
netstat -lntp |grep java
三个端口8080为提供web服务的端口，8005为管理端口，8009端口为第三方服务调用的端口，比如httpd和Tomcat结合时会用到

安装Tomcat

tomcat虽然是jdk和java 的中间件，但是如果没有了它，就不能去监听8080端口或80端口，也无法让客户端或者浏览器去访问直接访问站点，tomcat就是一个java的webserver
tomcat依赖于jdk ，所以需要先安装jdk

切换到/ues/local/src/目录下

[root@hf-01 ~]# cd /usr/local/src
[root@hf-01 src]#

下载tomcat的安装包（二进制免编译包），命令 wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.24/bin/apache-tomcat-8.5.24.tar.gz

[root@hf-01 src]# wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.24/bin/apache-tomcat-8.5.24.tar.gz

解压包

[root@hf-01 src]# tar zxf apache-tomcat-8.5.24.tar.gz 
[root@hf-01 src]#

解压完之后，移动到/usr/local/目录下，并更改名字为tomcat

mv apache-tomcat-8.5.24 /usr/local/tomcat

[root@hf-01 src]# mv apache-tomcat-8.5.24 /usr/local/tomcat
[root@hf-01 src]#

启动tomcat，因为tomcat软件包下载的是二进制免编译包，不用去编译

/usr/local/tomcat/bin/startup.sh

[root@hf-01 src]# /usr/local/tomcat/bin/startup.sh  //这样就能把tomcat启动
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
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.
[root@hf-01 src]#

这时候可以grep查看是否有java的进程，若是有java这个进程，说明tomcat正常启动了

[root@hf-01 src]# ps aux |grep java
root      2800  2.5  8.6 2296760 87456 pts/0   Sl   13:02   0:04 /usr/local/jdk1.8/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 -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      2844  0.0  0.0 112680   976 pts/0    R+   13:05   0:00 grep --color=auto java
[root@hf-01 src]#

关闭tomcat的命令为/usr/local/romcat/bin/shutdown.sh ，tomcat不支持restart，若是更改了配置文件，需要去重新启动，先stop，然后start

/usr/local/tomcat/bin/shutdown.sh
关闭tomcat，再来查看进程，会看到tomcat已经关闭

[root@hf-01 src]# /usr/local/tomcat/bin/shutdown.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
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
[root@hf-01 src]# ps aux |grep java
root      2875  0.0  0.0 112680   972 pts/0    R+   13:09   0:00 grep --color=auto java
[root@hf-01 src]#

这时再启动tomcat

[root@hf-01 src]# /usr/local/tomcat/bin/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
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.
[root@hf-01 src]#

查看tomcat的监听端口，会看到的监听端口为8080端口和8009端口，还有一个8005端口

8080为提供web服务的端口，8005为管理端口，8009端口为第三方服务调用的端口，比如httpd和Tomcat结合时会用到
一般使用的是8080端口

[root@hf-01 src]# netstat -lntp |grep java
tcp6       0      0 :::8080                 :::*                    LISTEN      2893/java           
tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN      2893/java           
tcp6       0      0 :::8009                 :::*                    LISTEN      2893/java           
[root@hf-01 src]#

测试tomcat访问页面
关闭防火墙

关闭firlewalld
- systemctl stop firewalld
- systemctl disable firewalld

关闭防火墙
[root@hf-01 src]# systemctl stop firewalld
[root@hf-01 src]# systemctl disable firewalld
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[root@hf-01 src]# iptables -nvL
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
[root@hf-01 src]#

关闭防火墙之后，打开浏览器访问虚拟机的IP 加 8080端口，如 192.168.202.131:8080

打开如下的界面就是访问成功了