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Tomcat 服务器是一个免费的开放源代码的Web 应用服务器,属于轻量级应用服务器,在中小型系统和并发访问用户不是很多的场合下被普遍使用,是开发和调试JSP 程序的首选。对于一个初学者来说,可以这样认为,当在一台机器上配置好Apache 服务器,可利用它响应HTML(标准通用标记语言下的一个应用)页面的访问请求。实际上Tomcat是Apache 服务器的扩展,但运行时它是独立运行的,所以当你运行tomcat 时,它实际上作为一个与Apache 独立的进程单独运行的。
Tomcat是一个免费的开源的Serlvet容器,用来运行java程序的容器
是开发和调试Servlet(Server Applet)、JSP(Java Server Pages) 程序的首选;
Tomcat就是传说中的中间件之一,tomcat本身是一个容器,专门用来运行java程序,java语言开发的网页.jsp就应该运行于tomcat中,而tomcat本身的运行也依赖于jdk环境。
一般本地开发的话,小项目,或者是个人开发建议使用tomcat;
linux系统建议使用jetty或apache hpppd;
大型的项目就用JBOSS或webloigc;
大项目或者商业项目一般采用:weblgoic/webshere,其他的还有jboss、glasshfish等;
一些示例项目或者小项目常采用jetty;
tomcat , jboss, weblogic, websphere 一般项目tomcat就可以了。
[root@tomcat ~]# systemctl status firewalld
○ firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; preset: enabled)
Active: inactive (dead)
Docs: man:firewalld(1)
[root@tomcat ~]# getenforce
Disabled
[root@tomcat ~]# yum -y install java-11-openjdk tar lrzsz chrony
[root@tomcat ~]# systemctl restart chronyd; systemctl enable chronyd; hwclock -w
[root@tomcat ~]# mkdir /opt/software
[root@tomcat ~]# cd /opt/software/
[root@tomcat software]# rz -E
rz waiting to receive.
[root@tomcat software]# ls
apache-tomcat-10.0.23.tar.gz
[root@tomcat software]# tar -zxvf apache-tomcat-10.0.23.tar.gz -C /usr/local/
[root@tomcat software]# cd /usr/local/
[root@tomcat local]# ln -s apache-tomcat-10.0.23/ tomcat
[root@tomcat local]# ls
apache-tomcat-10.0.23 bin etc games include lib lib64 libexec sbin share src tomcat
[root@tomcat local]# mkdir /usr/local/tomcat/webapps/test
[root@tomcat local]# cd /usr/local/tomcat/webapps/test/
[root@tomcat test]# vim index.jsp
//在该文件内写入
<html>
<head>
<title>test page</title>
</head>
<body>
<%
out.println("shiqian is bug");
%>
</body>
</html>
~
[root@tomcat test]# cd /usr/local/tomcat/bin/ [root@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 Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar Using CATALINA_OPTS: Tomcat started. //查看端口是否启动 [root@tomcat bin]# ss -nalt State Recv-Q Send-Q Local Address:Port Peer Address:Port Process LISTEN 0 128 0.0.0.0:22 0.0.0.0:* LISTEN 0 100 *:8080 *:* LISTEN 0 1 [::ffff:127.0.0.1]:8005 *:* LISTEN 0 128 [::]:22 [::]:* //查看进程是否启动 [root@tomcat bin]# ps -ef | grep tomcat root 2718 1 12 15:49 pts/0 00:00:02 /usr/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 2748 705 0 15:49 pts/0 00:00:00 grep --color=auto tomcat
查看自己配置的网页
[root@tomcat bin]# cd /usr/local/tomcat/conf/
[root@tomcat conf]# vim tomcat-users.xml
//在文件最后添加以下信息
<role rolename="admin-gui"/>
<user username="tomcat" password="123456" roles="admin-gui"/>
//先将服务给停掉
[root@tomcat conf]# kill -9 2718
[root@tomcat conf]# ps -ef | grep tomcat
root 2808 705 0 16:05 pts/0 00:00:00 grep --color=auto tomcat
添加的位置
注:password后面哪个<>要删掉,不然会登陆不了
[root@tomcat conf]# cd /usr/local/tomcat/webapps/host-manager/META-INF/
[root@tomcat META-INF]# vim context.xml
//在文件中找到这一行,添加修改
allow="192\.168\.100\.\d+|127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
//启动服务
[root@tomcat META-INF]# /usr/local/tomcat/bin/catalina.sh start
//查看是否启动成功
[root@tomcat META-INF]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 100 *:8080 *:*
LISTEN 0 1 [::ffff:127.0.0.1]:8005 *:*
LISTEN 0 128 [::]:22 [::]:*
[root@tomcat META-INF]# ps -ef | grep tomcat
root 2846 1 10 16:17 pts/0 00:00:02 /usr/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 2876 705 0 16:18 pts/0 00:00:00 grep --color=auto tomcat
//先把服务停掉 [root@tomcat ~]# /usr/local/tomcat/bin/catalina.sh stop [root@tomcat ~]# vim /usr/local/tomcat/conf/tomcat-users.xml //修改该文件以下信息 <role rolename="admin-gui"/> <role rolename="manager-gui"/> //添加的 <user username="tomcat" password="123456" roles="admin-gui,manager-gui"/> [root@tomcat ~]# vim /usr/local/tomcat/webapps/manager/META-INF/context.xml //找到修改这一行信息 allow="192\.168\.100\.\d+|127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" /> //启动服务 [root@tomcat ~]# /usr/local/tomcat/bin/catalina.sh start [root@tomcat ~]# ss -anlt State Recv-Q Send-Q Local Address:Port Peer Address:Port Process LISTEN 0 128 0.0.0.0:22 0.0.0.0:* LISTEN 0 100 *:8080 *:* LISTEN 0 1 [::ffff:127.0.0.1]:8005 *:* LISTEN 0 128 [::]:22 [::]:* [root@tomcat ~]# ps -ef | grep tomcat root 3201 1 6 16:39 pts/0 00:00:02 /usr/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 3231 705 0 16:39 pts/0 00:00:00 grep --color=auto tomcat
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