tomcat
Tomcat
Tomcat是Apache 软件基金会（Apache Software Foundation）的Jakarta 项目中的一个核心项目，由Apache、Sun 和其他一些公司及个人共同开发而成。由于有了Sun 的参与和支持，最新的Servlet 和JSP 规范总是能在Tomcat 中得到体现，Tomcat 5支持最新的Servlet 2.4 和JSP 2.0 规范。
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。
诀窍是，当配置正确时，Apache 为HTML页面服务，而Tomcat 实际上运行JSP 页面和Servlet。另外，Tomcat和IIS等Web服务器一样，具有处理HTML页面的功能，另外它还是一个Servlet和JSP容器，独立的Servlet容器是Tomcat的默认模式。不过，Tomcat处理静态HTML的能力不如Apache服务器。
1. 安装JDK
在oracel官网下载jdk并安装
#首先安装gcc
[root@localhost ~]# yum -y install gcc
#安装openjdk1.8或者安装指定版本
`yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel`
#安装指定版本：
#将软件包上传、解压、并移至指定位置
[root@localhost ~]# ls
anaconda-ks.cfg jdk-14.0.2_linux-x64_bin.tar.gz
[root@localhost ~]# tar xf jdk-14.0.2_linux-x64_bin.tar.gz
[root@localhost ~]# ls
anaconda-ks.cfg jdk-14.0.2 jdk-14.0.2_linux-x64_bin.tar.gz
[root@localhost ~]# cp -r jdk-14.0.2 /usr/local/jdk14.0
#配置JD看环境变量
export JAVA_HOME=/usr/local/jdk14.0
export JAVA_BIN=/usr/local/jdk14.0/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
#查看java是否安装成功
[root@localhost ~]# java -version
java version "14.0.2" 2020-07-14
Java(TM) SE Runtime Environment (build 14.0.2+12-46)
Java HotSpot(TM) 64-Bit Server VM (build 14.0.2+12-46, mixed mode, sharing)
2. 安装tomcat
在官网上下载tomcat
#下载tomcat
[root@localhost ~]# wget https://archive.apache.org/dist/tomcat/tomcat-9/v9.0.37/bin/apache-tomcat-9.0.37.tar.gz
[root@localhost ~]# tar xf apache-tomcat-9.0.37.tar.gz
[root@localhost ~]# mv apache-tomcat-9.0.37 /usr/local/tomcat
#启动tomcat
[root@localhost ~]# /usr/local/tomcat/bin/catalina.sh start
Using CATALINA_BASE: /usr/local/tomcat
Using CATALINA_HOME: /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME: /usr/local/jdk14.0
Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.
[root@localhost ~]# ss -tanl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 [::1]:25 [::]:*
LISTEN 0 1 [::ffff:127.0.0.1]:8005 [::]:*
LISTEN 0 100 [::]:8080 [::]:*
LISTEN 0 128 [::]:22 [::]:*
3. 配置管理页面
#配置用户
[root@localhost ~]# vim /usr/local/tomcat/conf/tomcat-users.xml
#加上下面三行
<role rolename="manager-gui"/>
<role rolename="admin-gui"/>
<user username="tomcat" password="123456" roles="manager-gui,admin-gui"/>
</tomcat-users>
#配置manager访问来源
[root@localhost ~]# vim /usr/local/tomcat/webapps/manager/META-INF/context.xml
#找到
allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
#修改为192.168.32网段能访问
allow="192\.168\.32\.\d+|127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
#配置host manager访问来源
[root@localhost ~]# vim /usr/local/tomcat/webapps/host-manager/META-INF/context.xml
#找到
allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
#修改为192.168.32网段能访问
allow="192\.168\.32\.\d+|127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
#重启tomcat
[root@localhost ~]# /usr/local/tomcat/bin/catalina.sh stop
Using CATALINA_BASE: /usr/local/tomcat
Using CATALINA_HOME: /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME: /usr/local/jdk14.0
Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
NOTE: Picked up JDK_JAVA_OPTIONS: --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
[root@localhost ~]# /usr/local/tomcat/bin/catalina.sh start
Using CATALINA_BASE: /usr/local/tomcat
Using CATALINA_HOME: /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME: /usr/local/jdk14.0
Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.
[root@localhost ~]# ss -tanl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 [::1]:25 [::]:*
LISTEN 0 1 [::ffff:127.0.0.1]:8005 [::]:*
LISTEN 0 100 [::]:8080 [::]:*
LISTEN 0 128 [::]:22 [::]:*
