Tomcat笔记之部署安装

版权声明：from 瑾川（fakehydra.xyz） https://blog.csdn.net/fake_hydra/article/details/83412694

什么是Tomcat服务

LNMP
LTMP

Java程序具有可以移植型，跨平台特性

简单jvm环境：jre --Java SE Runtime Environment 指Java运行环境，是Sun的产品
高级jvm环境：jdk --Java Development Kit Java开发工具包

安装部署Tomcat

部署jdk环境

配置Java环境变量

 [root@tomcat tools]# cat >>/etc/profile<<'EOF'
 > export JAVA_HOME=/application/jdk
 > export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
 > export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$JAVA_HOME/lib/tools.jar
 > EOF

 ‘EOF’作用：对$PATH不解析

调整权限

 [root@tomcat tools]# ll /application/jdk/
 总用量 25904
 src.zip
 drwxr-xr-x. 5 10 143      185 8月   5 2015 jre
 drwxr-xr-x. 5 10 143      245 8月   5 2015 lib
 -r--r--r--. 1 10 143       40 8月   5 2015 LICENSE

部分展示
属组属主不对

修改

 [root@tomcat tools]# chown -R root.root /application/jdk

安装完成，查看Java版本信息

 [root@tomcat tools]# java -version
 java version "1.8.0_60"
 Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
 Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

Tomcat安装

 [root@tomcat tools]# tar xf apache-tomcat-8.0.27.tar.gz -C /application/
 [root@tomcat tools]# ln -s /application/apache-tomcat-8.0.27/ /application/tomcat

配置环境变量

 [root@tomcat bin]# echo 'export TOMCAT_HOME=/application/tomcat'>>/etc/profile
 
 [root@tomcat bin]# pwd
 /application/tomcat/bin
 将bin目录放到变量，方便以后使用
 
 export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:/application/tomcat/bin

查看版本信息

 [root@tomcat bin]# version.sh 
 Using CATALINA_BASE:   /application/tomcat
 Using CATALINA_HOME:   /application/tomcat
 Using CATALINA_TMPDIR: /application/tomcat/temp
 Using JRE_HOME:        /application/jdk
 Using CLASSPATH:       /application/tomcat/bin/bootstrap.jar:/application/tomcat/bin/tomcat-juli.jar
 Server version: Apache Tomcat/8.0.27
 Server built:   Sep 28 2015 08:17:25 UTC
 Server number:  8.0.27.0
 OS Name:        Linux
 OS Version:     3.10.0-862.el7.x86_64
 Architecture:   amd64
 JVM Version:    1.8.0_60-b27
 JVM Vendor:     Oracle Corporation

启动

 [root@tomcat bin]# startup.sh 
 Using CATALINA_BASE:   /application/tomcat
 Using CATALINA_HOME:   /application/tomcat
 Using CATALINA_TMPDIR: /application/tomcat/temp
 Using JRE_HOME:        /application/jdk
 Using CLASSPATH:       /application/tomcat/bin/bootstrap.jar:/application/tomcat/bin/tomcat-juli.jar
 Tomcat started.

确认启动，查看端口

 [root@tomcat bin]# ss -lntup|grep java
 tcp    LISTEN     0      1      ::ffff:127.0.0.1:8005                 :::*                   users:(("java",pid=2856,fd=69))
 tcp    LISTEN     0      100      :::8009                 :::*                   users:(("java",pid=2856,fd=51))
 tcp    LISTEN     0      100      :::8080                 :::*                   users:(("java",pid=2856,fd=46))

关闭服务

 [root@tomcat conf]# shutdown.sh 
 Using CATALINA_BASE:   /application/tomcat
 Using CATALINA_HOME:   /application/tomcat
 Using CATALINA_TMPDIR: /application/tomcat/temp
 Using JRE_HOME:        /application/jdk
 Using CLASSPATH:       /application/tomcat/bin/bootstrap.jar:/application/tomcat/bin/tomcat-juli.jar

原理

 echo "SHUTDOWN" |nc 127.0.0.1 8005
 通过nc给端口8005发送一个shutdown的指令
 安全优化：修改改端口&指令