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tomcat的文件结构和组成

目录结构
目录 说明
bin 服务启动、停止等相关
conf 配置文件
lib 库目录
logs 日志目录
webapps 应用程序,应用部署目录
work jsp编译后的结果文件,建议提前预热访问

范例:查看tomcat相关目录和文件

[root@centos8 tomcat]#pwd
/usr/local/tomcat
[root@centos8 tomcat]#ls
bin           conf             lib      logs    README.md      RUNNING.txt  webapps
BUILDING.txt  CONTRIBUTING.md  LICENSE  NOTICE  RELEASE-NOTES  temp         work
[root@centos8 tomcat]#ls bin
bootstrap.jar       ciphers.sh                    daemon.sh         shutdown.bat     tomcat-native.tar.gz
catalina.bat        commons-daemon.jar            digest.bat        shutdown.sh      tool-wrapper.bat
catalina.sh         commons-daemon-native.tar.gz  digest.sh         startup.bat      tool-wrapper.sh
catalina-tasks.xml  configtest.bat                setclasspath.bat  startup.sh       version.bat
ciphers.bat         configtest.sh                 setclasspath.sh   tomcat-juli.jar  version.sh
[root@centos8 tomcat]#ls conf
Catalina             context.xml           logging.properties  tomcat-users.xml
catalina.policy      jaspic-providers.xml  server.xml          tomcat-users.xsd
catalina.properties  jaspic-providers.xsd  tomcat.conf         web.xml
[root@centos8 tomcat]#ls lib
annotations-api.jar       ecj-4.6.3.jar   servlet-api.jar     tomcat-i18n-fr.jar     tomcat-jni.jar
catalina-ant.jar          el-api.jar      tomcat-api.jar      tomcat-i18n-ja.jar     tomcat-util.jar
catalina-ha.jar           jasper-el.jar   tomcat-coyote.jar   tomcat-i18n-ko.jar     tomcat-util-scan.jar
catalina.jar              jasper.jar      tomcat-dbcp.jar     tomcat-i18n-ru.jar     tomcat-websocket.jar
catalina-storeconfig.jar  jaspic-api.jar  tomcat-i18n-de.jar  tomcat-i18n-zh-CN.jar  websocket-api.jar
catalina-tribes.jar       jsp-api.jar     tomcat-i18n-es.jar  tomcat-jdbc.jar
[root@centos8 tomcat]#ls logs
catalina.2020-02-09.log  host-manager.2020-02-09.log  localhost_access_log.2020-02-09.txt
catalina.out             localhost.2020-02-09.log     manager.2020-02-09.log
[root@centos8 tomcat]#ls webapps/
docs  examples  host-manager  manager  ROOT
[root@centos8 tomcat]#ls work/
Catalina
[root@centos8 tomcat]#ls work/Catalina/
localhost
[root@centos8 tomcat]#ls work/Catalina/localhost/
docs  examples  host-manager  manager  ROOT
[root@centos8 tomcat]#ll -i work/Catalina/localhost/
total 0
 68039883 drwxr-x--- 2 tomcat tomcat 6 Feb  9 11:02 docs
135579640 drwxr-x--- 2 tomcat tomcat 6 Feb  9 11:02 examples
202681358 drwxr-x--- 2 tomcat tomcat 6 Feb  9 11:02 host-manager
   571365 drwxr-x--- 2 tomcat tomcat 6 Feb  9 11:02 manager
   571364 drwxr-x--- 2 tomcat tomcat 6 Feb  9 11:02 ROOT
[root@centos8 tomcat]#ll -i webapps/
total 4
202681088 drwxr-x--- 15 tomcat tomcat 4096 Feb  9 11:02 docs
202681094 drwxr-x---  6 tomcat tomcat   83 Feb  9 11:02 examples
   571165 drwxr-x---  5 tomcat tomcat   87 Feb  9 11:02 host-manager
 68039687 drwxr-x---  5 tomcat tomcat  103 Feb  9 11:02 manager
 68039663 drwxr-x---  3 tomcat tomcat  283 Feb  9 11:02 ROOT
[root@centos8 tomcat]#tree work/Catalina/localhost/
work/Catalina/localhost/
├── docs
├── examples
├── host-manager
├── manager
└── ROOT

5 directories, 0 files

[root@centos8 tomcat]#curl http://10.0.0.8:8080/
#当访问过后,work目录中生成新文件
[root@centos8 tomcat]#tree work/Catalina/localhost/
work/Catalina/localhost/
├── docs
├── examples
├── host-manager
├── manager
└── ROOT
    └── org
        └── apache
            └── jsp
                ├── index_jsp.class
                └── index_jsp.java

8 directories, 2 files

#tomcat会自动的将jsp文件生成java源文件,再编译成功class文件
[root@centos8 tomcat]#less work/Catalina/localhost/ROOT/org/apache/jsp/index_jsp.java
/*
 * Generated by the Jasper component of Apache Tomcat
 * Version: Apache Tomcat/8.5.50
 * Generated at: 2020-02-09 03:20:20 UTC
 * Note: The last modified time of this file was set to
 *       the last modified time of the source file after
 *       generation to assist with modification tracking.
 */
package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;

public final class index_jsp extends org.apache.jasper.runtime.HttpJspBase
    implements org.apache.jasper.runtime.JspSourceDependent,
                 org.apache.jasper.runtime.JspSourceImports {

  private static final javax.servlet.jsp.JspFactory _jspxFactory =
          javax.servlet.jsp.JspFactory.getDefaultFactory();

  private static java.util.Map<java.lang.String,java.lang.Long> _jspx_dependants;
配置文件

官方帮助文档:http://tomcat.apache.org/tomcat-8.5-doc/index.html

在tomcat安装目录下的conf子目录中,有以下的tomcat的配置文件

文件名 说明
server.xml 主配置文件
web.xml 每个webapp只有“部署”后才能被访问,它的部署方式通常由web.xml进行定义,其存放位置为WEB-INF/目录中;此文件为所有的webapps提供默认部署相关的配置
context.xml 用于定义所有web应用均需加载的Context配置,此文件为所有的webapps提供默认配置,每个web应用也可以使用自已专用的配置,它通常由专用的配置文件context.xml来定义,其存放位置为WEB-INF/目录中
tomcat-users.xml 用户认证的账号和密码文件
catalina.policy 当使用security选项启动tomcat时,用于为tomcat设置安全策略
catalina.properties Tomcat 环境变量的配置,用于设定类加载器路径,以及一些与JVM调优相关参数
logging.properties Tomcat 日志系统相关的配置,可以修改日志级别和日志路径等

注意:配置文件大小写敏感

范例:查看配置文件

[root@centos8 conf]#pwd
/usr/local/tomcat/conf
[root@centos8 conf]#ls
Catalina             context.xml           logging.properties  tomcat-users.xml
catalina.policy      jaspic-providers.xml  server.xml          tomcat-users.xsd
catalina.properties  jaspic-providers.xsd  tomcat.conf         web.xml
[root@centos8 conf]#wc -l server.xml web.xml context.xml tomcat-users.xml  catalina.policy  catalina.properties  logging.properties 
   167 server.xml
  4726 web.xml
    30 context.xml
    44 tomcat-users.xml
   271 catalina.policy
   214 catalina.properties
    75 logging.properties
  5527 total
[root@centos8 conf]#

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实战案例: 一键安装tomcat脚本

tomcat组件

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