Tomcat监听80端口、配置Tomcat虚拟主机、Tomcat日志
配置Tomcat监听80端口1.配置Tomcat服务的访问端口
Tomcat默认启动的端口是8080,如果你想修改为80,则需要修改server.xml文件。
# vim /usr/local/tomcat/conf/server.xml
按如下需求更改：
找到Connector port="8080" protocol="HTTP/1.1"修改为Connector port="80" protocol="HTTP/1.1"
# /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
# /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.
# ps aux |grep java
root 21382 15.68.1 2294080 81052 pts/1 Sl 17:17 0:05 /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 214260.00.0 112680 972 pts/1 R+ 17:18 0:00 grep --color=auto java
# netstat -lntp |grep java
tcp6 0 0 :::80 :::* LISTEN 21382/java
tcp6 0 0 127.0.0.1:8005 :::* LISTEN 21382/java
tcp6 0 0 :::8009 :::* LISTEN 21382/java
配置Tomcat的虚拟主机
1.介绍Tomcat虚拟主机的概念
打开配置文件/usr/local/tomcat/conf/server.xml查看它的结构
其中和之间的配置为虚拟主机配置部分，name定义域名，
appBase定义应用的目录，Java的应用通常是一个war的压缩包，你只需要将war的压缩包放到appBase目录下面即可。
之前浏览器访问的默认页其实就是在appBase目录下面，不过是在它子目录ROOT里：
# cd /usr/local/tomcat/webapps/
# ls ROOT
asf-logo-wide.svgbg-middle.png bg-nav.png favicon.icoRELEASE-NOTES.txttomcat.giftomcat-power.gifWEB-INF
bg-button.png bg-nav-item.pngbg-upper.pngindex.jsp tomcat.css tomcat.pngtomcat.svg
其中index.jsp就是Tomcat的默认页面，你也可以用curl命令来访问一下tomcat.gif图片：
# curl localhost:8080/tomcat.gif -I
HTTP/1.1 200
Accept-Ranges: bytes
ETag: W/"2066-1511789494000"
Last-Modified: Mon, 27 Nov 2017 13:31:34 GMT
Content-Type: image/gif
Content-Length: 2066
Date: Thu, 18 Jan 2018 07:36:57 GMT
2.增加一个虚拟主机
# vim /usr/local/tomcat/conf/server.xml
增加如下配置内容：
//docBase，这个参数用来定义网站的文件存放路径，如果不定义，
默认是在appBase/ROOT下面，定义了docBase就以该目录为主了，
其中appBase和docBase可以一样。在这一步操作过程中很多同学遇到过访问404的问题，其实就是docBase没有定义对。
//appBase为应用存放目录，通常是需要把war包直接放到该目录下面，它会自动解压成一个程序目录
示例如图：
举例说明：
下面我们通过部署一个java的应用来体会appBase和docBase目录的作用
1.下载zrlog，建立一个博客测试
# wget http://dl.zrlog.com/release/zrlog-1.7.1-baaecb9-release.war//下载zrlog
# mv zrlog-1.7.1-baaecb9-release.war /usr/local/tomcat/webapps/
# mv /usr/local/tomcat/webapps/zrlog-1.7.1-baaecb9-release /usr/local/tomcat/webapps/zrlog
# ls
docsexampleshost-managermanagerROOTzrlogzrlog-1.7.1-baaecb9-releasezrlog-1.7.1-baaecb9-release.war
浏览器访问 ip:8080/zrlog
2.数据库配置
# ps aux |grep mysql
root 32370.00.1 1132681364 ? S 1月12 0:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/data/mysql --pid-file=/data/mysql/gary-tao.pid
mysql 33730.0 45.3 1301004 453000 ? Sl 1月12 3:17 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/data/mysql/gary-tao.err --pid-file=/data/mysql/gary-tao.pid --socket=/tmp/mysql.sock
root 238280.00.0 112680 976 pts/1 R+ 11:23 0:00 grep --color=auto mysql
# mysql -uroot -pszyino-123
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.Commands end with ; or \g.
Your MySQL connection id is 46
Server version: 5.6.35 MySQL Community Server (GPL)
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create database zrlog;//创建一个数据库
Query OK, 1 row affected (0.00 sec)
mysql> grant all on zrlog.* to 'zrlog'@127.0.0.1 identified by 'szyino-123';//创建一个用户
Query OK, 0 rows affected (0.01 sec)
mysql> quit
Bye
# mysql -uzrlog -h127.0.0.1 -pszyino-123
//检测创建用户是否可以连接
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.Commands end with ; or \g.
Your MySQL connection id is 47
Server version: 5.6.35 MySQL Community Server (GPL)
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| test |
| zrlog |
+--------------------+
3 rows in set (0.00 sec)
3.配置zrlog安装
第一步填写数库信息（在浏览器中保存密码)
第二步填写网站信息（在浏览器中保存密码)
第三步完成后点击查看
4.去掉浏览器访问时输入的目录名
# mkdir /data/wwwroot/123.cn
# mv /usr/local/tomcat/webapps/zrlog/* /data/wwwroot/123.cn/
# /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
# /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.
# !net
netstat -lntp |grep java
tcp6 0 0 :::80 :::* LISTEN 24437/java
tcp6 0 0 127.0.0.1:55089 :::* LISTEN 24457/java
tcp6 0 0 127.0.0.1:45089 :::* LISTEN 24457/java
tcp6 0 0 127.0.0.1:25089 :::* LISTEN 24457/java
tcp6 0 0 127.0.0.1:8005 :::* LISTEN 24437/java
tcp6 0 0 :::8009 :::* LISTEN 24437/java
# netstat -lntp |grep 80
tcp6 0 0 :::80 :::* LISTEN 24437/java
tcp6 0 0 127.0.0.1:8005 :::* LISTEN 24437/java
tcp6 0 0 :::8009 :::* LISTEN 24437/java
本地浏览器测试
[*]添加绑定本地hosts文件,如172.16.111.100 www.123.cn
[*]打开本机cmd，ping www.123.cn 是否通信，如下图：
[*]浏览器访问，正常。
Tomcat日志
Tomcat的日志目录为/usr/local/tomcat/logs，主要有四大类日志：
# ls /usr/local/tomcat/logs
catalina.2018-01-17.loghost-manager.2018-01-17.loglocalhost.2018-01-18.log manager.2018-01-17.log
catalina.2018-01-18.loghost-manager.2018-01-18.loglocalhost_access_log.2018-01-17.txtmanager.2018-01-18.log
catalina.out localhost.2018-01-17.log localhost_access_log.2018-01-18.txt
解释说明：
[*]其中catalina开头的日志为Tomcat的综合日志，它记录Tomcat服务相关信息，也会记录错误日志。
[*]其中catalina.2017-xx-xx.log和catalina.out内容相同，前者会每天生成一个新的日志。
[*]host-manager和manager为管理相关的日志，其中host-manager为虚拟主机的管理日志。
[*]localhost和localhost_access为虚拟主机相关日志，其中带access字样的日志为访问日志，不带access字样的为默认虚拟主机的错误日志。
注意：
访问日志默认不会生成，需要在/usr/local/tomcat/conf/server.xml中配置一下，具体方法是在对应虚拟主机的里面加入下面的配置（假如域名为123.cn）：
示例图如下：
[*]prefix定义访问日志的前缀;
[*]suffix定义日志的后缀;
[*]pattern定义日志格式。
[*]新增加的虚拟主机默认并不会生成类似默认虚拟主机的那个localhost.日期.log日志，错误日志会统一记录到catalina.out中。
备注：关于Tomcat日志，你最需要关注catalina.out，当出现问题时，我们应该第一想到去查看它。
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