目录
localhost_access_log.Y-M-D.txt
Tomcat 的logs ⽬录
Tomcat ⽇志⽬录，包括服务器⽇志、 HTTP 访问⽇志、 Web 应⽤⽇志
- 服务器⽇志- catalina.out : 当前⽇志输出⽂件; catalina.${date}.log : 包含归档的⽇志⽂件
- HTTP 访问⽇志 - localhost_access_log.${date}.txt
- Web 应⽤⽇志 - localhost.${date}.log
一般的web服务器有两部分日志：
一是运行中的日志catalina.out，它主要记录运行的一些信息，尤其是一些异常错误日志信息。二是访问日志信息access.`date +%F`.log，它记录的访问的时间，IP，访问的资料等相关信息。
日志类别
localhost.Y-M-D.log
经常用到的文件之一 ，程序异常没有被捕获的时候抛出的地方Tomcat下内部代码丢出的日志（jsp页面内部错误的异常，org.apache.jasper.runtime.HttpJspBase.service类丢出的，日志信息就在该文件！）应用初始化(listener, filter, servlet)未处理的异常最后被tomcat捕获而输出的日志，而这些未处理异常最终会导致应用无法启动。
catalina.out
catalina.out其实是tomcat的标准输出(stdout)和标准出错(stderr)，这是在tomcat的启动脚本里指定的，如果没有修改的话stdout和stderr会重定向到这里。所以我们在应用里使用System.out打印的东西都会到这里来。另外，如果我们在应用里使用其他的日志框架，配置了向Console输出的，则也会在这里出现。比如以logback为例，如果配置ch.qos.logback.core.ConsoleAppender则会输出到catalina.out里。
catalina.Y-M-D.log
是tomcat自己运行的一些日志，这些日志还会输出到catalina.out，但是应用向console输出的日志不会输出到catalina.{yyyy-MM-dd}.log
manager.Y-M-D.log
管理的日志
host-manager.Y-M-D.log
虚拟主机方面
localhost_access_log.Y-M-D.txt
tomcat访问日志记录，需要配置
日志的级别
SEVERE (highest value) > WARNING > INFO > CONFIG > FINE > FINER > FINEST (lowest value)
日志级别的设置
修改 conf/logging.properties 中的内容，设定某类日志的级别
设置 catalina 日志的级别为： FINE
1catalina.org.apache.juli.FileHandler.level = FINE
禁用 catalina 日志的输出：
1catalina.org.apache.juli.FileHandler.level = OFF
catalina 所有的日志消息均输出：
1catalina.org.apache.juli.FileHandler.level = ALL
logging.properties 配置详解
# Licensed to the Apache Software Foundation (ASF) under one or more# contributor license agreements. See the NOTICE file distributed with# this work for additional information regarding copyright ownership.# The ASF licenses this file to You under the Apache License, Version 2.0# (the "License"); you may not use this file except in compliance with# the License. You may obtain a copy of the License at## http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable law or agreed to in writing, software# distributed under the License is distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.# See the License for the specific language governing permissions and# limitations under the License.- #可配置项(5类日志)：catalina、localhost、manager、admin、host-manager
handlers = 1catalina.org.apache.juli.AsyncFileHandler, 2localhost.org.apache.juli.AsyncFileHandler, 3manager.org.apache.juli.AsyncFileHandler, 4host-manager.org.apache.juli.AsyncFileHandler, java.util.logging.ConsoleHandler.handlers = 1catalina.org.apache.juli.AsyncFileHandler, java.util.logging.ConsoleHandler############################################################# Handler specific properties.# Describes specific configuration info for Handlers.############################################################
1. #日志输出级别：SEVERE (最高级别) > WARNING > INFO > CONFIG > FINE > FINER(精心) > FINEST (所有内容,最低级别) 2. #配置文件使catalina日志输出级别为FINE
1catalina.org.apache.juli.AsyncFileHandler.level = FINE- #catalina文件输出位置
1catalina.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs- #catalina日志前缀为catalina
1catalina.org.apache.juli.AsyncFileHandler.prefix = catalina.
#配置文件使localhost日志输出级别为FINE
2localhost.org.apache.juli.AsyncFileHandler.level = FINE- #localhost文件输出位置
2localhost.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs- #localhost日志前缀为localhost
2localhost.org.apache.juli.AsyncFileHandler.prefix = localhost.
#配置文件使manager日志输出级别为FINE
3manager.org.apache.juli.AsyncFileHandler.level = FINE- #manager文件输出位置
3manager.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs- #manager日志前缀为manager
3manager.org.apache.juli.AsyncFileHandler.prefix = manager.
#配置文件使host-manager日志输出级别为FINE
4host-manager.org.apache.juli.AsyncFileHandler.level = FINE- #host-manager文件输出位置
4host-manager.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs- #host-manager日志前缀为host-manager
4host-manager.org.apache.juli.AsyncFileHandler.prefix = host-manager.
#配置文件使控制台日志输出级别为FINE
java.util.logging.ConsoleHandler.level = FINE- #控制台日志输出格式
java.util.logging.ConsoleHandler.formatter = org.apache.juli.OneLineFormatter############################################################# Facility specific properties.# Provides extra control for each logger.############################################################
#localhost日志文件输出级别为INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].level = INFO- #localhost日志文件输出处理类2localhost.org.apache.juli.FileHandler
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].handlers = 2localhost.org.apache.juli.AsyncFileHandler
#manager日志文件输出级别为INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager].level = INFO- #manager日志文件输出处理类3manager.org.apache.juli.FileHandler
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager].handlers = 3manager.org.apache.juli.AsyncFileHandler
#host-manager日志文件输出级别为INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager].level = INFO- #host-manager日志文件输出处理类4host-manager.org.apache.juli.FileHandler
- org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager].handlers = 4host-manager.org.apache.juli.AsyncFileHandler
# For example, set the org.apache.catalina.util.LifecycleBase logger to log# each component that extends LifecycleBase changing state:#org.apache.catalina.util.LifecycleBase.level = FINE# To see debug messages in TldLocationsCache, uncomment the following line:#org.apache.jasper.compiler.TldLocationsCache.level = FINE
