在开发/测试环境，日志是非常重要的。而公司对于测试环境进行了控制，只有配置人员能连接访问，而开发人员是无法获取该服务器的信息的。在出现错误时，没有异常日志，开发是很难重现问题的。因此需要对中间件 tomcat 进行配置，将日志放到某个目录下，开发人员可以通过浏览器就能查看日志。ok，开工：
目的 ： 能通过浏览器检查tomcat日志
方法 ：将 tomcat 的日志放置到 $CATALINA_HOME/webapps/ROOT/logs 下，用户就可以通过 http://xxx.xxx.xxx.xxx/logs/catalina.out 访问日志了。
1. 修改tomcat/conf下的logging.properties
# 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.
handlers
= 1catalina.org.apache.juli.FileHandler, 2localhost.org.apache.juli.FileHandler, 3manager.org.apache.juli.FileHandler, 4host-manager.org.apache.juli.FileHandler,
java.util.logging.ConsoleHandler
.handlers
= 1catalina.org.apache.juli.FileHandler,
java.util.logging.ConsoleHandler
############################################################
# Handler specific properties.
# Describes specific configuration info for Handlers.
############################################################
1catalina.org.apache.juli.FileHandler.level
=
FINE
1catalina.org.apache.juli.FileHandler.directory
=
${catalina.base}/webapps/ROOT/logs
1catalina.org.apache.juli.FileHandler.prefix
=
catalina.
2localhost.org.apache.juli.FileHandler.level
=
FINE
2localhost.org.apache.juli.FileHandler.directory
=
${catalina.base}/webapps/ROOT/logs
2localhost.org.apache.juli.FileHandler.prefix
=
localhost.
3manager.org.apache.juli.FileHandler.level
=
FINE
3manager.org.apache.juli.FileHandler.directory
=
${catalina.base}/webapps/ROOT/logs
3manager.org.apache.juli.FileHandler.prefix
=
manager.
4host-manager.org.apache.juli.FileHandler.level
=
FINE
4host-manager.org.apache.juli.FileHandler.directory
=
${catalina.base}/webapps/ROOT/logs
4host-manager.org.apache.juli.FileHandler.prefix
=
host-manager.
java.util.logging.ConsoleHandler.level
=
FINE
java.util.logging.ConsoleHandler.formatter
=
java.util.logging.SimpleFormatter
############################################################
# Facility specific properties.
# Provides extra control for each logger.
############################################################
org.apache.catalina.core.ContainerBase.
[
Catalina
]
.
[
localhost
]
.level =
INFO
org.apache.catalina.core.ContainerBase.
[
Catalina
]
.
[
localhost
]
.handlers =
2localhost.org.apache.juli.FileHandler
org.apache.catalina.core.ContainerBase.
[
Catalina
]
.
[
localhost
]
.
[
/manager
]
.level =
INFO
org.apache.catalina.core.ContainerBase.
[
Catalina
]
.
[
localhost
]
.
[
/manager
]
.handlers =
3manager.org.apache.juli.FileHandler
org.apache.catalina.core.ContainerBase.
[
Catalina
]
.
[
localhost
]
.
[
/host-manager
]
.level =
INFO
org.apache.catalina.core.ContainerBase.
[
Catalina
]
.
[
localhost
]
.
[
/host-manager
]
.handlers =
4host-manager.org.apache.juli.FileHandler
# For example
,
to log debug messages in ContextConfig and HostConfig
# classes and to log only warnings and errors in other
# org.apache.catalina.** classes
,
uncomment these lines:
#org.apache.catalina.startup.ContextConfig.level
=
FINE
#org.apache.catalina.startup.HostConfig.level
=
FINE
#org.apache.catalina.level
= WARNING
2. 修改tomcat/bin/catalina.sh
186 if [ -z "$CATALINA_OUT" ] ; then
187 CATALINA_OUT=
"$CATALINA_BASE"/webapps/ROOT/logs/catalina.out
188 fi
【注意】红色字体是需要修改的内容，修改为当前 tomcat 的最新的网站根目录即可。
3、重启 tomcat
4、使用浏览器即可查看日志： http://xxx.xxx.xxx.xxxx/logs/catalina.out
