目录
- Springboot logback-spring.xml无法加载
- 现象
- 原因分析
- 解决方案
- springboot logback-spring.xml 配置, 使用不同配置文件中的配置
- application.yml
- application-dev.yml
- application-prod.yml
- logback-spring.xml
- 从application-xxx.yml 中拿配置
- 总结
Springboot logback-spring.xml无法加载
现象
SpringBoot项目，启动后，日志文件没有出现在logback-spring.xml指定的目录下
且启动日志开头如下：
"C:\Program Files\Java\jdk1.8.0_144\bin\java"…
Connected to the target VM, address: '127.0.0.1:52494', transport: 'socket'
18:34:58,011 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback-test.xml]
18:34:58,011 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback.groovy]
18:34:58,011 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Found resource [logback.xml] at [jar:file:/D:/mvn_repo/xxx-1.0.2.jar!/logback.xml]
18:34:58,014 |-INFO in ch.qos.logback.core.joran.spi.ConfigurationWatchList@707194ba – URL [jar:file:/D:/mvn_repo/yyy-1.0.2.jar!/logback.xml] is not of type file
18:34:58,112 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction – Will scan for changes in [jar:file:/D:/mvn_repo/zzz-1.0.2.jar!/logback.xml]
logback-spring.xml文件一直未改动过，如下：
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO">
<springProperty scope="context" name="logPath" source="log.path"/>
<springProperty scope="context" name="logLevel" source="log.level"/>
<appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} %line - %msg%n</pattern>
</layout>
</appender>
<appender name="fileLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!--滚动策略-->
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--输出路径-->
<fileNamePattern>${logPath}/server.%d.log</fileNamePattern>
</rollingPolicy>
<encoder>
<pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} %line - %msg%n</pattern>
<charset>UTF-8</charset>
</encoder>
</appender>
<appender name="fileErrorLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<!--滚动策略-->
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--输出路径-->
<fileNamePattern>${logPath}/server.%d.error</fileNamePattern>
</rollingPolicy>
<encoder>
<pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} %line - %msg%n</pattern>
<charset>UTF-8</charset>
</encoder>
</appender>
<root level="${logLevel}">
<appender-ref ref="consoleLog"/>
<appender-ref ref="fileLog"/>
<appender-ref ref="fileErrorLog"/>
</root>
</Configuration>
原因分析
1.配置文件位置正确
classes/ ├── application.properties ├── com │ └── nero │ └── test │ ├── api │ │ ├── Api.class
2.分析启动日志，分析可能是依赖的jar中有logback.xml配置，冲突导致的问题
解决方案
在application.properties中加入配置：
logging.config=classpath:logback-spring.xml
通过该配置，强制指定日志的配置文件，问题得以解决
springboot logback-spring.xml 配置, 使用不同配置文件中的配置
application.yml
spring:
profiles:
active: prod # active 哪一个配置文件
application-dev.yml
logging:
file:
path: d:/var/log
application-prod.yml
logging:
file:
path: /var/log/question
logback-spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="60 seconds" debug="false">
<contextName>wechat-service</contextName>
<!-- !!!!!!!!!获取 application-{xxx}.yml 的配置 !!!!!-->
<springProperty scope="context" name="log.path" source="logging.file.path"/>
<!--<property name="log.path" value="log" />-->
<property name="log.maxHistory" value="15" />
<property name="log.colorPattern" value="%d{yyyy-MM-dd HH:mm:ss} | %highlight(%-5level) | %boldYellow(%thread) | %boldGreen(%logger) | %msg%n"/>
<property name="log.pattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36} - %msg%n" />
<!--输出到控制台-->
<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${log.colorPattern}</pattern>
</encoder>
</appender>
<!--输出到文件 info 级别的 log-->
<appender name="file_info" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${log.path}/info/info.%d{yyyy-MM-dd}.log</fileNamePattern>
<MaxHistory>${log.maxHistory}</MaxHistory>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>INFO</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
</appender>
<!--输出到文件 error 级别的 log-->
<appender name="file_error" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${log.path}/error/error.%d{yyyy-MM-dd}.log</fileNamePattern>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
</appender>
<root level="debug">
<appender-ref ref="console" />
</root>
<root level="info">
<appender-ref ref="file_info" />
<appender-ref ref="file_error" />
</root>
</configuration>
从application-xxx.yml 中拿配置
<springProperty scope="context" name="log.path" source="logging.file.path"/>
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
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