logback-spring 日志配置以及解决方案

叁歲伎倆 2022-12-08 15:40 226阅读 0赞

# 背景 #

springboot编写的项目，部署到Tomcat，需要为服务单独配置日志

# 工程结构 #

![20200920174010909.png][]

# 开始 #

经过排查，决定使用 logback-spring.xml

首先上文件 内容(参考 [三呆子][Link 1]) 他那里是时间滚动，我改成数量滚动

<?xml version="1.0" encoding="UTF-8"?>
    
    
    
    
    <configuration  scan="true" scanPeriod="10 seconds">
        <contextName>logback</contextName>
    
        
        <property name="log.path" value="${catalina.base}/logs/" />
        <property name="log.name" value="myweb"/>
    
        
        
        <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
        <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
        <conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
        
        <property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
    
        
        <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
            
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>debug</level>
            </filter>
            <encoder>
                <Pattern>${CONSOLE_LOG_PATTERN}</Pattern>
                
                <charset>UTF-8</charset>
            </encoder>
        </appender>
    
        
        
        <appender name="DEBUG_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <file>${log.path}/${log.name}-debug.log</file>
            
            <encoder>
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
                <charset>UTF-8</charset> 
            </encoder>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
                
                <fileNamePattern>${log.path}/${log.name}-debug-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                
                <maxIndex>100</maxIndex>
            </rollingPolicy>
            <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                
                <maxFileSize>100MB</maxFileSize>
            </triggeringPolicy>
    
    
            
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>debug</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
        </appender>
    
        
        <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <file>${log.path}/${log.name}-info.log</file>
            
            <encoder>
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
                <charset>UTF-8</charset>
            </encoder>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
                
                <fileNamePattern>${log.path}/${log.name}-info-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                
                <maxIndex>100</maxIndex>
            </rollingPolicy>
            <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                
                <maxFileSize>100MB</maxFileSize>
            </triggeringPolicy>
            
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>info</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
        </appender>
    
        
        <appender name="WARN_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <file>${log.path}/${log.name}-warn.log</file>
            
            <encoder>
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
                <charset>UTF-8</charset> 
            </encoder>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
                <fileNamePattern>${log.path}/${log.name}-warn-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                
                <maxIndex>100</maxIndex>
            </rollingPolicy>
            <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                
                <maxFileSize>100MB</maxFileSize>
            </triggeringPolicy>
            
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>warn</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
        </appender>
    
        
        <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <file>${log.path}/${log.name}-error.log</file>
            
            <encoder>
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
                <charset>UTF-8</charset> 
            </encoder>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
                <fileNamePattern>${log.path}/${log.name}-error-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                
                <maxIndex>100</maxIndex>
            </rollingPolicy>
            <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                
                <maxFileSize>100MB</maxFileSize>
            </triggeringPolicy>
    
            
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>ERROR</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
        </appender>
    
        
    
        
    
        
    
        
        
        <springProfile name="dev">
            <logger name="com.sdcm.pmp" level="debug"/>
        </springProfile>
    
        <root level="info">
            <appender-ref ref="CONSOLE" />
            <appender-ref ref="DEBUG_FILE" />
            <appender-ref ref="INFO_FILE" />
            <appender-ref ref="WARN_FILE" />
            <appender-ref ref="ERROR_FILE" />
        </root>
    
         
    
    
    </configuration>

### application.yml 的配置(控制指定路径的) ###

# 设置输出日志级别 DEBUG < INFO < WARN < ERROR
    logging:
      config: classpath:logback-spring.xml
      level:
        com.package: info

新增日志依赖

<dependency>
    	<groupId>ch.qos.logback</groupId>
    	<artifactId>logback-classic</artifactId>
    	<version>${logback.version}</version>
    </dependency>

### 一般简单的项目到这里基本不会有问题了，但是，真实的远比这里复杂 ###

# 问题一： #

### 需要日志输出到Tomcat的logs里面 ###

### 解决 ###

![20200920172433270.png][]

# 问题二： #

**日志配置不生效**

**原因：sprig 优先使用内部的日志配置**

**分析：1、搜索项目 StaticLoggerBinder 类 (发现有个spring-boot-starter-log4j2多余的)**

![20200920173628605.png][]

**解决：排除他 （如果还依赖其他工程的话，在那个工程也要加上这个排除）**

<dependency>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter</artifactId>
    	<exclusions>
    		<exclusion>
    			
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-log4j2</artifactId>
    		</exclusion>
    	</exclusions>
    </dependency>

\- 完毕

[20200920174010909.png]: /images/20221123/650f93f42ddc4b28a60d97c75752f9d1.png
[Link 1]: https://blog.csdn.net/xu_san_duo/article/details/80364600
[20200920172433270.png]: /images/20221123/0afa284030014d3ca306b9033398ec50.png
[20200920173628605.png]: /images/20221123/765a74893fda44729887b9f3c6a2bb3b.png