日志配置logback.xml详解

素颜马尾好姑娘i 2023-01-15 10:26 138阅读 0赞

## 一、日志门面和日志框架 ##

### 1.1 概念 ###

常用日志框架：log4j、logback  
常用日志门面：Slf4j  
![日志门面与日志框架的关系][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RBYXJvbjY2Ng_size_16_color_FFFFFF_t_70]

> 目前Spring-boot主流使用： slf4j + logback

日志框架出现时间顺序：  
log4j -->JUL–>JCL–> slf4j --> logback --> log4j2

### 1.2 日志门面和日志框架依赖 ###

目前Spring-boot主流使用： slf4j + logback。所以下面说的是 slf4j 和 logback依赖引入。  
**日志门面**：依赖集成在`lombok`中，只需要引入lombok依赖即可

![Slf4j][]  
lombok依赖：

<dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.16</version>
        <scope>provided</scope>
    </dependency>

>  *  此处lombok版本1.18.16，最新依赖版本参照maven中央仓库：  
>     [https://mvnrepository.com/artifact/org.projectlombok/lombok][https_mvnrepository.com_artifact_org.projectlombok_lombok]
>  *  Idea中lombok需要装插件，引入的依赖才能生效

**日志框架依赖**：springboot项目中，集成在`spring-boot-starter`依赖中,无需自己再重复引入。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RBYXJvbjY2Ng_size_16_color_FFFFFF_t_70 1]

## 二、日志配置 ##

logback框架的日志配置一般在`resource`文件夹下的`logback.xml`文件

具体语法参考：  
[https://www.cnblogs.com/warking/p/5710303.html][https_www.cnblogs.com_warking_p_5710303.html]

日志级别排序为： TRACE < DEBUG < INFO < WARN < ERROR

下面给个参考xml文件，可根据项目情况自行修改：

<?xml version="1.0" encoding="UTF-8"?>
    <configuration scan="true" scanPeriod="10 seconds">
        
        
        
        
    
        <contextName>logback</contextName>
        
        <property name="log.path" value="D:/tzq/example" />
    
        
        
        
        
        
        
        
        <property name="CONSOLE_LOG_PATTERN" value="%yellow(%date{yyyy-MM-dd HH:mm:ss}) |%highlight(%-5level) |%blue(%thread) |%blue(%file:%line) |%green(%logger) |%cyan(%msg%n)"/>
    
    
        
        <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
            
            
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>INFO</level>
            </filter>
            <encoder>
                <Pattern>${CONSOLE_LOG_PATTERN}</Pattern>
                
                <charset>UTF-8</charset>
            </encoder>
        </appender>
    
    
        
    
        
        <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <file>${log.path}/log_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.TimeBasedRollingPolicy">
                
                <fileNamePattern>${log.path}/info/log-info-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>100MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
                
                <maxHistory>15</maxHistory>
            </rollingPolicy>
            
            <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_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.TimeBasedRollingPolicy">
                <fileNamePattern>${log.path}/warn/log-warn-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>100MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
                
                <maxHistory>15</maxHistory>
            </rollingPolicy>
            
            <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_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.TimeBasedRollingPolicy">
                <fileNamePattern>${log.path}/error/log-error-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>100MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
                
                <maxHistory>15</maxHistory>
            </rollingPolicy>
            
            <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.guli" level="INFO" />
    
            
            <root level="INFO">
                <appender-ref ref="CONSOLE" />
                <appender-ref ref="INFO_FILE" />
                <appender-ref ref="WARN_FILE" />
                <appender-ref ref="ERROR_FILE" />
            </root>
        </springProfile>
    
    
        
        <springProfile name="pro">
    
            <root level="INFO">
                <appender-ref ref="CONSOLE" />
                <appender-ref ref="DEBUG_FILE" />
                <appender-ref ref="INFO_FILE" />
                <appender-ref ref="ERROR_FILE" />
                <appender-ref ref="WARN_FILE" />
            </root>
        </springProfile>
    
    </configuration>

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RBYXJvbjY2Ng_size_16_color_FFFFFF_t_70]: /images/20221022/ac2edeb83e164b4a8962b51cc1055e42.png
[Slf4j]: /images/20221022/09628f7b2abb405494a655ed0d1defe7.png
[https_mvnrepository.com_artifact_org.projectlombok_lombok]: https://mvnrepository.com/artifact/org.projectlombok/lombok
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RBYXJvbjY2Ng_size_16_color_FFFFFF_t_70 1]: /images/20221022/408d6a8063ad4273a9f7973758bd7433.png
[https_www.cnblogs.com_warking_p_5710303.html]: https://www.cnblogs.com/warking/p/5710303.html