使用logback按天生成日志并按等级进行分类

先看效果---->>>>

按照：error、info、warn进行分类：

 每个文件里面按日期进行分类：

 其中对应的Maven如下：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.1.10.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>demo</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build>
</project>

application.yml中添加以下内容：

#日志配置
logging:file:path: logs #content root目录下的logs文件夹存放日志，不存在则创建pattern:console: "%d{yyyy-MM-dd} [%thread] %-5level %logger{50} - %msg%n"

核心文件：logback-spring.xml：

<?xml version="1.0" encoding="UTF-8" ?>
<configuration scan="true" scanPeriod="60 seconds"><springProperty scope="context" name="LOG_NAME" source="spring.application.name"/><springProperty scope="context" name="LOG_PATH" source="logging.file.path"/><!-- 日志属性配置 --><property name="LOG_FILE" value="${LOG_PATH}/${LOG_NAME}.log"/><property name="LOG_FILE_CLEAN_HISTORY_ON_START" value="false" /><property name="ROLLING_FILE_NAME_PATTERN" value="${LOG_FILE}.%d{yyyy-MM-dd}.%i" /><property name="LOG_FILE_MAX_SIZE" value="512MB" /><property name="LOG_FILE_MAX_HISTORY" value="30" /><contextName>${LOG_NAME}</contextName><appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender"><encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><!--格式化输出（配色）：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符--><pattern>%boldMagenta(%d{yyyy-MM-dd HH:mm:ss}) %green([%thread]) %highlight(%-5level) %cyan(%logger{50}) - %msg %n</pattern></encoder></appender><!--根据日志级别分离日志，分别输出到不同的文件--><appender name="debugLog" class="ch.qos.logback.core.rolling.RollingFileAppender"><filter class="ch.qos.logback.classic.filter.ThresholdFilter"><level>debug</level></filter><encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{50} - %msg%n</pattern><charset>UTF-8</charset></encoder><!--滚动策略--><rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><!--按时间保存日志 修改格式可以按小时、按天、月来保存--><fileNamePattern>${LOG_PATH}/${LOG_NAME}-debug.%d{yyyy-MM-dd}.log</fileNamePattern><!--保存时长--><MaxHistory>${LOG_FILE_MAX_HISTORY}</MaxHistory><!--文件大小--><totalSizeCap>${LOG_FILE_MAX_SIZE}</totalSizeCap></rollingPolicy></appender><!--根据日志级别分离日志，分别输出到不同的文件--><appender name="infoLog" class="ch.qos.logback.core.rolling.RollingFileAppender"><filter class="ch.qos.logback.classic.filter.ThresholdFilter"><level>INFO</level></filter><encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{50} - %msg%n</pattern><charset>UTF-8</charset></encoder><!--滚动策略--><rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><!--按时间保存日志 修改格式可以按小时、按天、月来保存--><fileNamePattern>${LOG_PATH}/${LOG_NAME}-info.%d{yyyy-MM-dd}.log</fileNamePattern><!--保存时长--><MaxHistory>${LOG_FILE_MAX_HISTORY}</MaxHistory><!--文件大小--><totalSizeCap>${LOG_FILE_MAX_SIZE}</totalSizeCap></rollingPolicy></appender><appender name="errorLog" class="ch.qos.logback.core.rolling.RollingFileAppender"><filter class="ch.qos.logback.classic.filter.ThresholdFilter"><level>ERROR</level></filter><encoder><pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{50} - %msg%n</pattern><charset>UTF-8</charset></encoder><!--滚动策略--><rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><!--路径--><fileNamePattern>${LOG_PATH}/${LOG_NAME}-error.%d{yyyy-MM-dd}.log</fileNamePattern><!--保存时长--><MaxHistory>${LOG_FILE_MAX_HISTORY}</MaxHistory><!--文件大小--><totalSizeCap>${LOG_FILE_MAX_SIZE}</totalSizeCap></rollingPolicy></appender><!--如果不需要区分spring环境,直接用下边代码--><root level="info"><appender-ref ref="consoleLog"/><appender-ref ref="infoLog"/><appender-ref ref="errorLog"/></root><!--如果需要区分springfile 需要用下边代码-->
<!--    <springProfile name="local"><root level="debug"><appender-ref ref="consoleLog"/></root></springProfile><springProfile name="dev"><root level="info"><appender-ref ref="consoleLog"/><appender-ref ref="infoLog"/><appender-ref ref="errorLog"/><appender-ref ref="JSON_FILE" /></root></springProfile><springProfile name="test"><root level="info"><appender-ref ref="infoLog"/><appender-ref ref="errorLog"/><appender-ref ref="JSON_FILE" /></root></springProfile><springProfile name="prod"><root level="info"><appender-ref ref="consoleLog"/><appender-ref ref="infoLog"/><appender-ref ref="errorLog"/><appender-ref ref="JSON_FILE" /></root></springProfile>--></configuration>