SpringBoot Slf4j 日志文件配置与lombok使用

小咪咪 2024-04-17 22:48 95阅读 0赞

1. slf4j 依赖：

<dependency>
    			<groupId>org.slf4j</groupId>
    			<artifactId>slf4j-log4j12</artifactId>
    			<version>2.0.0-alpha0</version>
    		</dependency>

2. 配置文件（logback-spring.xml）：

<?xml version="1.0" encoding="UTF-8"?>
    
    <configuration scan="false" scanPeriod="60 seconds" debug="false">
    
        
        
        <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(${PID:- }){magenta} %clr(---){faint} %clr([%thread]){faint} %clr(%-40.40logger{39}){cyan} %clr([%L]) %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}" />
    
        
        <springProperty name="log.path" source="LOG_PATH" />
        <springProperty name="log.level" source="LOG_LEVEL" />
        <springProperty name="log.name" source="LOG_NAME" />
        
        
        
    
        
        <property name="log.timeFormat" value="yyyy-MM-dd" />
        
        <property name="log.pattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n" />
        
        <property name="log.maxHistory" value="30" />
        
        <property name="log.maxFileSize" value="10MB" />
    
        
       <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
            <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
                <pattern>${log.pattern}</pattern>
            </encoder>
       </appender>
    
        
        <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <file>${log.path}/${log.name}.log</file>
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>${log.level}</level>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                
                <FileNamePattern>${log.path}/${log.name}.%d{${log.timeFormat}}-%i.log</FileNamePattern>
                <MaxHistory>${log.maxHistory}</MaxHistory>
                <TimeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <MaxFileSize>${log.maxFileSize}</MaxFileSize>
                </TimeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
            <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
                <pattern>${log.pattern}</pattern>
            </encoder>
        </appender>
    
        
        <appender name="FILE-ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <file>${log.path}/error/${log.name}_error.log</file>
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>ERROR</level>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <FileNamePattern>${log.path}/error/${log.name}_error.%d{${log.timeFormat}}.%i.log</FileNamePattern>
                <MaxHistory>${log.maxHistory}</MaxHistory>
                <TimeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <MaxFileSize>${log.maxFileSize}</MaxFileSize>
                </TimeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
            <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
                <pattern>${log.pattern}</pattern>
            </encoder>
        </appender>
    
        
        <root level="${log.level}">
            <appender-ref ref="STDOUT" />
            <appender-ref ref="FILE" />
            <appender-ref ref="FILE-ERROR" />
        </root>
    </configuration>

3. 使用方式：

import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    private static final Logger LOGGER = LoggerFactory.getLogger(XXX.class);
    LOGGER.info("this is info level");

4. lombok可以提供getter, setter, Data（自动生成getter ,setter函数，及toString方法）, Slf4j等多个注解。可以极大简化java代码

其中 @Slf4j 即可省略类首LOGGER设置，注解自动实现，可直接使用log.info();