Lombok @Slf4j 使用和配置

1. pom依赖

代码语言：javascript复制

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.12</version>
</dependency>

1. resources下logback.xml配置，也可通过application.properties进行日志配置

代码语言：javascript复制

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="false">
    <!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径-->
    <property name="LOG_HOME" value="/datalog/logs"/>
    <!--<property name="LOG_HOME" value="H:logs"/>-->
    <property name="LOG_NAME" value="testservice"/>
    <!-- Logback最简洁spring boot默认推荐使用-->
    <!-- 彩色日志 -->
    <!-- 彩色日志依赖的渲染类 -->
    <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"/>
    <!-- 彩色日志格式 -->
    <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(${PID:- }){magenta} %clr(---){faint} %clr([.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
    <property name="FILE_LOG_PATTERN"
              value="%-12(%d{yyyy-MM-dd HH:mm:ss.SSS}) |-%-5level [%thread] %c [%L] -| %msg%n"/>
    <!-- 控制台彩色日志输出 -->
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            <!-- <charset>utf8</charset>-->
        </encoder>
    </appender>

    <!-- 按照每天生成日志文件 -->
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <File>${LOG_HOME}/${LOG_NAME}.log</File><!--不指定会出现Linux无法输出文件-->
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!-- rollover daily -->
            <FileNamePattern>${LOG_HOME}/${LOG_NAME}.log.%d{yyyy-MM-dd}.%i.log</FileNamePattern>
            <!-- each file should be at most 100MB, keep 60 days worth of history, but at most 20GB -->
            <maxFileSize>200MB</maxFileSize>
            <maxHistory>3</maxHistory>
            <totalSizeCap>20GB</totalSizeCap>
        </rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>${FILE_LOG_PATTERN}</pattern>
        </encoder>
    </appender>

    <logger name="org.apache" level="INFO"/>
    <logger name="httpclient" level="INFO"/>
    <logger name="sun.rmi" level="INFO"/>
    <logger name="javax.management" level="INFO"/>
    <logger name="org.springframework.beans" level="INFO"/>
    <!--<logger name="org.springframework.jdbc" level="DEBUG"/>-->
    <logger name="org.springframework.core" level="INFO"/>
    <logger name="org.springframework" level="INFO"/>

    <!-- 日志输出级别 -->
    <root level="INFO">
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="FILE"/>
    </root>

</configuration>

1. 在需要使用日志的类上加@Slf4j 注解 log.info(“logindata：–》{}–》{}–》{}”, “111”, “222”, “333”);

xml logback properties resources slf4j

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