Springboot logback日志实例

操作步骤：

1. application.xml中配置日志变量，如下：

logging:
  config: classpath:logback.xml
  file:
    path: logs

2 lombok 封装

package com.example.lifeserver.demos.config;

import lombok.extern.log4j.Log4j2;

@Log4j2
public class LogConfig {
    public  static  void info(String msg){
        log.info(msg);
    }
    public  static  void warn(String msg){
        log.warn(msg);
    }
    public  static  void error(String msg){
        log.error(msg);
    }
    public  static  void debug(String msg){
        log.debug(msg);
    }
}

3 配置logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <property name="LOG_PATH" value="logs"/>
    <property name="APP_NAME" value="myapp"/>
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/${APP_NAME}.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- 每天生成一个新的日志文件 -->
            <fileNamePattern>logs/${APP_NAME}-%d{yyyy-MM-dd}.log</fileNamePattern>
            <!-- 保留 30 天的日志文件 -->
            <maxHistory>30</maxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender">
        <appender-ref ref="FILE" />
    </appender>

    <root level="info">
        <appender-ref ref="STDOUT" />
        <appender-ref ref="FILE" />
    </root>

</configuration>