springboot+log4j.yml配置日志文件的方法

一，Maven 依赖 pom.xml配置

1， 去掉默认日志，以便切换到log4j2的日志依赖

2， 然后添加如下两个日志依赖

二，在工程根目录下添加 lo4g2.yml 配置文件

2， 配置文件内容

<!-- 配置 log4j2 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>

<!-- 加上这个才能辨认到log4j2.yml文件 -->
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-yaml</artifactId>
</dependency>

三，在工程根目录下添加 lo4g2.yml 配置文件

1， 文件存放位置

2， 配置文件内容

# 共有8个级别，按照从低到高为：ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF。
Configuration:
status: warn
monitorInterval: 30
Properties: # 定义全局变量
Property: # 缺省配置（用于开发环境）。其他环境需要在VM参数中指定，如下：
#测试：-Dlog.level.console=warn -Dlog.level.xjj=trace
#生产：-Dlog.level.console=warn -Dlog.level.xjj=info
- name: log.level.console
value: info
- name: log.path
value: log
- name: project.name
value: opendoc
- name: log.pattern
value: "％d{yyyy-MM-dd HH:mm:ss.SSS} -％5p ${PID:-} [％15.15t] ％-30.30C{1.} : ％m％n"
Appenders:
Console: #输出到控制台
name: CONSOLE
target: SYSTEM_OUT
PatternLayout:
pattern: ${log.pattern}
# 启动日志
RollingFile:
- name: ROLLING_FILE
fileName: ${log.path}/${project.name}.log
filePattern: "${log.path}/historyRunLog/$${date:yyyy-MM}/${project.name}-％d{yyyy-MM-dd}-％i.log.gz"
PatternLayout:
 pattern: ${log.pattern}
Filters:
# 一定要先去除不接受的日志级别，然后获取需要接受的日志级别
 ThresholdFilter:
 - level: error
 onMatch: DENY
 onMismatch: NEUTRAL
 - level: info
 onMatch: ACCEPT
 onMismatch: DENY
Policies:
 TimeBasedTriggeringPolicy: # 按天分类
 modulate: true
 interval: 1
DefaultRolloverStrategy: # 文件最多100个
 max: 100
# 平台日志
- name: PLATFORM_ROLLING_FILE
ignoreExceptions: false
fileName: ${log.path}/platform/${project.name}_platform.log
filePattern: "${log.path}/platform/$${date:yyyy-MM}/${project.name}-％d{yyyy-MM-dd}-％i.log.gz"
PatternLayout:
 pattern: ${log.pattern}
Policies:
 TimeBasedTriggeringPolicy: # 按天分类
 modulate: true
 interval: 1
DefaultRolloverStrategy: # 文件最多100个
 max: 100
# 业务日志
- name: BUSSINESS_ROLLING_FILE
ignoreExceptions: false
fileName: ${log.path}/bussiness/${project.name}_bussiness.log
filePattern: "${log.path}/bussiness/$${date:yyyy-MM}/${project.name}-％d{yyyy-MM-dd}-％i.log.gz"
PatternLayout:
 pattern: ${log.pattern}
Policies:
 TimeBasedTriggeringPolicy: # 按天分类
 modulate: true
 interval: 1
DefaultRolloverStrategy: # 文件最多100个
 max: 100
# 错误日志
- name: EXCEPTION_ROLLING_FILE
ignoreExceptions: false
fileName: ${log.path}/exception/${project.name}_exception.log
filePattern: "${log.path}/exception/$${date:yyyy-MM}/${project.name}-％d{yyyy-MM-dd}-％i.log.gz"
ThresholdFilter:
 level: error
 onMatch: ACCEPT
 onMismatch: DENY
PatternLayout:
 pattern: ${log.pattern}
Policies:
 TimeBasedTriggeringPolicy: # 按天分类
 modulate: true
 interval: 1
DefaultRolloverStrategy: # 文件最多100个
 max: 100
# DB 日志
- name: DB_ROLLING_FILE
ignoreExceptions: false
fileName: ${log.path}/db/${project.name}_db.log
filePattern: "${log.path}/db/$${date:yyyy-MM}/${project.name}-％d{yyyy-MM-dd}-％i.log.gz"
PatternLayout:
 pattern: ${log.pattern}
Policies:
 TimeBasedTriggeringPolicy: # 按天分类
 modulate: true
 interval: 1
DefaultRolloverStrategy: # 文件最多100个
 max: 100
Loggers:
Root:
level: info
AppenderRef:
- ref: CONSOLE
- ref: ROLLING_FILE
- ref: EXCEPTION_ROLLING_FILE
Logger:
- name: platform
level: info
additivity: false
AppenderRef:
 - ref: CONSOLE
 - ref: PLATFORM_ROLLING_FILE
- name: bussiness
level: info
additivity: false
AppenderRef:
 - ref: BUSSINESS_ROLLING_FILE
- name: exception
level: debug
additivity: true
AppenderRef:
 - ref: EXCEPTION_ROLLING_FILE
- name: db
level: info
additivity: false
AppenderRef:
 - ref: DB_ROLLING_FILE
# 监听具体包下面的日志
# Logger: # 为com.xjj包配置特殊的Log级别，方便调试
# - name: com.xjj
# additivity: false
# level: ${sys:log.level.xjj}
# AppenderRef:
#  - ref: CONSOLE
#  - ref: ROLLING_FILE

3， 在application.yml引入log4j2.yml

四， 不同日志枚举类

五， 不同日志工具类util编辑

package com.tcs.irecr.util;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

* 本地日志参考类 *

@author Administrator *

*/

public class LogUtils {
//* 获取业务日志logger

}

public static Logger getBussinessLogger() {
return LoggerFactory.getLogger(LogEnum.BUSSINESS.getCategory());

}

//获取平台日志logger

public static Logger getPlatformLogger() {
return LoggerFactory.getLogger(LogEnum.PLATFORM.getCategory());

}

//获取数据库日志logger

public static Logger getDBLogger() {
return LoggerFactory.getLogger(LogEnum.DB.getCategory());

}

//获取异常日志logger

public static Logger getExceptionLogger() {
return LoggerFactory.getLogger(LogEnum.EXCEPTION.getCategory());

}

六， 运行时自动在工程目录下生产日志目录和日志文件

来源：https://blog.csdn.net/weixin_38319425/article/details/93646428