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
<dependency>
<!-- 包含 mvc,aop 等jar资源 -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<!--去掉默认日志，加载别的日志 , 切换log4j2日志读取 -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>2， 然后添加如下两个日志依赖
<!-- 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>二，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: ${sys:log.level.xjj}
# AppenderRef:
# - ref: CONSOLE
# - ref: ROLLING_FILE
3， 在application.yml引入log4j2.yml
#在application.yml引入log4j2.yml
logging:
config: classpath:log4j2.yml
三， 不同日志枚举类
package com.tcs.irecr.util;
/**
*
* 本地日志枚举
* 由于配置了4个文件存放不同日志，分别为平台日志（${project.name}_platform.log）、 业务日志（${project.name}_bussiness.log）、错误日志（${project.name}_exception.log）、DB 日志（${project.name}_db.log），
* 文件夹外面为运行日志，不同文件日志级别不一样，因此程序员在开发时候需要注意引入不同日志，
* 也就是说开发出现的日志，程序员可以进行分类，分别调用公共方法即可。
* 公共类编辑如下；
*
* @author 1632369
*
*/
public enum LogEnum {
BUSSINESS("bussiness"),PLATFORM("platform"),DB("db"),EXCEPTION("exception");
private String category;
LogEnum(String category) {
this.category = category;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
}
四， 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
*
* @return
*/
public static Logger getBussinessLogger() {
return LoggerFactory.getLogger(LogEnum.BUSSINESS.getCategory());
}
/**
* 获取平台日志logger
*
* @return
*/
public static Logger getPlatformLogger() {
return LoggerFactory.getLogger(LogEnum.PLATFORM.getCategory());
}
/**
* 获取数据库日志logger
*
* @return
*/
public static Logger getDBLogger() {
return LoggerFactory.getLogger(LogEnum.DB.getCategory());
}
/**
* 获取异常日志logger
*
* @return
*/
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
