上一篇搭建了VS Code的SpringBoot环境。
现在开始搭建SpringBoot日志系统。
SpringBoot常用的日志组件:
一、抽象层:SLF4j (对所有日志实现层的规范封装,这样可以无缝切换各种实现层)
二、实现层:Log4j,Logback,Log4j2
Log4j:已弃用,2015年已停止更新。
Logback:SpringBoot默认使用。
Log4j2:Log4j升级,集成了Logback的优点,更加快速。
SpringBoot默认使用的日志系统为:SLF4j + Logback。
这次我们选用:SLF4j + Log4j2。
pom.xml:
1、排除SpringBoot中默认的Logback包。
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-logging
2、加载Log4j2。
org.springframework.boot
spring-boot-starter-log4j2
log4j2.配置文件后缀名只能为.xml,.json 或者.jsn。
系统选择配置文件的优先级(从先到后)如下:
classpath 下的名为log4j2-test.json或者log4j2-test.jsn的文件.
classpath 下的名为log4j2-test.xml的文件.
classpath 下名为log4j2.json或者log4j2.jsn的文件.
classpath 下名为log4j2.xml的文件.
网上找的配置文件:
<configuration status="WARN" monitorInterval="1800">
<Properties>
<property name="logFileName">logsproperty>
<property name="basePath">${logFileName}property>
<property name="console_log_pattern">%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %l - %m%nproperty>
<property name="console_print_level">DEBUGproperty>
<property name="log_pattern">%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %C.%M[%L line] - %m%nproperty>
<property name="output_log_level">WARNproperty>
<property name="every_file_size">100MBproperty>
<property name="output_log_level">DEBUGproperty>
<property name="all_fileName">${basePath}/all.logproperty>
<property name="all_filePattern">${basePath}/%d{yyyy-MM}/all-%d{yyyy-MM-dd}-%i.log.gzproperty>
<property name="all_max">7property>
<property name="all_timeInterval">1property>
<property name="all_timeModulate">trueproperty>
<property name="info_fileName">${basePath}/info.logproperty>
<property name="info_filePattern">${basePath}/%d{yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log.gzproperty>
<property name="info_max">7property>
<property name="info_timeInterval">1property>
<property name="info_timeModulate">trueproperty>
<property name="warn_fileName">${basePath}/warn.logproperty>
<property name="warn_filePattern">${basePath}/%d{yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log.gzproperty>
<property name="warn_max">7property>
<property name="warn_timeInterval">1property>
<property name="warn_timeModulate">trueproperty>
<property name="error_fileName">${basePath}/error.logproperty>
<property name="error_filePattern">${basePath}/%d{yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log.gzproperty>
<property name="error_max">7property>
<property name="error_timeInterval">1property>
<property name="error_timeModulate">trueproperty>
Properties>
<appenders>
<Console name="Console" target="SYSTEM_OUT">
<ThresholdFilter level="${console_print_level}" onMatch="ACCEPT" onMismatch="DENY" />
<PatternLayout pattern="${console_log_pattern}" />
Console>
<RollingFile name="AllFile" fileName="${all_fileName}" filePattern="${all_filePattern}">
<PatternLayout pattern="${log_pattern}" />
<Policies>
<TimeBasedTriggeringPolicy interval="${all_timeInterval}" modulate="${all_timeModulate}" />
<SizeBasedTriggeringPolicy size="${every_file_size}" />
Policies>
<DefaultRolloverStrategy max="${all_max}" />
RollingFile>
<RollingFile name="InfoFile" fileName="${info_fileName}" filePattern="${info_filePattern}">
<PatternLayout pattern="${log_pattern}" />
<Policies>
<TimeBasedTriggeringPolicy interval="${info_timeInterval}" modulate="${info_timeModulate}" />
<SizeBasedTriggeringPolicy size="${every_file_size}" />
Policies>
<DefaultRolloverStrategy max="${info_max}" />
<Filters>
<ThresholdFilter level="WARN" onMatch="DENY" onMismatch="NEUTRAL" />
<ThresholdFilter level="INFO" onMatch="ACCEPT" onMismatch="DENY" />
Filters>
RollingFile>
<RollingFile name="WarnFile" fileName="${warn_fileName}" filePattern="${warn_filePattern}">
<PatternLayout pattern="${log_pattern}" />
<Policies>
<TimeBasedTriggeringPolicy interval="${warn_timeInterval}" modulate="${warn_timeModulate}" />
<SizeBasedTriggeringPolicy size="${every_file_size}" />
Policies>
<DefaultRolloverStrategy max="${warn_max}" />
<Filters>
<ThresholdFilter level="ERROR" onMatch="DENY" onMismatch="NEUTRAL" />
<ThresholdFilter level="WARN" onMatch="ACCEPT" onMismatch="DENY" />
Filters>
RollingFile>
<RollingFile name="ErrorFile" fileName="${error_fileName}" filePattern="${error_filePattern}">
<PatternLayout pattern="${log_pattern}" />
<Policies>
<TimeBasedTriggeringPolicy interval="${error_timeInterval}" modulate="${error_timeModulate}" />
<SizeBasedTriggeringPolicy size="${every_file_size}" />
Policies>
<DefaultRolloverStrategy max="${error_max}" />
<Filters>
<ThresholdFilter level="FATAL" onMatch="DENY" onMismatch="NEUTRAL" />
<ThresholdFilter level="ERROR" onMatch="ACCEPT" onMismatch="DENY" />
Filters>
RollingFile>
appenders>
<loggers>
<logger name="java.sql" level="DEBUG" additivity="false">
<appender-ref ref="Console" />
logger>
<logger name="org.mybatis.spring" level="WARN" additivity="false">
<appender-ref ref="Console" />
logger>
<logger name="org.springframework" level="WARN" additivity="false">
<appender-ref ref="Console" />
logger>
<root level="${output_log_level}">
<appender-ref ref="AllFile" />
<appender-ref ref="Console" />
<appender-ref ref="InfoFile" />
<appender-ref ref="WarnFile" />
<appender-ref ref="ErrorFile" />
root>
loggers>
configuration>
//注意是slf4j中的类
import org.slf4j.LoggerFactory;
import org.slf4j.Logger;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class PublicController {
private Logger logger = LoggerFactory.getLogger(this.getClass());
@RequestMapping("/test")
public String Hello() {
logger.warn("warn");
logger.info("info");
logger.debug("debug");
logger.error("error");
return "Hello World !";
}
}