SpringBoot默認(rèn)日志配置輸出級(jí)別
來(lái)源：blog.csdn.net/csdn18740599042
/article/details/109031005
Springboot默認(rèn)配置
我們?cè)跍y(cè)試類中來(lái)進(jìn)行演示
package com.staticzz.springboot_logging;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootLoggingApplicationTests {
/**
* SLF4J日志記錄器
*/
Logger logger = LoggerFactory.getLogger(getClass());
@Test
public void contextLoads() {
/**
* 日志級(jí)別,由低到高
* 我們可以調(diào)整日志級(jí)別,日志就只會(huì)在這個(gè)級(jí)別以后生效
*/
logger.trace("這是trace日志");
logger.debug("這是debug信息");
logger.info("這是info信息");
/**
* 運(yùn)行后,從info信息開始輸出,說(shuō)明Springboot默認(rèn)是info級(jí)別的日志信息
*/
logger.warn("這是warning信息");
logger.error("這是error信息");
}
}
動(dòng)態(tài)演示:
那我們要是需要修改默認(rèn)的日志級(jí)別怎樣修改?
可以在SpringBoot的配置文件中寫入
logging.level.com.staticzz=trace
這句代碼的意思是我將com.staticzz包下的所有類的日志級(jí)別都設(shè)置為trace級(jí)別
動(dòng)態(tài)演示:
那我們可以在application.properties配置文件中指定logging.level,那能不能指定其他參數(shù)呢?
答案是可以的
#指定某個(gè)包下的日志級(jí)別
logging.level.com.staticzz=trace
#指定log文件名
#logging.file=SpringBoot.log
#指定log輸出路徑,如果不指定,默認(rèn)輸出到控制臺(tái)
logging.path=C:/Users/socra
#指定控制臺(tái)輸出格式
#logging.pattern.console=
#指定文件輸出格式
logging.pattern.file=%d{-yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-51level %logger{50} - %msg%n
這里要注意一個(gè)問(wèn)題,logging.file與logging.path不能同時(shí)使用,會(huì)出現(xiàn)沖突,我們只需要二選一配置就行!
演示:
那為什么Springboot日志默認(rèn)級(jí)別是info級(jí)別,這個(gè)級(jí)別SpringBoot到底在哪里指定的呢?它的日志的默認(rèn)配置到底是怎么樣的呢?到底在默認(rèn)配置中都配置了哪些東西呢?
我們都知道SpringBoot使用的是SLF4J+logback來(lái)記錄日志的,接下來(lái)我們?cè)谝蕾嚨膕pingboot這個(gè)包找到這個(gè)logback這個(gè)jar包,來(lái)查看一下到底默認(rèn)配置都配了什么東西?
剛剛講到SpringBoot中的日志級(jí)別默認(rèn)是INFO級(jí)別,我們通過(guò)以上演示就可以看到,SpringBoot中的日志配置主要使用到了以下幾個(gè)文件,這里我一一列舉下:
base.xml defaults.xml console-appender.xml file-appender.xml LoggingSystemProperties
這里我把這些文件內(nèi)容全部列舉出來(lái),并說(shuō)明它們的作用!
base.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
Base logback configuration provided for compatibility with Spring Boot 1.1
-->
<included>
<!--引入了默認(rèn)配置的xml文件-->
<include resource="org/springframework/boot/logging/logback/defaults.xml" />
<property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}}/spring.log}"/>
<!--引入了控制臺(tái)輸出格式的xml文件-->
<include resource="org/springframework/boot/logging/logback/console-appender.xml" />
<!--引入了文件輸出格式的xml文件-->
<include resource="org/springframework/boot/logging/logback/file-appender.xml" />
<!-- 這里就是Springboot日志默認(rèn)級(jí)別的配置-->
<root level="INFO">
<appender-ref ref="CONSOLE" />
<appender-ref ref="FILE" />
</root>
</included>
defaults.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
Default logback configuration provided for import, equivalent to the programmatic
initialization performed by Boot
-->
<included>
<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" />
<!--控制默認(rèn)輸出的格式->
<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(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
<!--文件默認(rèn)輸出的格式->
<property name="FILE_LOG_PATTERN" value="${FILE_LOG_PATTERN:-%d{yyyy-MM-dd HH:mm:ss.SSS} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
<appender name="DEBUG_LEVEL_REMAPPER" class="org.springframework.boot.logging.logback.LevelRemappingAppender">
<destinationLogger>org.springframework.boot</destinationLogger>
</appender>
<!--默認(rèn)規(guī)定好的級(jí)別->
<logger name="org.apache.catalina.startup.DigesterFactory" level="ERROR"/>
<logger name="org.apache.catalina.util.LifecycleBase" level="ERROR"/>
<logger name="org.apache.coyote.http11.Http11NioProtocol" level="WARN"/>
<logger name="org.apache.sshd.common.util.SecurityUtils" level="WARN"/>
<logger name="org.apache.tomcat.util.net.NioSelectorPool" level="WARN"/>
<logger name="org.crsh.plugin" level="WARN"/>
<logger name="org.crsh.ssh" level="WARN"/>
<logger name="org.eclipse.jetty.util.component.AbstractLifeCycle" level="ERROR"/>
<logger name="org.hibernate.validator.internal.util.Version" level="WARN"/>
<logger name="org.springframework.boot.actuate.autoconfigure.CrshAutoConfiguration" level="WARN"/>
<logger name="org.springframework.boot.actuate.endpoint.jmx" additivity="false">
<appender-ref ref="DEBUG_LEVEL_REMAPPER"/>
</logger>
<logger name="org.thymeleaf" additivity="false">
<appender-ref ref="DEBUG_LEVEL_REMAPPER"/>
</logger>
</included>
那這里有一個(gè)問(wèn)題?
defaults.xml文件中默認(rèn)控制臺(tái),默認(rèn)文件輸出的格式都在代碼中引用了相關(guān)的環(huán)境變量,那這些環(huán)境變量在哪呢?我們?cè)赟pringboot中也修改過(guò)這些配置,
${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
答案:在以下這個(gè)類中
LoggingSystemProperties.java
/*
* Copyright 2012-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.logging;
import org.springframework.boot.ApplicationPid;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.core.env.Environment;
/**
* Utility to set system properties that can later be used by log configuration files.
*
* @author Andy Wilkinson
* @author Phillip Webb
*/
class LoggingSystemProperties {
static final String PID_KEY = LoggingApplicationListener.PID_KEY;
static final String EXCEPTION_CONVERSION_WORD = LoggingApplicationListener.EXCEPTION_CONVERSION_WORD;
static final String CONSOLE_LOG_PATTERN = LoggingApplicationListener.CONSOLE_LOG_PATTERN;
static final String FILE_LOG_PATTERN = LoggingApplicationListener.FILE_LOG_PATTERN;
static final String LOG_LEVEL_PATTERN = LoggingApplicationListener.LOG_LEVEL_PATTERN;
private final Environment environment;
LoggingSystemProperties(Environment environment) {
this.environment = environment;
}
public void apply() {
apply(null);
}
public void apply(LogFile logFile) {
RelaxedPropertyResolver propertyResolver = RelaxedPropertyResolver
.ignoringUnresolvableNestedPlaceholders(this.environment, "logging.");
setSystemProperty(propertyResolver, EXCEPTION_CONVERSION_WORD,
"exception-conversion-word");
setSystemProperty(PID_KEY, new ApplicationPid().toString());
setSystemProperty(propertyResolver, CONSOLE_LOG_PATTERN, "pattern.console");
setSystemProperty(propertyResolver, FILE_LOG_PATTERN, "pattern.file");
setSystemProperty(propertyResolver, LOG_LEVEL_PATTERN, "pattern.level");
if (logFile != null) {
logFile.applyToSystemProperties();
}
}
private void setSystemProperty(RelaxedPropertyResolver propertyResolver,
String systemPropertyName, String propertyName) {
setSystemProperty(systemPropertyName, propertyResolver.getProperty(propertyName));
}
private void setSystemProperty(String name, String value) {
if (System.getProperty(name) == null && value != null) {
System.setProperty(name, value);
}
}
}
關(guān)于控制臺(tái)輸出的格式 console-appender.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
Console appender logback configuration provided for import, equivalent to the programmatic
initialization performed by Boot
-->
<included>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${CONSOLE_LOG_PATTERN}</pattern>
<charset>utf8</charset>
</encoder>
</appender>
</included>
關(guān)于日志文件輸出的格式 file-appender.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
File appender logback configuration provided for import, equivalent to the programmatic
initialization performed by Boot
-->
<included>
<appender name="FILE"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<encoder>
<pattern>${FILE_LOG_PATTERN}</pattern>
</encoder>
<file>${LOG_FILE}</file>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>${LOG_FILE}.%i</fileNamePattern>
</rollingPolicy>
<triggeringPolicy
class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>10MB</MaxFileSize>
</triggeringPolicy>
</appender>
</included>
那我們已經(jīng)看見了SpringBoot日志的默認(rèn)配置文件,如果去自定義日志的配置文件呢?
方法是:
給類路徑下，放上每個(gè)日志框架的配置文件即可
官方推薦使用logback-spring.xml這種格式
當(dāng)我們使用
logback.xml時(shí),日志框架直接加載該配置文件,就不能使用高級(jí)功能
logback-spring.xml時(shí),由SpringBoot加載該配置文件,就可以使用高級(jí)功能比如spring.profile ,這個(gè)屬性咱們之前用過(guò),為Spring底層的多環(huán)境支持,那我們就可以指定某個(gè)日志的配置文件只在某個(gè)環(huán)境下生效
<springProfile name="profile屬性">
<!-- configuration to be enabled when the "staging" profile is active -->
指定日志的某個(gè)配置只在設(shè)置的環(huán)境下生效
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