1 項目依賴
<!--slf4j 日誌門面-->
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.30</version>
</dependency>
<!--logback 日誌實現-->
<!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
@Slf4j
public class LogbackTest {
@Test
public void testQuick() {
log.error("error...");
log.warn("wring...");
log.info("info...");
log.debug("debug...");
log.trace("trace...");
}
@Test
public void testSplit() {
for (int i = 0; i < 100000; i++) {
log.error("error");
log.warn("wring");
log.info("info");
log.debug("debug");
log.trace("trace");
}
}
2 輸出到控制檯
logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!--配置集中管理屬性 ${name}-->
<property name="pattern" value="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c %M %L [%thread] %m%n"/>
<!--控制檯日誌輸出的 appender-->
<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
<!--控制輸出流對象(默認System.out)-->
<target>System.err</target>
<!--日誌消息格式配置-->
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${pattern}</pattern>
</encoder>
</appender>
<!--root logger 配置-->
<root level="ALL">
<appender-ref ref="console"/>
</root>
</configuration>
格式 | |
---|---|
%-5level | 日誌級別(5個字符 不足左對齊) |
%d{yyyy-MM-dd HH:mm:ss.SSS} | 日期 |
%c | 全限定類名 |
%M | method |
%L | 行號 |
%thread | 線程名稱 |
%m或者%msg | 信息 |
%n | 換行 |
2 輸出到文件
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="pattern" value="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c %M %L [%thread] %m%n"/>
<!--定義日誌文件保存路徑屬性 Windows爲當前項目所在的磁盤跟路徑-->
<property name="log_dir" value="/logs"/>
<!--日誌文件輸出的 appender-->
<appender name="file" class="ch.qos.logback.core.FileAppender">
<!--日誌文件保存路徑-->
<file>${log_dir}/logback.log</file>
<!--日誌消息格式配置-->
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${pattern}</pattern>
</encoder>
</appender>
<!--root logger 配置-->
<root level="ALL">
<appender-ref ref="file"/>
</root>
</configuration>
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="pattern" value="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c %M %L [%thread] %m%n"/>
<property name="log_dir" value="/logs"/>
<appender name="file" class="ch.qos.logback.core.FileAppender">
<file>${log_dir}/logback.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${pattern}</pattern>
</encoder>
<!--日誌級別過濾器-->
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<!--日誌過濾規則-->
<level>WARN</level>
<!--匹配到就放行-->
<onMatch>ACCEPT</onMatch>
<!--沒有匹配到就攔截-->
<onMismatch>DENY</onMismatch>
</filter>
</appender>
<root level="ALL">
<appender-ref ref="file"/>
</root>
</configuration>
3 輸出格式爲html
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!--定義日誌文件保存路徑屬性-->
<property name="log_dir" value="/logs"/>
<!--html 格式日誌文件輸出 appender-->
<appender name="htmlFile" class="ch.qos.logback.core.FileAppender">
<!--日誌文件保存路徑-->
<file>${log_dir}/logback.html</file>
<!--html 消息格式配置-->
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<layout class="ch.qos.logback.classic.html.HTMLLayout">
<pattern>%-5level%d{yyyy-MM-dd HH:mm:ss.SSS}%c%M%L%thread%m</pattern>
</layout>
</encoder>
</appender>
<!--root logger 配置-->
<root level="ALL">
<appender-ref ref="htmlFile"/>
</root>
</configuration>
4 輸出日誌進行拆分與壓縮
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="pattern" value="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c %M %L [%thread] %m%n"/>
<property name="log_dir" value="/logs"/>
<!--日誌拆分和歸檔壓縮的 appender 對象-->
<appender name="rollFile" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!--日誌文件保存路徑-->
<file>${log_dir}/roll_logback.log</file>
<!--日誌消息格式配置-->
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${pattern}</pattern>
</encoder>
<!--指定拆分規則-->
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<!--指定時間拆分一次,如果在指定時間內文件超過了設置的大小,也要拆分-->
<!--按照時間和壓縮格式聲明拆分的文件名 yyyy-MM-dd(一天一拆) yyyy-MM-dd-HH-mm-ss(一秒一拆) -->
<fileNamePattern>${log_dir}/rolling.%d{yyyy-MM-dd}.log%i.gz</fileNamePattern>
<!--按照文件大小拆分-->
<maxFileSize>1MB</maxFileSize>
</rollingPolicy>
</appender>
<root level="ALL">
<appender-ref ref="rollFile"/>
</root>
</configuration>
5 異步日誌
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="pattern" value="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c %M %L [%thread] %m%n"/>
<property name="log_dir" value="/logs"/>
<appender name="file" class="ch.qos.logback.core.FileAppender">
<file>${log_dir}/logback.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${pattern}</pattern>
</encoder>
</appender>
<!--異步日誌-->
<appender name="async" class="ch.qos.logback.classic.AsyncAppender">
<!--指定某個具體的 appender-->
<appender-ref ref="file"/>
</appender>
<root level="ALL">
<appender-ref ref="file"/>
</root>
</configuration>
//ch.qos.logback.core.AsyncAppenderBase
public class AsyncAppenderBase<E> extends UnsynchronizedAppenderBase<E> implements AppenderAttachable<E> {
AppenderAttachableImpl<E> aai = new AppenderAttachableImpl();
//日誌隊列
BlockingQueue<E> blockingQueue;
public static final int DEFAULT_QUEUE_SIZE = 256;
int queueSize = 256;
int appenderCount = 0;
static final int UNDEFINED = -1;
int discardingThreshold = -1;
boolean neverBlock = false;
6 自定義looger對象
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="pattern" value="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c %M %L [%thread] %m%n"/>
<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
<target>System.err</target>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${pattern}</pattern>
</encoder>
</appender>
<!--
自定義 looger 對象
additivity="false" 自定義 logger 對象是否繼承 rootLogger
-->
<logger name="com.nobug" level="info" additivity="false">
<appender-ref ref="console"/>
</logger>
<root level="ALL">
<appender-ref ref="console"/>
</root>
</configuration>
7 log4j配置文字轉換爲logback
log4j.rootLogger = debug,stdout
### 輸出信息到控制擡 ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = log4j : [%-5p] %m%n
<?xml version="1.0" encoding="UTF-8"?>
<!-- For assistance related to logback-translator or configuration -->
<!-- files in general, please contact the logback user mailing list -->
<!-- at http://www.qos.ch/mailman/listinfo/logback-user -->
<!-- -->
<!-- For professional support please see -->
<!-- http://www.qos.ch/shop/products/professionalSupport -->
<!-- -->
<configuration>
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<Target>System.out</Target>
<encoder>
<pattern>log4j : [%-5p] %m%n</pattern>
</encoder>
</appender>
<root level="debug">
<appender-ref ref="stdout"/>
</root>
</configuration>