logback日志文件的使用

1、引入Jar包，Maven pom.xml

 1                 <!-- Logging with SLF4J & LogBack -->
 2         <dependency>
 3             <groupId>org.slf4j</groupId>
 4             <artifactId>jcl-over-slf4j</artifactId>
 5             <version>1.7.13</version>
 6         </dependency>
 7         <dependency>
 8             <groupId>org.slf4j</groupId>
 9             <artifactId>slf4j-api</artifactId>
10             <version>1.7.13</version>
11         </dependency>
12         <dependency>
13             <groupId>org.slf4j</groupId>
14             <artifactId>jul-to-slf4j</artifactId>
15             <version>1.7.13</version>
16         </dependency>
17         <dependency>
18             <groupId>ch.qos.logback</groupId>
19             <artifactId>logback-classic</artifactId>
20             <version>1.1.3</version>
21         </dependency>
22         <dependency>
23             <groupId>ch.qos.logback</groupId>
24             <artifactId>logback-core</artifactId>
25             <version>1.1.3</version>
26         </dependency>
27         <dependency>
28             <groupId>ch.qos.logback</groupId>
29             <artifactId>logback-access</artifactId>
30             <version>1.1.3</version>
31         </dependency>

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2、配置日志文件 logback.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <configuration>
 3     <contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
 4         <resetJUL>true</resetJUL>
 5     </contextListener>
 6     <!-- To enable JMX Management -->
 7     <jmxConfigurator />
 8 
 9     <!-- 打印到控制台 -->
10     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
11         <!-- encoder 默认配置为PatternLayoutEncoder -->
12         <layout class="ch.qos.logback.classic.PatternLayout">
13             <Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{40} - %msg%n</Pattern>
14         </layout>
15     </appender>
16 
17     <!-- 打印日志到文件 -->
18     <!-- 所有日志文件 -->
19     <appender name="AllLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
20         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
21             <fileNamePattern>log/shiro/all/%d{yyyy-MM-dd}.log</fileNamePattern>
22             <maxHistory>30</maxHistory>
23         </rollingPolicy>
24         <encoder>
25             <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{40} - %msg%n</pattern>
26         </encoder>
27     </appender>
28     <!-- Task日志文件 -->
29     <appender name="Tasklog" class="ch.qos.logback.core.rolling.RollingFileAppender">
30         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
31             <fileNamePattern>log/shiro/task/%d{yyyy-MM-dd}.log</fileNamePattern>
32             <maxHistory>30</maxHistory>
33         </rollingPolicy>
34         <encoder>
35             <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{40} - %msg%n</pattern>
36         </encoder>
37     </appender>
38     
39     <!-- 为莫个包下的所有类指定Appender 这里也可以指定类名称例如：com.mcs.task.ClassName -->
40      <logger name="cn.mcs.test" level="DEBUG" >
41          <appender-ref ref="STDOUT" />
42      </logger>
43      <logger name="cn.mcs.task" level="DEBUG" >
44          <appender-ref ref="Tasklog" />
45      </logger>
46      
47      <logger name="org.springframework" level="INFO" /> 
48        <logger name="org.springframework.beans" level="DEBUG" />
49 
50     <!-- 常用级别：ERROR 、WARN 、INFO 、DEBUG 、TRACE -->
51     <root level="WARN">
52         <appender-ref ref="STDOUT" />
53         <!-- <appender-ref ref="AllLog" /> -->
54       </root>
55 
56 
57 </configuration>

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3、在程序中使用

 1 import org.slf4j.Logger;  
 2 import org.slf4j.LoggerFactory;  
 3   
 4 public class LogbackTest {  
 5     private static Logger log = LoggerFactory.getLogger(LogbackTest .class);  
 6     public static void main(String[] args) {  
 7         log.trace("======trace");  
 8         log.debug("======debug");  
 9         log.info("======info");  
10         log.warn("======warn");  
11         log.error("======error");  
12     }  
13 }