slf4j+logback 多个日志输出配置实例

一, Maven依赖包 pom.xml

 1           < dependency >
 2               < groupId > org.slf4j </ groupId >
 3               < artifactId > slf4j-api </ artifactId >
 4               < version > 1.6.0 </ version >
 5               < type > jar </ type >
 6               < scope > compile </ scope >
 7           </ dependency >
 8           < dependency >
 9               < groupId > ch.qos.logback </ groupId >
10               < artifactId > logback-core </ artifactId >
11               < version > 0.9.28 </ version >
12               < type > jar </ type >
13           </ dependency >
14           < dependency >
15               < groupId > ch.qos.logback </ groupId >
16               < artifactId > logback-classic </ artifactId >
17               < version > 0.9.28 </ version >
18               < type > jar </ type >
19           </ dependency >

二, 代码使用

import  org.slf4j.Logger;
import  org.slf4j.LoggerFactory;

/**  logger  */
private  static  Logger logger  =  LoggerFactory.getLogger(ExampleClass. class );

logger.debug( " output logs " );

三, 日志配置文件
配置多个logger
比如
第一个记载日志,
第二个输出告警
logback.xml

 1  <? xml version="1.0" ?>
 2  < configuration >
 3       <!-- property file="/home/testProject/config/app.properties"/ -->
 4       < property  file ="src\main\resources\app.properties"  />
 5       < appender  name ="FILE"   class ="ch.qos.logback.core.rolling.RollingFileAppender" >
 6           < Encoding > UTF-8 </ Encoding >
 7           < File > ${path.log}/testProject.log </ File >
 8           < Prudent > true </ Prudent >
 9           < rollingPolicy  class ="ch.qos.logback.core.rolling.TimeBasedRollingPolicy" >
10               < FileNamePattern > ${path.log}/testProject-%d{yyyy-MM-dd_HH}-%i.log </ FileNamePattern >
11               < MaxHistory > 10 </ MaxHistory >
12               < TimeBasedFileNamingAndTriggeringPolicy  class ="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP" >
13                      < MaxFileSize > 5MB </ MaxFileSize >
14               </ TimeBasedFileNamingAndTriggeringPolicy >
15           </ rollingPolicy >
16           < layout  class ="ch.qos.logback.classic.PatternLayout" >
17               < Pattern > %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n </ Pattern >
18           </ layout >
19       </ appender >
20       < appender  name ="warningLoggerAppender"   class ="ch.qos.logback.core.rolling.RollingFileAppender" >
21           < Encoding > UTF-8 </ Encoding >
22           < File > ${path.alarm}/testProject-warning.txt </ File >
23           < Prudent > true </ Prudent >
24           < rollingPolicy  class ="ch.qos.logback.core.rolling.TimeBasedRollingPolicy" >
25               < FileNamePattern > ${path.alarm}/testProject-warning-%d{yyyyMMddHHmmss}.txt </ FileNamePattern >
26               < MaxHistory > 3 </ MaxHistory >
27               < TimeBasedFileNamingAndTriggeringPolicy  class ="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP" >
28                      < MaxFileSize > 5MB </ MaxFileSize >
29               </ TimeBasedFileNamingAndTriggeringPolicy >
30           </ rollingPolicy >
31           < layout  class ="ch.qos.logback.classic.PatternLayout" >
32               <!--  Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern -->
33               < Pattern > %msg%n </ Pattern >
34           </ layout >
35       </ appender >
36 
37       < logger  name ="com.test" >
38           < level  value ="DEBUG"  /> <!--  "TRACE", "DEBUG"  -->
39           < appender-ref  ref ="FILE"  />
40       </ logger >
41       < logger  name ="warningLogger" >
42           < level  value ="TRACE"  /> <!--  "TRACE", "DEBUG"  -->
43           < appender-ref  ref ="warningLoggerAppender"  />
44       </ logger >
45  </ configuration >