Logback 將日誌分級別打印

感謝有奉獻精神的人

轉自：http://www.cnblogs.com/dragonflyyi/p/4245250.html

最近項目中用到了logback 記錄日誌，關於爲啥使用logback 請百度一下： logback與Log4J的區別

好了，廢話不多說，直奔主題，研究了好久，終於將日誌按級別將日誌分文件打印出來了，具體步驟如下：

1. 下載對於的JAR 包：

http://logback.qos.ch/

　　　　　　　　　　　　logback-access-1.1.2.jar
　　　　　　　　　　　　logback-classic-1.1.2.jar
　　　　　　　　　　　　logback-core-1.1.2.jar

http://www.slf4j.org/

　　　　　　　　　　　　slf4j-api-1.7.10.jar

mvaven , 配置如下：

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>1.1.3</version>
</dependency>
<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-access</artifactId>
    <version>1.1.3</version>
</dependency>
<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-core</artifactId>
    <version>1.1.3</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.12</version>
</dependency>

2. 創建一個web project, 寫一個簡單的JAVA class 或者Servlet.

public  class    ILoveYou{

      private final  static Logger log = LoggerFactory.getLogger(ILoveYou.class);

     public static void main(String[]  arg){

　　　　log.trace("==111111111=======trace ===================");

　　　　log.debug("============22222===debug2222222====================");
　　　　log.info("=====================33333333info333333333====================");
　　　　log.warn(" =====================warn=444444444444===================");
　　　　log.error(" =====================error====55555555555================");

     }

  }

4. 將第一步所下載的jar包導入，並運行，控制檯打印出如下信息

==111111111=======trace ===================
============22222===debug2222222====================
=====================33333333info333333333====================
=====================warn=444444444444===================
=====================error====55555555555================

5. 建立日誌配置文件： logback.xml (或者logback-test.xml)

<?xml version="1.0" encoding="UTF-8"?>  
<configuration>  
    <!-- 定義log 文件的 home 目錄  -->
    <property name="LOG_HOME"  value="C:/Users/Administrator/Desktop/logs"></property>
 
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">  
        <encoder>  
            <!-- %.-1level 只顯示信息級別的首字母,%-5level 左對齊顯示信息級別全稱 -->  
            
            <Pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] --%mdc{client} %msg%n</Pattern>  
        </encoder>  
    </appender>  
    
    <appender name="TRACE_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">  
        <encoding>UTF-8</encoding>
        <file>${LOG_HOME}/trace.log</file>  
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
            <FileNamePattern>logs/trace.%d{yyyy-MM-dd}.log</FileNamePattern>  
        </rollingPolicy>  
        <layout>  
            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>  
        </layout> 
       <!--  <filter class="ch.qos.logback.classic.filter.LevelFilter"> 
            <level>TRACE</level>  
            <onMatch>ACCEPT</onMatch>  
            <onMismatch>DENY</onMismatch>  
           </filter>  --> 
    </appender>  
    
     <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">  
        <encoding>UTF-8</encoding>
        <file>${LOG_HOME}/info.log</file>  
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
            <FileNamePattern>logs/info.%d{yyyy-MM-dd}.log</FileNamePattern>  
        </rollingPolicy>  
        <layout>  
            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>  
        </layout>
        <filter class="ch.qos.logback.classic.filter.LevelFilter"> 
            <level>INFO</level>  
            <onMatch>ACCEPT</onMatch>  
            <onMismatch>DENY</onMismatch>  
           </filter>     
    </appender>  
    
      <appender name="DEBUG_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">  
        <encoding>UTF-8</encoding>
        <file>${LOG_HOME}/debug.log</file>  
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
            <FileNamePattern>logs/debug.%d{yyyy-MM-dd}.log</FileNamePattern>  
        </rollingPolicy>  
        <layout>  
            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>  
        </layout> 
         <filter class="ch.qos.logback.classic.filter.LevelFilter"> 
            <level>DEBUG</level>  
            <onMatch>ACCEPT</onMatch>  
            <onMismatch>DENY</onMismatch>  
           </filter>   
    </appender>  
    
    
     <appender name="WARN_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">  
        <encoding>UTF-8</encoding>
        <file>${LOG_HOME}/warn.log</file>  
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
            <FileNamePattern>logs/warn.%d{yyyy-MM-dd}.log</FileNamePattern>  
        </rollingPolicy>  
        <layout>  
            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>  
        </layout> 
         <filter class="ch.qos.logback.classic.filter.LevelFilter"> 
            <level>WARN</level>  
            <onMatch>ACCEPT</onMatch>  
            <onMismatch>DENY</onMismatch>  
           </filter>   
    </appender>  
    
    
    
     <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">  
        <encoding>UTF-8</encoding>
        <file>${LOG_HOME}/error.log</file>  
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
            <FileNamePattern>logs/error.%d{yyyy-MM-dd}.log</FileNamePattern>  
        </rollingPolicy>  
        <layout>  
            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>  
        </layout> 
         <filter class="ch.qos.logback.classic.filter.LevelFilter"> 
            <level>ERROR</level>  
            <onMatch>ACCEPT</onMatch>  
            <onMismatch>DENY</onMismatch>  
           </filter>   
    </appender>  
    
   <!--  <logger name="com.mchange" level="INFO"/>  
    <logger name="org.springframework" level="WARN"/>  
    <logger name="java.sql.Connection" level="DEBUG"/>  
    <logger name="java.sql.ResultSet" level="INFO"/>  
    <logger name="com.boaotech.util" level="DEBUG"/>  -->
     
    <root level="TRACE">  
        <appender-ref ref="STDOUT"/>  
        <appender-ref ref="TRACE_FILE" />
           <appender-ref ref="INFO_FILE" />  
          <appender-ref ref="DEBUG_FILE" />  
         <appender-ref ref="WARN_FILE" />  
          <appender-ref ref="ERROR_FILE" />    
    </root>  
    
</configuration>