无论利用java的哪一类框架，都少不了日志的记录，因此，在这里先我项目中完整的log4j的记录

<?xml version="1.0" encoding="UTF-8"?>  
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">  
<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/' threshold="debug"  >
	
	<appender name="console" class="org.apache.log4j.ConsoleAppender">  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern"    
                value="[%d{yyyy-MM-dd HH:mm:ss,SSS\} %-5p] [%t] %c - %m%n" />  
        </layout>  
        <filter class="org.apache.log4j.varia.LevelRangeFilter">  
            <param name="levelMin" value="debug" />  
            <param name="levelMax" value="error" />  
            <param name="AcceptOnMatch" value="true" />  
        </filter>  
    </appender>  
    
    <appender name="debug" class="org.apache.log4j.DailyRollingFileAppender">    
        <param name="File" value="${user.dir}/ABC/log/debug/debug.log" /> 
		<param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />   
        <param name="Append" value="true" />  
        <param name="MaxBackupIndex" value="10" />  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss,SSS\} %-5p] [%t] %c - %m%n" />  
        </layout>  
        <filter class="org.apache.log4j.varia.LevelRangeFilter">  
            <param name="levelMin" value="debug" />  
            <param name="levelMax" value="debug" />  
            <param name="AcceptOnMatch" value="true" />  
        </filter>
    </appender>
    
    <appender name="info" class="org.apache.log4j.DailyRollingFileAppender">    
        <param name="File" value="${user.dir}/OSS/log/info/info.log" />
		<param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />   		
        <param name="Append" value="true" />  
        <param name="MaxBackupIndex" value="10" />  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss,SSS\} %-5p] [%t] %c - %m%n" />  
        </layout>  
        <filter class="org.apache.log4j.varia.LevelRangeFilter">  
            <param name="levelMin" value="info" />  
            <param name="levelMax" value="info" />  
            <param name="AcceptOnMatch" value="true" />  
        </filter>
    </appender>
    
      <appender name="error" class="org.apache.log4j.DailyRollingFileAppender">       
        <param name="File" value="${user.dir}/OSS/log/error/error.log" />         
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />         
        <layout class="org.apache.log4j.PatternLayout">       
         <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss,SSS\} %-5p] [%t] %c - %m%n" />  
        </layout>     
        <filter class="org.apache.log4j.varia.LevelRangeFilter">       
            <param name="levelMin" value="error" />       
            <param name="levelMax" value="error" />       
            <param name="AcceptOnMatch" value="true" />       
        </filter>             
    </appender> 
    
    
    <root>  
        <priority value ="debug"/>
	<appender-ref ref="console"/>  
        <appender-ref ref="debug"/>
        <appender-ref ref="info" />  
        <appender-ref ref="error" />  
    </root>
    
 </log4j:configuration>

以上就是项目中的日志记录，有需要的可以参考