2）新增log4j.xml檔案到src下

<?xml version="1.0" encoding="UTF-8" ?>  
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">  
  
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">  
    <appender name="console" class="org.apache.log4j.ConsoleAppender">  
        <param name="Target" value="System.out" />  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="[CateringLog] %d{yyyy-MM-dd HH:mm:ss,SSS} %-5p %c - %m%n" />  
        </layout>  
    </appender>  
  
    <appender class="org.apache.log4j.RollingFileAppender" name="file">  
        <param name="File" value="d:/companyProject/logs/catering.log" />  
        <param name="Append" value="true" />  
        <param name="MaxFileSize" value="1024KB" />  
        <param name="MaxBackupIndex" value="5" />  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="[CateringLog] %d{yyyy-MM-dd HH:mm:ss,SSS} %-5p %c - %m%n" />  
        </layout>  
    </appender>  
      
    <root>  
        <priority value="debug" />  
        <appender-ref ref="console" />  
        <appender-ref ref="file" />  
    </root>  
      
      
    <!--通過<logger></logger>的定義可以將各個包中的類日誌輸出到不同的日誌檔案中-->  
    <logger name="org.springframework">  
        <level value="ERROR" />  
    </logger>  
      
    <logger name="org.mybatis.spring">  
        <level value="ERROR" />  
    </logger>  
      
    <logger name="net.sf.ehcache">  
        <level value="ERROR" />  
    </logger>  
      
    <logger name="com.mchange.v2">  
        <level value="ERROR" />  
    </logger>  
      
    <logger name="java.sql">  
        <level value="debug" />  
    </logger>  
      
      
</log4j:configuration>
 

3）正常執行即可出現日誌資訊