was7 slf4j logback 无法产生日志文件

[这个用户很懒]

java项目，目前采用slf4j+logback 记录日志，tomcat运行输出无问题。但将应用部署到was7就无法生存日志文件。
求给位大牛不吝赐教

<?xml version="1.0" encoding="UTF-8"?>

<configuration>

	<property name="LOGBACK_HOME" value="C:/temp/logs/" />
	<!-- to console --> 
	<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
		<encoder>  
			<pattern>%d{yyyy-MM-dd HH:mm:ss}|%thread|%-5level|%logger{80}|%method|%line -> %msg%n</pattern>  
		</encoder> 
	</appender>
  
	<!-- log output to file  --> 
	<appender name="RollingFile" class="ch.qos.logback.core.rolling.RollingFileAppender">
		<file>${LOGBACK_HOME}pccc.nl</file>
		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
			<!-- rollover daily -->  
			<fileNamePattern>${LOGBACK_HOME}log_%d{yyyy-MM-dd}.nl.%i</fileNamePattern>  
			<maxHistory>30</maxHistory>   
			<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">  
				<!-- or whenever the file size reaches 10MB -->  
				<maxFileSize>1MB</maxFileSize>
			</timeBasedFileNamingAndTriggeringPolicy>
		</rollingPolicy>  
		<encoder>  
			<pattern>%d{yyyy-MM-dd HH:mm:ss}|%thread|%-5level|%logger{80}|%method|%line -> %msg%n</pattern>  
		</encoder>  
	</appender>  

	
	<!-- root --> 
	<root level="DEBUG">
		<appender-ref ref="stdout"/>
		<appender-ref ref="RollingFile"/>
	</root>
   
   
</configuration>

[Justin-Liu]

应该是权限的问题吧