grails – 使用src / groovy文件中的log4j

package com.brand.vh.importer.command

import org.apache.log4j.Logger

class NewOrder extends CommandAbstract {
   private final Logger log = Logger.getLogger(getClass())

   NewOrder() {
       log.debug("NewOrder constructor called")
   }
}

在Config.groovy中,我有以下log4j设置：

....
// log4j configuration
import org.apache.log4j.DailyRollingFileAppender
log4j = {
    appenders {
        appender new DailyRollingFileAppender(
            name: "fileAppenderImporter",file: "log/importer.log",datePattern: "'.'yyyy-MM-dd",layout: pattern(
                        conversionPattern:
                        "%d{ISO8601} [%p][%X{IP}](%F:%M:%L):%n%m%n%n"
                    )
        )
        ....
    }
    ...
    debug additivity: false,fileAppenderImporter: ["com.brand.vh.importer"]
    ...
}

但我的log / importer.log始终为空.我的代码/配置有什么问题？

我会很高兴任何建议,链接等