ERROR Could not find value for key log4j.appender.Console

log4j報錯：

log4j:ERROR Could not find value for key log4j.appender.Console 

log4j:ERROR Could not instantiate appender named "Console". 

log4j:WARN No appenders could be found for logger (org.directwebremoting.util.Logger). 

log4j:WARN Please initialize the log4j system properly.

配置中這麼寫：

log4j.rootLogger = DEBUG,Console

應該增加：Console

log4j.appender.Console= org.apache.log4j.DailyRollingFileAppender 

log4j.appender.Console.File = /home/htmlfile/logs/ms.log 

log4j.appender.Console.Append = true 

log4j.appender.Console.DatePattern = '.'yyyy-MM-dd 

log4j.appender.Console.layout = org.apache.log4j.PatternLayout 

log4j.appender.Console.layout.ConversionPattern = %d %-5p - [%l] - %m%n

主要是沒有在配置檔案中定義造成初始化錯誤！

本文轉自jooben 51CTO部落格，原文連結:http://blog.51cto.com/jooben/357066