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用log4j查看详细错误信息

首先加入log4j.properties文件。步骤:tomcat-->common-->classes.

具体文件内容:

log4j.rootLogger=info,Console,Rlog4j.appender.Console=org.apache.log4j.ConsoleAppenderlog4j.appender.Console.layout=org.apache.log4j.PatternLayout#log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p %c – %m%nlog4j.appender.Console.layout.ConversionPattern=%d{yy-MM-dd HH:mm:ss} %5p %c{1}:%L – %m%nlog4j.appender.R=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.R.File=${catalina.home}/logs/tomcat.loglog4j.appender.R.layout=org.apache.log4j.PatternLayoutlog4j.appender.R.layout.ConversionPattern=%d{yyyy.MM.dd HH:mm:ss} %5p %c{1}(%L):? %m%nlog4j.logger.org.apache=info, Rlog4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost]=DEBUG, Rlog4j.logger.org.apache.catalina.core=info, Rlog4j.logger.org.apache.catalina.session=info, R

其次加入 commons-logging-1.0.4.jar,log4j-1.2.15.jar两个包。步骤:tomcat-->common-->lib.

 

用log4j查看详细错误信息