在 log4j.properties 中将这段代码添加进去就好了
#
log4j.rootLogger=INFO, Console
#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=DEBUG
log4j.logger.org.apache=ERROR
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
#####就上面这一点内容，下面是我的某个项目中 log4j.properties 的源码
# Set root category priority to INFO and its only appender to CONSOLE.
log4j.rootCategory=DEBUG,CONSOLE,LOGFILE,LOGERROR
#log4j.rootCategory=INFO, CONSOLE, LOGFILE
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=DEBUG
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
#log4j.appender.CONSOLE.layout.ConversionPattern=- %m%n
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%c]-[%p] %m%n
log4j.appender.CONSOLE.Encoding=UTF-8
#
log4j.rootLogger=INFO, Console
#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=DEBUG
log4j.logger.org.apache=ERROR
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
#
# LOGFILE is set to be a File appender using a PatternLayout.
# log4j.appender.LOGFILE=org.apache.log4j.DailyRollingFileAppender
# log4j.appender.LOGFILE.DatePattern='.'yyyy-MM-dd
# log4j.appender.LOGFILE.File=${catalina.base}/logs/APPLog.log
# log4j.appender.LOGFILE.Threshold=INFO
# log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
# log4j.appender.LOGFILE.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%c]-[%p] %m%n
log4j.appender.LOGFILE=org.apache.log4j.DailyRollingFileAppender
#uFF08u5B89u88C5u76EEu5F55uFF09IBMWebSphereAppServerprofilesAppSrv01logsserver1
log4j.appender.LOGFILE.File=${catalina.base}/logs/info.log
log4j.appender.LOGFILE.DatePattern='.'yyyy-MM-dd
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.Threshold=INFO
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss.SSS} [%c]-[%p] %m%n
log4j.appender.LOGFILE.Encoding=UTF-8
log4j.appender.LOGERROR=org.apache.log4j.DailyRollingFileAppender
log4j.appender.LOGERROR.File=${catalina.base}/logs/error.log
log4j.appender.LOGERROR.DatePattern='.'yyyy-MM-dd
log4j.appender.LOGERROR.Append=true
log4j.appender.LOGERROR.Threshold=ERROR
log4j.appender.LOGERROR.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGERROR.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss.SSS} [%c]-[%p] %m%n
log4j.appender.LOGERROR.Encoding=UTF-8
# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
#log4j.logger.com.qualcomm=DEBUG
log4j.logger.org.acegi=ERROR
log4j.logger.com.svw.tms=DEBUG
log4j.logger.org.springframework=ERROR
log4j.logger.org.mybatis=ERROR
log4j.logger.org.quartz=INFO
log4j.logger.com.broadtext=DEBUG
log4j.logger.com.svw.common.workbench=DEBUG
log4j.logger.com.opensymphony=ERROR
log4j.logger.com.mchange=ERROR
log4j.logger.freemarker=ERROR
log4j.logger.net.sf.ehcache=ERROR
#log4j.logger.org.hibernate.type=DEBUG