配置mybatis輸出sql語句的log4j.properties

log4j.rootLogger=debug,stdout,logfile
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
#log4j.appender.stdout.Target=System.err
log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout

log4j.appender.logfile=org.apache.log4j.FileAppender
log4j.appender.logfile.File=jbit.log
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %F %p %m%n

log4j.logger.com.ibatis=DEBUG 
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG 
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG 
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG 
log4j.logger.java.sql.Connection=DEBUG 
log4j.logger.java.sql.Statement=DEBUG 
log4j.logger.java.sql.PreparedStatement=DEBUG

輸出日誌級別跳到debug，可以輸出日誌以及sql語句，方便調試