04-08 15:46:48[DEBUG]Closing expired connections
04-08 15:46:48[DEBUG]Closing connections idle longer than 60000 MILLISECONDS
04-08 15:46:52[DEBUG]getResource()=file:/D:/SaaS/myjfinal/target/classes/
04-08 15:46:53[DEBUG]batch acquisition of 0 triggers
04-08 15:46:53[DEBUG]Closing expired connections
04-08 15:46:53[DEBUG]Closing connections idle longer than 60000 MILLISECONDS
04-08 15:46:57[DEBUG]getResource()=file:/D:/SaaS/myjfinal/target/classes/
04-08 15:46:58[DEBUG]Closing expired connections
04-08 15:46:58[DEBUG]Closing connections idle longer than 60000 MILLISECONDS
如题，不断的打印如上的信息，如何关闭，谢谢。
还有大量如下的信息：
04-08 15:45:48[DEBUG]loaded class com.jfinal.template.expr.ast.Compare from WebAppClassLoader=33524623@1ff8b8f
04-08 15:45:48[DEBUG]loaded class com.jfinal.template.expr.ast.Arith from WebAppClassLoader=33524623@1ff8b8f
04-08 15:45:48[DEBUG]loaded class com.jfinal.template.expr.ast.NullSafe from WebAppClassLoader=33524623@1ff8b8f
04-08 15:45:48[DEBUG]loaded class com.jfinal.template.expr.ast.IncDec from WebAppClassLoader=33524623@1ff8b8f
04-08 15:45:48[DEBUG]loaded class com.jfinal.template.expr.ast.StaticMethod from WebAppClassLoader=33524623@1ff8b8f
04-08 15:45:48[DEBUG]loaded class com.jfinal.template.expr.ast.StaticField from WebAppClassLoader=33524623@1ff8b8f
如果仍然希望配置为 debug 级别，但不希望输出太多信息，可以让针对不同的类、不同的 packag 来设置更高的级别，类似于：
log4j.logger.org.hibernate.SQL=WARN
log4j.logger.org.apache=WARN
log4j.logger.org.apache.catalina=ERROR
log4j.logger.org.apache.commons=WARN
注意上面的 log4j.logger 这个前缀与你前面的配置有关，而这个前缀后面的下面这些东东才是真正被控制的 package 与 class
org.hibernate.SQL=WARN
org.apache=WARN
org.apache.catalina=ERROR
org.apache.commons=WARN