Spring MVC 实现文件上传及压缩包上传（提交之后页面不跳转）

log4j.properties 配置文件

log4j.rootLogger=DEBUG,stdout,D,E  
  
#stdout
#log4j.appender.stdout=org.apache.log4j.ConsoleAppender   
#log4j.appender.stdout.Target = System.out  
#log4j.appender.stdout.Threshold=DEBUG
#log4j.appender.stdout.layout=org.apache.log4j.PatternLayout   
#log4j.appender.stdout.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH:mm:ss}] %l %m %n    

#error
log4j.appender.E= org.apache.log4j.RollingFileAppender
log4j.appender.E.File=${webapp.root}/logs/error.log 
log4j.appender.E.MaxFileSize=10mb
log4j.appender.E.MaxBackupIndex=10
log4j.appender.E.Threshold=ERROR
log4j.appender.E.ImmediateFlush=true
log4j.appender.E.layout=org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern=[%p][%d{dd-MM-yyyy HH:mm:ss,SSS}][%c\:%L]%m%n log4j.rootLo