表单上传excel 问题

报这个错误，表单已设置enctype='multipart/form-data'
后台： @AdaptBy(type = UploadAdaptor.class, args = { "${app.root}/WEB-INF/tmp" })

12-13 15:55:26.888  WARN  - [UploadAdaptor.http-bio-8080-exec-10] Using form upload ? You forgot this --> enctype='multipart/form-data' ?
12-13 15:55:26.892  WARN  - [FailProcessor.http-bio-8080-exec-10] Error@/marketuser/addbatch :
java.lang.IllegalArgumentException: Unknow Content-Type : application/x-www-form-urlencoded; charset=UTF-8

Unknow Content-Type : application/x-www-form-urlencoded; charset=UTF-8？这个是少什么导致的？