i write a jsp with <input type=file name=path>,but when i through servlet with request.getparameter("path"),the result is null, why,is anybody can tell me?

Hi,

You can not use request.getParameter() method when you are trying to upload a file, if the form tag has file type input tag then the form's enctype attribute should be set like enctype="multipart/form-data", then only you'll be able to get the file content in servlet.

regards,
Rakesh