File upload-use packaged rack packages

Uploading of files

As mentioned earlier, the file upload and download, all through the operation of IO stream to achieve, so the following directly write a simple example of file upload function

First step: Import the jar package

Yes, and the download is a package

Step two: Setting up the foreground page

Requires that the form must be a multipart form, and that the submission must be post, with at least one file upload tag, which must have the name attribute, or it will be meaningless

　　　　　　

            //get File Upload Download objectSmartupload su =Newsmartupload (); //InitializeSu.initialize ( This. Getservletconfig (), request,response); Try {            //get the uploaded contentsu.upload (); //save in Server root directorySu.save ("/"); } Catch(smartuploadexception e) {//TODO auto-generated Catch blockE.printstacktrace (); }

This jar package can also set the file upload format, size, etc., you can also set the name of the file save, etc.

　　

File upload-use packaged rack packages