java - GWT access denied to save file in any folder -

java - GWT access denied to save file in any folder -

i'm uploading file gwt application using tutorial. file uploaded via servlet , each time wish save file or read getinputstream message:

> access denied ("java.io.filepermission" "c:\users\nespre~1\appdata\local\temp\poifiles" "write")

how can ensure file can read? thanks!

protected void dopost(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception { ... list<fileitem> items = upload.parserequest(req); if (item.isformfield()) continue; string filename = item.getname(); if (filename != null) { filename = filenameutils. getname(filename); } file uploadedfile = new file(upload_directory, filename); if (uploadedfile.createnewfile()) //throw exception here }

java gwt file-upload