JavaFX – Upload File

One of the previous post had a sample to download large files using JavaFX. It relies on HttpRequest attribute sink to specify the output file location. Similarly we can use source attribute for uploading a file.

I have written a simple UploadServlet to receive the file content and save at <user.home>/JavaFXDownloads/ location.

Relevant part of JavaFX client code is given below..

def uploadServletURL =      "http://localhost:8080/server/UploadServlet"; def urlConverter = URLConverter{ }; def encodedServletURL = urlConverter.encodeURL(     "{uploadServletURL}?file={inputFile.getName()}") def httpRequest: HttpRequest = HttpRequest {     location: encodedServletURL         source: new java.io.FileInputStream(inputFile)     method: HttpRequest.POST     headers: [         HttpHeader {             name: HttpHeader.CONTENT_TYPE             value: "multipart/form-data"         }     ] }

Name of file is passed as argument to upload servlet. This URL is encoded using URLConverter. The file to be uploaded is assigned to source attribute. Http content-type is set to “multipart/form-data”. You can host the UploadServlet – server – code in any webserver such as Tomcat, Glassfish etc. Value of uploadServletURL in JavaFX client must be updated to point to this servlet URL.

I found another sample code Multipart HTTP file upload with JavaFX which demonstrates alternate approach.

Try it out and let me know feedback..