UploadEvent media release memory

asked 2015-02-27 12:48:28 +0800

gds1987
18

Hi all, I have used UploadEvent of ZK to upload huge files like the below codes:

    @Listen("onUpload = #fileupload")
public void updata(UploadEvent evt) {

    log.info("===start to upload");
    Media media = evt.getMedia();
    if(media == null) {
        return;
    }
    log.info("file upload path === " + savePath);
    mediaName = media.getName();
    log.info("media.name() 1 === " + mediaName);        
    long mediaSize = media.getByteData().length;
    log.info("media length === " + mediaSize);

Infact, the codes is simple and it always works well, but what my question is :

How to release the memory which media occupies ?

Even, I write this media into file on DISK, it doesn't work. The memory of my web is huge either.

         if(media.isBinary()) {
        try {
            InputStream input = media.getStreamData();
            FileOutputStream outputStream = new FileOutputStream(savePath);  
            byte[] buf = new byte[1024 * 500];
            int length = 0;  
            while ((length = input.read(buf)) != -1) {
                outputStream.write(buf, 0, length);
            }  

            input.close();
            input = null;
            outputStream.flush();
            outputStream.close();

            showNotify("Upload Success", win);      


          } catch (IOException e1) {
              log.error(e1.getMessage());
              log.error("Upload Error"); 
              System.exit(-1);
          }            
    }

So, are there some methods to release the precious memory that media occupies after it has been written into file on disk ?

Thank you very much!