12:http://docs.zkoss.org/wiki/ZK_5:_New_File_Upload

answered 2009-08-04 07:24:31 +0800

anonymous
1

Is there something to compress the file at client before upload?

Do you send the file compressed to the server? Well maybe it is send to server compressed by GZIP by default.

Cheers,

answered 2009-08-04 10:40:08 +0800

anonymous
1

I don't think HTML FORM submission supports any compression, unless you implement it with Flash, do you?

answered 2009-08-04 15:47:23 +0800

anonymous
1

How Greate it is!
Cheers.

answered 2009-08-04 17:23:19 +0800

anonymous
1

Will this allow multiple files to be selected at the same and all uploaded at once?

answered 2009-08-04 18:31:14 +0800

anonymous
1

I think browser won't let you do this.
you need to open lots of XMLHttpRequests.

answered 2009-08-05 03:57:13 +0800

anonymous
1

Multiple selection will be supported in the later version, but it requires Flash (not just pure HTML+JavaScript).

However, it might not be a good idea to upload all files simultaneously since it will have some performance impact to the server (network traffic).

BTW, the browser has the limitation about how many connections can be made to the same server. So, uploading multiple files at the same time requires Flash (or other plugin), too.

answered 2009-09-17 15:20:30 +0800

anonymous
1

I have a problem with the 3th example.

Method, setLabel, not found for class org.zkoss.zul.Fileupload
org.zkoss.zk.ui.metainfo.PropertyNotFoundException

What could be the reason?
Thanks.

answered 2010-02-18 15:58:30 +0800

anonymous
1

how does Gmail support multiple files upload? It doesn't seem to be using Flash. Also, do you have any idea when this will be supported in ZK?

Thank you

answered 2010-02-25 16:11:06 +0800

anonymous
1

I have trouble to make this work with only java. How can I save the files uploaded and I can't get the image.setContent(event.getMedia()) working. Also every image I upload is rejected as image (if (media instanceof org.zkoss.zul.Image)). Can somebody tell me what I did wrong

zulfile:
----
<?xml version="1.0" encoding="UTF-8"?>
<zk xmlns="http://www.zkoss.org/2005/zul">
<window id="win2" title="upload" border="normal" apply="control.w2Controller">
<fileupload id="upl" label="Attach" upload="true" />
<image id="img" />
</window>
</zk>

javafile:
----
package control;

import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.event.UploadEvent;
import org.zkoss.zk.ui.util.GenericForwardComposer;
import org.zkoss.zul.Fileupload;
import org.zkoss.zul.Window;
import org.zkoss.zul.Image;

public class w2Controller extends GenericForwardComposer
{
private Image img;
private Fileupload upl;

@Override
public void doAfterCompose(Component win) throws Exception
{
super.doAfterCompose(win);
((Window)self).setTitle("init");
}

public void onUpload$upl(UploadEvent event) throws InterruptedException
{
((Window)self).setTitle("uploaded");
Object media = event.getMedia();

if (media instanceof org.zkoss.zul.Image) // <- never true, even as image???
{
//img.setContent(media); // <-- this will not compile
}
else
{
alert("not an image");
((Window)self).setTitle("uploaded -> not an image");
}
}
}