如何在Liferay 6.0.6的JSF Portlet中上载文件

Question

I'm developing a JSF 2.0 portlet for Liferay 6.0.6 (Plugins SDK 6.1) and I need file upload functionality. I tried the following different solutions without success:

• Tomahawk
• overriding ActionRequest processing
• bridge:inputFile component

Any suggestion how to do it is welcomed, also hacks or using other technologies than JSF.

Answer 1

Why not use a standard HTML form so:

<form action="your_action_goes_here" method="post" enctype="multipart/form-data">
    <input type="file" name="file" id="file" />
    <input type="submit" name="submit" value="Submit" />
</form>

Then in your Java code override the processAction method (usually in a class that extends GenericPortlet or maybe Liferay's MVCPortlet or JSPPortlet (for 5.2.3)) and then you can get the file itself by:

public void processAction(ActionRequest actionRequest, ActionResponse actionResponse) {
    UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(actionRequest);
    File file = (File) uploadRequest.getFile("file");
    // Do something with your file here
}

Job done! :) This is only skeleton code, and there will be exception handling you need to do but your IDE will help with that.

~~ EDIT ~~~

Other possible solution maybe to use:

 HttpServletRequest req = FacesUtil.getRequest();
 UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(req);

This I got from: http://ironicprogrammer.blogspot.com/2010/03/file-upload-in-jsf2.html

Is that any help?

Answer 2

Use the JSF standard h:inputFile tag (or any file upload tag from any popular component suite ):

<h:form enctype="multipart/form-data">
    <h:inputFile value="#{bean.uploadedPart}" />
</h:form>

---

private Part uploadedPart;

public Part getUploadedPart() {
    return uploadedPart;
}

public void setUploadedPart(Part uploadedPart) {
    this.uploadedPart = uploadedPart;
}

Answer 3

I have successfully used file upload component of Primefaces v3.2 and the built in bridge:inputFile with Liferay-Faces v3.1.0-RC1 on Liferay-6.1-EE. Still a release candidate but pretty stable. Did not use advanced features of Primefaces upload component though. Thanks to Mr. Neil Griffin and several others in doing an excellent job on making JSF 2.x work in portlet environment.

Answer 4

The bridge:inputFile component of PortletFacesBridge 2.0.1 works for me on Liferay 6.1 EE for a Portlet 2.0 portlet using JSF 2.0. Because we're using Primefaces (v3.2), I also tried to use its uploadcomponent , but that doesn't work in portlets yet. It's being worked on for a future version of the PortletFacesBridge/Primefaces .

What worked for me was:

xhtml:

<f:view xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:p="http://primefaces.org/ui"
    xmlns:bridge="http://portletfaces.org/bridge">

...
    <h:form enctype="multipart/form-data" method="POST">
        <bridge:inputFile id="icon" binding="#{bean.attachment}" />
    </h:form>
...

bean:

import org.portletfaces.bridge.component.UploadedFile

...

private transient HtmlInputFile attachment;

...

public HtmlInputFile getAttachment() {
    return attachment;
}

public void setAttachment(HtmlInputFile attachment) {
    this.attachment = attachment;
}

public String addApplication() {
    UploadedFile uploadedFile = attachment.getUploadedFile();
    ...
}