FileUpload - Drag and Drop
In supported browsers, a file can be selected by dragdrop from filesystem. FileUpload component itself is the drop zone.
Documentation
<h:form>
<p:fileUpload listener="#{fileUploadView.handleFileUpload}" mode="advanced" dragDropSupport="true"
update="messages" sizeLimit="100000" allowTypes="/(\.|\/)(gif|jpe?g|png)$/" />
<p:growl id="messages" showDetail="true" />
</h:form>
@Named
@RequestScoped
public class FileUploadView {
private UploadedFile file;
private UploadedFiles files;
public UploadedFile getFile() {
return file;
}
public void setFile(UploadedFile file) {
this.file = file;
}
public UploadedFiles getFiles() {
return files;
}
public void setFiles(UploadedFiles files) {
this.files = files;
}
public void upload() {
if (file != null) {
FacesMessage message = new FacesMessage("Successful", file.getFileName() + " is uploaded.");
FacesContext.getCurrentInstance().addMessage(null, message);
}
}
public void uploadMultiple() {
if (files != null) {
for (UploadedFile f : files.getFiles()) {
FacesMessage message = new FacesMessage("Successful", f.getFileName() + " is uploaded.");
FacesContext.getCurrentInstance().addMessage(null, message);
}
}
}
public void handleFileUpload(FileUploadEvent event) {
FacesMessage msg = new FacesMessage("Successful", event.getFile().getFileName() + " is uploaded.");
FacesContext.getCurrentInstance().addMessage(null, msg);
}
}
