JSF PrimeFaces - store uploaded file path in another bean's attribute - spring

Question

To sum things up: I want to upload file passed by user through a form with <p:fileUpload> using fileUploadController ManagedBean as its fileUploadListener to a certain path, then get this path along with filename and Store it somehow (the question is - how?) in the wydarzenieMB ManagedBean because I need filePath as a String in my addWydarzenie() method to store this path in a database and later use it.
I've got a table in my database named "Wydarzenie". It has many values like name etc. which I am specyfing in my JSF form for user to fill using primefaces. There is no problem with obtaining them, I just use ManagedBean to store input and later use this input to write into DataBase using addWydarzenie() method.
Part of utworzWydarzenie.xhtml form:
...
<h:outputLabel for="opis" value="Opis :" />
<p:inputTextarea id="opis" value="#{wydarzenieMB.opis}" label="opis">
...
<p:commandButton id="addWydarzenie" value="Zatwierdź" action="#{wydarzenieMB.addWydarzenie}" ajax="false"/>
My addWydarzenie() method in wydarzenieManagedBean:
public String addWydarzenie() {
try {
Wydarzenie wydarzenie = new Wydarzenie();
...
wydarzenie.setOpis(getOpis());
...
getWydarzenieServiceImpl().addWydarzenie(wydarzenie);
return SUCCESS;
} catch (DataAccessException e) {
e.printStackTrace();
}
return ERROR;
}
There is no problem with values like that where I use p:inputText for example, because I specify value of bean (for example: value="#{wydarzenieMB.opis}") in which I want to store them. Problem begins with my <p:fileUpload> field because:
1. I am not specyfing value there because there is no value returned(?) - only file uploaded
2. I am using fileUploadController ManagedBean to handle file uploading BUT I want the filePath String of uploaded file that it possess to be stored in my wydarzenieMB ManagedBean.
Here's my uploading file code from utworzWydarzenie.xhtml form:
...
<h:outputLabel for="plakat" value="Plakat :" />
<p:fileUpload id="plakat" update="messages" fileUploadListener="#{fileUploadController.handleFileUpload}" multiple="false" sizeLimit="1000000" allowTypes="/(\.|\/)(gif|jpe?g|png)$/" />
<p:growl id="messages" showDetail="true"/>
...
And my fileUploadController class:
#ManagedBean(name="fileUploadController")
#RequestScoped
public class FileUploadController
{
private String destination="E:/PROJEKT ZESPOLOWY/events/WebContent/resources/plakaty/";
private String sciezkaPliku = ""; // complete file path including destination and file name
public void handleFileUpload(FileUploadEvent event) throws IOException {
FacesMessage msg = new FacesMessage("Plik: ", event.getFile().getFileName() + " został poprawnie wysłany na serwer.");
FacesContext.getCurrentInstance().addMessage(null, msg);
String path = destination;
SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMddHHmmss");
String name = fmt.format(new Date())
+ event.getFile().getFileName().substring(
event.getFile().getFileName().lastIndexOf('.'));
File file = new File(path + name);
sciezkaPliku += path + name; // I set file path here
InputStream is = event.getFile().getInputstream();
OutputStream out = new FileOutputStream(file);
byte buf[] = new byte[1024];
int len;
while ((len = is.read(buf)) > 0)
out.write(buf, 0, len);
is.close();
out.close();
}
public String getSciezkaPliku() {
return sciezkaPliku;
}
public void setSciezkaPliku(String sciezkaPliku) {
this.sciezkaPliku = sciezkaPliku;
}
}
It is declared as a ManagedBean because I've tried to access its sciezkaPliku variable which is filepath from wydarzenieMB like this:
#ManagedProperty(value="#{fileUploadController.sciezkaPliku}")
private String plakat;
But it was always null. I also tried to get whole wydarzenieMB inside fileUploadController and use it's setter method:
#ManagedBean(name="fileUploadController")
#RequestScoped
public class FileUploadController
{
#ManagedProperty(value="#{wydarzenieMB}")
WydarzenieManagedBean w;
public void handleFileUpload(FileUploadEvent event) throws IOException {
...
sciezkaPliku += path + name; // I set file path here
w.setPlakat(sciezkaPliku);
...
}
...
}
But it was unsuccessful either. File is uploaded and saved in a specified folder without a problem, when I print sciezkaPliku from handleFileUpload it is ok, but when I am creating my new Wydarzenie using addWydarzenie() it is always null.
Any ideas?

Answer 1

If I've understood your question clearly, I suggest you to change your scope to "#SessionScoped" in FileUploadController. I had a same problem and it was solved by this way.
check it out and inform me of the result ;)