How to display the byte array as string in JSF?

[newuser001]

I need to display byte array as string in a textarea. Is this any way to display, without converting this in BackingBean.

[michpetrov]

You'll need to convert it, either in the backing bean or by creating a custom converter.

[newuser001]

hi Michal,

        I need to convert it by custom converter.

[michpetrov]

Okay, it would look like this:

import javax.enterprise.context.RequestScoped;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;
import javax.inject.Named;

@Named
@RequestScoped
@FacesConverter("myConverter")
public class MyConverter implements Converter {

    // textarea -> bean
    @Override
    public Object getAsObject(FacesContext context, UIComponent component, String value) {
        // do conversion…
    }

    // bean -> textarea
    @Override
    public String getAsString(FacesContext context, UIComponent component, Object value) {
        // do conversion…
    }
}

You can ignore the FacesContext and the UIComponent, just take the value and convert it to what you need.

Then on your page you can just do this:

<h:inputTextarea value="#{bean.byteArray}" converter="#{myConverter}" />

[newuser001]

hi Michal,

   Thanks a lot. its working well