File upload problem in model driven Action.

[Raza Mohd]

hi experts,

I am using Model driven Action class in my struts 2 application. In which all the property in the form are populated to the model by the ModelDrivenInterceptor. I need to populate the File tag property to the action instance, rather it is being populated to model as i am implementing model driven interface. Is there any possibility that we can populate one of the Form property to Action instance?

please give me a solution if anybody knows.

 <s:file theme="simple" 
	name="upload"  size="40"  cssStyle="font-family: 
Verdana; font-size: 11px; width: 300px;"/>   

Getting OGNL exception If i use File property in action class.

  ognl.MethodFailedException: Method "setUpload" failed for object ca.systemarchitects.action.admin.FileAction@1a12fe6   

My action contains.

  package ca.systemarchitects.action.admin;

import java.util.Map;
import org.apache.log4j.Logger;
import org.apache.struts2.interceptor.SessionAware;
import ca.systemarchitects.action.BaseAction;
import ca.systemarchitects.entities.File;
import com.opensymphony.xwork2.ModelDriven;
import com.opensymphony.xwork2.Preparable;

public class FileAction extends BaseAction implements ModelDriven<Object>,
		SessionAware,Preparable {

	/**
	 * Serial Version UID
	 */
	private static final long serialVersionUID = 8572870374629331294L;

	private static final Logger log = Logger.getLogger(FileAction.class);

        private File upload;
        private String uploadFileName;
	private String uploadContentType;
	
	public File getUpload() {
		return upload;
	}

	public void setUpload(File upload) {
		this.upload = upload;
	}

	public String getUploadFileName() {
		return uploadFileName;
	}

	public void setUploadFileName(String uploadFileName) {
		this.uploadFileName = uploadFileName;
	}

	public String getUploadContentType() {
		return uploadContentType;
	}

	public void setUploadContentType(String uploadContentType) {
		this.uploadContentType = uploadContentType;
	}


  

[David Newton]

Why are you using ModelDriven if you don't want form data to go to the model?

In any case, I would have assumed (and I don't have the source in front of me to check, unfortunately) that the ModelDrivenInterceptor would use the standard OGNL process, which would proceed down the stack looking for the setUpload method... although I think relying on hidden behavior like this in this case is unclear.

Are there any other messages in the log? Is devMode on?