File upload problem in struts 2 (emoving file attachment)

[Manish Shinde]

hi,

I have developed file upload application in struts 2.
Here File Upload Interceptor actually deletes the the uploaded file , once the
action is executed.
so before returning success I have called function to copy.
Here is my action class

package upload;
import java.io.*;
import javax.servlet.ServletContext;
import org.apache.struts2.ServletActionContext;

public class UploadAction {
private File attachment;
private String attachmentFileName;
private String attachmentContentType;
private String description;

    public File getAttachment() {
        return attachment;
    }

    public void setAttachment(File attachment) {
        this.attachment = attachment;
        System.out.println(attachment);
    }

    public String getAttachmentContentType() {
        return attachmentContentType;
    }

    public void setAttachmentContentType(String attachmentContentType) {
        this.attachmentContentType = attachmentContentType;
        System.out.println(attachmentContentType);
    }

    public String getAttachmentFileName() {
        return attachmentFileName;
    }

    public void setAttachmentFileName(String attachmentFileName) {
        this.attachmentFileName = attachmentFileName;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
        System.out.println(description);
    }
    public String execute() throws Exception
    {
      
     ServletContext servletContext = ServletActionContext.getServletContext();
     if (attachment != null)
     { // attachment will be null if there's an error,
       // such as if the uploaded file is too large
         
         String dataDir = servletContext.getRealPath("/WEB-INF");
         System.out.println(dataDir);
        File destination=new File(dataDir ,"newFile.txt");
         File savedFile = new File(dataDir, attachmentFileName);
         copy(attachment,des);
         //attachment.renameTo(savedFile);
     }
     return "success";
    }
   
public void copy(File src, File dst) throws IOException {
    InputStream in = new FileInputStream(src);
    OutputStream out = new FileOutputStream(dst);

    // Transfer bytes from in to out
    byte[] buf = new byte[1024];
    int len;
    while ((len = in.read(buf)) > 0) {
        out.write(buf, 0, len);
    }
    in.close();
    out.close();
}

}

questions
1)Is there any way to tell the interceptor not to delete that file ?
2)In line 56 of code ,I have specified destination path and file name with extension.
what if I want to upload .doc file then I'll have to change extension again ?


Regards,
Manish,

[Mohana Rao Sv]

The FileUpload interceptor is responsible for uploading the file once the upload is once it will remove the file immediately due to security reasons so we have to handle the file. Just save the file where you want to save it.
FileUtils.copyFile(attachment, fileDestination);