How to upload dat file using JSP, Java (Struts.)?

Question

I need to upload .dat file from jsp page. I am using struts. I am using

<input type="file" name="file"  size=25 />

in jsp and in action class

FileUploadForm uploadForm = (FileUploadForm) form;
FormFile file = uploadForm.getFile();
InputStream stream = file.getInputStream();

After this I am confused. I dont want to open and read the dat file as the size of the may be big. I just wanna create/copy the same dat file in some specified path in server as per the original name of the dat file. How to do it?

And if there is no other way but read it then also tell me how read and write it to dat file.

Perception · Accepted Answer · 2012-04-11 04:54:47Z

1

These are the tasks you need to complete in order to finish this task:

Decide where uploaded files are to be stored on the server
Open an output stream to a file in the appropriate location
Copy from the uploaded data from it's input stream to the output stream

Here is some pseudo-code, utilizing Apache IOUtils to copy the stream data:

final FormFile formFile = uploadForm.getFile();
final String outPath = "/somerootpath/" + formFile.getFileName();
final OutputStream outStream = new FileOutputStream(outPath);
IOUtils.copy(formFile.getInputStream(), outStream);
IOUtils.closeQuietly(outStream);

answered Apr 11, 2012 at 4:54

Perception

80.8k19 gold badges190 silver badges197 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Sweet Dream Over a year ago

Thank you very much for the answer. But compiler error is coming and saying "The method IOUtils.copy(InputStream, OutputStream) is undefined for the type IOUtils" and same for IOUtils.closeQuietly(outStream);

Perception Over a year ago

To use Apache IOUtils you need to download it and include the JAR in your build path.

Collectives™ on Stack Overflow

How to upload dat file using JSP, Java (Struts.)?

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related