Is JSP the right technology for this project?

Question

I'm heavy into core java, but haven't used JSP before. The project manager suggested JSP for this project, but since I'm writing the spec and the code, I need to determine if it's suitable for the task before committing to it.
Overly-simplified summary:
web-based application
simple form interface, fill in the blanks
user inputs a filename, and a piece of data or two to find within the file
application finds the (binary) file on the server, parses it into a known data structure, and finds the data element that contains the specified information.
application formats the data element and displays it in a web page.
user has the option to save the data in text format or as a binary file on the local machine
That's pretty much it. There are a few things that I'm concerned about, and am not sure whether JSPs are capable of handling:
1. searching the local hard drive (in known directories) for a specific file and opening it
2. creating, for instance, a MappedByteBuffer of a portion of the file and accessing data within it
3. saving data in text or binary format on the user's hard drive
If the JSP can run core java style code on the server, that answers 1 and 2 easily. 3 seems like it should be possible, but like I said, I've never used JSP.
Of course I'll look up the specifics myself, but perhaps someone who has been using this technology for a while can answer my simple question:
Is JSP a suitable tool for this job?

Answer 1

So this project looks like one that could be handled not no roughly using a combination of Servlets and JSP.
web-based application
simple form interface, fill in the blanksUse JSP for the displays. Forms, and such...
user inputs a filename, and a piece of data or two to
find within the file
application finds the (binary) file on the server,The file is on the server right? Good. Then use a Servlet to find the file. Better, actually, to use a Servlet to call some other PlainOldJavaObject that finds the file for you. That way you can test and code outside of the web environment then just integrate into Servlets/JSPs when needed...
parses it into a known data structure, and finds the
data element that contains the specified
information.Again, use Servlet, or a POJO object the Servlet calls to do this stuff.
application formats the data element and displays it
in a web page.Good thing for JSP to do. Just let the Servlet get the results back from the POJO doing the work, then store them such that the JSP can read results and format an HTML page around them.
user has the option to save the data in text format
or as a binary file on the local machineOn the client's local machine? That is doable, I think. Again, use a Servlet to pass what and how to save to a POJO that that does the work. Then the servlet streams the data to the client (using a content type that will ensure the download rather than display...)
That's pretty much it. There are a few things that
I'm concerned about, and am not sure whether JSPs are
capable of handling:
1. searching the local hard drive (in known
directories) for a specific file and opening itLocal meaning Server? Yes, best for Servlet/Data Access Object rather than a JSP though. Local as in Client machine: No.
2. creating, for instance, a MappedByteBuffer of a
portion of the file and accessing data within itServlets have full access to the normal Java API, but they run on the Server, so again, as long as the file is on the server... no problem.
3. saving data in text or binary format on the user's
hard driveYeah, easy. Just a quick download servlet. I believe there are a couple examples here in the forums. Other sites may have better ones...
If the JSP can run core java style code on the
server, that answers 1 and 2 easily.It can, but a little repetition here... this is best to do in Servlets rather than JSP. JSPs should be kept to display only.
3 seems like it
should be possible, but like I said, I've never used
JSP.
Of course I'll look up the specifics myself, but
perhaps someone who has been using this technology
for a while can answer my simple question:
Is JSP a suitable tool for this job?