servlet and messaging

Hi
I want to develop a small application with the following requirement:

I need a servlet(or any java program) which will run in tomcat, waiting to receive XML files form another application B. Once an XML message is received my application will store the XML in a database and send back a message to B.

I am lost about where to start and how to go ahead.
Will it be possible for anyone to give me some idea, sketch, skeleton of how to go ahead ?

Your help will be deeply appreciated.

Thanks
Kawa

you've described the inner workings of your servlet quite well. Now all you have to do is translate it into code.

That part is your job, if you run into trouble with well specified parts of that process people will be happy to give you assistance for those specific problems but don't expect us to write the whole thing for you...

I want to know do I need to use JMS (I haven't used it before)?

- What do i need to write to receive XML ?
- How do I write it to dB ( Do I need to write entity bean for this? )
- How do i send a message back to the sender (app B) that the an XML is received ?

I am not asking someone to write it for me , but I would like someone to drive and give me some input of how to go about with it .

Thanks

- What do i need to write to receive XML ?
- How do I write it to dB ( Do I need to write entity bean for this? )
- How do i send a message back to the sender (app B) that the an XML is received ?

have a look at javax.jms.TextMessage, plus javax.jms.Topic or javax.jms.Queue

You don't need an Entity Bean, though feel free to use one if you like. You may also consider JDBC, JDO or an ORM layer (Toplink, Hibernate etc.)

Read javax.jms.Message. It covers how delivery can be acknowleded.

Does anybody know of any link which shows how to read an file(XML), acknowledge receipt and store the file in a folder in the filesystem.

"G Kawa"-
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