Problem to accessing Mysql remote database

First m very sorry!! for that i m asking question again related to accessing data from server.

i am new in iphone and am making a application in which require to access mysql database which is hosted on remote server,

1. I take a server and create our database on the server so i have URL of the server,User Name,Password,Port Number.
2. I make a servlet for accessing data from the server database and generate the xml file.
3. I make my application and with the use of xm开发者_Go百科l parser i use the data in my application.

but problem is this,

where i put my servlet which give xml file when required in my application,

1. On the Server?
2. In the Application?

i m confuse how i use servlet in my application.

If u have any reference or source code then please suggest.

Thanks,

Arun

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It probably would be better to put it in the application so that your reducing the need to call the server for the details.