Where can I handle Exceptions in MVC Java?
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I am coding GUI application for exchange and synchronize data between company's Accounting software and e-commerce system (internet shop).

I want to create it using MVC (Model-View-Controller) Design Pattern.

Part of my application is function which overwrite e-commerce inventory balance with this from accounting software.

I've got 

 1. View - JDialog presenting progress of overwriting. 
 2. Controller - responsible for interaction between db's and view 
 3. Model - data from dbs and app's settings

When I queuing the database I must catch an exception (ClassNotFound and SQL).

**Where I should create try {} catch {} block? In View? or in Controller?** <br />
I want to present some JOptionPane with error message and finish some state of application.