I am thinking about build a online store for my wife to sale something. we need database for customer info and goods info. we also need shopping cart for customers to use. I have yrs java experience but no web experience (know a little about jsp and servlet). I am thinking using wicket and other java technologies plus MySQL to build it. but I am open to other options. I am willing to learn new things.
what's your expert views? thanks,
Google App Engine appears to be targeted at exactly your problem, especially in their "free to learn and test, and buy capacity as needed" approach.
If you're interested in off-the-shelf solutions you can tinker with, you may want to look in the direction of Magento, Spree or if you want to avoid getting your hands dirty with coding at all** try Shopify.
** Well, sounds like you do want to get your hands dirty ;)
Personally, I'd look at systems that are already out there, such as Magento or OSCommerce. Why reinvent the wheel, especially with all the cool features that already exist? Plus, doing online stores, the number one priority is security. Most likely the systems that are being used by thousands of stores will have better security than one you create yourself, no matter how experienced you are, as there's thousands of people looking and finding the holes.