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Posted to users@tomcat.apache.org by Asare Samuel <s_...@yahoo.co.uk> on 2007/06/05 14:29:46 UTC
Java-Ecommerce
I am trying to create using a small sales tool like that of amazon(ie shopping cart, checkout).
1)Just wondered if there is already a interface for this already.
2)Also how do i go about creating the actual money transactions? Do I use paypall.
3)How do you prevent double purchasing-eg one product in stock-user1 is the first to put it in cart but continues to shop. User2 comes along and puts same product in cart but goes to checkout quicker.
I know you could edit the stock level as soon as a product is added to a cart. But really technically the product is not sold until confirmation in checkout. And the user may not even buy.
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Re: Java-Ecommerce
Posted by Martin Gainty <mg...@hotmail.com>.
Sam-
Depends on the backend you're using
Are you using a DB with a JDBC Datasource?
M--
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----- Original Message -----
From: "Asare Samuel" <s_...@yahoo.co.uk>
To: <us...@tomcat.apache.org>
Sent: Tuesday, June 05, 2007 8:29 AM
Subject: Java-Ecommerce
>I am trying to create using a small sales tool like that of amazon(ie
>shopping cart, checkout).
>
> 1)Just wondered if there is already a interface for this already.
>
> 2)Also how do i go about creating the actual money transactions? Do I use
> paypall.
>
> 3)How do you prevent double purchasing-eg one product in stock-user1 is
> the first to put it in cart but continues to shop. User2 comes along and
> puts same product in cart but goes to checkout quicker.
>
> I know you could edit the stock level as soon as a product is added to a
> cart. But really technically the product is not sold until confirmation in
> checkout. And the user may not even buy.
>
>
> ---------------------------------
> Yahoo! Answers - Got a question? Someone out there knows the answer. Tryit
> now.
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Re: [OT] Java-Ecommerce
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Asare,
This sounds like a request for a consulting engagement. I'm sure many of
us would be glad to sell our services for this type of request.
As it is both off-topic and more relevant to solving general problems, I
don't think you'll get too many in-depth replies.
See below for terse ones.
Asare Samuel wrote:
> I am trying to create using a small sales tool like that of amazon(ie
> shopping cart, checkout).
>
> 1)Just wondered if there is already a interface for this already.
Do you mean a GUI? AFAIK, nobody really sells or provides GUIs out of
the box. You generally have to create your own by adopting things you
like about existing sites.
> 2)Also how do i go about creating the actual money transactions? Do I
> use paypall.
Paypal is not a requirement, but is an option. There are lots of credit
card processors out there. Make sure you read about "PCI Guidelines"
which dictate how you must treat credit card data if you choose to do
the transactions yourself (instead of using something like paypal's
pay-it-at-paypal's-site service).
> 3)How do you prevent double purchasing-eg one product in stock-user1
> is the first to put it in cart but continues to shop. User2 comes
> along and puts same product in cart but goes to checkout quicker.
That's a semi-complex problem that has multiple solutions depending on
other requirements.
Good luck,
- -chris
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Re: Java-Ecommerce
Posted by Kristian Rink <kr...@zimmer428.net>.
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Samuel;
[Asare Samuel <s_...@yahoo.co.uk> @ Tue, 5 Jun 2007 05:29:46 -0700
(PDT)]
> 1)Just wondered if there is already a interface for this already.
There is a bunch of online shopping solutions out in the wild, most of
them proprietary and/or expensive (I wonder whether there are any
usable open-source JEE based web shops out there?)
> 2)Also how do i go about creating the actual money transactions? Do
> I use paypall.
This is likely to be part of either what the shop system you will make
use of offers, or part of your specifications of what your shop system
is likely to do.
> 3)How do you prevent double purchasing-eg one product in
> stock-user1 is the first to put it in cart but continues to shop.
> User2 comes along and puts same product in cart but goes to checkout
> quicker. I know you could edit the stock level as soon as a product
You could go with more than two different states per item in your stock
("available", "reserved" == someone put it in its cart but hasn't
checked out yet, "sold" or something like that). Of course, you have to
be sure to handle these states in a meaningful way, i.e. take care to
"expire" product reservations after a sane amount of time has passed
(to deal with people who fill up their cart but never actually check
out and/or buy anything...).
Are you about to build a system like this? If so, how much of the
specification / design work did you do so far?
Cheers,
Kris
- --
Kristian Rink * http://zimmer428.net * http://flickr.com/photos/z428/
jab: kawazu@jabber.ccc.de * icq: 48874445 * fon: ++49 176 2447 2771
"One dreaming alone, it will be only a dream; many dreaming together
is the beginning of a new reality." (Hundertwasser)
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Re: [OT] RE: Java-Ecommerce
Posted by Martin Gainty <mg...@hotmail.com>.
Good Call!
There are a couple of ways to persist customer information such as writing
customer info to cookies, serialisation or writing to DB
My personal favorite is SSB so I suggest ensuring your selected Shopping
Cart System supports Stateful Session Beans
http://java.sun.com/blueprints/guidelines/designing_enterprise_applications/ejb_tier/session_beans/index.html
sounds like a fun project..please keep us apprised of your progress
Martin--
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----- Original Message -----
From: "Asare Samuel" <s_...@yahoo.co.uk>
To: "Tomcat Users List" <us...@tomcat.apache.org>
Sent: Tuesday, June 05, 2007 9:09 AM
Subject: Re: [OT] RE: Java-Ecommerce
> Thanks peter and all those that replied. I think I will take peter's
> advice and find a tool rather than reinvent the wheel. Thanks
>
> Peter Crowther <Pe...@melandra.com> wrote: [Marked off-topic
> because this has nothing at all to do with Tomcat]
>
>> From: Asare Samuel [mailto:s_asare@yahoo.co.uk]
>> I am trying to create using a small sales tool like that of
>> amazon(ie shopping cart, checkout).
>
> There are many of these around already. You will pay less to buy a
> license to an existing tool than you will in time to create your own -
> don't reinvent the wheel.
>
>> 1)Just wondered if there is already a interface for this already.
>
> Many. Search for "java shopping cart" on Google.
>
>> 2)Also how do i go about creating the actual money
>> transactions? Do I use paypall.
>
> Again, there are many options, depending on transaction volume, size,
> security, what methods of payment you want your users to be able to
> use... most of the commercial carts integrate with several different
> payment providers, or search for "payment provider" on Google. I've
> used WorldPay most recently; this is not an endorsement, merely a note.
>
>> 3)How do you prevent double purchasing-eg one product in
>> stock-user1 is the first to put it in cart but continues to
>> shop. User2 comes along and puts same product in cart but
>> goes to checkout quicker.
>>
>> I know you could edit the stock level as soon as a product
>> is added to a cart. But really technically the product is not
>> sold until confirmation in checkout. And the user may not even buy.
>
> Sorry, you're trying to have your cake and eat it here. EITHER you're
> optimistic and let both users put the product in their cart (but allow
> double-purchasing) OR you're pessimistic and only let one user put the
> product in their cart (and accept that in low-stock situations you won't
> get some sales). There's no way of doing both - about the best you can
> do is keep separate "stock level" and "quantity in carts" levels. But
> this is irrelevant, because you really, really don't want the pain of
> maintaining your own solution; you want to buy someone else's solution.
> Honest. It'll save money, time and pain in the long run.
>
> - Peter
>
> ---------------------------------------------------------------------
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> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>
>
>
>
> ---------------------------------
> Yahoo! Answers - Got a question? Someone out there knows the answer. Tryit
> now.
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Re: [OT] RE: Java-Ecommerce
Posted by James McIntosh <ja...@snaphire.com>.
My recommendation is www.konacart.com for a open-source java ecommerce
because it is based on OS-commerce
On Tue, 2007-06-05 at 06:09 -0700, Asare Samuel wrote:
> Thanks peter and all those that replied. I think I will take peter's advice and find a tool rather than reinvent the wheel. Thanks
>
> Peter Crowther <Pe...@melandra.com> wrote: [Marked off-topic because this has nothing at all to do with Tomcat]
>
> > From: Asare Samuel [mailto:s_asare@yahoo.co.uk]
> > I am trying to create using a small sales tool like that of
> > amazon(ie shopping cart, checkout).
>
> There are many of these around already. You will pay less to buy a
> license to an existing tool than you will in time to create your own -
> don't reinvent the wheel.
>
> > 1)Just wondered if there is already a interface for this already.
>
> Many. Search for "java shopping cart" on Google.
>
> > 2)Also how do i go about creating the actual money
> > transactions? Do I use paypall.
>
> Again, there are many options, depending on transaction volume, size,
> security, what methods of payment you want your users to be able to
> use... most of the commercial carts integrate with several different
> payment providers, or search for "payment provider" on Google. I've
> used WorldPay most recently; this is not an endorsement, merely a note.
>
> > 3)How do you prevent double purchasing-eg one product in
> > stock-user1 is the first to put it in cart but continues to
> > shop. User2 comes along and puts same product in cart but
> > goes to checkout quicker.
> >
> > I know you could edit the stock level as soon as a product
> > is added to a cart. But really technically the product is not
> > sold until confirmation in checkout. And the user may not even buy.
>
> Sorry, you're trying to have your cake and eat it here. EITHER you're
> optimistic and let both users put the product in their cart (but allow
> double-purchasing) OR you're pessimistic and only let one user put the
> product in their cart (and accept that in low-stock situations you won't
> get some sales). There's no way of doing both - about the best you can
> do is keep separate "stock level" and "quantity in carts" levels. But
> this is irrelevant, because you really, really don't want the pain of
> maintaining your own solution; you want to buy someone else's solution.
> Honest. It'll save money, time and pain in the long run.
>
> - Peter
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
> ---------------------------------
> Yahoo! Answers - Got a question? Someone out there knows the answer. Tryit now.
---------------------------------------------------------------------
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Re: [OT] RE: Java-Ecommerce
Posted by Asare Samuel <s_...@yahoo.co.uk>.
Thanks peter and all those that replied. I think I will take peter's advice and find a tool rather than reinvent the wheel. Thanks
Peter Crowther <Pe...@melandra.com> wrote: [Marked off-topic because this has nothing at all to do with Tomcat]
> From: Asare Samuel [mailto:s_asare@yahoo.co.uk]
> I am trying to create using a small sales tool like that of
> amazon(ie shopping cart, checkout).
There are many of these around already. You will pay less to buy a
license to an existing tool than you will in time to create your own -
don't reinvent the wheel.
> 1)Just wondered if there is already a interface for this already.
Many. Search for "java shopping cart" on Google.
> 2)Also how do i go about creating the actual money
> transactions? Do I use paypall.
Again, there are many options, depending on transaction volume, size,
security, what methods of payment you want your users to be able to
use... most of the commercial carts integrate with several different
payment providers, or search for "payment provider" on Google. I've
used WorldPay most recently; this is not an endorsement, merely a note.
> 3)How do you prevent double purchasing-eg one product in
> stock-user1 is the first to put it in cart but continues to
> shop. User2 comes along and puts same product in cart but
> goes to checkout quicker.
>
> I know you could edit the stock level as soon as a product
> is added to a cart. But really technically the product is not
> sold until confirmation in checkout. And the user may not even buy.
Sorry, you're trying to have your cake and eat it here. EITHER you're
optimistic and let both users put the product in their cart (but allow
double-purchasing) OR you're pessimistic and only let one user put the
product in their cart (and accept that in low-stock situations you won't
get some sales). There's no way of doing both - about the best you can
do is keep separate "stock level" and "quantity in carts" levels. But
this is irrelevant, because you really, really don't want the pain of
maintaining your own solution; you want to buy someone else's solution.
Honest. It'll save money, time and pain in the long run.
- Peter
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---------------------------------
Yahoo! Answers - Got a question? Someone out there knows the answer. Tryit now.
[OT] RE: Java-Ecommerce
Posted by Peter Crowther <Pe...@melandra.com>.
[Marked off-topic because this has nothing at all to do with Tomcat]
> From: Asare Samuel [mailto:s_asare@yahoo.co.uk]
> I am trying to create using a small sales tool like that of
> amazon(ie shopping cart, checkout).
There are many of these around already. You will pay less to buy a
license to an existing tool than you will in time to create your own -
don't reinvent the wheel.
> 1)Just wondered if there is already a interface for this already.
Many. Search for "java shopping cart" on Google.
> 2)Also how do i go about creating the actual money
> transactions? Do I use paypall.
Again, there are many options, depending on transaction volume, size,
security, what methods of payment you want your users to be able to
use... most of the commercial carts integrate with several different
payment providers, or search for "payment provider" on Google. I've
used WorldPay most recently; this is not an endorsement, merely a note.
> 3)How do you prevent double purchasing-eg one product in
> stock-user1 is the first to put it in cart but continues to
> shop. User2 comes along and puts same product in cart but
> goes to checkout quicker.
>
> I know you could edit the stock level as soon as a product
> is added to a cart. But really technically the product is not
> sold until confirmation in checkout. And the user may not even buy.
Sorry, you're trying to have your cake and eat it here. EITHER you're
optimistic and let both users put the product in their cart (but allow
double-purchasing) OR you're pessimistic and only let one user put the
product in their cart (and accept that in low-stock situations you won't
get some sales). There's no way of doing both - about the best you can
do is keep separate "stock level" and "quantity in carts" levels. But
this is irrelevant, because you really, really don't want the pain of
maintaining your own solution; you want to buy someone else's solution.
Honest. It'll save money, time and pain in the long run.
- Peter
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