JavaBoutique : Articles : Open Source Shopping Cart:

Cart for Multiple Merchants

When I demonstrated the small business version of the shopping cart to a firm in Seattle, they asked whether it would be possible to place multiple merchants, all hosted on the same site, onto one frame, so that all purchases could be updated at any time in the browsing experience, and finalized simultaneously. You can see the result at http://209.87.142.42/is2.

To handle multiple merchants, I rewrote class ShopPanel as follows:

Click here for the third .java code example

The boilerplate code for each HTML page was altered in the following way:

<APPLET code=app.class height=1 id=app name=app width=1 archive="app.zip" VIEWASTEXT>
	<param name=start value="25">
	<param name=length value="3">
</APPLET>
<SCRIPT LANGUAGE=javascript>function buy(a,b,c,d){document.app.prod(a,b,c,d)}</SCRIPT>

The <APPLET> tag of course would also need an appropriate CODEBASE="whatever" addition, as described previously, and demonstrated in the source code at http://209.87.142.42/is1.

The big change in ShopPanel was the addition of two applet parameters and their associated code, and the removal of the optional database. This resulted in code that was now only 13K in length.

NEXT ->

How to Add Java Applets to Your Site

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