Is java servlet a good way for developing a website

Hi,
i am developing a website that has to download huge data and upload huge data .also money transactions through credit cards need to be involved.is java servlet a good way to do this or should i use an ejb or any other technology.
Any help is appreciated.

Thanks for the reply.But di i need to use threading of some sort or can i directly write private methods to fulfill the purpose.Also is there any way my servlet can recognise when a device is connected to a usb port of local machine
any help is appreciated

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Is java servlet a good way for developing a website

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