java application reads data from card reader

java device device-driver smartcard javacard
Cratylus picture Cratylus · Jan 15, 2011 · Viewed 8k times · Source

If someone wants to write a java application that interacts with a physical device, specifically a reader (e.g. as when you go in a hotel, gym, bank etc and you pass the card through a reader and the application finds you in the database) how is this done?
Is there a java api to interact with the reader and get the cards data?
When a company creates a reader (physical device) does it provide relevant apis?
Are the physical details abstracted from the application programmer?
I need to interact with a reader in java but I do not know how to start.
Any input is highly welcome!

Thanks

Answer

usr-local-ΕΨΗΕΛΩΝ picture usr-local-ΕΨΗΕΛΩΝ · Jan 15, 2011

You can start playing with the javax.smartcardio package.

It's an official Oracle product to allow smart card interaction. This doesn't solve the general problem of device communication (in Unix, simply open /dev/whatever0 with right permissions as it was a file), but may help you with your smart card scenario.

Related questions

android device id confusion

If I dial * # * # 8 2 5 5 # * # * , I get my android device id which starts with android-35c2acdd... source If I use Settings.Secure.getString(getContentResolver(), Settings.Secure.ANDROID_ID) the result starts with a96b4b27... If I use ((TelephonyManager) Context.getSystemService(…

Read More
How to use JAVA to control LED light connecting to PC via USB/SerialPort/etc.? What device should I use?

I would like to write a program in JAVA which can control LED lights connecting to "something" that is connected to the computer. JAVA program will consist of 8 toggle buttons in JFrame. The buttons are numbered from 1 to 8, and when …

Read More
How do I convert a String to an int in Java?

How can I convert a String to an int in Java? My String contains only numbers, and I want to return the number it represents. For example, given the string "1234" the result should be the number 1234.

Read More