Send NFC Command - Java javax.smartcardio

Java examples for javax.smartcardio:CardChannel

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Description

Send NFC Command

Demo Code


//package com.java2s;
import java.nio.ByteBuffer;

import javax.smartcardio.CardChannel;
import javax.smartcardio.CardException;

public class Main {
    public static String SendCommand(byte[] cmd, CardChannel channel) {
        String response = "";
        byte[] baResp = new byte[258];

        ByteBuffer bufCmd = ByteBuffer.wrap(cmd);
        ByteBuffer bufResp = ByteBuffer.wrap(baResp);

        int output = 0;

        try {/*from ww  w  .j av  a 2  s  . c om*/
            output = channel.transmit(bufCmd, bufResp);
        } catch (CardException ex) {
            ex.printStackTrace();
        }

        for (int i = 0; i < output; i++) {
            response += String.format("%02X", baResp[i]);
        }
        return response;
    }
}

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