[轉] java byte[] hex列印

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import javax.xml.bind.DatatypeConverter;import java.io.UnsupportedEncodingException;public class test {    public static void main(String[] args) throws UnsupportedEncodingException{         //print hex string version of HELLO WORLD        byte[] helloBytes = "HELLO WORLD".getBytes();        String helloHex = DatatypeConverter.printHexBinary(helloBytes);        System.out.printf("Hello hex: 0x%s\n", helloHex);         //convert hex-encoded string back to original string        byte[] decodedHex = DatatypeConverter.parseHexBinary(helloHex);        String decodedString = new String(decodedHex, "UTF-8");        System.out.printf("Hello decoded : %s\n", decodedString);        }}

final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();public static String bytesToHex(byte[] bytes) {    char[] hexChars = new char[bytes.length * 2];    for ( int j = 0; j < bytes.length; j++ ) {        int v = bytes[j] & 0xFF;        hexChars[j * 2] = hexArray[v >>> 4];        hexChars[j * 2 + 1] = hexArray[v & 0x0F];    }    return new String(hexChars);}

private static final char[] hexCode = "0123456789ABCDEF".toCharArray();    public String printHexBinary(byte[] data) {        StringBuilder r = new StringBuilder(data.length * 2);        for (byte b : data) {            r.append(hexCode[(b >> 4) & 0xF]);            r.append(hexCode[(b & 0xF)]);        }        return r.toString();    }

轉自：http://blog.csdn.net/x_iya/article/details/54136799

[轉] java byte[] hex列印