原文連結: http://zhidao.baidu.com/link?url=RmLDjr4PtP_oUE5J2pKNZSvlHt1K7HcCh4-03Y7VkXYhJ0kawg01CtKHZc2uBVxQsHgzl8pp60WBYULP6K15K_
以下3個方法能將byte[]轉化成16進位制字串,可以任選一個
/* *
* Convert byte[] to hex string.這裡我們可以將byte轉換成int,然後利用Integer.toHexString(int)
*來轉換成16進位制字串。
* @param src byte[] data
* @return hex string
*/
public static String bytesToHexString(byte[] src){
StringBuilder stringBuilder = new StringBuilder("");
if (src == null || src.length <= 0) {
return null;
}
for (int i = 0; i < src.length; i++) {
int v = src[i] & 0xFF;
String hv = Integer.toHexString(v);
if (hv.length() < 2) {
stringBuilder.append(0);
}
stringBuilder.append(hv);
}
return stringBuilder.toString();
}
public static String bytes2HexString(byte[] b) {
String ret = "";
for (int i = 0; i < b.length; i++) {
String hex = Integer.toHexString(b[i] & 0xFF);
if (hex.length() == 1) {
hex = "0" + hex;
}
ret += hex;
}
return ret;
}
public static String toHex(byte[] buffer) {
StringBuffer sb = new StringBuffer(buffer.length * 2);
for (int i = 0; i < buffer.length; i++) {
sb.append(Character.forDigit((buffer[i] & 240) >> 4, 16));
sb.append(Character.forDigit(buffer[i] & 15, 16));
}
return sb.toString();
}