提供兩種方式
/**
* byte[] 轉16進制字元串
* @param b
* @return
*/
public static String bytes_String16(byte[] b) {
char[] _16 = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
StringBuilder sb = new StringBuilder();
for(int i = 0 ; i<b.length;i++) {
sb.append(_16[b[i]>>4&0xf])
.append(_16[b[i]&0xf]);
}
return sb.toString();
}
public String bytes_String16(byte[] b) {
StringBuilder sb = new StringBuilder();
for(int i=0;i<b.length;i++) {
sb.append(String.format("%02x", b[i]));
}
return sb.toString();
}