下面直接貼代碼
1. 將GB2312轉化為中文,如BAFAC2DCB2B7→胡蘿卜,兩個字節合成一個文字
Java代碼
- public static String stringToGbk(String string) throws Exception {
- byte[] bytes = new byte[string.length() / 2];
- for (int j = 0; j < bytes.length; j++) {
- byte high = Byte.parseByte(string.substring(j * 2, j * 2 + 1), 16);
- byte low = Byte.parseByte(string.substring(j * 2 + 1, j * 2 + 2),
- 16);
- bytes[j] = (byte) (high << 4 | low);
- }
- String result = new String(bytes, "GBK");
- return result;
- }
2.將中文轉化為GB2312,並且結果以byte[]形式返回,如胡蘿卜→new byte[]{BA FA C2 DC B2 B7},一個字被分為兩個字節
Java代碼
- public static byte[] gbkToString(String str) throws Exception {
- return new String(str.getBytes("GBK"), "gb2312").getBytes("gb2312");
- }
3.將十六進制的byte[]原封不動的轉化為string,如byte[]{0x7e,0x80,0x11,0x20}→7e801120,可用於log打印
Java代碼
- 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();
- }
4.將十六進制的byte[]原封不動的轉化為string,並且每個byte之間用空格分開,如byte[]{0x7e,0x80,0x11,0x20}→7e 80 11 20,,可用於log打印
Java代碼
- public static StringBuilder byte2HexStr(byte[] data) {
-
- if (data != null && data.length > 0) {
- StringBuilder stringBuilder = new StringBuilder(data.length);
- for (byte byteChar : data) {
- stringBuilder.append(String.format("%02X ", byteChar));
- }
- return stringBuilder;
- }
- return null;
- }
5.將byte[]數組轉化為8、10、16等各種進制,例如byte[0x11,0x20]→4384,約等於1120(16進制)→4384,radix代表進制
Java代碼
- public static String bytesToAllHex(byte[] bytes, int radix) {
- return new BigInteger(1, bytes).toString(radix);// 這裡的1代表正數
- }
6.將String的十六進制原封不動轉化為byte的十六進制,例如7e20→new byte[]{0x7e,x20}
Java代碼
- public static byte[] HexString2Bytes(String src) {
- byte[] ret = new byte[src.length() / 2];
- byte[] tmp = src.getBytes();
- for (int i = 0; i < tmp.length / 2; i++) {
- ret[i] = uniteBytes(tmp[i * 2], tmp[i * 2 + 1]);
- }
- return ret;
- }
Java代碼
- public static byte uniteBytes(byte src0, byte src1) {
- byte _b0 = Byte.decode("0x" + new String(new byte[] { src0 }))
- .byteValue();
- _b0 = (byte) (_b0 << 4);
- byte _b1 = Byte.decode("0x" + new String(new byte[] { src1 }))
- .byteValue();
- byte ret = (byte) (_b0 ^ _b1);
- return ret;
- }