/**
* 字符串转换成十六进制字符串
*/
public static String str2HexStr(String str) {
char[] chars = "0123456789ABCDEF".toCharArray();
StringBuilder sb = new StringBuilder("");
byte[] bs = str.getBytes();
int bit;
for (int i = 0; i < bs.length; i++) {
bit = (bs[i] & 0x0f0) >> 4;
sb.append(chars[bit]);
bit = bs[i] & 0x0f;
sb.append(chars[bit]);
}
return sb.toString();
}
/**
* 十六进制转换字符串
*/
public static String hexStr2Str(String hexStr) {
String str = "0123456789ABCDEF";
char[] hexs = hexStr.toCharArray();
byte[] bytes = new byte[hexStr.length() / 2];
int n;
for (int i = 0; i < bytes.length; i++) {
n = str.indexOf(hexs[2 * i]) * 16;
n += str.indexOf(hexs[2 * i + 1]);
bytes[i] = (byte) (n & 0xff);
}
return new String(bytes);
}
/**
* bytes转换成十六进制字符串
*/
public static String byte2HexStr(byte[] b) {
String hs="";
String stmp="";
for (int n=0;n<b.length;n++) {
stmp=(Integer.toHexString(b[n] & 0XFF));
if (stmp.length()==1) hs=hs+"0"+stmp;
else hs=hs+stmp;
//if (n<b.length-1) hs=hs+":";
}
return hs.toUpperCase();
}
private static byte uniteBytes(String src0, String src1) {
byte b0 = Byte.decode("0x" + src0).byteValue();
b0 = (byte) (b0 << 4);
byte b1 = Byte.decode("0x" + src1).byteValue();
byte ret = (byte) (b0 | b1);
return ret;
}
/**
* bytes转换成十六进制字符串
*/
public static byte[] hexStr2Bytes(String src) {
int m=0,n=0;
int l=src.length()/2;
System.out.println(l);
byte[] ret = new byte[l];
for (int i = 0; i < l; i++) {
m=i*2+1;
n=m+1;
ret[i] = uniteBytes(src.substring(i*2, m),src.substring(m,n));
}
return ret;
}
/**
*String的字符串转换成unicode的String
*/
public static String stringToUnicode(String strText) throws Exception {
char c;
String strRet = "";
int intAsc;
String strHex;
for (int i = 0; i < strText.length(); i++) {
c = strText.charAt(i);
intAsc = (int) c;
strHex = Integer.toHexString(intAsc);
if (intAsc > 128) {
strRet += "\\u" + strHex;
} else {
// 低位在前面补00
strRet += "\\" + strHex;
}
}
return strRet;
}
/**
*unicode的String转换成String的字符串
*/