import java.io.ByteArrayOutputStream;
public class test {
private static String hexString = "0123456789ABCDEFabcdef";
//private static String hexString = "0123456789abcdefABCDEF";
/**
* @param args
*/
public static void main(String[] args) {
String msg= "亲,你好";
byte[] bytes = msg.getBytes();
StringBuilder sb = new StringBuilder(bytes.length * 2);
//转换hex编码
for (byte b : bytes) {
sb.append(Integer.toHexString(b + 0x800).substring(1));
}
//转换后的代码为c7d7a3acc4e3bac3
msg = sb.toString();
System.out.println(msg);
//再次转换为string
System.out.println(decode(msg));
//System.out.println(msg);
}
//把hex编码转换为string
public static String decode(String bytes) {
bytes = bytes.toUpperCase();
ByteArrayOutputStream baos = new ByteArrayOutputStream(bytes.length() / 2);
// 将每2位16进制整数组装成一个字节
for (int i = 0; i < bytes.length(); i += 2)
baos.write((hexString.indexOf(bytes.charAt(i)) << 4 | hexString.indexOf(bytes.charAt(i + 1))));
return new String(baos.toByteArray());
}
}