String name = "中文";
byte[] gbkbytes = name.getBytes("ISO-8859-1");
for (int i = 0; i < gbkbytes.length; i ++) {
System.out.printf("0x%02X ", gbkbytes[i]);
}
System.out.println();
原文：http://www.cnblogs.com/zhenmingliu/p/5126725.html