java Unicode与中文互换

static String string2Unicode(String s) {
try {
StringBuffer out = new StringBuffer("");
byte[] bytes = s.getBytes("unicode");
for (int i = 2; i < bytes.length - 1; i += 2) {
out.append("u");
String str = Integer.toHexString(bytes[i + 1] & 0xff);
for (int j = str.length(); j < 2; j++) {
out.append("0");
}
String str1 = Integer.toHexString(bytes[i] & 0xff);
out.append(str);
out.append(str1);
out.append(" ");
}
return out.toString().toUpperCase();
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}

static String unicode2String(String unicodeStr){
StringBuffer sb = new StringBuffer();
String str[] = unicodeStr.toUpperCase().split("U");
for(int i=0;i