public class UnicodeExchange {
public static void main(String args[]){
String s = "u6ca1u6709u90a3u4e2au6587u4ef6u6216u76eeu5f55";
System.out.println(s + "==>" + unicodeToString_2(s));
}
public static String unicodeToString(String unicode) {
if (unicode == null || "".equals(unicode)) {
return null;
}
StringBuilder sb = new StringBuilder();
int i = -1;
int pos = 0;
while ((i = unicode.indexOf("\\u", pos)) != -1) {
sb.append(unicode.substring(pos, i));
if (i + 5 < unicode.length()) {
pos = i + 6;
sb.append((char) Integer.parseInt(unicode.substring(i + 2, i + 6), 16));
}
}
return sb.toString();
}
public static String unicodeToString_2(String unicode) {
if (unicode == null || "".equals(unicode)) {
return null;
}
StringBuilder sb = new StringBuilder();
int i = -1;
int pos = 0;
while ((i = unicode.indexOf("u", pos)) != -1) {
sb.append(unicode.substring(pos, i));
if (i + 4 < unicode.length()) {
pos = i + 5;
sb.append((char) Integer.parseInt(unicode.substring(i + 1, i + 5), 16));
}
}
return sb.toString();
}
//编码
public static String stringToUnicode(String string) {
if (string == null || "".equals(string)) {
return null;
}
StringBuffer unicode = new StringBuffer();
for (int i = 0; i < string.length(); i++) {
char c = string.charAt(i);
unicode.append("\\u" + Integer.toHexString(c));
}
return unicode.toString();
}
}
