java将unicode转为汉字

格式为：\uxxxx（4个x）

PREFIX_UNICODE = “\u”;

public static String ascii2Native(String str) {    StringBuilder sb = new StringBuilder();    int begin = 0;    int index = str.indexOf(PREFIX_UNICODE);    while (index != -1) {        sb.append(str.substring(begin, index));        sb.append(ascii2Char(str.substring(index, index + 6)));        begin = index + 6;        index = str.indexOf(PREFIX_UNICODE, begin);    }    sb.append(str.substring(begin));    return sb.toString();}

private static char ascii2Char(String str) {        if (str.length() != 6) {            throw new IllegalArgumentException("Ascii string of a native character must be 6 character.");        }        if (!PREFIX_UNICODE.equals(str.substring(0, 2))) {            throw new IllegalArgumentException("Ascii string of a native character must start with \"\\u\".");        }        String tmp = str.substring(2, 4);        // 将十六进制转为十进制        int code = Integer.parseInt(tmp, 16) << 8; // 转为高位，后与地位相加        tmp = str.substring(4, 6);        code += Integer.parseInt(tmp, 16); // 与低8为相加        return (char) code;}

直接调用ascii2Native(String str)传入要转的字符串，就会将你字符串中unicode转为汉字！