base62 썸네일형 리스트형 Base62 encoding decoding public class Base62 { final int RADIX = 62; final String CODEC = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; public String encoding(long param) { StringBuffer sb = new StringBuffer(); while(param > 0) { sb.append(CODEC.charAt((int) (param % RADIX))); param /= RADIX; } return sb.toString(); } public long decoding(String param) { long sum = 0; long power = 1; for (int i = 0; i 이전 1 다음