微博API开发

  1 package step0;
  2 
  3 
  4 /**
  5  * 
  6     * @ClassName: Mid2IdUtil Java版
  7     * @Description:  新浪uid转url (id转mid)
  8     * @author zeze
  9     * @date 2016年4月10日 上午10:49:40 
 10     *
 11  */
 12 public class Id2MidUtil {
 13     public static void main(String[] args) {
 14         System.out.println(Uid2Mid("Aw8Wrzaes"));
 15         System.out.println(Mid2Uid("3676608718380816"));//Mid2Id
 16     }
 17     private static String[] str62keys = { "0", "1", "2", "3", "4", "5", "6",
 18             "7", "8", "9", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j",
 19             "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w",
 20             "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
 21             "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W",
 22             "X", "Y", "Z" };
 23 
 24     public static String IntToEnode62(Integer int10) {
 25         String s62 = "";
 26         int r = 0;
 27         while (int10 != 0) {
 28             r = int10 % 62;
 29             s62 = str62keys[r] + s62;
 30             int10 = (int) Math.floor(int10 / 62.0);
 31         }
 32         return s62;
 33     }
 34     
 35      //62进制转成10进制
 36     public static String Str62toInt(String str62)
 37     {
 38         long i64 = 0;
 39         for (int i = 0; i < str62.length(); i++)
 40         {
 41             long Vi = (long)Math.pow(62, (str62.length() - i - 1));
 42             String t = str62.substring(i,i+1);
 43            
 44             i64 += Vi * findindex(t);
 45         }
 46        // System.out.println(i64);
 47         return Long.toString(i64);
 48     }
 49     
 50     public static int findindex(String t)
 51     {
 52         int index=0;
 53         for(int i=0;i<str62keys.length;i++)
 54         {
 55             if(str62keys[i].equals(t)){
 56                 index=i;
 57                 break;
 58             }
 59         }
 60         return index;
 61     }
 62  
 63      public static String Uid2Mid(String mid)
 64         {
 65             String id = "";
 66             for (int i = mid.length() - 4; i > -4; i = i - 4) //从最后往前以4字节为一组读取URL字符
 67             {
 68                 int offset1 = i < 0 ? 0 : i;
 69                 int len = i < 0 ? mid.length() % 4 : 4;
 70                 
 71                 String str = mid.substring(offset1, offset1+len);
 72                // System.out.println(offset1+" "+len+" "+str);
 73                 
 74                 str = Str62toInt(str);
 75                 
 76                 if (offset1 > 0) //若不是第一组，则不足7位补0
 77                 {
 78                     while (str.length() < 7)
 79                     {
 80                         str = "0" + str;
 81                     }
 82                 }
 83                 id = str + id;
 84             }
 85 
 86             return id;
 87         }
 88     
 89     
 90     public static String Mid2Uid(String str10) {
 91         String mid = "";
 92         int count = 1 ;
 93         for (int i = str10.length() - 7; i > -7; i = i - 7) // 从最后往前以7字节为一组读取字符
 94         {
 95             int offset = i < 0 ? 0 : i;
 96             int len = i < 0 ? str10.length() % 7 : 7;
 97             String temp = str10.substring(offset, offset + len);
 98             String url =IntToEnode62(Integer.valueOf(temp));
 99             if(count!=3){//z xghm uXym 生成的链接从右往左的前2组，4位一组，不足4位的补0
100                 for(int j=0;j<4-url.length();j++){
101                     url = "0"+url;
102                 }
103             }
104             mid = url+mid;                       
105                       count++;
106                }
107         return mid;
108     }
109 }