刚才看到C#的短网址算法，哪位能改成Java版本的

[niuzk0411]

public static string[] ShortUrl(string url)   
        {   
            //可以自定义生成MD5加密字符传前的混合KEY   
            string key = "Leejor";   
            //要使用生成URL的字符   
            string[] chars = new string[]{   
                "a","b","c","d","e","f","g","h",   
                "i","j","k","l","m","n","o","p",   
                "q","r","s","t","u","v","w","x",   
                "y","z","0","1","2","3","4","5",   
                "6","7","8","9","A","B","C","D",   
                "E","F","G","H","I","J","K","L",   
                "M","N","O","P","Q","R","S","T",   
                "U","V","W","X","Y","Z"   
  
              };   
            //对传入网址进行MD5加密   
            string hex = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(key + url, "md5");   
  
            string[] resUrl = new string[4];   
  
            for (int i = 0; i < 4; i++)   
            {   
                //把加密字符按照8位一组16进制与0x3FFFFFFF进行位与运算   
                int hexint = 0x3FFFFFFF & Convert.ToInt32("0x" + hex.Substring(i * 8, 8), 16);   
                string outChars = string.Empty;   
                for (int j = 0; j < 6; j++)   
                {   
                    //把得到的值与0x0000003D进行位与运算，取得字符数组chars索引   
                    int index = 0x0000003D & hexint;   
                    //把取得的字符相加   
                    outChars += chars[index];   
                    //每次循环按位右移5位   
                    hexint = hexint >> 5;   
                }   
                //把字符串存入对应索引的输出数组   
                resUrl[i] = outChars;   
            }   
  
            return resUrl;   
        }  

[niuzk0411]

没人知道吗？我替换了Convert.ToInt32("0x" + hex.Substring(i * 8, 8), 16); 之后还是不行
有知道的帮忙解决下！谢谢

[O溺水的鱼0]

我也正在算，算好了回复你。

[O溺水的鱼0]

package com.csdn.shorturl;

public class MyShortCutUrl {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String url = "http://tech.sina.com.cn/i/2011-03-23/11285321288.shtml";
		for (String string : ShortText(url)) {
			System.out.println(string);
		}

	}

	public static String[] ShortText(String string) {
		String key = "XuLiang"; // 自定义生成MD5加密字符串前的混合KEY
		String[] chars = new String[] { // 要使用生成URL的字符
		"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n",
				"o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z",
				"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B",
				"C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N",
				"O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" };

		String hex = (new CMyEncrypt()).getMD5OfStr(key + string);
		int hexLen = hex.length();
		int subHexLen = hexLen / 8;
		String[] ShortStr = new String[4];

		for (int i = 0; i < subHexLen; i++) {
			String outChars = "";
			int j = i + 1;
			String subHex = hex.substring(i * 8, j * 8);
			long idx = Long.valueOf("3FFFFFFF", 16) & Long.valueOf(subHex, 16);

			for (int k = 0; k < 6; k++) {
				int index = (int) (Long.valueOf("0000003D", 16) & idx);
				outChars += chars[index];
				idx = idx >> 5;
			}
			ShortStr[i] = outChars;
		}

		return ShortStr;
	}

}