新增Toolkit类

补充一个小小的工具类

新增一个类,名为net.wendal.nutzbook.util.Toolkit, 内容如下, 取自老的nutzwx项目

  1. package net.wendal.nutzbook.util;
  3. import javax.crypto.Cipher;
  4. import javax.crypto.SecretKey;
  5. import javax.crypto.spec.IvParameterSpec;
  6. import javax.crypto.spec.SecretKeySpec;
  8. import net.wendal.nutzbook.bean.User;
  10. import org.nutz.lang.Lang;
  11. import org.nutz.lang.random.R;
  12. import org.nutz.lang.util.NutMap;
  13. import org.nutz.log.Log;
  14. import org.nutz.log.Logs;
  17. public class Toolkit {
  19.     public static final Log log = Logs.get();
  21.     public static String captcha_attr = "nutz_captcha";
  23.     public static boolean checkCaptcha(String expected, String actual) {
  24.         if (expected == null || actual == null || actual.length() == 0 || actual.length() > 24)
  25.             return false;
  26.         return actual.equalsIgnoreCase(expected);
  27.     }
  29.     public static String passwordEncode(String password, String slat) {
  30.         String str = slat + password + slat + password.substring(4);
  31.         return Lang.digest("SHA-512", str);
  32.     }
  34.     private static final String Iv = "\0\0\0\0\0\0\0\0";
  35.     private static final String Transformation = "DESede/CBC/PKCS5Padding";
  37.     public static String _3DES_encode(byte[] key, byte[] data) {
  38.         SecretKey deskey = new SecretKeySpec(key, "DESede");
  39.         IvParameterSpec iv = new IvParameterSpec(Iv.getBytes());
  40.         try {
  41.             Cipher c1 = Cipher.getInstance(Transformation);
  42.             c1.init(Cipher.ENCRYPT_MODE, deskey, iv);
  43.             byte[] re = c1.doFinal(data);
  44.             return Lang.fixedHexString(re);
  45.         } catch (Exception e) {
  46.             log.info("3DES FAIL?", e);
  47.             e.printStackTrace();
  48.         }
  49.         return null;
  50.     }
  52.     public static String _3DES_decode(byte[] key, byte[] data) {
  53.         SecretKey deskey = new SecretKeySpec(key, "DESede");
  54.         IvParameterSpec iv = new IvParameterSpec(Iv.getBytes());
  55.         try {
  56.             Cipher c1 = Cipher.getInstance(Transformation);
  57.             c1.init(Cipher.DECRYPT_MODE, deskey, iv);
  58.             byte[] re = c1.doFinal(data);
  59.             return new String(re);
  60.         } catch (Exception e) {
  61.             log.debug("BAD 3DES decode", e);
  62.         }
  63.         return null;
  64.     }
  66.     public static NutMap kv2map(String kv) {
  67.         NutMap re = new NutMap();
  68.         if (kv == null || kv.length() == 0 || !kv.contains("="))
  69.             return re;
  70.         String[] tmps = kv.split(",");
  71.         for (String tmp : tmps) {
  72.             if (!tmp.contains("="))
  73.                 continue;
  74.             String[] tmps2 = tmp.split("=", 2);
  75.             re.put(tmps2[0], tmps2[1]);
  76.         }
  77.         return re;
  78.     }
  80.     public static String randomPasswd(User usr) {
  81.         String passwd = R.sg(10).next();
  82.         String slat = R.sg(48).next();
  83.         usr.setSalt(slat);
  84.         usr.setPassword(passwordEncode(passwd, slat));
  85.         return passwd;
  86.     }
  88.     public static byte[] hexstr2bytearray(String str) {
  89.         byte[] re = new byte[str.length() / 2];
  90.         for (int i = 0; i < re.length; i++) {
  91.             int r = Integer.parseInt(str.substring(i*2, i*2+2), 16);
  92.             re[i] = (byte)r;
  93.         }
  94.         return re;
  95.     }
  96. }
  • 3DES加密的封装
  • kv字符串转换
  • 密码加密hash