易买网项目EasyBuy（内有数据库）

package cn.buy.utils; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.Map; import java.util.Random; import java.util.UUID; import javax.crypto.BadPaddingException; import javax.crypto.Cipher; import javax.crypto.IllegalBlockSizeException; import javax.crypto.NoSuchPaddingException; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; public class StringUtils { private static String[] binaryArray = {"0000","0001","0010","0011", "0100","0101","0110","0111", "1000","1001","1010","1011", "1100","1101","1110","1111"}; // private static String[] chineseDigits = new String[] { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"}; public static String[] chineseDigits = new String[] { "零", "一", "二", "三", "四", "五", "六", "七", "八", "九"}; private static final char[] charBytes = { '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'}; private static final char[] numberBytes = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}; /** * 生成指定位数的随机数子. * @param number * @return */ public static String randomNumbers(int number) { int count = 0; //生成的密码的长度 int i; //生成的随机数 final int maxNum = numberBytes.length; StringBuffer randomStr = new StringBuffer(""); Random r = new Random(); while(count < number){ //生成随机数，取绝对值，防止生成负数， i = Math.abs(r.nextInt(maxNum)); //生成的数最大为36-1 if (i >= 0 && i < numberBytes.length) { randomStr.append(numberBytes[i]); count ++; } } return randomStr.toString(); } public static String randomStrByNumber(int number) { int count = 0; //生成的密码的长度 int i; //生成的随机数 final int maxNum = charBytes.length; StringBuffer randomStr = new StringBuffer(""); Random r = new Random(); while(count < number){ //生成随机数，取绝对值，防止生成负数， i = Math.abs(r.nextInt(maxNum)); //生成的数最大为36-1 if (i >= 0 && i < charBytes.length) { randomStr.append(charBytes[i]); count ++; } } return randomStr.toString(); } public static String randomUUID() { UUID uuid = UUID.randomUUID(); return uuid.toString().replace("-", "").toUpperCase(); } public static String digitsTochinese(int i){ //大于10的需要重写 return chineseDigits[i]; } public static String toAllUpperCase(String uuid) { StringBuffer buffer = new StringBuffer(); for (int i = 0; i < uuid.length(); i++) { char c = uuid.charAt(i); if (Character.isLowerCase(c)) { buffer.append(Character.toUpperCase(c)); } else { buffer.append(c); } } return buffer.toString(); } // 十六进制字符串转byte数组 public static byte[] hexStringToBytes(String hexString) { if (hexString == null || hexString.equals("")) { return null; } hexString = hexString.toUpperCase(); int length = hexString.length() / 2; char[] hexChars = hexString.toCharArray(); byte[] d = new byte[length]; for (int i = 0; i < length; i++) { int pos = i * 2; d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1])); } return d; } private static byte charToByte(char c) { return (byte) "0123456789ABCDEF".indexOf(c); } // 数组转字符串、以空格间隔 public static String bytesToHexString(byte[] src) { StringBuilder stringBuilder = new StringBuilder(""); if (src == null || src.length <= 0) { return null; } for (int i = 0; i < src.length; i++) { int v = src[i] & 0xFF; String hv = Integer.toHexString(v); if (hv.length() < 2) { stringBuilder.append(0); } if (i == src.length - 1) { stringBuilder.append(hv); } else { stringBuilder.append(hv); } } return stringBuilder.toString(); } public static String bytesToHexStringNoAppendBit(byte[] src) { StringBuilder stringBuilder = new StringBuilder(""); if (src == null || src.length <= 0) { return null; } for (int i = 0; i < src.length; i++) { int v = src[i] & 0xFF; String hv = Integer.toHexString(v); /*if (hv.length() < 2) { stringBuilder.append(0); }*/ if (i == src.length - 1) { stringBuilder.append(hv); } else { stringBuilder.append(hv); } } return stringBuilder.toString(); } public static String bytesToString(byte[] src, String split) { StringBuilder stringBuilder = new StringBuilder(""); if (src == null || src.length <= 0) { return null; } for (int i = 0; i < src.length; i++) { int v = src[i] & 0xFF; String hv = String.valueOf(v); if (i == src.length - 1) { stringBuilder.append(hv); } else { stringBuilder.append(hv + split); } } return stringBuilder.toString(); } public static String generateHexString(int paramInt) { StringBuffer localStringBuffer = new StringBuffer(); Random localRandom = new Random(); int i = 16; for (int j = 0; j < paramInt; j++) { if (j % 2 == 0) { localStringBuffer.append("0123456789ABCDEF".charAt(localRandom .nextInt(i))); } else { localStringBuffer.append("0123456789ABCDEF".charAt(localRandom .nextInt(i)) + " "); } } return localStringBuffer.toString(); } public static byte[] decodeTripleDES(byte[] data, byte[] key) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException { byte[] keys; if (key.length == 16) { keys = new byte[24]; System.arraycopy(key, 0, keys, 0, 16); System.arraycopy(key, 0, keys, 16, 8); } else { keys = key; } Cipher cipher = Cipher.getInstance("DESede/ECB/NoPadding"); SecretKey secretKey = new SecretKeySpec(keys, "DESede"); cipher.init(Cipher.DECRYPT_MODE, secretKey); return cipher.doFinal(data); } public static boolean equals(byte[] b1, byte[] b2) { if (b1.length != b2.length) { return false; } for (int i = 0; i < b1.length; i++) { if (b1[i] != b2[i]) { return false; } } return true; } /** * * @return 转换为二进制字符串 */ public static String bytes2BinaryStr(byte[] bArray){ String outStr = ""; int pos = 0; for(byte b:bArray){ //高四位 pos = (b&0xF0)>>4; outStr+=binaryArray[pos]; //低四位 pos=b&0x0F; outStr+=binaryArray[pos]; } return outStr; } /**将二进制转换成16进制 　　* @param buf 　　* @return 　　*/ public static String binaryToHexString(byte[] bytes) { StringBuffer sb = new StringBuffer(); for (int i = 0; i < bytes.length; i++) { String hex = Integer.toHexString(bytes[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } sb.append(hex.toUpperCase()); } return sb.toString(); } /**将16进制转换为二进制 　　* @param hexStr 　　* @return 　　*/ public static byte[] hexStringToBinary(String hexStr) { if (hexStr.length() < 1) return null; byte[] result =