java 金额的大小写转换类

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/** *金额大小写转换工具类 */ public class MoneyUtil {  /** 大写数字 */  private static final String[] NUMBERS = { "零", "壹", "贰", "叁", "肆", "伍", "陆",      "柒", "捌", "玖" };  /** 整数部分的单位 */  private static final String[] IUNIT = { "元", "拾", "佰", "仟", "万", "拾", "佰",      "仟", "亿", "拾", "佰", "仟", "万", "拾", "佰", "仟" };  /** 小数部分的单位 */  private static final String[] DUNIT = { "角", "分", "厘" };  /**   * 得到大写金额。   */  public static String toChinese(String str) {    str = str.replaceAll(",", "");// 去掉","    String integerStr;// 整数部分数字    String decimalStr;// 小数部分数字    // 初始化：分离整数部分和小数部分    if (str.indexOf(".") > 0) {      integerStr = str.substring(0, str.indexOf("."));      decimalStr = str.substring(str.indexOf(".") + 1);    } else if (str.indexOf(".") == 0) {      integerStr = "";      decimalStr = str.substring(1);    } else {      integerStr = str;      decimalStr = "";    }    // integerStr去掉首0，不必去掉decimalStr的尾0(超出部分舍去)    if (!integerStr.equals("")) {      integerStr = Long.toString(Long.parseLong(integerStr));      if (integerStr.equals("0")) {        integerStr = "";      }    }    // overflow超出处理能力，直接返回    if (integerStr.length() > IUNIT.length) {      System.out.println(str + ":超出处理能力");      return str;    }    int[] integers = toArray(integerStr);// 整数部分数字    boolean isMust5 = isMust5(integerStr);// 设置万单位    int[] decimals = toArray(decimalStr);// 小数部分数字    return getChineseInteger(integers, isMust5) + getChineseDecimal(decimals);  }  /**   * 整数部分和小数部分转换为数组，从高位至低位   */  private static int[] toArray(String number) {    int[] array = new int[number.length()];    for (int i = 0; i < number.length(); i++) {      array[i] = Integer.parseInt(number.substring(i, i + 1));    }    return array;  }  /**   * 得到中文金额的整数部分。   */  private static String getChineseInteger(int[] integers, boolean isMust5) {    StringBuffer chineseInteger = new StringBuffer("");    int length = integers.length;    for (int i = 0; i < length; i++) {      // 0出现在关键位置：1234(万)5678(亿)9012(万)3456(元)      // 特殊情况：10(拾元、壹拾元、壹拾万元、拾万元)      String key = "";      if (integers[i] == 0) {        if ((length - i) == 13)// 万(亿)(必填)          key = IUNIT[4];        else if ((length - i) == 9)// 亿(必填)          key = IUNIT[8];        else if ((length - i) == 5 && isMust5)// 万(不必填)          key = IUNIT[4];        else if ((length - i) == 1)// 元(必填)          key = IUNIT[0];        // 0遇非0时补零，不包含最后一位        if ((length - i) > 1 && integers[i + 1] != 0)          key += NUMBERS[0];      }      chineseInteger.append(integers[i] == 0 ? key          : (NUMBERS[integers[i]] + IUNIT[length - i - 1]));    }    return chineseInteger.toString();  }  /**   * 得到中文金额的小数部分。   */  private static String getChineseDecimal(int[] decimals) {    StringBuffer chineseDecimal = new StringBuffer("");    for (int i = 0; i < decimals.length; i++) {      // 舍去3位小数之后的      if (i == 3)        break;      chineseDecimal.append(decimals[i] == 0 ? ""          : (NUMBERS[decimals[i]] + DUNIT[i]));    }    return chineseDecimal.toString();  }  /**   * 判断第5位数字的单位"万"是否应加。   */  private static boolean isMust5(String integerStr) {    int length = integerStr.length();    if (length > 4) {      String subInteger = "";      if (length > 8) {        // 取得从低位数，第5到第8位的字串        subInteger = integerStr.substring(length - 8, length - 4);      } else {        subInteger = integerStr.substring(0, length - 4);      }      return Integer.parseInt(subInteger) > 0;    } else {      return false;    }  }  public static void main(String[] args) {//   MoneyUtil moneyUtil  = new MoneyUtil();//   System.out.println(moneyUtil.toChinese("10001"));  }}

package com.shaofei.test;import java.util.HashMap;import java.util.Map;public class CNNMFilter {      private static final Character[] CN_NUMERIC = { '一', '二', '三', '四', '五',              '六', '七', '八', '九', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖',              '十', '百', '千', '拾', '佰', '仟', '万', '亿', '○', 'Ｏ', '零' };        private static Map<Character, Integer> cnNumeric = null;        static {          cnNumeric = new HashMap<Character, Integer>(40, 0.85f);          for (int j = 0; j < 9; j++)              cnNumeric.put(CN_NUMERIC[j], j + 1);          for (int j = 9; j < 18; j++)              cnNumeric.put(CN_NUMERIC[j], j - 8);          cnNumeric.put('两', 2);          cnNumeric.put('十', 10);          cnNumeric.put('拾', 10);          cnNumeric.put('百', 100);          cnNumeric.put('佰', 100);          cnNumeric.put('千', 1000);          cnNumeric.put('仟', 1000);          cnNumeric.put('万', 10000);          cnNumeric.put('亿', 100000000);      }      public static int isCNNumeric(char c) {          Integer i = cnNumeric.get(c);          if (i == null)              return -1;          return i.intValue();      }      public static int cnNumericToArabic(String cnn, boolean flag) {            cnn = cnn.trim();          if (cnn.length() == 1)              return isCNNumeric(cnn.charAt(0));            if (flag)              cnn = cnn.replace('佰', '百').replace('仟', '千').replace('拾', '十')                      .replace('零', ' ');          // System.out.println(cnn);          int yi = -1, wan = -1, qian = -1, bai = -1, shi = -1;          int val = 0;          yi = cnn.lastIndexOf('亿');          if (yi > -1) {              val += cnNumericToArabic(cnn.substring(0, yi), false) * 100000000;              if (yi < cnn.length() - 1)                  cnn = cnn.substring(yi + 1, cnn.length());              else                  cnn = "";                if (cnn.length() == 1) {                  int arbic = isCNNumeric(cnn.charAt(0));                  if (arbic <= 10)                      val += arbic * 10000000;                  cnn = "";              }          }            wan = cnn.lastIndexOf('万');          if (wan > -1) {              val += cnNumericToArabic(cnn.substring(0, wan), false) * 10000;              if (wan < cnn.length() - 1)                  cnn = cnn.substring(wan + 1, cnn.length());              else                  cnn = "";              if (cnn.length() == 1) {                  int arbic = isCNNumeric(cnn.charAt(0));                  if (arbic <= 10)                      val += arbic * 1000;                  cnn = "";              }          }            qian = cnn.lastIndexOf('千');          if (qian > -1) {              val += cnNumericToArabic(cnn.substring(0, qian), false) * 1000;              if (qian < cnn.length() - 1)                  cnn = cnn.substring(qian + 1, cnn.length());              else                  cnn = "";              if (cnn.length() == 1) {                  int arbic = isCNNumeric(cnn.charAt(0));                  if (arbic <= 10)                      val += arbic * 100;                  cnn = "";              }          }            bai = cnn.lastIndexOf('百');          if (bai > -1) {              val += cnNumericToArabic(cnn.substring(0, bai), false) * 100;              if (bai < cnn.length() - 1)                  cnn = cnn.substring(bai + 1, cnn.length());              else                  cnn = "";              if (cnn.length() == 1) {                  int arbic = isCNNumeric(cnn.charAt(0));                  if (arbic <= 10)                      val += arbic * 10;                  cnn = "";              }          }            shi = cnn.lastIndexOf('十');          if (shi > -1) {              if (shi == 0)                  val += 1 * 10;              else                  val += cnNumericToArabic(cnn.substring(0, shi), false) * 10;              if (shi < cnn.length() - 1)                  cnn = cnn.substring(shi + 1, cnn.length());              else                  cnn = "";          }            cnn = cnn.trim();          for (int j = 0; j < cnn.length(); j++)              val += isCNNumeric(cnn.charAt(j))                      * Math.pow(10, cnn.length() - j - 1);            return val;      }        public static int qCNNumericToArabic(String cnn) {          int val = 0;          cnn = cnn.trim();          for (int j = 0; j < cnn.length(); j++)              val += isCNNumeric(cnn.charAt(j))                      * Math.pow(10, cnn.length() - j - 1);          return val;      }        public static void main(String[] args) {          int val = 0;          long s = System.nanoTime();          val = cnNumericToArabic("三亿二千零六万七千五百六", true);          System.out.println(val);          val = cnNumericToArabic("一九九八", true);          System.out.println(val);          long e = System.nanoTime();          System.out.format("Done[" + val + "], cost: %.5fsec\n",                  ((float) (e - s)) / 1E9);      }    }

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