金额转换大写文字工具类

>package com.qcdl.utils;
>import java.math.BigDecimal;
/**
* 数字转换为汉语中人民币的大写<br>
*
* @author dean
*/
public class NumberToCNUtil {
        /**
        * 汉语中数字大写
        */
        private static final String[] CN_UPPER_NUMBER = {"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
        /**
        * 汉语中货币单位大写，这样的设计类似于占位符
        */
        private static final String[] CN_UPPER_MONETRAY_UNIT = {"毫", "厘", "分", "角", "元", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾"， "佰", "仟", "兆", "拾", "佰", "仟"};
        /**
        * 特殊字符：整
        */
        private static final String CN_FULL = "整";
        /**
        * 特殊字符：负
        */
        private static final String CN_NEGATIVE = "负";
        /**
        * 金额的精度，默认值为4
        */
        private static final int MONEY_PRECISION = 4;
        /**
        * 特殊字符：零元整
        */
        private static final String CN_ZEOR_FULL = "零元";
        /**
        * 把输入的金额转换为汉语中人民币的大写
        *
        * @param numberOfMoney 输入的金额
        * @reurn 对应的汉语大写
        */
        public static String number2CNMontrayUnit(BigDecimal numberOfMoney) {
            StringBuffer sb = new StringBuffer();
            // 返回-1：表示该数小于0 0：表示该数等于0 1：表示该数大于0
            int signum = numberOfMoney.signum();
            // 零元的情况
            if (signum == 0) {
                return CN_ZEOR_FULL;
            }
            // 这里会进行金额的四舍五入
            long number = numberOfMoney.movePointRight(MONEY_PRECISION).setScale(0, 4).abs().longValue();
            // 得到小数点后四位值
            long scale = number % 10000;
            int numUnit = 0;
            int numIndex = 0;
            boolean getZero = false;
            // 判断最后两位数，一共有四中情况：00 = 0, 01 = 1, 10, 11
            if (!(scale > 0)) {
                numIndex = 2;
                number = number / 100;
                getZero = true;
            }
            if ((scale > 0) && (!(scale % 10 > 0))) {
                numIndex = 1;
                number = number / 10;
                getZero = true;
            }
            int zeroSize = 0;
            while (true) {
                if (number <= 0) {
                    break;
                }
                // 每次获取到最后一个数
                numUnit = (int) (number % 10);
                if (numUnit > 0) {
                    if ((numIndex == 9) && (zeroSize >= 3)) {
                        sb.insert(0, CN_UPPER_MONETRAY_UNIT[6]);
                    }
                    if ((numIndex == 13) && (zeroSize >= 3)) {
                        sb.insert(0, CN_UPPER_MONETRAY_UNIT[10]);
                    }
                    sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);
                    sb.insert(0, CN_UPPER_NUMBER[numUnit]);
                    getZero = false;
                    zeroSize = 0;
                } else {
                    ++zeroSize;
                    //"分", "角", "元","万", "亿","兆"位不会出现零
                    if (numIndex != 0 && numIndex != 1 && numIndex != 2
                            && numIndex != 6 && numIndex != 10 && numIndex != 14) {
                        if (!(getZero)) {
                            sb.insert(0, CN_UPPER_NUMBER[numUnit]);
                        }
                    }
                    if (numIndex == 2) {
                        if (number > 0) {
                            sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);
                        }
                    } else if (((numIndex - 2) % 4 == 0) && (number % 1000 > 0)) {
                        sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);
                    }
                    getZero = true;
                }
                // 让number每次都去掉最后一个数
                number = number / 10;
                ++numIndex;
            }
            // 如果signum == -1，则说明输入的数字为负数，就在最前面追加特殊字符：负
            if (signum == -1) {
                sb.insert(0, CN_NEGATIVE);
            }// 除了0.00其他数据都要带特殊字符：整
            String s = numberOfMoney.toString();
            if (s.contains(".")) {
                String[] split = s.split("\\.");
                if (Integer.parseInt(split[1].substring(0, 3)) <= 0) {
                    sb.append(CN_FULL);
                }
            } else {
                sb.append(CN_FULL);
            }
            return sb.toString();
        }

public static void main(String[] args) {
            double money = 1245.12;
            BigDecimal numberOfMoney = new BigDecimal(money);
            String s = NumberToCNUtil.number2CNMontrayUnit(numberOfMoney);
            System.out.println(s);
            System.out.println("你输入的金额为：【" + money + "】 #--# [" + NumberToCNUtil.number2CNMontrayUnit(numberOfMoney).toString() + "]");
        }