package com.zzg.common.utils;
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public class MoneyUtil {
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/**
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* 大写数字
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*/
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private static final String[] NUMBERS = {"零", "壹", "贰", "叁", "肆", "伍", "陆",
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"柒", "捌", "玖"};
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/**
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* 整数部分的单位
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*/
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private static final String[] IUNIT = {"圆", "拾", "佰", "仟", "万", "拾", "佰",
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"仟", "亿", "拾", "佰", "仟", "万", "拾", "佰", "仟"};
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/**
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* 小数部分的单位
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*/
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private static final String[] DUNIT = {"角", "分", "厘"};
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/**
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* 得到大写金额。
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*/
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public static String toChinese(String str) {
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str = str.replaceAll(",", "");// 去掉","
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String integerStr;// 整数部分数字
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String decimalStr;// 小数部分数字
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// 初始化：分离整数部分和小数部分
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if (str.indexOf(".") > 0) {
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integerStr = str.substring(0, str.indexOf("."));
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decimalStr = str.substring(str.indexOf(".") + 1);
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} else if (str.indexOf(".") == 0) {
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integerStr = "";
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decimalStr = str.substring(1);
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} else {
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integerStr = str;
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decimalStr = "";
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}
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// integerStr去掉首0，不必去掉decimalStr的尾0(超出部分舍去)
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if (!integerStr.equals("")) {
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integerStr = Long.toString(Long.parseLong(integerStr));
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if (integerStr.equals("0")) {
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integerStr = "";
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}
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}
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// overflow超出处理能力，直接返回
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if (integerStr.length() > IUNIT.length) {
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System.out.println(str + ":超出处理能力");
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return str;
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}
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int[] integers = toArray(integerStr);// 整数部分数字
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boolean isMust5 = isMust5(integerStr);// 设置万单位
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int[] decimals = toArray(decimalStr);// 小数部分数字
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return getChineseInteger(integers, isMust5) + getChineseDecimal(decimals);
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}
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/**
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* 整数部分和小数部分转换为数组，从高位至低位
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*/
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private static int[] toArray(String number) {
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int[] array = new int[number.length()];
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for (int i = 0; i < number.length(); i++) {
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array[i] = Integer.parseInt(number.substring(i, i + 1));
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}
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return array;
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}
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/**
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* 得到中文金额的整数部分。
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*/
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private static String getChineseInteger(int[] integers, boolean isMust5) {
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StringBuffer chineseInteger = new StringBuffer("");
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int length = integers.length;
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for (int i = 0; i < length; i++) {
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// 0出现在关键位置：1234(万)5678(亿)9012(万)3456(元)
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// 特殊情况：10(拾元、壹拾元、壹拾万元、拾万元)
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String key = "";
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if (integers[i] == 0) {
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if ((length - i) == 13)// 万(亿)(必填)
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key = IUNIT[4];
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else if ((length - i) == 9)// 亿(必填)
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key = IUNIT[8];
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else if ((length - i) == 5 && isMust5)// 万(不必填)
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key = IUNIT[4];
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else if ((length - i) == 1)// 元(必填)
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key = IUNIT[0];
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// 0遇非0时补零，不包含最后一位
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if ((length - i) > 1 && integers[i + 1] != 0)
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key += NUMBERS[0];
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}
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chineseInteger.append(integers[i] == 0 ? key
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: (NUMBERS[integers[i]] + IUNIT[length - i - 1]));
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}
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return chineseInteger.toString();
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}
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/**
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* 得到中文金额的小数部分。
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*/
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private static String getChineseDecimal(int[] decimals) {
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StringBuffer chineseDecimal = new StringBuffer("");
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for (int i = 0; i < decimals.length; i++) {
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// 舍去3位小数之后的
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if (i == 3)
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break;
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chineseDecimal.append(decimals[i] == 0 ? ""
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: (NUMBERS[decimals[i]] + DUNIT[i]));
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}
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return chineseDecimal.toString();
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}
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/**
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* 判断第5位数字的单位"万"是否应加。
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*/
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private static boolean isMust5(String integerStr) {
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int length = integerStr.length();
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if (length > 4) {
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String subInteger = "";
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if (length > 8) {
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// 取得从低位数，第5到第8位的字串
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subInteger = integerStr.substring(length - 8, length - 4);
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} else {
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subInteger = integerStr.substring(0, length - 4);
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}
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return Integer.parseInt(subInteger) > 0;
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} else {
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return false;
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}
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}
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public static void main(String[] args) {
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String number = "1.23";
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System.out.println(number + " " + MoneyUtil.toChinese(number));
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number = "1234567890123456.123";
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System.out.println(number + " " + MoneyUtil.toChinese(number));
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number = "0.0798";
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System.out.println(number + " " + MoneyUtil.toChinese(number));
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number = "10,001,000.09";
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System.out.println(number + " " + MoneyUtil.toChinese(number));
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number = "01.107700";
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System.out.println(number + " " + MoneyUtil.toChinese(number));
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number = "01.107700";
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System.out.println(number + " " + MoneyUtil.toChinese(number));
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}
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}
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