package com.ruoyi.stock.word;
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import java.math.BigDecimal;
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/**
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* 金额数字转大写工具类
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*/
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public class ChineseNumberUtil {
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private static final String[] CN_UPPER_NUMBER = {"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
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private static final String[] CN_UPPER_UNIT = {"", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾", "佰", "仟"};
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private static final String CN_DOLLAR = "";
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private static final String CN_TEN_CENT = "点";
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private static final String CN_CENT = "";
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private static final String CN_INTEGER = "整";
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/**
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* 将数字转换为大写金额
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* @param number 数字（单位：吨）
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* @return 大写金额字符串
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*/
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public static String numberToChinese(BigDecimal number) {
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if (number == null) {
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return "零";
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}
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// 处理负数
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boolean isNegative = false;
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if (number.compareTo(BigDecimal.ZERO) < 0) {
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isNegative = true;
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number = number.abs();
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}
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StringBuilder result = new StringBuilder();
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// 分离整数和小数部分
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String[] parts = number.toString().split("\\.");
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String integerPart = parts[0];
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String decimalPart = parts.length > 1 ? parts[1] : "";
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// 转换整数部分
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if (!"0".equals(integerPart)) {
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result.append(convertIntegerPart(integerPart));
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} else {
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result.append("零");
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}
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// 转换小数部分
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if (decimalPart.length() > 0 && !"00".equals(decimalPart) && !"0".equals(decimalPart)) {
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result.append(CN_TEN_CENT);
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char[] decimals = decimalPart.toCharArray();
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for (int i = 0; i < decimals.length; i++) {
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if (decimals[i] != '0') {
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result.append(CN_UPPER_NUMBER[Integer.parseInt(String.valueOf(decimals[i]))]);
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} else {
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if (i < decimals.length - 1 && decimals[i + 1] != '0') {
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result.append(CN_UPPER_NUMBER[0]);
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}
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}
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}
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}
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return isNegative ? "负" + result.toString() : result.toString();
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}
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/**
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* 转换整数部分
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*/
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private static String convertIntegerPart(String integerPart) {
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StringBuilder result = new StringBuilder();
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int length = integerPart.length();
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for (int i = 0; i < length; i++) {
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int digit = Integer.parseInt(String.valueOf(integerPart.charAt(i)));
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int unitIndex = length - i - 1;
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if (digit != 0) {
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result.append(CN_UPPER_NUMBER[digit]).append(CN_UPPER_UNIT[unitIndex]);
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} else {
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// 处理连续的零
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if (i > 0 && integerPart.charAt(i - 1) != '0') {
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result.append(CN_UPPER_NUMBER[0]);
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}
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// 处理万位和亿位
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if (unitIndex == 4 || unitIndex == 8) {
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if (result.length() > 0 && !result.toString().endsWith(CN_UPPER_NUMBER[0])) {
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result.append(CN_UPPER_UNIT[unitIndex]);
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}
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}
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}
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}
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String resultStr = result.toString();
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// 去除末尾的零
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while (resultStr.endsWith(CN_UPPER_NUMBER[0])) {
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resultStr = resultStr.substring(0, resultStr.length() - 1);
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}
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return resultStr;
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}
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}
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