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com.xiaoleilu.hutool.convert.NumberChineseFormater Maven / Gradle / Ivy

package com.xiaoleilu.hutool.convert;

import com.xiaoleilu.hutool.util.StrUtil;

/**
 * 数字转中文类
* 包括: *
 * 1. 数字转中文大写形式,比如一百二十一
 * 2. 数字转金额用的大写形式,比如:壹佰贰拾壹
 * 3. 转金额形式,比如:壹佰贰拾壹整
 * 
* * @author fanqun,looly **/ public class NumberChineseFormater { /** 简体中文形式 **/ private static final String[] simpleDigits = { "零", "一", "二", "三", "四", "五", "六", "七", "八", "九" }; /** 繁体中文形式 **/ private static final String[] traditionalDigits = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" }; /** 简体中文单位 **/ private static final String[] simpleUnits = { "", "十", "百", "千" }; /** 繁体中文单位 **/ private static final String[] traditionalUnits = { "", "拾", "佰", "仟" }; /** * 阿拉伯数字转换成中文,小数点后四舍五入保留两位. 使用于整数、小数的转换. * * @param amount 数字 * @param isUseTraditional 是否使用繁体 * @return 中文 */ public static String format(double amount, boolean isUseTraditional) { return format(amount, isUseTraditional, false); } /** * 阿拉伯数字转换成中文,小数点后四舍五入保留两位. 使用于整数、小数的转换. * * @param amount 数字 * @param isUseTraditional 是否使用繁体 * @param isMoneyMode 是否为金额模式 * @return 中文 */ public static String format(double amount, boolean isUseTraditional, boolean isMoneyMode) { final String[] numArray = isUseTraditional ? traditionalDigits : simpleDigits; if (amount > 99999999999999.99 || amount < -99999999999999.99) { throw new IllegalArgumentException("Number support only: (-99999999999999.99 ~ 99999999999999.99)!"); } boolean negative = false; if (amount < 0) { negative = true; amount = - amount; } long temp = Math.round(amount * 100); int numFen = (int) (temp % 10); temp = temp / 10; int numJiao = (int) (temp % 10); temp = temp / 10; //将数字以万为单位分为多份 int[] parts = new int[20]; int numParts = 0; for (int i = 0; temp != 0; i++) { int part = (int) (temp % 10000); parts[i] = part; numParts++; temp = temp / 10000; } boolean beforeWanIsZero = true; // 标志“万”下面一级是不是 0 String chineseStr = ""; for (int i = 0; i < numParts; i++) { String partChinese = toChinese(parts[i], isUseTraditional); if (i % 2 == 0) { beforeWanIsZero = StrUtil.isEmpty(partChinese); } if (i != 0) { if (i % 2 == 0) { chineseStr = "亿" + chineseStr; } else { if ("".equals(partChinese) && false == beforeWanIsZero) { // 如果“万”对应的 part 为 0,而“万”下面一级不为 0,则不加“万”,而加“零” chineseStr = "零" + chineseStr; } else { if (parts[i - 1] < 1000 && parts[i - 1] > 0) { // 如果"万"的部分不为 0, 而"万"前面的部分小于 1000 大于 0, 则万后面应该跟“零” chineseStr = "零" + chineseStr; } chineseStr = "万" + chineseStr; } } } chineseStr = partChinese + chineseStr; } if ("".equals(chineseStr)) // 整数部分为 0, 则表达为"零" chineseStr = numArray[0]; else if (negative) { // 整数部分不为 0 chineseStr = "负" + chineseStr; } // 小数部分 if (numFen != 0 || numJiao != 0) { if (numFen == 0) { chineseStr += (isMoneyMode ? "元" : "点") + numArray[numJiao] + (isMoneyMode ? "角" : ""); } else { // “分”数不为 0 if (numJiao == 0) { chineseStr += (isMoneyMode ? "元零" : "点零") + numArray[numFen] + (isMoneyMode ? "角" : ""); } else { chineseStr += (isMoneyMode ? "元" : "点") + numArray[numJiao] + (isMoneyMode ? "角" : "") + numArray[numFen] + (isMoneyMode ? "分" : ""); } } }else if(isMoneyMode) { //无小数部分的金额结尾 chineseStr += "整"; } return chineseStr; } /** * 把一个 0~9999 之间的整数转换为汉字的字符串,如果是 0 则返回 "" * * @param amountPart 数字部分 * @param isUseTraditional 是否使用繁体单位 * @return 转换后的汉字 */ private static String toChinese(int amountPart, boolean isUseTraditional) { // if (amountPart < 0 || amountPart > 10000) { // throw new IllegalArgumentException("Number must 0 < num < 10000!"); // } String[] numArray = isUseTraditional ? traditionalDigits : simpleDigits; String[] units = isUseTraditional ? traditionalUnits : simpleUnits; int temp = amountPart; String chineseStr = ""; boolean lastIsZero = true; // 在从低位往高位循环时,记录上一位数字是不是 0 for (int i = 0; temp > 0; i++) { if (temp == 0) { // 高位已无数据 break; } int digit = temp % 10; if (digit == 0) { // 取到的数字为 0 if (false == lastIsZero) { // 前一个数字不是 0,则在当前汉字串前加“零”字; chineseStr = "零" + chineseStr; } lastIsZero = true; } else { // 取到的数字不是 0 chineseStr = numArray[digit] + units[i] + chineseStr; lastIsZero = false; } temp = temp / 10; } return chineseStr; } }




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