金钱数字转换成中文数值
关于中文数值表示参考链接：
https://baike.baidu.com/item/%E4%B8%AD%E6%96%87%E6%95%B0%E5%AD%97/2921705?fr=aladdin
package top.simba1949; import java.util.*; /** * 最高支持：1京 减 0.01 * * 设计思路： * 将字符串通过小数点分割为整数部分和小数部分（小数部分取2位） * * 整数部分处理思路： * 数字字符串从后往前数，每8位一个单元，千百十万千百十个+单位 * 每个单元，第三位是万位，需要特殊处理， * |->如果万前面存在数字，但是万位没有数值，需要添加上万， * |->如果万前面没有数值同时万没有数值，不用添加 * * 小数部分处理思路： * 判断是否是否存在 * |->存在，先取第一位小数位做角，然后判断长度是否大于2， * | |->不大于等于2，直接返回 * | |->大于等于2再取第二位小数做分返回 * |->不存在，返回`整` * @author anthony * @date 2021/1/26 */ public class MoneyUtils { private static final String NUMBER_ZERO_STR = "0"; private static final String NUMBER_ONE_STR = "1"; private static final String NUMBER_TWO_STR = "2"; private static final String NUMBER_THREE_STR = "3"; private static final String NUMBER_FOUR_STR = "4"; private static final String NUMBER_FIVE_STR = "5"; private static final String NUMBER_SIX_STR = "6"; private static final String NUMBER_SEVEN_STR = "7"; private static final String NUMBER_EIGHT_STR = "8"; private static final String NUMBER_NINE_STR = "9"; private static final String NUMBER_POINT_STR = "."; private static final String DELIMITER_DECIMAL_POINT = "\\."; private static final String DELIMITER_COMMA = ","; private static final String CN_NUMBER_ZERO_STR = "零"; private static final String CN_NUMBER_ONE_STR = "壹"; private static final String CN_NUMBER_TWO_STR = "贰"; private static final String CN_NUMBER_THREE_STR = "叁"; private static final String CN_NUMBER_FOUR_STR = "肆"; private static final String CN_NUMBER_FIVE_STR = "伍"; private static final String CN_NUMBER_SIX_STR = "陆"; private static final String CN_NUMBER_SEVEN_STR = "柒"; private static final String CN_NUMBER_EIGHT_STR = "捌"; private static final String CN_NUMBER_NINE_STR = "玖"; private static final String CN_NUMBER_TEN_STR = "拾"; private static final String CN_NUMBER_HUNDRED_STR = "佰"; private static final String CN_NUMBER_THOUSAND_STR = "仟"; private static final String CN_NUMBER_TEN_THOUSAND_STR = "万"; private static final String CN_NUMBER_BILLION_STR = "亿"; private static final String CN_NUMBER_TRILLION_STR = "兆"; private static final String RMB_UNIT_YUAN = "圆"; private static final String RMB_UNIT_JIAO = "角"; private static final String RMB_UNIT_FEN = "分"; private static final String NO_POINT = "整"; /** * 数值与中文数字映射关系 */ private static Map<String, String> numberMap = new HashMap<>(16); /** * 长度与单位映射关系 */ private static Map<Integer, String> unitMap = new HashMap<>(16); /** * 从后往前数，每8个为单位，获取单位数值，千，百，十，万，千，百，十，一 */ private static Map<Integer, String> unitMap4Digits = new HashMap<>(16); static { numberMap.put(NUMBER_ZERO_STR, CN_NUMBER_ZERO_STR); numberMap.put(NUMBER_ONE_STR, CN_NUMBER_ONE_STR); numberMap.put(NUMBER_TWO_STR, CN_NUMBER_TWO_STR); numberMap.put(NUMBER_THREE_STR, CN_NUMBER_THREE_STR); numberMap.put(NUMBER_FOUR_STR, CN_NUMBER_FOUR_STR); numberMap.put(NUMBER_FIVE_STR, CN_NUMBER_FIVE_STR); numberMap.put(NUMBER_SIX_STR, CN_NUMBER_SIX_STR); numberMap.put(NUMBER_SEVEN_STR, CN_NUMBER_SEVEN_STR); numberMap.put(NUMBER_EIGHT_STR, CN_NUMBER_EIGHT_STR); numberMap.put(NUMBER_NINE_STR, CN_NUMBER_NINE_STR); } static { unitMap4Digits.put(1, ""); unitMap4Digits.put(2, CN_NUMBER_TEN_STR); unitMap4Digits.put(3, CN_NUMBER_HUNDRED_STR); unitMap4Digits.put(4, CN_NUMBER_THOUSAND_STR); unitMap4Digits.put(5, CN_NUMBER_TEN_THOUSAND_STR); unitMap4Digits.put(6, CN_NUMBER_TEN_STR); unitMap4Digits.put(7, CN_NUMBER_HUNDRED_STR); unitMap4Digits.put(8, CN_NUMBER_THOUSAND_STR); } static { // 圆 unitMap.put(1, RMB_UNIT_YUAN); // 亿 unitMap.put(2, CN_NUMBER_BILLION_STR); // 兆 unitMap.put(3, CN_NUMBER_TRILLION_STR); } /** * 钱币 * 数字转换成中文大写 * 目前最大支持一兆 * @return */ public static String moneyNumber2CnNumber(String original){ if (null == original || original.trim().isEmpty()){ return ""; } // beforePoint 表示整数部分，afterPoint表示小数部分 String beforePoint, afterPoint= ""; String originalTrim = original.replace(" ", "").trim(); if (originalTrim.contains(NUMBER_POINT_STR)){ // 存在小数点 String[] split = originalTrim.split(DELIMITER_DECIMAL_POINT); beforePoint = split[0].trim(); afterPoint = split[1].trim(); }else { // 不存在小数点 beforePoint = originalTrim; } return integerDealWith(beforePoint) + decimalDealWith(afterPoint); } /** * 整数部分处理方式 * @param integer * @return */ private static String integerDealWith(String integer){ if (null == integer || integer.trim().isEmpty()){ return ""; } // 从后往前数，每8位添加一个分割符号, List<String> list = new ArrayList<>(); char[] chars = integer.trim().toCharArray(); int j = 1; for (int i = chars.length - 1; i >= 0; i--) { list.add(String.valueOf(chars[i])); if (j%8 == 0){ list.add(DELIMITER_COMMA); } j++; } Collections.reverse(list); // 获取带有分割符`,`的字符串 StringBuilder builder = new StringBuilder(); list.forEach(builder::append); String str = builder.toString(); // 去掉头部逗号 if (str.startsWith(DELIMITER_COMMA)){ str = str.replaceFirst(DELIMITER_COMMA, ""); } // 每8位分割后处理 StringBuilder resultBuilder = new StringBuilder(); String[] split = str.split(DELIMITER_COMMA); int length = split.length; for (int i = 0; i < length; i++) { resultBuilder.append(integerDealWithCoreWithUnit(split[i], unitMap.get(length - i))); } return resultBuilder.toString(); } /** * 数字按照 `千万百万十万，万千百十个` 排序 * @param number * @param unit 最后的单位 * @return */ private static String integerDealWithCoreWithUnit(String number, String unit){ if (null == number || number.trim().isEmpty() || null == unit){ return ""; } StringBuilder builder = new StringBuilder(); switch (number.length()){ case 7: number = "0" + number;break; case 6: number = "00" + number;break; case 5: number = "000" + number;break; case 4: number = "0000" + number;break; case 3: number = "00000" + number;break; case 2: number = "000000" + number;break; case 1: number = "0000000" + number;break; } int length = number.length(); int j = length; for (int i = 0; i < length; i++) { String value = String.valueOf(number.charAt(i)); if (!NUMBER_ZERO_STR.equals(value)){ builder.append(numberMap.get(value)).append(unitMap4Digits.get(j)); }else { // 8位数，第四位数没有值但是前面有值 if (i == 3 && builder.length() > 0){ builder.append(CN_NUMBER_TEN_THOUSAND_STR); } } j--; } // 添加最后的单位 if (builder.length() > 0){ builder.append(unit); } return builder.toString(); } /** * 小数部分处理方式 * @param decimal * @return */ private static String decimalDealWith(String decimal){ if (null == decimal || decimal.trim().isEmpty()){ return NO_POINT; } // 自取两位小数 StringBuilder builder = new StringBuilder(); // 角 String decimalTrim = decimal.trim(); String tenthsNumberStr = String.valueOf(decimalTrim.charAt(0)); if (!NUMBER_ZERO_STR.equals(tenthsNumberStr)){ builder.append(numberMap.get(tenthsNumberStr)).append(RMB_UNIT_JIAO); } // 分 if (decimalTrim.length() >= 2){ String percentileNumberStr = String.valueOf(decimalTrim.charAt(1)); if (!NUMBER_ZERO_STR.equals(percentileNumberStr)){ builder.append(numberMap.get(percentileNumberStr)).append(RMB_UNIT_FEN); } } return builder.toString(); } private MoneyUtils() { } }
