java小写金额转大写工具类
package com.mon.util;import java.math.BigDecimal;public class DigitCapital {public static String digitCapital(double n) {String fraction[] = {"角", "分"};String digit[] = {"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};String unit[][] = {{"元", "万", "亿"}, {"", "拾", "佰", "仟"}};String head = n < 0 ? "负" : "";// 如果是负数取绝对值n = Math.abs(n);String s = "";BigDecimal bigDecimal = new BigDecimal(Double.valueOf(n).toString());String nStr = bigDecimal.toString();// 小数部分String[] split = nStr.split("\\.");if (split.length > 1) {// 小数点为特殊符号，在分割时需进行转义String decimalStr = split[1];if (decimalStr.length() > 2) {decimalStr = decimalStr.substring(0, 2);}// 将小数部分转换为整数Integer integer = Integer.valueOf(decimalStr);String p = "";for (int i = 0; i < decimalStr.length() && i < fraction.length; i++) {p = digit[integer % 10] + fraction[decimalStr.length() - i - 1] + p;integer = integer / 10;}s = p.replaceAll("(零.)+", "") + s;}if (s.length() < 1) {s = "整";}int integerPart = (int)Math.floor(n);// 整数部分for (int i = 0; i < unit[0].length && integerPart > 0; i++) {String p = "";for (int j = 0; j < unit[1].length && n > 0; j++) {p = digit[integerPart % 10] + unit[1][j] + p;integerPart = integerPart / 10;}s = p.replaceAll("(零.)*零$", "").replaceAll("^$", "零") + unit[0][i] + s;}return head + s.replaceAll("(零.)*零元", "元").replaceFirst("(零.)+", "").replaceAll("(零.)+", "零").replaceAll("^整$", "零元整");}}
测试类
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