package org.sz.basic;import java.text.DecimalFormat;public class ConvertMoney {private final static String[] STR_NUMBER = { "零", "壹", "贰", "叁", "肆", "伍","陆", "柒", "捌", "玖" };private final static String[] STR_UNIT = { "", "拾", "佰", "仟", "万", "拾万","佰万", "仟万", "亿", "拾亿", "佰亿", "仟亿" };private final static String[] STR_UNIT2 = {"厘", "分", "角"};public static String convert(double money) {DecimalFormat df = new DecimalFormat("#0.000");String strMoney = df.format(money);String point = "";if (strMoney.indexOf(".") != -1) {String integer = strMoney.substring(0, strMoney.indexOf("."));checkIntegerLength(integer);String decimal = strMoney.substring(strMoney.indexOf(".") + 1);point = "元";return convertInteger(integer) + point + convertDecimal(decimal);} else {checkIntegerLength(strMoney);point = "元整";return convertInteger(strMoney) + point;}}private static void checkIntegerLength(String integer) {if (integer.length() > 12) throw new RuntimeException("数字过大不可转换!");}private static String convertInteger(String integer) {return appendUnit((replaceNum(integer, STR_NUMBER)), STR_UNIT);}private static String convertDecimal(String decimal) {return appendUnit((replaceNum(decimal, STR_NUMBER)), STR_UNIT2);}/*** 将小写数字替换成大写数字*/private static String replaceNum(String money, String[] number) {char[] _money = money.toCharArray();String result = "";for (int i = 0; i < _money.length; i++) {int index = Integer.valueOf(_money[i] + "");result += number[index];}return result;}/*** 为大写数字添加单位*/private static String appendUnit(String money, String[] unit) {char[] _money = money.toCharArray();String result = "";String previousNum = "";String currentNum = "";for (int i = 0; i < money.length(); i++) {currentNum = _money[i] + "";if (i > 0) {previousNum = _money[i - 1] + "";}//中间连续的0只保留一个if (previousNum.equals("零") && currentNum.equals("零")) {continue;} else if(i != money.length() && currentNum.equals("零")) {result += _money[i];} else {result += (_money[i] + unit[money.length() - i - 1]);}}System.out.println(handlerZero(result));return handlerZero(result);}private static String handlerZero(String result) {int last = result.lastIndexOf("零");if (last == result.length() - 1) {result = result.substring(0, last);}return result;}public static void main(String[] args) {convert(30000010000.001);}}
