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java金额数字转中文

运行结果：
会进行金额的四舍五入。

工具类源代码：

/*** 金额数字转为中文*/
public class NumberToCN {/*** 汉语中数字大写*/private static final String[] CN_UPPER_NUMBER = {"零", "壹", "贰", "叁", "肆","伍", "陆", "柒", "捌", "玖"};/*** 汉语中货币单位大写，这样的设计类似于占位符*/private static final String[] CN_UPPER_MONETRAY_UNIT = {"分", "角", "元","拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾", "佰", "仟", "兆", "拾","佰", "仟"};/*** 特殊字符：整*/private static final String CN_FULL = "整";/*** 特殊字符：负*/private static final String CN_NEGATIVE = "负";/*** 金额的精度，默认值为2*/private static final int MONEY_PRECISION = 2;/*** 特殊字符：零元整*/private static final String CN_ZEOR_FULL = "零元" + CN_FULL;/*** 把输入的金额转换为汉语中人民币的大写** @param numberOfMoney 输入的金额* @return 对应的汉语大写*/public static String number2CNMontrayUnit(BigDecimal numberOfMoney) {StringBuffer sb = new StringBuffer();// -1, 0, or 1 as the value of this BigDecimal is negative, zero, or// positive.int signum = numberOfMoney.signum();// 零元整的情况if (signum == 0) {return CN_ZEOR_FULL;}//这里会进行金额的四舍五入long number = numberOfMoney.movePointRight(MONEY_PRECISION).setScale(0, 4).abs().longValue();// 得到小数点后两位值long scale = number % 100;int numUnit = 0;int numIndex = 0;boolean getZero = false;// 判断最后两位数，一共有四中情况：00 = 0, 01 = 1, 10, 11if (!(scale > 0)) {numIndex = 2;number = number / 100;getZero = true;}if ((scale > 0) && (!(scale % 10 > 0))) {numIndex = 1;number = number / 10;getZero = true;}int zeroSize = 0;while (true) {if (number <= 0) {break;}// 每次获取到最后一个数numUnit = (int) (number % 10);if (numUnit > 0) {if ((numIndex == 9) && (zeroSize >= 3)) {sb.insert(0, CN_UPPER_MONETRAY_UNIT[6]);}if ((numIndex == 13) && (zeroSize >= 3)) {sb.insert(0, CN_UPPER_MONETRAY_UNIT[10]);}sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);sb.insert(0, CN_UPPER_NUMBER[numUnit]);getZero = false;zeroSize = 0;} else {++zeroSize;if (!(getZero)) {sb.insert(0, CN_UPPER_NUMBER[numUnit]);}if (numIndex == 2) {if (number > 0) {sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);}} else if (((numIndex - 2) % 4 == 0) && (number % 1000 > 0)) {sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);}getZero = true;}// 让number每次都去掉最后一个数number = number / 10;++numIndex;}// 如果signum == -1，则说明输入的数字为负数，就在最前面追加特殊字符：负if (signum == -1) {sb.insert(0, CN_NEGATIVE);}// 输入的数字小数点后两位为"00"的情况，则要在最后追加特殊字符：整if (!(scale > 0)) {sb.append(CN_FULL);}return sb.toString();}public static void main(String[] args) {double money = 2020004.0099999999;BigDecimal numberOfMoney = new BigDecimal(money);String s = NumberToCN.number2CNMontrayUnit(numberOfMoney);System.out.println("你输入的金额为：【" + money + "】   #--# [" + s.toString() + "]");}}