/**

* Created by 33303 on 2017/7/28.

*/

import java.math.BigDecimal;

/**

* 数字转换为汉语中人民币的大写

*

*/

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, 11

if (!(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 = 2020004.01;

BigDecimal numberOfMoney = new BigDecimal(money);

String s = NumberToCN.number2CNMontrayUnit(numberOfMoney);

System.out.println("你输入的金额为：【"+ money +"】 #--# [" +s.toString()+"]");

}

}