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- import java.math.BigDecimal;
- /**
- * 金额工具类
- * Created by beifang on 17/4/26.
- */
- public class MoneyUtil {
- /**
- * 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 number2Money(BigDecimal numberOfMoney) {
- if(numberOfMoney == null) {
- return null;
- }
- 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();
- }
- }