package com.sp2p.util;
public class MoneyUtil {
public static String[] chineseDigits = new String[] { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };
/**
* 把金额转换为汉字表示的数量,小数点后四舍五入保留两位
*
* @param amount
* @return
*/
public static String amountToChinese(double amount) {
if (amount > 99999999999999.99 || amount < -99999999999999.99)
throw new IllegalArgumentException("参数值超出允许范围 (-99999999999999.99 ~ 99999999999999.99)!");
boolean negative = false;
if (amount < 0) {
negative = true;
amount = amount * (-1);
}
long temp = Math.round(amount * 100);
int numFen = (int) (temp % 10); // 分
temp = temp / 10;
int numJiao = (int) (temp % 10); // 角
temp = temp / 10;
// temp 目前是金额的整数部分
int[] parts = new int[20]; // 其中的元素是把原来金额整数部分分割为值在 0~9999 之间的数的各个部分
int numParts = 0; // 记录把原来金额整数部分分割为了几个部分(每部分都在 0~9999 之间)
for (int i = 0;; i++) {
if (temp == 0)
break;
int part = (int) (temp % 10000);
parts[i] = part;
numParts++;
temp = temp / 10000;
}
boolean beforeWanIsZero = true; // 标志“万”下面一级是不是 0
String chineseStr = "";
for (int i = 0; i < numParts; i++) {
String partChinese = partTranslate(parts[i]);
if (i % 2 == 0) {
if ("".equals(partChinese))
beforeWanIsZero = true;
else
beforeWanIsZero = false;
}
if (i != 0) {
if (i % 2 == 0)
chineseStr = "亿" + chineseStr;
else {
if ("".equals(partChinese) && !beforeWanIsZero) // 如果“万”对应的
// part 为
// 0,而“万”下面一级不为
// 0,则不加“万”,而加“零”
chineseStr = "零" + chineseStr;
else {
if (parts[i - 1] < 1000 && parts[i - 1] > 0) // 如果"万"的部分不为
// 0,
// 而"万"前面的部分小于
// 1000
// 大于 0,
// 则万后面应该跟“零”
chineseStr = "零" + chineseStr;
chineseStr = "万" + chineseStr;
}
}
}
chineseStr = partChinese + chineseStr;
}
if ("".equals(chineseStr)) // 整数部分为 0, 则表达为"零元"
chineseStr = chineseDigits[0];
else if (negative) // 整数部分不为 0, 并且原金额为负数
chineseStr = "负" + chineseStr;
chineseStr = chineseStr + "元";
if (numFen == 0 && numJiao == 0) {
chineseStr = chineseStr + "整";
} else if (numFen == 0) { // 0 分,角数不为 0
chineseStr = chineseStr + chineseDigits[numJiao] + "角";
} else { // “分”数不为 0
if (numJiao == 0)
chineseStr = chineseStr + "零" + chineseDigits[numFen] + "分";
else
chineseStr = chineseStr + chineseDigits[numJiao] + "角" + chineseDigits[numFen] + "分";
}
return chineseStr;
}
/**
* 把一个 0~9999 之间的整数转换为汉字的字符串,如果是 0 则返回 ""
*
* @param amountPart
* @return
*/
private static String partTranslate(int amountPart) {
if (amountPart < 0 || amountPart > 10000) {
throw new IllegalArgumentException("参数必须是大于等于 0,小于 10000 的整数!");
}
String[] units = new String[] { "", "拾", "佰", "仟" };
int temp = amountPart;
String amountStr = new Integer(amountPart).toString();
int amountStrLength = amountStr.length();
boolean lastIsZero = true; // 在从低位往高位循环时,记录上一位数字是不是 0
String chineseStr = "";
for (int i = 0; i < amountStrLength; i++) {
if (temp == 0) // 高位已无数据
break;
int digit = temp % 10;
if (digit == 0) { // 取到的数字为 0
if (!lastIsZero) // 前一个数字不是 0,则在当前汉字串前加“零”字;
chineseStr = "零" + chineseStr;
lastIsZero = true;
} else { // 取到的数字不是 0
chineseStr = chineseDigits[digit] + units[i] + chineseStr;
lastIsZero = false;
}
temp = temp / 10;
}
return chineseStr;
}
}