java金额转换工具

两个例子
壹拾壹点壹贰
壹拾壹元壹角贰分

package com.ju.common;

import org.apache.commons.lang.StringUtils;

import java.math.BigDecimal;

/**
* 数字转换为汉语中人民币的大写
*
* @author hongten
* @contact hongtenzone@foxmail.com
* @create 2013-08-13
*/
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;

public static String number2CNMontrayUnit(String numberOfMoney){
    return number2CNMontrayUnit(new BigDecimal(numberOfMoney));
}
public static String number2CNMontrayUnit(double numberOfMoney){
    return number2CNMontrayUnit(new BigDecimal(numberOfMoney));
}
/**
 * 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 String number2CN(BigDecimal numberOfMoney) {
    numberOfMoney = numberOfMoney.setScale(2,BigDecimal.ROUND_DOWN);
    String numberOfMoneyS=String.valueOf(numberOfMoney);
    int floatPartLength=0;
    String floatPart=null;
    String integerPart=null;
    String substringZero=null;
    if(numberOfMoneyS.contains(".")){
        int dotIndex=numberOfMoneyS.indexOf(".");
         integerPart=numberOfMoneyS.substring(0,dotIndex);
         substringZero = integerPart.substring(integerPart.length() - 1, integerPart.length());
        floatPart=numberOfMoneyS.substring(dotIndex+1);
        floatPartLength=floatPart.length();

    }
    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);
    }
    String sbStr = sb.toString();
    sbStr=sbStr.replace("元", "").replace("整", "").replace("分", "").replace("角", "").replace("圆", "");
    if(floatPartLength>0&&!floatPart.equals("00")&& StringUtils.isNotBlank(floatPart)){
        StringBuffer sb2 = new StringBuffer();
        int appLength=sbStr.length()-floatPartLength;
        sb2.append(sbStr).insert(appLength,"点");
        if(substringZero.equals("0")){
            int floatPartLength2=floatPartLength+1;
            sb2=sb2.replace(sb2.length()-floatPartLength2-1,sb2.length()-floatPartLength2,"");
        }
        return sb2.toString();
    }else{
        return sbStr;
    }

}
public static void main(String[] args) {
    tes1();
    test2();

}
private static void tes1() {
  /*  int floatPartLength=3;
    StringBuffer sb2 = new StringBuffer();
    sb2.append("壹万零点壹贰");
    sb2=sb2.replace(sb2.length()-floatPartLength-1,sb2.length()-floatPartLength,"");
    System.out.println("sb2"+sb2.toString());*/
    String uUpperNum = NumberToCN.number2CN(new BigDecimal("11.1234567"));          //大写退出份额
    System.out.println(uUpperNum);
}
private static void test2() {
    String uUpperNum = NumberToCN.number2CNMontrayUnit(new BigDecimal("11.1234567"));           //大写退出份额
    System.out.println(uUpperNum);
}

}