AmountUtils.java
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package com.rnt.utils;
import java.math.BigDecimal;
import com.zteits.clouds.api.apibase.constants.ErrorType;
import com.zteits.clouds.api.apibase.exception.BizException;
/**
*
* Copyright: Copyright (c) 2017 ZTE-ITS
*
* @ClassName: AmountUtils.java
* @Description:
* @version: v1.0.0
* @author: wangbiao
* @date: 2017年6月27日 下午5:24:43
* Modification History:
* Date Author Version Description
*---------------------------------------------------------*
* 2017年6月27日 wangbiao v1.0.0 创建
*/
public class AmountUtils {
/**金额为分的格式 */
public static final String CURRENCY_FEN_REGEX = "\\-?[0-9]+";
private AmountUtils() {
}
/**
* 将分为单位的转换为元并返回金额格式的字符串 （除100）
*
* @param amount
* @return
* @throws Exception
*/
public static String changeF2Y(Long amount){
if(!amount.toString().matches(CURRENCY_FEN_REGEX)) {
throw new BizException(ErrorType.BIZ_ERROR, "金额格式有误!");
}
int flag = 0;
String amString = amount.toString();
if(amString.charAt(0)=='-'){
flag = 1;
amString = amString.substring(1);
}
StringBuilder result = new StringBuilder();
if(amString.length()==1){
result.append("0.0").append(amString);
}else if(amString.length() == 2){
result.append("0.").append(amString);
}else{
String intString = amString.substring(0,amString.length()-2);
for(int i=1; i<=intString.length();i++){
if( (i-1)%3 == 0 && i !=1){
result.append(",");
}
result.append(intString.substring(intString.length()-i,intString.length()-i+1));
}
result.reverse().append(".").append(amString.substring(amString.length()-2));
}
if(flag == 1){
return "-"+result.toString();
}else{
return result.toString();
}
}
/**
* 将分为单位的转换为元 （除100）
*
* @param amount
* @return
* @throws Exception
*/
public static String changeF2Y(String amount){
if(!amount.matches(CURRENCY_FEN_REGEX)) {
throw new BizException(ErrorType.BIZ_ERROR, "金额格式有误!");
}
return BigDecimal.valueOf(Long.valueOf(amount)).divide(new BigDecimal(100)).toString();
}
/**
* 将元为单位的转换为分 （乘100）
*
* @param amount
* @return
*/
public static String changeY2F(Long amount){
return BigDecimal.valueOf(amount).multiply(new BigDecimal(100)).toString();
}
/**
* 将元为单位的转换为分 替换小数点，支持以逗号区分的金额
*
* @param amount
* @return
*/
public static String changeY2F(String amount){
String currency = amount.replaceAll("\\$|\\￥|\\,", ""); //处理包含, ￥ 或者$的金额
int index = currency.indexOf('.');
int length = currency.length();
Long amLong = 0l;
if(index == -1){
amLong = Long.valueOf(currency+"00");
}else if(length - index >= 3){
amLong = Long.valueOf((currency.substring(0, index+3)).replace(".", ""));
}else if(length - index == 2){
amLong = Long.valueOf((currency.substring(0, index+2)).replace(".", "")+0);
}else{
amLong = Long.valueOf((currency.substring(0, index+1)).replace(".", "")+"00");
}
return amLong.toString();
}
/**
* 数字金额大写转换，思想先写个完整的然后将如零拾替换成零
* 要用到正则表达式
*/
public static String moneyUpperCase(double n){
String fraction[] = {"角", "分"};
String digit[] = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };
String unit[][] = {{"元", "万", "亿"},
{"", "拾", "佰", "仟"}};
String head = n < 0? "负": "";
n = Math.abs(n);
String s = "";
for (int i = 0; i < fraction.length; i++) {
double f1= new BigDecimal(n).setScale(2,BigDecimal.ROUND_HALF_UP).multiply(new BigDecimal(10 * Math.pow(10, i))).doubleValue();
s += (digit[(int) (Math.floor(f1) % 10)] + fraction[i]).replaceAll("(零.)+", "");
}
if(s.length()<1){
s = "整";
}
int integerPart = (int)Math.floor(n);
for (int i = 0; i < unit[0].length && integerPart > 0; i++) {
String p ="";
for (int j = 0; j < unit[1].length && n > 0; j++) {
p = digit[integerPart%10]+unit[1][j] + p;
integerPart = integerPart/10;
}
s = p.replaceAll("(零.)*零$", "").replaceAll("^$", "零") + unit[0][i] + s;
}
return head + s.replaceAll("(零.)*零元", "元").replaceFirst("(零.)+", "").replaceAll("(零.)+", "零").replaceAll("^整$", "零元整");
}
/**
* @param args
*/
public static void main(String[] args) {
String str ="200";
BigDecimal big = new BigDecimal(str);
System.out.println(AmountUtils.changeF2Y(str));
}
}