java 阿拉伯人民币转换为中文

import java.text.NumberFormat;
import java.util.HashMap;

public class ConvertChinesQ {

 public static final String EMPTY = "";
 public static final String ZERO = "零";
 public static final String ONE = "壹";
 public static final String TWO = "贰";
 public static final String THREE = "叁";
 public static final String FOUR = "肆";
 public static final String FIVE = "伍";
 public static final String SIX = "陆";
 public static final String SEVEN = "柒";
 public static final String EIGHT = "捌";
 public static final String NINE = "玖";
 public static final String TEN = "拾";
 public static final String HUNDRED = "佰";
 public static final String THOUSAND = "仟";
 public static final String TEN_THOUSAND = "万";
 public static final String HUNDRED_MILLION = "亿";
 public static final String YUAN = "元";
 public static final String JIAO = "角";
 public static final String FEN = "分";
 public static final String DOT = ".";

 private static ConvertChinesQ formatter = null;

 private HashMap chineseNumberMap = new HashMap();
 private HashMap chineseMoneyPattern = new HashMap();
 private NumberFormat numberFormat = NumberFormat.getInstance();

 private ConvertChinesQ() {
  numberFormat.setMaximumFractionDigits(4);
  numberFormat.setMinimumFractionDigits(2);
  numberFormat.setGroupingUsed(false);

  chineseNumberMap.put("0", ZERO);
  chineseNumberMap.put("1", ONE);
  chineseNumberMap.put("2", TWO);
  chineseNumberMap.put("3", THREE);
  chineseNumberMap.put("4", FOUR);
  chineseNumberMap.put("5", FIVE);
  chineseNumberMap.put("6", SIX);
  chineseNumberMap.put("7", SEVEN);
  chineseNumberMap.put("8", EIGHT);
  chineseNumberMap.put("9", NINE);
  chineseNumberMap.put(DOT, DOT);

  chineseMoneyPattern.put("1", TEN);
  chineseMoneyPattern.put("2", HUNDRED);
  chineseMoneyPattern.put("3", THOUSAND);
  chineseMoneyPattern.put("4", TEN_THOUSAND);
  chineseMoneyPattern.put("5", TEN);
  chineseMoneyPattern.put("6", HUNDRED);
  chineseMoneyPattern.put("7", THOUSAND);
  chineseMoneyPattern.put("8", HUNDRED_MILLION);
 }

 public static ConvertChinesQ getInstance() {
  if (formatter == null)
   formatter = new ConvertChinesQ();
  return formatter;
 }

 public String format(String moneyStr) {
  checkPrecision(moneyStr);
  String result;
  result = convertToChineseNumber(moneyStr);
  result = addUnitsToChineseMoneyString(result);
  return result;
 }

 public String format(double moneyDouble) {
  return format(numberFormat.format(moneyDouble));
 }

 public String format(int moneyInt) {
  return format(numberFormat.format(moneyInt));
 }

 public String format(long moneyLong) {
  return format(numberFormat.format(moneyLong));
 }

 public String format(Number moneyNum) {
  return format(numberFormat.format(moneyNum));
 }

 private String convertToChineseNumber(String moneyStr) {
  String result;
  StringBuffer cMoneyStringBuffer = new StringBuffer();
  for (int i = 0; i < moneyStr.length(); i++) {
   cMoneyStringBuffer.append(chineseNumberMap.get(moneyStr.substring(
     i, i + 1)));
  }
  //拾佰仟万亿等都是汉字里面才有的单位，加上它们
  int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
  int moneyPatternCursor = 1;
  for (int i = indexOfDot - 1; i > 0; i--) {
   cMoneyStringBuffer.insert(i, chineseMoneyPattern.get(EMPTY
     + moneyPatternCursor));
   moneyPatternCursor = moneyPatternCursor == 8 ? 1
     : moneyPatternCursor + 1;
  }

  String fractionPart = cMoneyStringBuffer.substring(cMoneyStringBuffer
    .indexOf("."));
  cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("."),
    cMoneyStringBuffer.length());
  while (cMoneyStringBuffer.indexOf("零拾") != -1) {
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零拾"),
     cMoneyStringBuffer.indexOf("零拾") + 2, ZERO);
  }
  while (cMoneyStringBuffer.indexOf("零佰") != -1) {
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零佰"),
     cMoneyStringBuffer.indexOf("零佰") + 2, ZERO);
  }
  while (cMoneyStringBuffer.indexOf("零仟") != -1) {
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零仟"),
     cMoneyStringBuffer.indexOf("零仟") + 2, ZERO);
  }
  while (cMoneyStringBuffer.indexOf("零万") != -1) {
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零万"),
     cMoneyStringBuffer.indexOf("零万") + 2, TEN_THOUSAND);
  }
  while (cMoneyStringBuffer.indexOf("零亿") != -1) {
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零亿"),
     cMoneyStringBuffer.indexOf("零亿") + 2, HUNDRED_MILLION);
  }
  while (cMoneyStringBuffer.indexOf("零零") != -1) {
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零零"),
     cMoneyStringBuffer.indexOf("零零") + 2, ZERO);
  }
  if (cMoneyStringBuffer.lastIndexOf(ZERO) == cMoneyStringBuffer.length() - 1)
   cMoneyStringBuffer.delete(cMoneyStringBuffer.length() - 1,
     cMoneyStringBuffer.length());
  cMoneyStringBuffer.append(fractionPart);

  result = cMoneyStringBuffer.toString();
  return result;
 }

 private String addUnitsToChineseMoneyString(String moneyStr) {
  String result;
  StringBuffer cMoneyStringBuffer = new StringBuffer(moneyStr);
  int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
  cMoneyStringBuffer.replace(indexOfDot, indexOfDot + 1, YUAN);
  cMoneyStringBuffer.insert(cMoneyStringBuffer.length() - 1, JIAO);
  cMoneyStringBuffer.insert(cMoneyStringBuffer.length(), FEN);
  if (cMoneyStringBuffer.indexOf("零角零分") != -1)//没有零头，加整
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零角零分"),
     cMoneyStringBuffer.length(), "整");
  else if (cMoneyStringBuffer.indexOf("零分") != -1)//没有零分，加整
   cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零分"),
     cMoneyStringBuffer.length(), "整");
  else {
   if (cMoneyStringBuffer.indexOf("零角") != -1)
    cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("零角"),
      cMoneyStringBuffer.indexOf("零角") + 2);
   // tmpBuffer.append("整");
  }
  result = cMoneyStringBuffer.toString();
  return result;
 }

 private void checkPrecision(String moneyStr) {
  int fractionDigits = moneyStr.length() - moneyStr.indexOf(DOT) - 1;
  if (fractionDigits > 2)
   throw new RuntimeException("金额" + moneyStr + "的小数位多于两位。"); //精度不能比分低
 }

 public static void main(String args[]) throws Exception{
  System.out.println(getInstance().format(new Double(10000001.01)));
  throw new Exception("slkdfjsk");
 }
}