如何把输入的阿拉伯数字金额转换成中文大写金额

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








public class MoneyFormat {
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 DOT=".";
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="圆";
public static final String JIAO="角";
public static final String FEN="分";
private static MoneyFormat moneyFormat;
Map<String, String> chineseNumberMap=new HashMap<String, String>();//存放0-9的数字和小数点对应的汉字
Map<Integer, String> chineseMoneyPattern=new HashMap<Integer, String>();//存放拾、佰、仟、万、亿
NumberFormat numberFormat= NumberFormat.getInstance();
private MoneyFormat(){
numberFormat.setMaximumFractionDigits(10);//设置最大的小数位数为4位
numberFormat.setMinimumFractionDigits(2);//设置最小的小数位数为2位
numberFormat.setGroupingUsed(false);//设置不启用分组


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);
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 String format(String moneyStr){
checkPrecision(moneyStr);//检查moneyStr小数部分的合法性
String result=convertToChineseNumber(moneyStr);
return addUnitsToChineseNumberString(result);
}
/*加上人民币单位**/
private String addUnitsToChineseNumberString(String moneyStr) {

StringBuffer sb=new StringBuffer(moneyStr);
int indexDot=moneyStr.indexOf(DOT);
int moneyPatternCusor=1;
for(int i=indexDot-1;i>0;i-- ){//插入拾、佰、仟、万、亿
  sb.insert(i, chineseMoneyPattern.get(moneyPatternCusor));
  //System.out.println("moneyPatternCusor:"+moneyPatternCusor);
  //System.out.println(sb);
  moneyPatternCusor=moneyPatternCusor==8?1:moneyPatternCusor+1;
}
String fractionPart=sb.substring(sb.indexOf(DOT));//小数部分
sb.delete(sb.indexOf(DOT), sb.length());//删除小数部分
System.out.println("未处理0时输出："+sb);
while(sb.indexOf("零拾")!=-1){
  sb.replace(sb.indexOf("零拾"), sb.indexOf("零拾")+2, ZERO);
}
while(sb.indexOf("零佰")!=-1){
  sb.replace(sb.indexOf("零佰"), sb.indexOf("零佰")+2, ZERO);
}
while(sb.indexOf("零仟")!=-1){
  sb.replace(sb.indexOf("零仟"), sb.indexOf("零仟")+2, ZERO);
}
while(sb.indexOf("零万")!=-1){
if(sb.indexOf("亿")!=-1){
   sb.replace(sb.indexOf("零万"), sb.indexOf("零万")+2, ZERO);
}else{
   sb.replace(sb.indexOf("零万"), sb.indexOf("零万")+2, TEN_THOUSAND);
}
}
while(sb.indexOf("零亿")!=-1){
  sb.replace(sb.indexOf("零亿"), sb.indexOf("零亿")+2,HUNDRED_MILLION );
}
while(sb.indexOf("零零")!=-1){
  sb.replace(sb.indexOf("零零"), sb.indexOf("零零")+2, ZERO);
}
if(sb.indexOf(ZERO)==sb.length()-1){
  sb.delete(sb.indexOf(ZERO),sb.length());
}
//处理小数部分
sb.append(fractionPart);
sb.replace(sb.indexOf(DOT), sb.indexOf(DOT)+1, YUAN);
sb.insert(sb.length()-1, JIAO);
sb.insert(sb.length(), FEN);
if(sb.indexOf("零角零分")!=-1){
  sb.replace(sb.indexOf("零角零分"), sb.length(), "整");
}
else if(sb.indexOf("零分")!=-1){
  sb.replace(sb.indexOf("零分"), sb.length(), "整");
}
else 
  {if(sb.indexOf("零角")!=-1){
  sb.delete(sb.indexOf("零角"), sb.indexOf("零角")+2);
}
  }
return sb.toString();
}

/*转换为人民币汉字大写形式**/
private String convertToChineseNumber(String moneyStr) {
StringBuffer sb=new StringBuffer();
for(int i=0;i<moneyStr.length();i++){
  sb.append(chineseNumberMap.get(String.valueOf(moneyStr.charAt(i))));
}
System.out.println("转换成汉字："+sb);

return sb.toString();
}
/*检查moneyStr小数部分的合法性**/
private void checkPrecision(String moneyStr) {
//System.out.println("aaaaa"+moneyStr.length());
//System.out.println("qqqqqqqqqqq"+moneyStr.substring(moneyStr.indexOf(DOT)+1,moneyStr.length()).length());
if(moneyStr.substring(moneyStr.indexOf(DOT)+1,moneyStr.length()).length()>2){
  throw new RuntimeException(moneyStr+"小数部分大于2位");
}
}

public String format(int moneyStr){
return format(numberFormat.format(moneyStr));
}
public String format(long moneyStr){
return format(numberFormat.format(moneyStr));
}
public String format(double moneyStr){
return format(numberFormat.format(moneyStr));
}
public String format(Number moneyStr){
return format(numberFormat.format(moneyStr));
}
public synchronized static MoneyFormat getInctance(){
if(moneyFormat==null){
  moneyFormat=new MoneyFormat();
}
return moneyFormat;
}
public static void main(String[] args) {
System.out.println("最终生成："+MoneyFormat.getInctance().format(new Double(100325600525.30)));
}
}