java 转化金额成人民币大写通用方法工具类

package cn.classd.util;

/**
 * programmed by HuangHeliang 2009.04.15 10:20:51
 */
public final class ChangeRMB {

	// 每个数字对应的大写
	private static final String[] num = { "零", "壹", "贰", "叁", "肆", "伍", "陆",
			"柒", "捌", "玖", };

	// 从低到高排列的单位
	private static final String[] bit = { "圆", "拾", "佰", "仟", "万", "拾", "佰",
			"仟", "亿", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿" };

	// 金额里面的角和分
	private static final String[] jf = { "角", "分" };

	/**
	 * 处理金额的整数部分,返回"...圆整"
	 *
	 * @param integer
	 * @return String
	 * @throws Exception
	 */
	public static String praseUpcaseRMB(String integer) throws Exception {
		StringBuilder sbdr = new StringBuilder("");

		int j = integer.length();

		if (j > bit.length)
			throw new Exception("\n只能处理亿万亿以内的数据(含亿万亿)!");

		char[] rmb = integer.toCharArray();
		for (int i = 0; i < rmb.length; i++) {
			int numLocate = Integer.parseInt("" + rmb[i]); // 大写数字位置
			int bitLocate = j - 1 - i; // 数字单位的位置

			/*
			 * 连续大写零只添加一个
			 */
			if (numLocate == 0) {
				if (!sbdr.toString().endsWith(num[0])) {
					sbdr.append(num[numLocate]);
				}
				continue;
			}

			/*
			 * 下面的if语句保证 10065004583.05-->壹佰亿陆仟伍佰万肆仟伍佰捌拾叁圆零伍分
			 */
			if (bit[bitLocate].equals("仟")) {
				String s = sbdr.toString();
				if (!s.endsWith(bit[bitLocate + 1]) && s.length() > 0) {
					if (s.endsWith(num[0])) {
						sbdr.deleteCharAt(sbdr.length() - 1);
					}
					sbdr.append(bit[bitLocate + 1]);
				}
			}

			sbdr.append(num[numLocate]);
			sbdr.append(bit[bitLocate]);

		}// end for

		/*
		 * 去掉结尾"零"后,补全
		 */
		if (sbdr.toString().endsWith(num[0])) {
			sbdr.deleteCharAt(sbdr.length() - 1);
			sbdr.append("圆整");
		} else {
			sbdr.append("整");
		}

		return sbdr.toString();
	}

	/**
	 * 处理带小数的金额,整数部分交由上一个方法处理,小数部分自己处理
	 *
	 * @param integer
	 * @param decimal
	 * @return String
	 * @throws Exception
	 */
	public static String praseUpcaseRMB(String integer, String decimal)
			throws Exception {

		String ret = ChangeRMB.praseUpcaseRMB(integer);
		ret = ret.split("整")[0]; // 处理整数部分
		StringBuilder sbdr = new StringBuilder("");
		sbdr.append(ret);

		char[] rmbjf = decimal.toCharArray();
		for (int i = 0; i < rmbjf.length; i++) {
			int locate = Integer.parseInt("" + rmbjf[i]);
			if (locate == 0) {
				if (!sbdr.toString().endsWith(num[0])) {
					sbdr.append(num[locate]);
				}
				continue;
			}
			sbdr.append(num[locate]);
			sbdr.append(jf[i]);
		}

		return sbdr.toString();
	}

	/**
	 * 将double形式的字符串(有两位小数或无小数)转换成人民币的大写格式
	 *
	 * @param doubleStr
	 * @return String
	 * @throws Exception
	 */
	public static String doChangeRMB(String doubleStr) throws Exception {
		String result = null;

		if (doubleStr.contains(".")) { // 金额带小数
			int dotloc = doubleStr.indexOf(".");
			int strlen = doubleStr.length();

			String integer = doubleStr.substring(0, dotloc);
			String decimal = doubleStr.substring(dotloc + 1, strlen);

			result = ChangeRMB.praseUpcaseRMB(integer, decimal);
		} else { // 金额是整数
			String integer = doubleStr;
			result = ChangeRMB.praseUpcaseRMB(integer);
		}

		return result;
	}

	/**
	 * 将double数值(有两位小数或无小数)转换成人民币的大写格式
	 *
	 * @param rmbDouble
	 * @return String
	 * @throws Exception
	 */
	public static String doChangeRMB(double rmbDouble) throws Exception {
		String result = null;
		double theInt = Math.rint(rmbDouble);
		if (theInt > rmbDouble) {
			theInt -= 1;
		}
		double theDecimal = rmbDouble - theInt;

		String integer = new Long((long) theInt).toString();
		String decimal = "" + Math.round(theDecimal * 100);
		if (decimal.equals("0")) {
			result = ChangeRMB.praseUpcaseRMB(integer);
		} else {
			result = ChangeRMB.praseUpcaseRMB(integer, decimal);
		}

		// 小数是零结尾的
		if (result.charAt(result.length() - 1) == '零') {
			result = result.substring(0, result.length() - 1);
		}
		return result;
	}
	/*
	 * test public static void main(String[] args) throws Exception{
	 * System.out.print("输入小写人民币金额:"); BufferedReader br = new
	 * BufferedReader(new InputStreamReader(System.in)); String in =
	 * br.readLine();
	 *
	 * String result=ChangeRMB.doChangeRMB(in);
	 *
	 * System.out.println("\n"+"------------转换结果------------");
	 * System.out.println(result);
	 *
	 * double d=54628569856.68; String ret=ChangeRMB.doChangeRMB(d);
	 * System.out.println("\n"+"------------转换结果------------");
	 * System.out.println(ret); }
	 */
}