增加数字转为英文金额的工具类

src/main/java/com/uas/report/util/NumberParser.java

@@ -0,0 +1,123 @@
+package com.uas.report.util;
+
+/**
+ * 数字转为英文金额（用于UAS系统的模板制作）
+ * 
+ * @author sunyj
+ * @since 2017年7月13日 上午9:57:00
+ */
+public class NumberParser {
+
+	private static final String[] SINGLE_NUM_ARR = { "", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight",
+			"Nine" };
+
+	private static final String[] TEN_NUM_ARR = { "Ten", "Eleven", "Tweleve", "Thirteen", "Fourteen", "Fifteen",
+			"Sixteen", "Seventeen", "Eighteen", "Nineteen" };
+
+	private static final String[] TEN_INTEGER_ARR = { "Ten", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy",
+			"Eighty", "Ninety" };
+
+	public static String parse(String x) {
+		if (Double.parseDouble(x) <= 0.0D) {
+			return "Zero Cents only";
+		}
+		int z = x.indexOf(".");
+		String lstr = "";
+		String rstr = "";
+		if (z > -1) {
+			lstr = x.substring(0, z);
+			rstr = x.substring(z + 1);
+		} else {
+			lstr = x;
+		}
+		String lstrrev = reverse(lstr);
+		String[] a = new String[5];
+
+		switch (lstrrev.length() % 3) {
+		case 1:
+			lstrrev = lstrrev + "00";
+			break;
+		case 2:
+			lstrrev = lstrrev + "0";
+		}
+
+		String lm = "";
+		for (int i = 0; i < lstrrev.length() / 3; i++) {
+			a[i] = reverse(lstrrev.substring(3 * i, 3 * i + 3));
+			if (!a[i].equals("000")) {
+				if (i != 0) {
+					lm = transThree(a[i]) + " " + parseMore(String.valueOf(i)) + " " + lm;
+				} else
+					lm = transThree(a[i]);
+			} else {
+				lm = lm + transThree(a[i]);
+			}
+		}
+		String xs = "";
+		if (z > -1) {
+			String transTwo = transTwo(rstr);
+			if ((transTwo == null) || ("".equals(transTwo))) {
+				xs = "";
+			} else {
+				xs = "and " + transTwo + " Cents ";
+			}
+		}
+		return lm.trim() + " " + xs + "only";
+	}
+
+	private static String parseFirst(String s) {
+		return SINGLE_NUM_ARR[Integer.parseInt(s.substring(s.length() - 1))];
+	}
+
+	private static String parseTeen(String s) {
+		return TEN_NUM_ARR[(Integer.parseInt(s) - 10)];
+	}
+
+	private static String parseTen(String s) {
+		return TEN_INTEGER_ARR[(Integer.parseInt(s.substring(0, 1)) - 1)];
+	}
+
+	private static String transTwo(String s) {
+		String value = "";
+
+		if (s.length() > 2) {
+			s = s.substring(0, 2);
+		} else if (s.length() < 2) {
+			s = s + "0";
+		}
+		if (s.startsWith("0")) {
+			value = parseFirst(s);
+		} else if (s.startsWith("1")) {
+			value = parseTeen(s);
+		} else if (s.endsWith("0")) {
+			value = parseTen(s);
+		} else
+			value = parseTen(s) + " " + parseFirst(s);
+		return value;
+	}
+
+	private static String parseMore(String s) {
+		String[] a = { "", "Thousand", "Million", "Billion" };
+		return a[Integer.parseInt(s)];
+	}
+
+	private static String transThree(String s) {
+		String value = "";
+		if (s.startsWith("0")) {
+			value = transTwo(s.substring(1));
+		} else if (s.substring(1).equals("00")) {
+			value = parseFirst(s.substring(0, 1)) + " Hundred";
+		} else
+			value = parseFirst(s.substring(0, 1)) + " Hundred and " + transTwo(s.substring(1));
+		return value;
+	}
+
+	private static String reverse(String s) {
+		char[] aChr = s.toCharArray();
+		StringBuffer tmp = new StringBuffer();
+		for (int i = aChr.length - 1; i >= 0; i--) {
+			tmp.append(aChr[i]);
+		}
+		return tmp.toString();
+	}
+}