Java金额大小写的转换方法

本文实例为大家分享了Java金额大小写转换的具体代码，供大家参考，具体内容如下

 
public class MoneyUtil { 
   
  private static final String[] NUMBERS = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" }; 
   
  private static final String[] IUNIT = { "元", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾", "佰", "仟", "万", "拾", "佰", 
      "仟" }; 
   
  private static final String[] DUNIT = { "角", "分", "厘" }; 
 
   
  public static String toChinese(String str) { 
    str = str.replaceAll(",", "");// 去掉"," 
    String integerStr;// 整数部分数字 
    String decimalStr;// 小数部分数字 
 
    // 初始化：分离整数部分和小数部分 
    if (str.indexOf(".") > 0) { 
      integerStr = str.substring(0, str.indexOf(".")); 
      decimalStr = str.substring(str.indexOf(".") + 1); 
    } else if (str.indexOf(".") == 0) { 
      integerStr = ""; 
      decimalStr = str.substring(1); 
    } else { 
      integerStr = str; 
      decimalStr = ""; 
    } 
    // integerStr去掉首0，不必去掉decimalStr的尾0(超出部分舍去) 
    if (!integerStr.equals("")) { 
      integerStr = Long.toString(Long.parseLong(integerStr)); 
      if (integerStr.equals("0")) { 
 integerStr = ""; 
      } 
    } 
    // overflow超出处理能力，直接返回 
    if (integerStr.length() > IUNIT.length) { 
      System.out.println(str + ":超出处理能力"); 
      return str; 
    } 
 
    int[] integers = toArray(integerStr);// 整数部分数字 
    boolean isMust5 = isMust5(integerStr);// 设置万单位 
    int[] decimals = toArray(decimalStr);// 小数部分数字 
    return getChineseInteger(integers, isMust5) + getChineseDecimal(decimals); 
  } 
 
   
  private static int[] toArray(String number) { 
    int[] array = new int[number.length()]; 
    for (int i = 0; i < number.length(); i++) { 
      array[i] = Integer.parseInt(number.substring(i, i + 1)); 
    } 
    return array; 
  } 
 
   
  private static String getChineseInteger(int[] integers, boolean isMust5) { 
    StringBuffer chineseInteger = new StringBuffer(""); 
    int length = integers.length; 
    for (int i = 0; i < length; i++) { 
      // 0出现在关键位置：1234(万)5678(亿)9012(万)3456(元) 
      // 特殊情况：10(拾元、壹拾元、壹拾万元、拾万元) 
      String key = ""; 
      if (integers[i] == 0) { 
 if ((length - i) == 13)// 万(亿)(必填) 
   key = IUNIT[4]; 
 else if ((length - i) == 9)// 亿(必填) 
   key = IUNIT[8]; 
 else if ((length - i) == 5 && isMust5)// 万(不必填) 
   key = IUNIT[4]; 
 else if ((length - i) == 1)// 元(必填) 
   key = IUNIT[0]; 
 // 0遇非0时补零，不包含最后一位 
 if ((length - i) > 1 && integers[i + 1] != 0) 
   key += NUMBERS[0]; 
      } 
      chineseInteger.append(integers[i] == 0 ? key : (NUMBERS[integers[i]] + IUNIT[length - i - 1])); 
    } 
    return chineseInteger.toString(); 
  } 
 
   
  private static String getChineseDecimal(int[] decimals) { 
    StringBuffer chineseDecimal = new StringBuffer(""); 
    for (int i = 0; i < decimals.length; i++) { 
      // 舍去3位小数之后的 
      if (i == 3) 
 break; 
      chineseDecimal.append(decimals[i] == 0 ? "" : (NUMBERS[decimals[i]] + DUNIT[i])); 
    } 
    return chineseDecimal.toString(); 
  } 
 
   
  private static boolean isMust5(String integerStr) { 
    int length = integerStr.length(); 
    if (length > 4) { 
      String subInteger = ""; 
      if (length > 8) { 
 // 取得从低位数，第5到第8位的字串 
 subInteger = integerStr.substring(length - 8, length - 4); 
      } else { 
 subInteger = integerStr.substring(0, length - 4); 
      } 
      return Integer.parseInt(subInteger) > 0; 
    } else { 
      return false; 
    } 
  } 
 
  public static void main(String[] args) { 
    String number = "1.23"; 
    System.out.println(number + " " + MoneyUtil.toChinese(number)); 
    number = "1234567890123456.123"; 
    System.out.println(number + " " + MoneyUtil.toChinese(number)); 
    number = "0.0798"; 
    System.out.println(number + " " + MoneyUtil.toChinese(number)); 
    number = "10,001,000.09"; 
    System.out.println(number + " " + MoneyUtil.toChinese(number)); 
    number = "01.107700"; 
    System.out.println(number + " " + MoneyUtil.toChinese(number)); 
  } 
 
} 

运行结果为：

1.23 壹元贰角叁分 
1234567890123456.123 壹仟贰佰叁拾肆万伍仟陆佰柒拾捌亿玖仟零壹拾贰万叁仟肆佰伍拾陆元壹角贰分叁厘 
0.0798 柒分玖厘 
10,001,000.09 壹仟万零壹仟元玖分 
01.107700 壹元壹角柒厘 

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