网上没看到合适的，自己写了个。
public class ChineseCapitalUtil {
private final static String[] number = {
"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
private final static String[] INTEGER_UNIT = {
"拾", "佰", "仟"};
private final static String[] DECIMAL_UNIT = {
"角", "分"};
private final static String[] RADICES_UNIT = {
"元", "万", "亿"};
private final static Pattern NUMBER_PATTERN = Pattern.compile("^(([1-9]\\d*(\\.(\\d){1,2}))|(0\\.(\\d){1,2}))$");
private final static char baseChar='0';
/**
* 将金额转为中文大写
* @param origin
* @return {@link String}
*/
public static String convert(String origin) {
// 校验参数合法性
if (!NUMBER_PATTERN.matcher(origin).matches()) {
return "";
}
StringBuilder builder = new StringBuilder();
String[] splitArray = origin.split("\\.");
// 处理整数
convertInteger(splitArray[0], builder);
// 处理小数
convertDecimal(splitArray, builder);
return builder.toString();
}
private static void convertInteger(String str, StringBuilder builder) {
// 对于0.xx的直接跳过整数
if (str.length() == 1 && str.charAt(0) == baseChar) {
return;
}
int loop = 0;
int zero = 0;
int radicesIndex = (str.length() - 1) / 4;
// 不足4位则以实际长度循环
int len = Math.min(str.length(), 4);
while (loop < str.length()) {
for (int i = 0; i < len; i++) {
char c = str.charAt(loop);
if (c == baseChar) {
zero++;
} else {
if (zero > 0) {
zero = 0;
builder.append(number[0]);
}
builder.append(number[c - baseChar]);
int integerIndex = (str.length() - loop - 1) % 4;
if (integerIndex > 0) {
builder.append(INTEGER_UNIT[integerIndex - 1]);
}
}
loop++;
}
builder.append(RADICES_UNIT[radicesIndex--]);
}
}
private static void convertDecimal(String[] splitArray, StringBuilder builder) {
if (splitArray.length > 1) {
int decimalIndex = splitArray[1].length();
for (int i = 0; i < decimalIndex; i++) {
// 跳过0
if (splitArray[1].charAt(i) == baseChar) {
continue;
}
char c = splitArray[1].charAt(i);
builder.append(number[c - baseChar]).append(DECIMAL_UNIT[i]);
}
} else {
builder.append("整");
}
}
}