名字脱敏再hutool的基础上进行修改

公众号：踏歌的 Java Daily

		// 调用
		String name = "江踏歌";
		String replace = replace(name , 1, name .length(), '*');

    public static String replace(CharSequence str, int startInclude, int endExclude, char replacedChar) {
        if (isEmpty(str)) {
            return str(str);
        }
        final String originalStr = str(str);
        int[] strCodePoints = originalStr.codePoints().toArray();
        final int strLength = strCodePoints.length;
        if (startInclude > strLength) {
            return originalStr;
        }
        if (endExclude > strLength) {
            endExclude = strLength;
        }
        if (startInclude > endExclude) {
            // 如果起始位置大于结束位置，不替换
            return originalStr;
        }
		// hutool中没有这一段，主要是我要实现江*歌如果用他的就是江**,所以这里传length-1,但是名字为张三就不脱敏这里给长度为1的赋值为2
        if (endExclude == 1) {
            endExclude = 2;
        }
        final StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < strLength; i++) {
            if (i >= startInclude && i < endExclude) {
                stringBuilder.append(replacedChar);
            } else {
                stringBuilder.append(new String(strCodePoints, i, 1));
            }
        }
        return stringBuilder.toString();
    }

    
    public static String str(CharSequence cs) {
        return null == cs ? null : cs.toString();
    }

    public static boolean isEmpty(CharSequence str) {
        return str == null || str.length() == 0;
    }

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