过滤(搜索和替换)InputStream中的字节数组

byte[] inputBytes = IOUtils.toByteArray(inputStream);

byte[] searchBytes = "search".getBytes();
byte[] replaceBytes = "replace".getBytes();

int index = -1;
while ((index = indexOf(inputBytes, searchBytes, index + 1)) != -1) {
    System.arraycopy(replaceBytes, 0, inputBytes, index, replaceBytes.length);
}

public static int indexOf(byte[] source, byte[] target, int fromIndex) {
    if (fromIndex >= source.length) {
        return -1;
    }
    if (fromIndex < 0) {
        fromIndex = 0;
    }
    int targetLength = target.length;
    int sourceLength = source.length;

    for (int i = fromIndex; i <= sourceLength - targetLength; i++) {
        boolean found = true;
        for (int j = 0; j< targetLength; j++) {
            if (source[i + j] != target[j]) {
                found = false;
                break;
            }
        }
        if (found) {
            return i;
        }
    }
    return -1;
}

InputStream filteredInputStream = new ByteArrayInputStream(inputBytes);