如何在没有Bom的UTF-8中将字符串转换为byteArray

Question

I converted text to Base64 byteArray without any problem. Unfortunately, the converted string needs to start with "PD". It means i should encode it to UTF-8 without BOM not with BOM. I started several codes and everything on the net. But, I could not succeed. Any help is appreciated.

Thank you so much.

Regards Alper

public static byte[] convertToByteArray(String strToBeConverted) {
    return strToBeConverted.getBytes(StandardCharsets.UTF_8);
}

Answer 1

return strToBeConverted.replaceFirst("^\uFEFF", "").getBytes(StandardCharsets.UTF_8);

The BOM is Unicode code point U+FEFF.

Removing it would mean to check first whether it indeed is present. String.replaceFirst is costly, as it uses regular expression matching, but fine here.