How to convert Image to Base64 using Apache Commons?

If you are on v6 or greater you can use DatatypeConverter. Then your code will be look like below.

String base64String = DatatypeConverter.printBase64Binary(baos.toByteArray());
byte[] bytearray = DatatypeConverter.parseBase64Binary(base64String);

Or,

You can also use: java.util.Base64 which is added in Java 1.8

String base64String = new String(Base64.getEncoder().encode(bytesToEncode));
byte[] decordedValue = Base64.getDecoder().decode(base64String);

Or, you can make a method calling procedure in apache commons that is given below

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.binary.StringUtils;

public String decode(String s) {
    return StringUtils.newStringUtf8(Base64.decodeBase64(s));
}
public String encode(String s) {
    return Base64.encodeBase64String(StringUtils.getBytesUtf8(s));
}

Resource Link:

1. org.apache.commons.codec.binary.base64 Example
2. how to avoid warning for the Base 64?

Original Link: https://stackoverflow.com/a/37431291/2293534