public static byte[] decode(String str) {
        return org.apache.commons.codec.binary.Base64.decodeBase64(str);
    }
Base64
@author egan
<pre>
email egzosn@gmail.com

create 2019/05/15 12:50
</pre>
pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/Base64.java