Java8 Base64

• Base64 已加入到Java8官方库中，且支持 URL 和 MINE 编码解码：
  • Base64.getUrlEncoder()
  • Base64.getUrlDecoder()
  • Base64.getMimeEncoder()
  • Base64.getMimeDecoder()

public class Base64s {
    public static void main(String[] args) {
        final String text = "Base64 finally in Java 8!";
        
        final String encoded = Base64
            .getEncoder()
            .encodeToString( text.getBytes( StandardCharsets.UTF_8 ) );
        System.out.println( encoded );
        
        final String decoded = new String( 
            Base64.getDecoder().decode( encoded ),
            StandardCharsets.UTF_8 );
        System.out.println( decoded );
    }
}