android的 Base64

byte[] key=Base64.decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4".getBytes(), Base64.DEFAULT);

        byte[] data=value.getBytes("UTF-8");

        System.out.println("ECB加密解密");

        byte[] str3 = Des3.des3EncodeECB(key,data );

        byte[] str4 = Des3.ees3DecodeECB(key, str3);

        System.out.println(new String(Base64.encode(str3,  Base64.DEFAULT),"UTF-8"));

        System.out.println(new String(str4, "UTF-8"));android的 Base64