Android 自帶Base64加密解密

Android項目引用不到如下兩個java類

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

Android有本身的base64類

import android.util.Base64

//import android.util.Base64;  
String str = "Hello!";  
//base64編碼  
//String strBase64 = new String(Base64.encode(str.getBytes(), Base64.DEFAULT));  
String strBase64 = Base64.encodeToString(str.getBytes(), Base64.DEFAULT);  
//base64解碼  
String str2 = new String(Base64.decode(strBase64.getBytes(), Base64.DEFAULT));