<span style="font-family:Times New Roman;font-size:14px;">package cn.hncu.encoder; 
import java.io.IOException; 
import sun.misc.BASE64Decoder; 
import sun.misc.BASE64Encoder; 
 
public class Base64 { 
  public static void main(String[] args) { 
    try { 
    String name="我爱你"; 
    String pwd="你却不知道。"; 
    BASE64Encoder en=new BASE64Encoder(); 
    name=en.encode(name.getBytes("utf-8"));//5oiR54ix5L2g 
    pwd=en.encode(pwd.getBytes("utf-8"));//5L2g5Y205LiN55+l6YGT44CC 
    System.out.println(name+","+pwd); 
     
    BASE64Decoder den=new BASE64Decoder(); 
    name=new String(den.decodeBuffer(name),"utf-8"); 
    pwd=new String(den.decodeBuffer(pwd),"utf-8"); 
    System.out.println(name+","+pwd); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
  } 
} 
</span>