java base64 编码 解码

import java.io.IOException;

import java.io.UnsupportedEncodingException;

import org.junit.Test;

import sun.misc.BASE64Encoder;

import sun.misc.BASE64Decoder;

public class Demo1 {

@Test

public void testBase64() throws IOException {

// BASE64编码

String s = "Username";

BASE64Encoder encoder = new BASE64Encoder();

s = encoder.encode(s.getBytes("UTF-8"));

System.out.println(s);

// BASE64解码

BASE64Decoder decoder = new BASE64Decoder();

byte[] bytes = decoder.decodeBuffer("dXNlcm5hbWU6");

System.out.println(new String(bytes, "UTF-8"));

}

}