Java BASE64--JDK，sun公司自带的

package com.spring.springLearn.base64;

import java.io.UnsupportedEncodingException;

import sun.misc.*;

public class Base64One {

public static void main(String[] args) {
String str="123456789";
String strm=Base64One.getBase64(str);
System.out.println(strm);

String strj=Base64One.getFromBase64(strm);
System.out.println(strj);
}
// 加密
@SuppressWarnings("restriction")
public static String getBase64(String str) {
byte[] b = null;
String s = null;
try {
b = str.getBytes("utf-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (b != null) {
s = new BASE64Encoder().encode(b);
}
return s;
}

// 解密
@SuppressWarnings("restriction")
public static String getFromBase64(String s) {
byte[] b = null;
String result = null;
if (s != null) {
BASE64Decoder decoder = new BASE64Decoder();
try {
b = decoder.decodeBuffer(s);
result = new String(b, "utf-8");
} catch (Exception e) {
e.printStackTrace();
}
}
return result;
}

}