Java Base64 加密解密

使用JDK的类 BASE64Decoder  BASE64Encoder

package test;

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

/**
 * BASE64加密解密
 */
public class BASE64
{

    /**
     * BASE64解密
   * @param key
     * @return
     * @throws Exception
     */
    public static byte[] decryptBASE64(String key) throws Exception {
        return (new BASE64Decoder()).decodeBuffer(key);
    }

    /**
     * BASE64加密
   * @param key
     * @return
     * @throws Exception
     */
    public static String encryptBASE64(byte[] key) throws Exception {
        return (new BASE64Encoder()).encodeBuffer(key);
    }

    public static void main(String[] args) throws Exception
    {
        String para = "{"IdList1": 1,"IdList2": [1,2,3,4,5,6,18],"IdList3": [1,2]}";
        String data = BASE64.encryptBASE64(para.getBytes());
        System.out.println("加密前："+data);

        byte[] byteArray = BASE64.decryptBASE64(data);
        System.out.println("解密后："+new String(byteArray));
    }
}

   使用Apache commons codec 类Base64获取【下载地址】  

package test;

import java.io.UnsupportedEncodingException;

import org.apache.commons.codec.binary.Base64;



public class Base64Util {

    public static String encode(byte[] binaryData) throws UnsupportedEncodingException {
        return new String(Base64.encodeBase64(binaryData), "UTF-8");
    }

    public static byte[] decode(String base64String) throws UnsupportedEncodingException {
        return Base64.decodeBase64(base64String.getBytes("UTF-8"));
    }


    public static void main(String[] args) throws UnsupportedEncodingException {
        String para = "{"IdList1": 1,"IdList2": [1,2,3,4,5,6,18],"IdList3": [1,2]}";
        String data = Base64Util.encode(para.getBytes());
        System.out.println("加密前："+data);

        byte[] byteArray = Base64Util.decode(data);
        System.out.println("解密后："+new String(byteArray));
    }


}