aes加密 工具类

package com.skynet.common;

import java.net.URLDecoder;
import java.net.URLEncoder;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;

/**
 * 
 * <p>Title: 天网HIS提供的加密要求实现类</p>
 * <p>Description: </p>
 *
 * @author Torlay
 * @version 1.00.00
 * <pre>
 * 修改记录:
 * 版本号    修改人        修改日期       修改内容
 * 
*
 */

@SuppressWarnings("restriction")
public class EncryptUtil {

    /**
     * aes加密
     * @param str
     * @param key
     * @return
     * @throws Exception
     */
    public static String aesEncrypt(String str, String key) throws Exception {
        if (str == null || key == null) return null;
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(key.getBytes("utf-8"), "AES"));
        byte[] bytes = cipher.doFinal(str.getBytes("utf-8"));
        //注意不要采用，会出现回车换行 new BASE64Encoder().encode(bytes);
        return Base64.encodeBase64String(bytes);
    }

    /**
     * aes解密
     * @param str
     * @param key
     * @return
     * @throws Exception
     */
    public static String aesDecrypt(String str, String key) throws Exception {
        if (str == null || key == null) return null;
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(key.getBytes("utf-8"), "AES"));
        byte[] bytes = Base64.decodeBase64(str);
        bytes = cipher.doFinal(bytes);
        return new String(bytes, "utf-8");
    }
    
    
    public static void main(String[] args) {
        String content = "{'cardID':'000064755961172','modeType':'1','money':'1000','serialNumber':'1011010000'}";  
        System.out.println("加密前：" + content);  
  
        String key = "YF}+efcaj{+oESb9";  
        System.out.println("加密密钥和解密密钥：" + key);  
          
        try {
            String encrypt = aesEncrypt(content, key);  
            System.out.println("加密后：" + encrypt);  
            
            System.out.println(URLEncoder.encode(encrypt));
            
            System.out.println(URLDecoder.decode(encrypt));
              
            String decrypt = aesDecrypt(encrypt, key);  
            System.out.println("解密后：" + decrypt);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }  
    }
}

加密工具类