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				package com.yihu.jw.entity.util; 
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				import org.apache.commons.codec.binary.Base64; 
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				import org.springframework.util.StringUtils; 
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				import javax.crypto.Cipher; 
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				import javax.crypto.KeyGenerator; 
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				import javax.crypto.spec.SecretKeySpec; 
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				/** 
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				 * 前后端数据传输加密工具类 
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				 * @author monkey 
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				 * 
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				 */ 
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				public class AesEncryptUtils { 
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				    //可配置到Constant中,并读取配置文件注入,16位,自己定义 
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				    private static final String KEY = "jkzl2021ZJXL*#%a"; 
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				    //参数分别代表 算法名称/加密模式/数据填充方式 
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				    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding"; 
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				    /** 
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				     * 加密 
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				     * @param content 加密的字符串 
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				     * @param encryptKey key值 
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				     * @return 
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				     * @throws Exception 
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				     */ 
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				    public static String encrypt(String content, String encryptKey){ 
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				        try { 
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				            KeyGenerator kgen = KeyGenerator.getInstance("AES"); 
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				            kgen.init(128); 
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				            Cipher cipher = Cipher.getInstance(ALGORITHMSTR); 
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				            cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES")); 
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				            byte[] b = cipher.doFinal(content.getBytes("utf-8")); 
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				            // 采用base64算法进行转码,避免出现中文乱码 
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				            return Base64.encodeBase64String(b); 
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				        }catch (Exception e){ 
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				            e.printStackTrace(); 
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				            return content; 
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				        } 
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				    } 
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				    /** 
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				     * 解密 
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				     * @param encryptStr 解密的字符串 
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				     * @param decryptKey 解密的key值 
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				     * @return 
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				     * @throws Exception 
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				     */ 
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				    public static String decrypt(String encryptStr, String decryptKey) { 
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				        try { 
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				            KeyGenerator kgen = KeyGenerator.getInstance("AES"); 
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				            kgen.init(128); 
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				            Cipher cipher = Cipher.getInstance(ALGORITHMSTR); 
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				            cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES")); 
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				            // 采用base64算法进行转码,避免出现中文乱码 
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				            byte[] encryptBytes = Base64.decodeBase64(encryptStr); 
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				            byte[] decryptBytes = cipher.doFinal(encryptBytes); 
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				            return new String(decryptBytes); 
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				        }catch (Exception e){ 
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				            e.printStackTrace(); 
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				            return encryptStr; 
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				        } 
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				    } 
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				    public static String encrypt(String content){ 
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				        if(content == null){ 
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				            return content; 
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				        } 
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				        return encrypt(content, KEY); 
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				    } 
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				    public static String decrypt(String encryptStr){ 
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				        if(StringUtils.isEmpty(encryptStr)){ 
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				            return encryptStr; 
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				        } 
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				        return decrypt(encryptStr, KEY); 
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				    } 
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				} 
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