Merge branch 'master' of http://172.16.90.201:3000/SharedLibrary-SystemCode/UtilsDemo

UtilsDemo-SecureEncryption/src/main/java/com/example/controller/Des3Controller.java

@@ -0,0 +1,60 @@
+package com.example.controller;
+
+import com.example.utils.EncryptUtil;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/Des3")
+public class Des3Controller {
+    EncryptUtil encryptUtil = EncryptUtil.getInstance();
+    //DES加密
+    @GetMapping(value = "DESencode")
+    public String DESencode( String data, String key) throws Exception {
+        return encryptUtil.DESencode(data, key);
+    }
+
+    //DES解密
+    @GetMapping(value = "DESdecode")
+    public String DESdecode( String data, String key) throws Exception {
+
+        return encryptUtil.DESdecode(data, key);
+    }
+
+    //AESencode加密
+    @GetMapping(value = "AESencode")
+    public String AESencode( String data, String key) throws Exception {
+        return encryptUtil.AESencode(data, key);
+    }
+
+    //AESencode解密
+    @GetMapping(value = "AESdecode")
+    public String AESdecode( String data, String key) throws Exception {
+        return encryptUtil.AESdecode(data, key);
+    }
+
+    //XORencode加密
+    @GetMapping(value = "XORencode")
+    public String XORencode( String data, String key) throws Exception {
+        return encryptUtil.XORencode(data, key);
+    }
+
+    //XORdecode解密
+    @GetMapping(value = "XORdecode")
+    public String XORdecode( String data, String key) throws Exception {
+        return encryptUtil.XORdecode(data, key);
+    }
+
+    //Base64Encode加密
+    @GetMapping(value = "Base64Encode")
+    public String Base64Encode( String data, String key) throws Exception {
+        return encryptUtil.Base64Encode(data);
+    }
+
+    //Base64Decode解密
+    @GetMapping(value = "Base64Decode")
+    public String Base64Decode( String data) throws Exception {
+        return encryptUtil.Base64Decode(data);
+    }
+}

UtilsDemo-SecureEncryption/src/main/java/com/example/utils/Des3Util.java

@@ -1,125 +0,0 @@
-package com.example.utils;
-
-/**
- * @category Des3
- *
- * @author DSJ
- * @version 1.0
- * @since 1.0
- */
-import javax.crypto.Cipher;
-import javax.crypto.SecretKeyFactory;
-import javax.crypto.spec.DESedeKeySpec;
-import javax.crypto.spec.IvParameterSpec;
-import java.security.Key;
-
-public class Des3Util {
-    private final static byte[] SKEYIV = { 'c', '@', 0, '%', 'I', '$', '&', 'm' };
-    /**
-     * ECB加密,不要IV
-     * @param key 密钥
-     * @param data 明文
-     * @return Base64编码的密文
-     * @throws Exception
-     */
-    public static byte[] des3EncodeECB(byte[] key, byte[] data)
-            throws Exception {
-        Key deskey = null;
-        DESedeKeySpec spec = new DESedeKeySpec(key);
-        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
-        deskey = keyfactory.generateSecret(spec);
-        Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding");
-        cipher.init(Cipher.ENCRYPT_MODE, deskey);
-        byte[] bOut = cipher.doFinal(data);
-        return bOut;
-    }
-
-    /**
-     * ECB解密,不要IV
-     * @param key 密钥
-     * @param data Base64编码的密文
-     * @return 明文
-     * @throws Exception
-     */
-    public static byte[] ees3DecodeECB(byte[] key, byte[] data)
-            throws Exception {
-        Key deskey = null;
-        DESedeKeySpec spec = new DESedeKeySpec(key);
-        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
-        deskey = keyfactory.generateSecret(spec);
-        Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding");
-        cipher.init(Cipher.DECRYPT_MODE, deskey);
-        byte[] bOut = cipher.doFinal(data);
-        return bOut;
-    }
-    /**
-     * CBC加密
-     * @param key 密钥
-     * @param keyiv IV
-     * @param data 明文
-     * @return Base64编码的密文
-     * @throws Exception
-     */
-    public static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data)
-            throws Exception {
-        Key deskey = null;
-        DESedeKeySpec spec = new DESedeKeySpec(key);
-        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
-        deskey = keyfactory.generateSecret(spec);
-        Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");
-        IvParameterSpec ips = new IvParameterSpec(keyiv);
-        cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);
-        byte[] bOut = cipher.doFinal(data);
-        return bOut;
-    }
-    /**
-     * CBC解密
-     * @param key 密钥
-     * @param keyiv IV
-     * @param data Base64编码的密文
-     * @return 明文
-     * @throws Exception
-     */
-    public static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data)
-            throws Exception {
-        Key deskey = null;
-        DESedeKeySpec spec = new DESedeKeySpec(key);
-        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
-        deskey = keyfactory.generateSecret(spec);
-        Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");
-        IvParameterSpec ips = new IvParameterSpec(keyiv);
-        cipher.init(Cipher.DECRYPT_MODE, deskey, ips);
-        byte[] bOut = cipher.doFinal(data);
-        return bOut;
-    }
-
-
-
-    /**
-     *  CBC 加密
-     * @param key
-     * @param data
-     * @return
-     * @throws Exception
-     *
-     */
-    public static String des3EncodeCBCString(String key, String data) throws Exception{
-        byte[] bBuf =  des3EncodeCBC(key.getBytes("UTF-8"), SKEYIV, data.getBytes("UTF-8") );
-        return Hex.parseByte2HexStr(bBuf);
-    }
-
-
-    /**
-     *  CBC 解密
-     * @param key
-     * @param data
-     * @return
-     * @throws Exception
-     *
-     */
-    public static String des3DecodeCBCString(String key, String data) throws Exception{
-        byte[] bdata = Hex.parseHexStr2Byte(data);
-        byte[] bBuf =  des3DecodeCBC(key.getBytes("UTF-8"), SKEYIV, bdata );
-        return new String(bBuf, "UTF-8"); //Hex.encodeHexStr(bBuf);
-    }
-}

UtilsDemo-SecureEncryption/src/main/java/com/example/utils/DesUtil.java

@@ -1,130 +0,0 @@
-package com.example.utils;
-
-import javax.crypto.Cipher;
-import javax.crypto.SecretKey;
-import javax.crypto.SecretKeyFactory;
-import javax.crypto.spec.DESKeySpec;
-import javax.crypto.spec.IvParameterSpec;
-import java.io.IOException;
-
-public class DesUtil {
-    public static final String IV = "@#c,m.t/"; //八位
-
-    /**
-     * Description 根据键值进行加密
-     * @param data
-     * @param key  加密键byte数组
-     * @return
-     * @throws Exception
-     */
-    public static String encrypt(String data, String key, String iv) throws Exception {
-        byte[] bt = encrypt(data.getBytes("utf-8"), key.getBytes("UTF-8"), iv.getBytes("UTF-8"));
-        //String strs = new BASE64Encoder().encode(bt);
-        String strs = parseByte2HexStr(bt) ;
-        return strs;
-    }
-
-    /**
-     * Description 根据键值进行解密
-     * @param data
-     * @param key  加密键byte数组
-     * @return
-     * @throws IOException
-     * @throws Exception
-     */
-    public static String decrypt(String data, String key, String iv) throws IOException,
-            Exception {
-        if (data == null)
-            return null;
-        byte[] buf = parseHexStr2Byte(data) ;
-        byte[] bt = decrypt(buf,key.getBytes("UTF-8"), iv.getBytes("UTF-8"));
-        return new String(bt,"UTF-8");
-    }
-
-    /**
-     * Description 根据键值进行加密
-     * @param data
-     * @param key  加密键byte数组
-     * @return
-     * @throws Exception
-     */
-    private static byte[] encrypt(byte[] data, byte[] key, byte[] iv) throws Exception {
-        DESKeySpec dks = new DESKeySpec(key);
-
-        // 一个SecretKey对象
-        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
-        SecretKey secretKey = keyFactory.generateSecret(dks);
-        // Cipher对象实际完成加密操作
-        Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
-        // 用密匙初始化Cipher对象
-        IvParameterSpec param = new IvParameterSpec(iv);
-        cipher.init(Cipher.ENCRYPT_MODE, secretKey, param);
-
-        // 执行加密操作
-        byte encryptedData[] = cipher.doFinal(data);
-
-        return encryptedData;
-    }
-
-
-    /**
-     * Description 根据键值进行解密
-     * @param data
-     * @param key  加密键byte数组
-     * @return
-     * @throws Exception
-     */
-    private static byte[] decrypt(byte[] data, byte[] key, byte[] iv) throws Exception {
-        DESKeySpec dks = new DESKeySpec(key);
-
-        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
-        SecretKey secretKey = keyFactory.generateSecret(dks);
-
-        Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
-        // 用密匙初始化Cipher对象
-        IvParameterSpec param = new IvParameterSpec(iv);
-        cipher.init(Cipher.DECRYPT_MODE, secretKey, param);
-
-        // 正式执行解密操作
-        byte decryptedData[] = cipher.doFinal(data);
-
-        return decryptedData;
-    }
-
-
-    /**
-     *
-     * 将16进制转换为二进制
-     * @param hexStr
-     * @return
-     */
-    public static byte[] parseHexStr2Byte(String hexStr) {
-        if (hexStr.length() < 1)
-            return null;
-        byte[] result = new byte[hexStr.length()/2];
-        for (int i = 0;i< hexStr.length()/2; i++) {
-            int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16);
-            int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16);
-            result[i] = (byte) (high * 16 + low);
-        }
-        return result;
-    }
-
-    /**
-     *
-     * 将二进制转换成16进制
-     * @param buf
-     * @return
-     */
-    public static String parseByte2HexStr(byte buf[]) {
-        StringBuffer sb = new StringBuffer();
-        for (int i = 0; i < buf.length; i++) {
-            String hex = Integer.toHexString(buf[i] & 0xFF);
-            if (hex.length() == 1) {
-                hex = '0' + hex;
-            }
-            sb.append(hex.toUpperCase());
-        }
-        return sb.toString();
-    }
-}

UtilsDemo-SecureEncryption/src/main/java/com/example/utils/Encodes.java

@@ -1,80 +0,0 @@
-package com.example.utils;
-
-import org.apache.tomcat.util.codec.binary.Base64;
-
-import java.io.UnsupportedEncodingException;
-
-public class Encodes {
-    private static final String DEFAULT_URL_ENCODING = "UTF-8";
-    private static final char[] BASE62 = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".toCharArray();
-
-    /**
-     * Hex编码.
-     */
-    public static String encodeHex(byte[] input) {
-        return new String(Hex.encodeHex(input));
-    }
-
-    /**
-     * Hex解码.
-     */
-    public static byte[] decodeHex(String input) throws Exception {
-            return Hex.decodeHex(input.toCharArray());
-    }
-
-    /**
-     * Base64编码.
-     */
-    public static String encodeBase64(byte[] input) {
-        return new String(Base64.encodeBase64(input));
-    }
-
-    /**
-     * Base64编码.
-     */
-    public static String encodeBase64(String input) {
-        try {
-            return new String(Base64.encodeBase64(input.getBytes(DEFAULT_URL_ENCODING)));
-        } catch (UnsupportedEncodingException e) {
-            return "";
-        }
-    }
-
-    /**
-     * Base64编码, URL安全(将Base64中的URL非法字符'+'和'/'转为'-'和'_', 见RFC3548).
-     */
-    public static String encodeUrlSafeBase64(byte[] input) {
-        return Base64.encodeBase64URLSafeString(input);
-    }
-
-
-    /**
-     * Base64解码.
-     */
-    public static byte[] decodeBase64(String input) {
-        return Base64.decodeBase64(input.getBytes());
-    }
-
-    /**
-     * Base64解码.
-     */
-    public static String decodeBase64String(String input) {
-        try {
-            return new String(Base64.decodeBase64(input.getBytes()),
-                    DEFAULT_URL_ENCODING);
-        } catch (UnsupportedEncodingException e) {
-            return "";
-        }
-    }
-
-    /**
-     * Base62编码。
-     */
-    public static String encodeBase62(byte[] input) {
-        char[] chars = new char[input.length];
-        for (int i = 0; i < input.length; i++) {
-            chars[i] = BASE62[((input[i] & 0xFF) % BASE62.length)];
-        }
-        return new String(chars);
-    }
-}

UtilsDemo-SecureEncryption/src/main/java/com/example/utils/EncryptUtil.java

@@ -0,0 +1,290 @@
+package com.example.utils;
+
+import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;
+
+import javax.crypto.Cipher;
+import javax.crypto.KeyGenerator;
+import javax.crypto.Mac;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.MessageDigest;
+import java.security.SecureRandom;
+
+
+public class EncryptUtil {
+    public static final String MD5 = "MD5";
+    public static final String SHA1 = "SHA1";
+    public static final String HmacMD5 = "HmacMD5";
+    public static final String HmacSHA1 = "HmacSHA1";
+    public static final String DES = "DES";
+    public static final String AES = "AES";
+
+    /**编码格式；默认使用uft-8*/
+    public String charset = "utf-8";
+    /**DES*/
+    public int keysizeDES = 0;
+    /**AES*/
+    public int keysizeAES = 128;
+
+    public static EncryptUtil me;
+
+    private EncryptUtil(){
+        //单例
+    }
+    //双重锁
+    public static EncryptUtil getInstance(){
+        if (me==null) {
+            synchronized (EncryptUtil.class) {
+                if(me == null){
+                    me = new EncryptUtil();
+                }
+            }
+        }
+        return me;
+    }
+
+    /**
+     * 使用MessageDigest进行单向加密（无密码）
+     * @param res 被加密的文本
+     * @param algorithm 加密算法名称
+     * @return
+     */
+    private String messageDigest(String res,String algorithm){
+        try {
+            MessageDigest md = MessageDigest.getInstance(algorithm);
+            byte[] resBytes = charset==null?res.getBytes():res.getBytes(charset);
+            return base64(md.digest(resBytes));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    /**
+     * 使用KeyGenerator进行单向/双向加密（可设密码）
+     * @param res 被加密的原文
+     * @param algorithm  加密使用的算法名称
+     * @param key 加密使用的秘钥
+     * @return
+     */
+    private String keyGeneratorMac(String res,String algorithm,String key){
+        try {
+            SecretKey sk = null;
+            if (key==null) {
+                KeyGenerator kg = KeyGenerator.getInstance(algorithm);
+                sk = kg.generateKey();
+            }else {
+                byte[] keyBytes = charset==null?key.getBytes():key.getBytes(charset);
+                sk = new SecretKeySpec(keyBytes, algorithm);
+            }
+            Mac mac = Mac.getInstance(algorithm);
+            mac.init(sk);
+            byte[] result = mac.doFinal(res.getBytes());
+            return base64(result);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    /**
+     * 使用KeyGenerator双向加密，DES/AES，注意这里转化为字符串的时候是将2进制转为16进制格式的字符串，不是直接转，因为会出错
+     * @param res 加密的原文
+     * @param algorithm 加密使用的算法名称
+     * @param key  加密的秘钥
+     * @param keysize
+     * @param isEncode
+     * @return
+     */
+    private String keyGeneratorES(String res,String algorithm,String key,int keysize,boolean isEncode){
+        try {
+            KeyGenerator kg = KeyGenerator.getInstance(algorithm);
+            if (keysize == 0) {
+                byte[] keyBytes = charset==null?key.getBytes():key.getBytes(charset);
+                kg.init(new SecureRandom(keyBytes));
+            }else if (key==null) {
+                kg.init(keysize);
+            }else {
+                byte[] keyBytes = charset==null?key.getBytes():key.getBytes(charset);
+                kg.init(keysize, new SecureRandom(keyBytes));
+            }
+            SecretKey sk = kg.generateKey();
+            SecretKeySpec sks = new SecretKeySpec(sk.getEncoded(), algorithm);
+            Cipher cipher = Cipher.getInstance(algorithm);
+            if (isEncode) {
+                cipher.init(Cipher.ENCRYPT_MODE, sks);
+                byte[] resBytes = charset==null?res.getBytes():res.getBytes(charset);
+                return parseByte2HexStr(cipher.doFinal(resBytes));
+            }else {
+                cipher.init(Cipher.DECRYPT_MODE, sks);
+                return new String(cipher.doFinal(parseHexStr2Byte(res)));
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    private String base64(byte[] res){
+        return Base64.encode(res);
+    }
+
+    /**将二进制转换成16进制 */
+    public static String parseByte2HexStr(byte buf[]) {
+        StringBuffer sb = new StringBuffer();
+        for (int i = 0; i < buf.length; i++) {
+            String hex = Integer.toHexString(buf[i] & 0xFF);
+            if (hex.length() == 1) {
+                hex = '0' + hex;
+            }
+            sb.append(hex.toUpperCase());
+        }
+        return sb.toString();
+    }
+    /**将16进制转换为二进制*/
+    public static byte[] parseHexStr2Byte(String hexStr) {
+        if (hexStr.length() < 1)
+            return null;
+        byte[] result = new byte[hexStr.length()/2];
+        for (int i = 0;i< hexStr.length()/2; i++) {
+            int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16);
+            int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16);
+            result[i] = (byte) (high * 16 + low);
+        }
+        return result;
+    }
+
+    /**
+     * md5加密算法进行加密（不可逆）
+     * @param res 需要加密的原文
+     * @return
+     */
+    public String MD5(String res) {
+        return messageDigest(res, MD5);
+    }
+
+    /**
+     * md5加密算法进行加密（不可逆）
+     * @param res  需要加密的原文
+     * @param key  秘钥
+     * @return
+     */
+    public String MD5(String res, String key) {
+        return keyGeneratorMac(res, HmacMD5, key);
+    }
+
+    /**
+     * 使用SHA1加密算法进行加密（不可逆）
+     * @param res 需要加密的原文
+     * @return
+     */
+    public String SHA1(String res) {
+        return messageDigest(res, SHA1);
+    }
+
+    /**
+     * 使用SHA1加密算法进行加密（不可逆）
+     * @param res 需要加密的原文
+     * @param key 秘钥
+     * @return
+     */
+    public String SHA1(String res, String key) {
+        return keyGeneratorMac(res, HmacSHA1, key);
+    }
+
+    /**
+     * 使用DES加密算法进行加密（可逆）
+     * @param res 需要加密的原文
+     * @param key 秘钥
+     * @return
+     */
+    public String DESencode(String res, String key) {
+        return keyGeneratorES(res, DES, key, keysizeDES, true);
+    }
+
+    /**
+     * 对使用DES加密算法的密文进行解密（可逆）
+     * @param res 需要解密的密文
+     * @param key 秘钥
+     * @return
+     */
+    public String DESdecode(String res, String key) {
+        return keyGeneratorES(res, DES, key, keysizeDES, false);
+    }
+
+    /**
+     * 使用AES加密算法经行加密（可逆）
+     * @param res 需要加密的密文
+     * @param key 秘钥
+     * @return
+     */
+    public String AESencode(String res, String key) {
+        return keyGeneratorES(res, AES, key, keysizeAES, true);
+    }
+
+    /**
+     * 对使用AES加密算法的密文进行解密
+     * @param res 需要解密的密文
+     * @param key 秘钥
+     * @return
+     */
+    public String AESdecode(String res, String key) {
+        return keyGeneratorES(res, AES, key, keysizeAES, false);
+    }
+
+    /**
+     * 使用异或进行加密
+     * @param res 需要加密的密文
+     * @param key 秘钥
+     * @return
+     */
+    public String XORencode(String res, String key) {
+        byte[] bs = res.getBytes();
+        for (int i = 0; i < bs.length; i++) {
+            bs[i] = (byte) ((bs[i]) ^ key.hashCode());
+        }
+        return parseByte2HexStr(bs);
+    }
+
+    /**
+     * 使用异或进行解密
+     * @param res 需要解密的密文
+     * @param key 秘钥
+     * @return
+     */
+    public String XORdecode(String res, String key) {
+        byte[] bs = parseHexStr2Byte(res);
+        for (int i = 0; i < bs.length; i++) {
+            bs[i] = (byte) ((bs[i]) ^ key.hashCode());
+        }
+        return new String(bs);
+    }
+
+    /**
+     * 直接使用异或（第一调用加密，第二次调用解密）
+     * @param res 密文
+     * @param key 秘钥
+     * @return
+     */
+    public int XOR(int res, String key) {
+        return res ^ key.hashCode();
+    }
+
+    /**
+     * 使用Base64进行加密
+     * @param res 密文
+     * @return
+     */
+    public String Base64Encode(String res) {
+        return Base64.encode(res.getBytes());
+    }
+
+    /**
+     * 使用Base64进行解密
+     * @param res
+     * @return
+     */
+    public String Base64Decode(String res) {
+        return new String(Base64.decode(res));
+    }
+}

UtilsDemo-SecureEncryption/src/main/java/com/example/utils/Hex.java

@@ -1,203 +0,0 @@
-package com.example.utils;
-
-/**
- * @category 十六进制组件
- *
- * @author DSJ
- * @version 1.0
- * @since 1.0
- */
-public class Hex {
-    /**
-     * 用于建立十六进制字符的输出的小写字符数组
-     */
-    private static final char[] DIGITS_LOWER = {'0', '1', '2', '3', '4', '5',
-            '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
-
-    /**
-     * 用于建立十六进制字符的输出的大写字符数组
-     */
-    private static final char[] DIGITS_UPPER = {'0', '1', '2', '3', '4', '5',
-            '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-
-    /**
-     * 将字节数组转换为十六进制字符数组
-     *
-     * @param data byte[]
-     * @return 十六进制char[]
-     */
-    public static char[] encodeHex(byte[] data) {
-        return encodeHex(data, true);
-    }
-
-    /**
-     * 将字节数组转换为十六进制字符数组
-     *
-     * @param data        byte[]
-     * @param toLowerCase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
-     * @return 十六进制char[]
-     */
-    public static char[] encodeHex(byte[] data, boolean toLowerCase) {
-        return encodeHex(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
-    }
-
-    /**
-     * 将字节数组转换为十六进制字符数组
-     *
-     * @param data     byte[]
-     * @param toDigits 用于控制输出的char[]
-     * @return 十六进制char[]
-     */
-    protected static char[] encodeHex(byte[] data, char[] toDigits) {
-        int l = data.length;
-        char[] out = new char[l << 1];
-        // two characters form the hex value.
-        for (int i = 0, j = 0; i < l; i++) {
-            out[j++] = toDigits[(0xF0 & data[i]) >>> 4];
-            out[j++] = toDigits[0x0F & data[i]];
-        }
-        return out;
-    }
-
-    /**
-     * 将字节数组转换为十六进制字符串
-     *
-     * @param data byte[]
-     * @return 十六进制String
-     */
-    public static String encodeHexStr(byte[] data) {
-        return encodeHexStr(data, true);
-    }
-
-    public static String encodeHexString(byte[] data){
-        return encodeHexStr(data);
-    }
-
-    /**
-     * 将字节数组转换为十六进制字符串
-     *
-     * @param data        byte[]
-     * @param toLowerCase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
-     * @return 十六进制String
-     */
-    public static String encodeHexStr(byte[] data, boolean toLowerCase) {
-        return encodeHexStr(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
-    }
-
-    /**
-     * 将字节数组转换为十六进制字符串
-     *
-     * @param data     byte[]
-     * @param toDigits 用于控制输出的char[]
-     * @return 十六进制String
-     */
-    protected static String encodeHexStr(byte[] data, char[] toDigits) {
-        return new String(encodeHex(data, toDigits));
-    }
-
-    /**
-     * 将十六进制字符数组转换为字节数组
-     *
-     * @param data 十六进制char[]
-     * @return byte[]
-     * @throws RuntimeException 如果源十六进制字符数组是一个奇怪的长度，将抛出运行时异常
-     */
-    public static byte[] decodeHex(char[] data) {
-
-        int len = data.length;
-
-        if ((len & 0x01) != 0) {
-            throw new RuntimeException("Odd number of characters.");
-        }
-
-        byte[] out = new byte[len >> 1];
-
-        // two characters form the hex value.
-        for (int i = 0, j = 0; j < len; i++) {
-            int f = toDigit(data[j], j) << 4;
-            j++;
-            f = f | toDigit(data[j], j);
-            j++;
-            out[i] = (byte) (f & 0xFF);
-        }
-
-        return out;
-    }
-
-
-    /**将二进制转换成16进制
-     * @param buf
-     * @return
-     */
-    public static String parseByte2HexStr(byte buf[]) {
-        StringBuffer sb = new StringBuffer();
-        for (int i = 0; i < buf.length; i++) {
-            String hex = Integer.toHexString(buf[i] & 0xFF);
-            if (hex.length() == 1) {
-                hex = '0' + hex;
-            }
-            sb.append(hex.toUpperCase());
-        }
-        return sb.toString();
-    }
-
-    /**将16进制转换为二进制
-     * @param hexStr
-     * @return
-     */
-    public static byte[] parseHexStr2Byte(String hexStr) {
-        if (hexStr.length() < 1)
-            return null;
-        byte[] result = new byte[hexStr.length()/2];
-        for (int i = 0;i< hexStr.length()/2; i++) {
-            int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16);
-            int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16);
-            result[i] = (byte) (high * 16 + low);
-        }
-        return result;
-    }
-
-    /**
-     * 将十六进制字符转换成一个整数
-     *
-     * @param ch    十六进制char
-     * @param index 十六进制字符在字符数组中的位置
-     * @return 一个整数
-     * @throws RuntimeException 当ch不是一个合法的十六进制字符时，抛出运行时异常
-     */
-    protected static int toDigit(char ch, int index) {
-        int digit = Character.digit(ch, 16);
-        if (digit == -1) {
-            throw new RuntimeException("Illegal hexadecimal character " + ch
-                    + " at index " + index);
-        }
-        return digit;
-    }
-
-//    public static void main(String[] args) {
-//        String srcStr = "qwer";
-//        String encodeStr = encodeHexStr(srcStr.getBytes());
-//        String decodeStr = new String(decodeHex(encodeStr.toCharArray()));
-//        System.out.println("before encode:" + srcStr);
-//        System.out.println("after encode:" + encodeStr);
-//        System.out.println("convert:" + decodeStr);
-//
-//        test();
-//    }
-
-    public static void  test() {
-        String hello = "asdfasdf你还要asdfasdfasdfasdfl";
-        try {
-            String hexString = Hex.encodeHexString(hello.getBytes("utf-8"));
-            String hexString2 = Hex.encodeHexString(hello.getBytes("ascii"));
-            String hexString3 = Hex.encodeHexString(hello.getBytes("gbk"));
-            String hexString4 = new String(Hex.encodeHex(hello.getBytes("utf-8"), false));
-            System.out.println(hexString);
-            System.out.println(hexString2);
-            System.out.println(hexString3);
-            System.out.println(hexString4);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-}