9 changed files with 248 additions and 13 deletions
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package com.bnyer.common.core.utils; |
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import org.apache.commons.codec.digest.DigestUtils; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.security.MessageDigest; |
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import java.security.NoSuchAlgorithmException; |
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/** |
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* @author :WXC |
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* @Date :2023/05/12 |
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* @description : |
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*/ |
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public class MD5Util { |
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/** |
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* 默认的密码字符串组合，用来将字节转换成 16 进制表示的字符,apache校验下载的文件的正确性用的就是默认的这个组合 |
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*/ |
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protected static char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', |
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'7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; |
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protected static MessageDigest messagedigest = null; |
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static { |
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try { |
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messagedigest = MessageDigest.getInstance("MD5"); |
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} catch (NoSuchAlgorithmException nsaex) { |
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System.err.println(MD5Util.class.getName() |
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+ "初始化失败，MessageDigest不支持MD5Util。"); |
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nsaex.printStackTrace(); |
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} |
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} |
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/** |
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* 生成字符串的md5校验值 |
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* |
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* @param s |
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* @return |
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*/ |
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public static String getMD5String(String s) { |
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return getMD5String(s.getBytes()); |
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} |
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public static String getStaffMD5String(String staffId,String s) { |
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return getMD5String((staffId+s).getBytes()); |
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} |
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public static String getUserMD5String(String userId,String s) { |
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return getMD5String(s.getBytes()); |
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} |
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/** |
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* 判断字符串的md5校验码是否与一个已知的md5码相匹配 |
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* |
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* @param password 要校验的字符串 |
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* @param md5PwdStr 已知的md5校验码 |
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* @return |
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*/ |
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public static boolean checkPassword(String password, String md5PwdStr) { |
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String s = getMD5String(password); |
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return s.equals(md5PwdStr); |
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} |
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/** |
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* 生成文件的md5校验值 |
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* |
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* @param file |
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* @return |
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* @throws IOException |
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*/ |
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public static String getFileMD5String(File file) throws IOException { |
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InputStream fis; |
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fis = new FileInputStream(file); |
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byte[] buffer = new byte[1024]; |
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int numRead = 0; |
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while ((numRead = fis.read(buffer)) > 0) { |
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messagedigest.update(buffer, 0, numRead); |
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} |
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fis.close(); |
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return bufferToHex(messagedigest.digest()); |
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} |
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public static String getFileMD5String(InputStream fis) throws IOException { |
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byte[] buffer = new byte[1024]; |
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int numRead = 0; |
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while ((numRead = fis.read(buffer)) > 0) { |
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messagedigest.update(buffer, 0, numRead); |
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} |
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fis.close(); |
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return bufferToHex(messagedigest.digest()); |
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} |
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public static String getMD5String(byte[] bytes) { |
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messagedigest.update(bytes); |
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return bufferToHex(messagedigest.digest()); |
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} |
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private static String bufferToHex(byte bytes[]) { |
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return bufferToHex(bytes, 0, bytes.length); |
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} |
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private static String bufferToHex(byte bytes[], int m, int n) { |
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StringBuffer stringbuffer = new StringBuffer(2 * n); |
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int k = m + n; |
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for (int l = m; l < k; l++) { |
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appendHexPair(bytes[l], stringbuffer); |
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} |
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return stringbuffer.toString(); |
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} |
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private static void appendHexPair(byte bt, StringBuffer stringbuffer) { |
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char c0 = hexDigits[(bt & 0xf0) >> 4];// 取字节中高 4 位的数字转换, >>> 为逻辑右移，将符号位一起右移,此处未发现两种符号有何不同
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char c1 = hexDigits[bt & 0xf];// 取字节中低 4 位的数字转换
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stringbuffer.append(c0); |
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stringbuffer.append(c1); |
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} |
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/** |
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* MD5方法 |
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* |
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* @param text 明文 |
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* @param key 密钥 |
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* @return 密文 |
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* @throws Exception |
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*/ |
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public static String md5(String text, String key) throws Exception { |
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//加密后的字符串
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System.out.println("text + key "+text + key); |
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String encodeStr= DigestUtils.md5Hex(text + key); |
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System.out.println("MD5加密后的字符串为:encodeStr="+encodeStr); |
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return encodeStr; |
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} |
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public static void main(String[] args) throws IOException { |
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System.out.println(MD5Util.getMD5String("RVWU202305121022211042vip")); |
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} |
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} |
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@ -0,0 +1,20 @@ |
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package com.bnyer.pay.enums; |
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import lombok.AllArgsConstructor; |
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import lombok.Getter; |
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import lombok.NoArgsConstructor; |
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/** |
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* @author :WXC |
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* @Date :2023/05/12 |
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* @description : |
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*/ |
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@Getter |
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@NoArgsConstructor |
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@AllArgsConstructor |
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public enum EnumVerificationKey { |
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VIP("vip", "VipInOrder20230512Key"), |
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; |
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private String key; |
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private String value; |
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} |
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@ -0,0 +1,39 @@ |
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package com.bnyer.pay.utils; |
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import com.bnyer.common.core.utils.MD5Util; |
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import com.bnyer.pay.bean.dto.RefundDto; |
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import com.bnyer.pay.enums.EnumVerificationKey; |
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/** |
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* @author :WXC |
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* @Date :2023/05/12 |
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* @description : 退款工具类 |
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*/ |
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public class PaymentRefundUtil { |
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/** |
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* 获取签名 |
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* @param dto |
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* @return |
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*/ |
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public static String getSign(RefundDto dto) { |
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return MD5Util.getMD5String(dto.getPayId() + EnumVerificationKey.VIP.getValue()); |
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} |
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/** |
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* 校验签名 |
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* @param dto |
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* @return |
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*/ |
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public static boolean checkSign(RefundDto dto) { |
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return MD5Util.getMD5String(dto.getPayId() + EnumVerificationKey.VIP.getValue()).equals(dto.getSign()); |
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} |
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public static void main(String[] args) { |
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String sign = MD5Util.getMD5String("RVWU202305121022211042" + EnumVerificationKey.VIP.getValue()); |
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System.out.println(sign); |
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System.out.println(MD5Util.getMD5String("RVWU202305121022211042" + EnumVerificationKey.VIP.getValue()).equals(sign)); |
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} |
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} |
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