修改 design single功能

src/main/java/com/ai/da/common/utils/MD5Utils.java

@@ -74,6 +74,16 @@ public class MD5Utils {
         return md5;
     }
 
+    public static String encryptFile(InputStream inputStream) {
+        String md5 = null;
+        try {
+            md5 = DigestUtils.md5DigestAsHex(inputStream);
+        } catch (IOException ioException) {
+            log.error("文件InputStream md5加密异常ioException##{}", ExceptionUtil.getThrowableList(ioException));
+        }
+        return md5;
+    }
+
     public static void main(String[] args) throws FileNotFoundException, IOException {
         File file1 = new File("/Users/yanglei/Documents/阳磊日报2019-04-23.numbers");
         File file2 = new File("/Users/yanglei/Documents/7777.numbers");