修改实体位置

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/FileHelper.java

@@ -66,6 +66,7 @@ public class FileHelper {
      * @return
      */
     public static int getMediaTypeByMime(String mimeType) {
+        mimeType = StringHelper.getFirst(mimeType, StringHelper.EMPTY);
         if (mimeType.startsWith("video/")) {
             return FILE_TYPE_VIDEO;
         } else if (mimeType.startsWith("audio/")) {