增加判空操作

common-module/src/main/java/com/tzld/piaoquan/growth/common/service/Impl/MessageAttachmentServiceImpl.java

@@ -72,7 +72,7 @@ public class MessageAttachmentServiceImpl implements MessageAttachmentService {
                 if (messageAttachment.getMediaId() != null) {
                     criteria.andMediaIdEqualTo(messageAttachment.getMediaId());
                 }
-                if (messageAttachment.getMediaId() != null) {
+                if (messageAttachment.getPicUrl() != null) {
                     criteria.andPicUrlEqualTo(messageAttachment.getPicUrl());
                 }
             }