...

examcloud-core-basic-api-provider/src/main/java/cn/com/qmth/examcloud/core/basic/api/controller/ResourceController.java

@@ -113,6 +113,11 @@ public class ResourceController extends ControllerSupport {
 	public void addResource(@RequestParam @NotNull(message = "RootOrgId不能为空！") Long rootOrgId,
 			@RequestParam @NotNull(message = "parentId不能为空！") Long parentId,
 			@RequestPart @NotNull(message = "上传文件不能为空！") MultipartFile dataFile) {
+
+		if (-1 == parentId) {
+			parentId = null;
+		}
+
 		if (!isSuperAdmin()) {
 			User accessUser = getAccessUser();
 			if (!rootOrgId.equals(accessUser.getRootOrgId())) {