增加取消收藏接口

doc-biz/src/main/java/com/doc/biz/controller/DocFavoriteController.java

@@ -102,7 +102,7 @@ public class DocFavoriteController extends BaseController {
     @PostMapping
     public AjaxResult add(@RequestBody DocFavorite docFavorite) {
         if (docFavorite.getLabelId() == null) {
-            docFavorite.setLabelId(0L);
+            docFavorite.setLabelId(-1L);
         }
         docFavorite.setOwner(SecurityUtils.getUserId());
         return toAjax(docFavoriteService.insertDocFavorite(docFavorite));