Merge pull request #732 in DESIGN/design from ~KERRY/design_10.0:release/10.0 to release/10.0

* commit 'de464beffa3fa9b4ae882d225bc1e804d9e1ebc0':
  REPORT-14092 [FindBugs问题修复]

designer-base/src/main/java/com/fr/design/actions/file/WebPreviewUtils.java

@@ -9,6 +9,7 @@ import com.fr.design.utils.DesignUtils;
 import com.fr.file.FILE;
 import com.fr.file.FileNodeFILE;
 import com.fr.general.GeneralUtils;
+import com.fr.general.web.ParameterConstants;
 import com.fr.stable.project.ProjectConstants;
 import com.fr.stable.web.AbstractWebletCreator;
 
@@ -26,7 +27,11 @@ public final class WebPreviewUtils {
     @SuppressWarnings("unchecked")
     public static void preview(JTemplate<?, ?> jt, PreviewProvider provider) {
         String baseRoute = jt.route();
-        actionPerformed(jt, baseRoute, provider == null ? Collections.EMPTY_MAP : provider.parametersForPreview(), provider.getActionType());
+        if (provider == null) {
+            actionPerformed(jt, baseRoute, Collections.EMPTY_MAP, ParameterConstants.VIEWLET);
+        } else {
+            actionPerformed(jt, baseRoute, provider.parametersForPreview(), provider.getActionType());
+        }
     }
 
     private static void actionPerformed(JTemplate<?, ?> jt, String baseRoute, Map<String, Object> map, String actionType) {