首页推荐返回空列表 fix

community-service/src/main/java/com/tanpu/community/manager/ThemeManager.java

@@ -413,9 +413,13 @@ public class ThemeManager {
             List<String> excludes = ListUtils.union(excludeIds, visitedIds);
             List<String> recmdIds = recommendService.getRecommendThemes(pageStart, pageSize, userId, excludes);
 
-            themes = themeService.queryByThemeIds(recmdIds);
+            // 加载第一页时，为防止首页显示空列表,从推荐池中再捞出已看过帖子
+            if (req.page.pageNumber == 1 && visitedIds.size() < pageSize) {
+                recmdIds.addAll(recommendService.getRecommendThemes(pageStart, pageSize, userId, recmdIds));
+            }
 
-            //排序并去重
+            themes = themeService.queryByThemeIds(recmdIds);
+            // 排序并去重
             themes = RankUtils.sortThemeEntityByIds(themes, recmdIds).stream().limit(pageSize).collect(Collectors.toList());
 
 
@@ -683,7 +687,7 @@ public class ThemeManager {
     public void convertFromNewsFeed(SynchroThemeReq req2) {
         String userId = req2.getUserId();
         CreateThemeReq req = new CreateThemeReq();
-        BeanUtils.copyProperties(req2,req);
+        BeanUtils.copyProperties(req2, req);
         req.setTopicId("");
         req.setTitle("");