fix page bug

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

@@ -20,6 +20,7 @@ import com.tanpu.community.dao.entity.community.*;
 import com.tanpu.community.feign.fatools.FeignClientForFatools;
 import com.tanpu.community.service.*;
 import com.tanpu.community.service.base.ESService;
+import com.tanpu.community.util.BizUtils;
 import com.tanpu.community.util.ConvertUtil;
 import com.tanpu.community.util.RankUtils;
 import com.tanpu.community.util.TencentcloudUtils;
@@ -215,14 +216,15 @@ public class ThemeManager {
             if (StringUtils.isEmpty(req.getTopicId())) {
                 throw new BizException("TopicId为空");
             }
-
             themes = themeService.queryNewestByTopic(req.topicId, req.page.pageNumber, realSize);
         }
 
         // filter用户自己的
         themes = themes.stream().filter(t -> {
             return !userId.equals(t.getAuthorId()) && !req.excludeIds.contains(t.getThemeId());
-        }).collect(Collectors.toList()).subList(0, req.page.pageSize);
+        }).collect(Collectors.toList());
+        // todo pageNo pageSize
+        themes = BizUtils.subList(themes, 0, req.page.pageSize);
 
         ThemeListResp resp = new ThemeListResp();
         resp.excludeIds = req.excludeIds;