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fix: 性能优化，首页下拉更新，实测6秒左右，稍慢 #1053

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Tim
2026-01-16 16:45:07 +08:00
parent 09f1435e33
commit ef39b5fedf
7 changed files with 193 additions and 32 deletions
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51
backend/src/main/java/com/openisle/mapper/PostMapper.java
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@@ -48,6 +48,38 @@ public class PostMapper {
return dto;
}
public List<PostSummaryDto> toListDtos(List<Post> posts) {
if (posts == null || posts.isEmpty()) {
return List.of();
}
Map<Long, List<User>> participantsMap = commentService.getParticipantsForPosts(posts, 5);
return posts
.stream()
.map(post -> {
PostSummaryDto dto = new PostSummaryDto();
applyListFields(post, dto);
List<User> participants = participantsMap.get(post.getId());
if (participants != null) {
dto.setParticipants(
participants.stream().map(userMapper::toAuthorDto).collect(Collectors.toList())
);
} else {
dto.setParticipants(List.of());
}
dto.setReactions(List.of());
return dto;
})
.collect(Collectors.toList());
}
public PostSummaryDto toListDto(Post post) {
PostSummaryDto dto = new PostSummaryDto();
applyListFields(post, dto);
dto.setParticipants(List.of());
dto.setReactions(List.of());
return dto;
}
public PostDetailDto toDetailDto(Post post, String viewer) {
PostDetailDto dto = new PostDetailDto();
applyCommon(post, dto);
@@ -61,6 +93,25 @@ public class PostMapper {
return dto;
}
private void applyListFields(Post post, PostSummaryDto dto) {
dto.setId(post.getId());
dto.setTitle(post.getTitle());
dto.setContent(post.getContent());
dto.setCreatedAt(post.getCreatedAt());
dto.setAuthor(userMapper.toAuthorDto(post.getAuthor()));
dto.setCategory(categoryMapper.toDto(post.getCategory()));
dto.setTags(post.getTags().stream().map(tagMapper::toDto).collect(Collectors.toList()));
dto.setViews(post.getViews());
dto.setCommentCount(post.getCommentCount());
dto.setStatus(post.getStatus());
dto.setPinnedAt(post.getPinnedAt());
dto.setLastReplyAt(post.getLastReplyAt());
dto.setRssExcluded(post.getRssExcluded() == null || post.getRssExcluded());
dto.setClosed(post.isClosed());
dto.setVisibleScope(post.getVisibleScope());
dto.setType(post.getType());
}
private void applyCommon(Post post, PostSummaryDto dto) {
dto.setId(post.getId());
dto.setTitle(post.getTitle());