发布帖子

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[TOC]

数据库表

image-20200907224007422

image-20200907225126398

Controller

发布帖子

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public String addDiscussPost(String title, String content) {
        User user = hostHolder.getUser();
        if (user == null) {
            return CommunityUtil.getJSONString(403, "你还没有登录哦!");
        }

        DiscussPost post = new DiscussPost();
        post.setUserId(user.getId());
        post.setTitle(title);
        post.setContent(content);
        post.setCreateTime(new Date());
        discussPostService.addDiscussPost(post);

帖子详情

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@RequestMapping(path = "/detail/{discussPostId}", method = RequestMethod.GET)
public String getDiscussPost(@PathVariable("discussPostId") int discussPostId, Model model, Page page) {
    // 帖子
    DiscussPost post = discussPostService.findDiscussPostById(discussPostId);
    model.addAttribute("post", post);
    // 作者
    User user = userService.findUserById(post.getUserId());
    model.addAttribute("user", user);
    // 点赞数量
    long likeCount = likeService.findEntityLikeCount(ENTITY_TYPE_POST, discussPostId);
    model.addAttribute("likeCount", likeCount);
    // 点赞状态
    int likeStatus = hostHolder.getUser() == null ? 0 :
            likeService.findEntityLikeStatus(hostHolder.getUser().getId(), ENTITY_TYPE_POST, discussPostId);
    model.addAttribute("likeStatus", likeStatus);

    // 评论分页信息
    page.setLimit(5);
    page.setPath("/discuss/detail/" + discussPostId);
    page.setRows(post.getCommentCount());

    // 评论: 给帖子的评论
    // 回复: 给评论的评论
    // 评论列表
    List<Comment> commentList = commentService.findCommentsByEntity(
            ENTITY_TYPE_POST, post.getId(), page.getOffset(), page.getLimit());
    // 评论VO列表
    List<Map<String, Object>> commentVoList = new ArrayList<>();
    if (commentList != null) {
        for (Comment comment : commentList) {
            // 评论VO
            Map<String, Object> commentVo = new HashMap<>();
            // 评论
            commentVo.put("comment", comment);
            // 作者
            commentVo.put("user", userService.findUserById(comment.getUserId()));
            // 点赞数量
            likeCount = likeService.findEntityLikeCount(ENTITY_TYPE_COMMENT, comment.getId());
            commentVo.put("likeCount", likeCount);
            // 点赞状态
            likeStatus = hostHolder.getUser() == null ? 0 :
                    likeService.findEntityLikeStatus(hostHolder.getUser().getId(), ENTITY_TYPE_COMMENT, comment.getId());
            commentVo.put("likeStatus", likeStatus);

            // 回复列表
            List<Comment> replyList = commentService.findCommentsByEntity(
                    ENTITY_TYPE_COMMENT, comment.getId(), 0, Integer.MAX_VALUE);
            // 回复VO列表
            List<Map<String, Object>> replyVoList = new ArrayList<>();
            if (replyList != null) {
                for (Comment reply : replyList) {
                    Map<String, Object> replyVo = new HashMap<>();
                    // 回复
                    replyVo.put("reply", reply);
                    // 作者
                    replyVo.put("user", userService.findUserById(reply.getUserId()));
                    // 回复目标
                    User target = reply.getTargetId() == 0 ? null : userService.findUserById(reply.getTargetId());
                    replyVo.put("target", target);
                    // 点赞数量
                    likeCount = likeService.findEntityLikeCount(ENTITY_TYPE_COMMENT, reply.getId());
                    replyVo.put("likeCount", likeCount);
                    // 点赞状态
                    likeStatus = hostHolder.getUser() == null ? 0 :
                            likeService.findEntityLikeStatus(hostHolder.getUser().getId(), ENTITY_TYPE_COMMENT, reply.getId());
                    replyVo.put("likeStatus", likeStatus);

                    replyVoList.add(replyVo);
                }
            }
            commentVo.put("replys", replyVoList);

            // 回复数量
            int replyCount = commentService.findCommentCount(ENTITY_TYPE_COMMENT, comment.getId());
            commentVo.put("replyCount", replyCount);

            commentVoList.add(commentVo);
        }
    }

    model.addAttribute("comments", commentVoList);

    return "/site/discuss-detail";
}

添加评论

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comment.setUserId(hostHolder.getUser().getId());
comment.setStatus(0);
comment.setCreateTime(new Date());
commentService.addComment(comment);

Service

Mapper