16-帖子详情

作者：笔触狂放9 | 2024-05-15 12:56:11

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帖子详情

DiscussPostMapper
DiscussPostService
DiscussPostController
index.html
- 在帖子标题上增加访问详情页面的链接
discuss-detail.html
- 处理静态资源的访问路径
- 复用index.html的header区域
- 显示标题、作者、发布时间、帖子正文等内容

数据访问层的开发
在DiscussPostMapper.java中添加：

//帖子详情
    DiscussPost selectDiscussPostById(int id);

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在discusspost-mapper.xml中添加：

<select id="selectDiscussPostById" resultType="DiscussPost">
        select <include refid="selectFields"></include>
        from discuss_post
        where id=#{id}

    </select>
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开发业务层代码

 public DiscussPost findDiscussPostById(int id){
        return discussPostMapper.selectDiscussPostById(id);
    }
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开发表现层代码

@Autowired
    private UserService userService;
    @RequestMapping(path = "/detail/{discussPostId}",method = RequestMethod.GET)
    public String getDiscussPost(@PathVariable("discussPostId") int discussPostId, Model model){
        //帖子
        DiscussPost post = discussPostService.findDiscussPostById(discussPostId);
        model.addAttribute("post",post);

        //要处理用户的ID，根据id，查到user的其他各项信息显示出来;通过mapper的关联查询，效率高，但耦合度高；因此在这个地方处理
        //查询帖子作者
        User user=userService.findUserById(post.getUserId());
        model.addAttribute("user",user);
        return "/site/discuss-detail";
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处理前端页面index.html
处理详情页面的展示：/site/discuss-detail.html

<!doctype html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
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	<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" crossorigin="anonymous">
	<link rel="stylesheet" th:href="@{/css/global.css}" />
	<link rel="stylesheet" th:href="@{/css/discuss-detail.css}" />
	<title>牛客网-帖子详情</title>
</head>
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					<img src="http://static.nowcoder.com/images/img/icons/ico-discuss.png"/>
					<span th:utext="${post.title}">备战春招，面试刷题跟他复习，一个月全搞定！</span>
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						<div class="mt-0 text-warning" th:utext="${user.username}">寒江雪</div>
						<div class="text-muted mt-3">
							发布于 <b th:text="${#dates.format(post.createTime,'yyyy-MM-dd HH:mm:ss')}">2019-04-15 15:32:18</b>
							<ul class="d-inline float-right">
								<li class="d-inline ml-2"><a href="#" class="text-primary">赞 11</a></li>
								<li class="d-inline ml-2">|</li>
								<li class="d-inline ml-2"><a href="#replyform" class="text-primary">回帖 7</a></li>
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					金三银四的金三已经到了，你还沉浸在过年的喜悦中吗？
					如果是，那我要让你清醒一下了：目前大部分公司已经开启了内推，正式网申也将在3月份陆续开始，金三银四，春招的求职黄金时期已经来啦！！！
					再不准备，作为19应届生的你可能就找不到工作了。。。作为20届实习生的你可能就找不到实习了。。。
					现阶段时间紧，任务重，能做到短时间内快速提升的也就只有算法了，
					那么算法要怎么复习？重点在哪里？常见笔试面试算法题型和解题思路以及最优代码是怎样的？
					跟左程云老师学算法，不仅能解决以上所有问题，还能在短时间内得到最大程度的提升！！！
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						<h6><b class="square"></b> <i>30</i>条回帖</h6>
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								<span class="font-size-12 text-success">掉脑袋切切</span>
								<span class="badge badge-secondary float-right floor">1#</span>
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							<div class="mt-2">
								这开课时间是不是有点晚啊。。。
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							<div class="mt-4 text-muted font-size-12">
								<span>发布于 <b>2019-04-15 15:32:18</b></span>
								<ul class="d-inline float-right">
									<li class="d-inline ml-2"><a href="#" class="text-primary">赞(1)</a></li>
									<li class="d-inline ml-2">|</li>
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										<span><b class="text-info">寒江雪</b>:&nbsp;&nbsp;</span>
										<span>这个是直播时间哈，觉得晚的话可以直接看之前的完整录播的~</span>
									</div>
									<div class="mt-3">
										<span>2019-04-15 15:32:18</span>
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											<li class="d-inline ml-2"><a href="#" class="text-primary">赞(1)</a></li>
											<li class="d-inline ml-2">|</li>
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										<span><i class="text-info">Sissi</i> 回复 <b class="text-info">寒江雪</b>:&nbsp;&nbsp;</span>
										<span>怎么买录播课程呢</span>
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										<span>2019-04-15 15:32:18</span>
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											<li class="d-inline ml-2"><a href="#" class="text-primary">赞(1)</a></li>
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								<span class="font-size-12 text-success">Nikeless</span>
								<span class="badge badge-secondary float-right floor">1#</span>
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								强烈支持!!!
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							<div class="mt-4 text-muted font-size-12">
								<span>发布于 <b>2019-04-15 15:32:18</b></span>
								<ul class="d-inline float-right">
									<li class="d-inline ml-2"><a href="#" class="text-primary">赞(1)</a></li>
									<li class="d-inline ml-2">|</li>
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