Day27：阻塞队列、Kafka入门、发送系统通知、显示系统

阻塞队列BlockingQueue

BlockingQueue

解决线程通信的问题。
阻塞方法:put、take。

生产者消费者模式

生产者:产生数据的线程。
消费者:使用数据的线程。

（Thread1生产者，Thread2消费者）

实现类

ArrayBlockingQueue
LinkedBlockingQueue
PriorityBlockingQueue、SynchronousQueue、DelayQueue等。

@SpringBootTest
@ContextConfiguration(classes = CommunityApplication.class)
public class BlockingQueueTests {public static void main(String[] args) {BlockingQueue<Integer> queue = new ArrayBlockingQueue<>(10);new Thread(new Producer(queue)).start();new Thread(new Consumer(queue)).start();new Thread(new Consumer(queue)).start();new Thread(new Consumer(queue)).start();}}class Producer implements Runnable{private BlockingQueue<Integer> queue;public Producer(BlockingQueue<Integer> blockingQueue){this.queue = blockingQueue;}@Overridepublic void run() {try {for (int i = 0; i < 100; i++) {Thread.sleep(20);queue.put(i);System.out.println(Thread.currentThread().getName() + "生产：" + i);}} catch (InterruptedException e) {e.printStackTrace();}}
}class Consumer implements Runnable{private BlockingQueue<Integer> queue;public Consumer(BlockingQueue<Integer> blockingQueue){this.queue = blockingQueue;}@Overridepublic void run() {try {while (true) {Thread.sleep(new Random().nextInt(1000));int i = queue.take();System.out.println(Thread.currentThread().getName() + "消费：" + i);}} catch (InterruptedException e) {e.printStackTrace();}}
}

Kafka入门

Kafka简介

Kafka是一个分布式的流媒体平台。
应用：消息系统、日志收集、用户行为追踪、流式处理。

Kafka特点

高吞吐量、消息持久化（存到硬盘中，顺序读取效率很高）、高可靠性（分布式）、高扩展性（加服务器很简单）。

Kafka术语

Broker（服务器）、Zookeeper（管理集群）
Topic（发布订阅模式的主题，存放消息的位置）、Partition、Offset
主从复制：Leader Replica（主副本，分布式用于响应请求）、Follower Replica（从副本，只用于备份）

kafka_106">安装和启动kafka

使用homebrew进行安装：

brew install kafka

配置zookepper和kafka

在/opt/homebrew/etc/kafka文件夹下

一个是zookeeper.propeties改数据存放路径，一个是server.properties改日志路径

启动zookepper和kafka

brew services start zookeeper
brew services start kafka

创建主题（消息的分类和位置）

kafka-topics --create --bootstrap-server localhost:9092 --replication-factor 1 --partitions 1 --topic test

iris@MateBook kafka % kafka-topics --create --bootstrap-server localhost:9092 --replication-factor 1 --partitions 1 --topic test
Created topic test.

列出主题

kafka-topics --list --bootstrap-server localhost:9092

iris@MateBook kafka % kafka-topics --list --bootstrap-server localhost:9092 
test

生产消息

kafka-console-producer --broker-list localhost:9092 --topic test

消费消息（重新开一个shell）

kafka-console-consumer --bootstrap-server localhost:9092 --topic test --from-beginning

[外链图片转存中…(img-l01uFwLR-1714057590711)]

Spring整合Kafka

引入依赖

spring-kafka

配置Kafka

配置server、consumer

访问Kafka

- 生产者

kafkaTemplate.send(topic, data);
- 消费者
@KafkaListener(topics = {“test”})
public void handleMessage(ConsumerRecord record) {}

引入依赖

<dependency><groupId>org.springframework.kafka</groupId><artifactId>spring-kafka</artifactId>
</dependency>

配置Kafka

# Kafka Properties
spring.kafka.bootstrap-servers=localhost:9092
spring.kafka.consumer.group-id=community-consumer-group
spring.kafka.consumer.enable-auto-commit=true//自动提交
spring.kafka.consumer.auto-commit-interv  000//自动提交频率

编写测试类

package com.nowcoder.community;import com.newcoder.community.CommunityApplication;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Component;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(classes = CommunityApplication.class)
public class KafkaTests {@Autowiredprivate KafkaProducer kafkaProducer;@Testpublic void testKafka() {kafkaProducer.sendMessage("test", "你好");kafkaProducer.sendMessage("test", "在吗");try {Thread.sleep(1000 * 10);} catch (InterruptedException e) {e.printStackTrace();}}}@Component
class KafkaProducer {@Autowiredprivate KafkaTemplate kafkaTemplate;public void sendMessage(String topic, String content) {kafkaTemplate.send(topic, content);}}@Component
class KafkaConsumer {@KafkaListener(topics = {"test"})public void handleMessage(ConsumerRecord record) {System.out.println(record.value());}}

发送系统通知

触发事件

评论后，发布通知
点赞后，发布通知
关注后，发布通知

处理事件

封装事件对象（不单单拼字符串，用一个对象表示）
开发事件的生产者
开发事件的消费者

编写实体类Event

public class Event {private String topic;private int userId;private int entityType;//事件发生在哪个实体上private int entityId;//事件的实体的idprivate int entityUserId;//事件的作者private Map<String, Object> data = new HashMap<>();//存储事件的数据(额外的有扩展性）public String getTopic() {return topic;}public Event setTopic(String topic) {this.topic = topic;return this;}public int getUserId() {return userId;}public Event setUserId(int userId) {this.userId = userId;return this;}public int getEntityType() {return entityType;}public Event setEntityType(int entityType) {this.entityType = entityType;return this;}public int getEntityId() {return entityId;}public Event setEntityId(int entityId) {this.entityId = entityId;return this;}public int getEntityUserId() {return entityUserId;}public Event setEntityUserId(int entityUserId) {this.entityUserId = entityUserId;return this;}public Map<String, Object> getData() {return data;}public Event setData(String key, Object value) {this.data.put(key, value);//直接存入datareturn this;}
}

给setter加返回值，返回Event对象，好处是之后修改方便；
setData传入key和value，不用手动put了，也是方便。

开发生产者（主动生产，什么时候想触发事件就调用）

@Component
public class EventProducer {@Autowiredprivate KafkaTemplate kafkaTemplate;//处理事件public void fireEvent(Event event){//将事件发布到指定的主题kafkaTemplate.send(event.getTopic(), JSONObject.toJSONString(event));}
}

开发消费者（被动接受）

@Component
public class EventConsumer implements CommunityConstant {//需要记日志private static final Logger logger = LoggerFactory.getLogger(EventConsumer.class);@Autowiredprivate MessageService messageService;//处理事件,写一个方法把所有主题都处理@KafkaListener(topics = {TOPIC_COMMENT, TOPIC_LIKE, TOPIC_FOLLOW})public void handleCommentMessage(ConsumerRecord record){if(record == null || record.value() == null){logger.error("消息的内容为空");return;}Event event = JSONObject.parseObject(record.value().toString(), Event.class);if(event == null){logger.error("消息格式错误");return;}//发送站内通知,假设后台id是1，系统用户，原来的from to id没必要，存主题。Message message= new Message();message.setFromId(SYSTEM_USER_ID);message.setToId(event.getEntityUserId());message.setConversationId(event.getTopic());message.setCreateTime(new Date());//设置contentMap<String, Object> content = new HashMap<>();content.put("userId", event.getUserId());content.put("entityType", event.getEntityType());content.put("entityId", event.getEntityId());if(!event.getData().isEmpty()) {for (Map.Entry<String, Object> entry : event.getData().entrySet()) {content.put(entry.getKey(), entry.getValue());}}message.setContent(JSONObject.toJSONString(content));messageService.addMessage(message);}}

调用生产者

评论时

 @RequestMapping(path = "add/{discussPostId}", method = RequestMethod.POST)public String addComment(@PathVariable("discussPostId") int discussPostId, Comment comment, Model model) {comment.setUserId(hostHolder.getUser().getId());comment.setStatus(0);comment.setCreateTime(new Date());commentService.addComment(comment);//触发评论通知事件Event event = new Event().setTopic(TOPIC_COMMENT).setUserId(hostHolder.getUser().getId()).setEntityType(comment.getEntityType()).setEntityId(comment.getEntityId()).setData("postId", discussPostId);if(comment.getEntityType() == ENTITY_TYPE_POST) {DiscussPost target = discussPostService.findDiscussPostById(comment.getEntityId());event.setEntityUserId(target.getUserId());}else if(comment.getEntityType() == ENTITY_TYPE_COMMENT) {Comment target = commentService.findCommentById(comment.getEntityId());event.setEntityUserId(target.getUserId());}eventProducer.fireEvent(event);return "redirect:/discuss/detail/" + discussPostId;}

findCommentById在DAO和commentService中补充。

点赞时

@Controller
public class LikeController implements CommunityConstant{@Autowiredprivate LikeService likeService;@Autowiredprivate HostHolder hostHolder;@Autowiredprivate EventProducer eventProducer;@RequestMapping(path = "/like", method = RequestMethod.POST)@ResponseBodypublic String like(int entityType, int entityId, int entityUserId, int postId){User user = hostHolder.getUser();likeService.like(user.getId(), entityType, entityId, entityUserId);//点赞操作//获取点赞数量long likeCount = likeService.findEntityLikeCount(entityType, entityId);//查询点赞数量// 获取点赞状态int likeStatus = likeService.findEntityLikeStatus(user.getId(), entityType, entityId);//查询点赞状态Map<String, Object> map = new HashMap<>();map.put("likeCount", likeCount);map.put("likeStatus", likeStatus);//触发点赞事件,只有点赞才触发if(likeStatus == 1){Event event = new Event().setTopic(TOPIC_LIKE).setUserId(hostHolder.getUser().getId()).setEntityType(entityType).setEntityId(entityId).setEntityUserId(entityUserId).setData("postId", postId);eventProducer.fireEvent(event);}return CommunityUtil.getJsonString(0, null, map);}}

点赞才触发，取消赞不触发；
重构了该方法，添加postId参数，之后要改前端。

关注时

@Controller
public class FollowController implements CommunityConstant {@Autowiredprivate FollowService followService;@Autowiredprivate HostHolder hostHolder;@Autowiredprivate UserService userService;@Autowiredprivate EventProducer eventProducer;@RequestMapping(path = "/follow", method = RequestMethod.POST)@ResponseBodypublic String follow(int entityType, int entityId) {User user = hostHolder.getUser();followService.follow(user.getId(), entityType, entityId);//触发关注事件,关注才通知，取消关注不通知//关注只针对人，连接的不是帖子详情， 不需要postIdEvent event = new Event().setTopic(TOPIC_FOLLOW).setUserId(hostHolder.getUser().getId()).setEntityType(entityType).setEntityId(entityId).setEntityUserId(entityId);eventProducer.fireEvent(event);return CommunityUtil.getJsonString(0, "已关注!");}//取消关注@RequestMapping(path = "/unfollow", method = RequestMethod.POST)//异步的@ResponseBodypublic String unfollow(int entityType, int entityId) {User user = hostHolder.getUser();followService.unfollow(user.getId(), entityType, entityId);return CommunityUtil.getJsonString(0, "已取消关注!");}

关注只针对人，连接的不是帖子详情，不需要postId

修改discuss-detail.html和js

Kafka数据锁死怎么办

删除kafka-logs文件

测试

发现报错，空指针异常：

原因是之前写AOP记录日志的代码时有一个参数可能会为null，这里加个简单的判断：

@Before("pointcut()")public void before(JoinPoint joinPoint) {//用户[1.2.3.4]，在[xxx]时间，访问了[com.newcoder.community.service.xxx()]。logger.debug("before");ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();if(attributes == null) {//不是常规的页面，不记录日志了return;}HttpServletRequest request = attributes.getRequest();String ip = request.getRemoteHost();String now = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());String target = joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName();logger.info(String.format("用户[%s], 在[%s], 访问了[%s]", ip, now, target));}

原因是这个日志会记录所有调用Service的情况，但只有访问页面的有request，消息队列中消费者使用的service的没有request，request就是null，比较坑。

修复后发现恢复正常了：

显示系统通知

通知列表

显示评论、点赞、关注三种类型的通知（只总的显示三类通知，最后只需要显示最后一条通知）

通知详情

分页显示某一类主题所包含的通知

未读消息

在页面头部显示所有的未读消息数量

通知列表

DAO层

为MessageMapper添加三个方法

 //查询某个主题下最新的通知Message selectLatestNotice(int userId, String topic);// 查询某个主题所包含的通知数量int selectNoticeCount(int userId, String topic);// 查询未读的通知的数量int selectNoticeUnreadCount(int userId, String topic);

修改Message-mapper.xml

<select id="selectLatestNotice" resultType="Message">select <include refid="selectFields"></include>from messagewhere id in (select max(id) from messagewhere status != 2) and from_id = 1and to_id = #{userId}and conversation_id = #{topic}</select><select id="selectNoticeCount" resultType="int">select count(id)from messagewhere status != 2and from_id = 1and to_id = #{userId}and conversation_id = #{topic}</select><select id="selectNoticeUnreadCount" resultType="int">select count(id)from messagewhere status = 0and from_id = 1<if test = "topic!=null">and conversation_id = #{topic}</if>and to_id = #{userId}</select>

Service层

为MessegeService添加以下方法：

public Message findLatestNotice(int userId, String topic) {return messageMapper.selectLatestNotice(userId, topic);}public int findNoticeCount(int userId, String topic) {return messageMapper.selectNoticeCount(userId, topic);}public int findNoticeUnreadCount(int userId, String topic) {return messageMapper.selectNoticeUnreadCount(userId, topic);}

Controller层

分别查评论、点赞和关注通知，以及总的未读通知数量（之前未读私信数量也一起实现，因为页面时整体展现的）。

@RequestMapping(path = "/notice", method = RequestMethod.GET)public String getNoticeList(Model model) {User user = hostHolder.getUser();//查询评论类通知Message message = messageService.findLatestNotice(user.getId(), TOPIC_COMMENT);Map<String, Object> messageVO = new HashMap<>();// 封装成集合if (message != null) {messageVO.put("message", message);// 转义（去掉转意字符）String content = HtmlUtils.htmlUnescape(message.getContent());Map<String, Object> data = JSONObject.parseObject(content, HashMap.class);messageVO.put("user", userService.findUserById((Integer) data.get("userId")));messageVO.put("entityType", data.get("entityType"));messageVO.put("entityId", data.get("entityId"));messageVO.put("postId", data.get("postId"));int count = messageService.findNoticeCount(user.getId(), TOPIC_COMMENT);messageVO.put("count", count);int unread = messageService.findNoticeUnreadCount(user.getId(), TOPIC_COMMENT);messageVO.put("unread", unread);}model.addAttribute("commentNotice", messageVO);//查询点赞类通知message = messageService.findLatestNotice(user.getId(), TOPIC_LIKE);messageVO = new HashMap<>();// 封装成集合if (message != null) {messageVO.put("message", message);// 转义（去掉转意字符）String content = HtmlUtils.htmlUnescape(message.getContent());Map<String, Object> data = JSONObject.parseObject(content, HashMap.class);messageVO.put("user", userService.findUserById((Integer) data.get("userId")));messageVO.put("entityType", data.get("entityType"));messageVO.put("entityId", data.get("entityId"));messageVO.put("postId", data.get("postId"));int count = messageService.findNoticeCount(user.getId(), TOPIC_LIKE);messageVO.put("count", count);int unread = messageService.findNoticeUnreadCount(user.getId(), TOPIC_LIKE);messageVO.put("unread", unread);}model.addAttribute("likeNotice", messageVO);//查询关注类通知message = messageService.findLatestNotice(user.getId(), TOPIC_FOLLOW);messageVO = new HashMap<>();// 封装成集合if (message != null) {messageVO.put("message", message);// 转义（去掉转意字符）String content = HtmlUtils.htmlUnescape(message.getContent());Map<String, Object> data = JSONObject.parseObject(content, HashMap.class);messageVO.put("user", userService.findUserById((Integer) data.get("userId")));messageVO.put("entityType", data.get("entityType"));messageVO.put("entityId", data.get("entityId"));//关注类的通知不需要postIdint count = messageService.findNoticeCount(user.getId(), TOPIC_FOLLOW);messageVO.put("count", count);int unread = messageService.findNoticeUnreadCount(user.getId(), TOPIC_FOLLOW);messageVO.put("unread", unread);}model.addAttribute("followNotice", messageVO);//查询未读消息数量int letterUnreadCount = messageService.findLetterUnreadCount(user.getId(), null);model.addAttribute("letterUnreadCount", letterUnreadCount);//查询未读通知数量int noticeUnreadCount = messageService.findNoticeUnreadCount(user.getId(), null);model.addAttribute("noticeUnreadCount", noticeUnreadCount);return "/site/notice";}

处理模版

letter.html（点系统通知能连接到notice）

<li class="nav-item"><a class="nav-link position-relative" th:href="@{/notice/list}">系统通知<span class="badge badge-danger" th:text="${noticeUnreadCount}" th:if="${noticeUnreadCount!=0}">27</span></a></li>

notice.html

<!-- 评论类通知 --><li class="media pb-3 pt-3 mb-3 border-bottom position-relative" th:if="${commentNotice.message!=null}"><span class="badge badge-danger" th:text="${commentNotice.unread!=0?commentNotice.unread:''}">3</span><img src="http://static.nowcoder.com/images/head/reply.png" class="mr-4 user-header" alt="通知图标"><div class="media-body"><h6 class="mt-0 mb-3"><span>评论</span><span class="float-right text-muted font-size-12"th:text="${#dates.format(commentNotice.message.createTime,'yyyy-MM-dd HH:mm:ss')}">2019-04-28 14:13:25</span></h6><div><a th:href="@{/notice/detail/comment}">用户<i th:utext="${commentNotice.user.username}">nowcoder</i>评论了你的<b th:text="${commentNotice.entityType==1?'帖子':'回复'}">帖子</b> ...</a><ul class="d-inline font-size-12 float-right"><li class="d-inline ml-2"><span class="text-primary">共 <i th:text="${commentNotice.count}">3</i> 条会话</span></li></ul></div></div></li>

（其他两个一样的）

通知详情

DAO层

// 查询某个主题所包含的通知列表List<Message> selectNotices(int userId, String topic, int offset, int limit);

<select id="selectNotices" resultType="Message">select <include refid="selectFields"></include>from messagewhere status != 2and from_id = 1and to_id = #{userId}and conversation_id = #{topic}order by create_time desclimit #{offset}, #{limit}
</select>

Service层

public List<Message> findNotices(int userId, String topic, int offset, int limit) {return messageMapper.selectNotices(userId, topic, offset, limit);
}

Controller层

@RequestMapping(path = "/notice/detail/{topic}", method = RequestMethod.GET)public String getNoticeDetail(@PathVariable("topic") String topic, Page page, Model model) {User user = hostHolder.getUser();page.setLimit(5);page.setPath("/notice/detail/" + topic);page.setRows(messageService.findNoticeCount(user.getId(), topic));List<Message> noticeList = messageService.findNotices(user.getId(), topic, page.getOffset(), page.getLimit());List<Map<String, Object>> noticeVoList = new ArrayList<>();if (noticeList != null) {for (Message notice : noticeList) {Map<String, Object> map = new HashMap<>();// 通知map.put("notice", notice);// 内容String content = HtmlUtils.htmlUnescape(notice.getContent());Map<String, Object> data = JSONObject.parseObject(content, HashMap.class);map.put("user", userService.findUserById((Integer) data.get("userId")));map.put("entityType", data.get("entityType"));map.put("entityId", data.get("entityId"));map.put("postId", data.get("postId"));// 通知作者map.put("fromUser", userService.findUserById(notice.getFromId()));noticeVoList.add(map);}}model.addAttribute("notices", noticeVoList);// 设置已读List<Integer> ids = getLetterIds(noticeList);if (!ids.isEmpty()) {messageService.readMessage(ids);}return "/site/notice-detail";}

处理模版

notice.html跳转到对应的detail:

<a th:href="@{/notice/detail/comment}">用户<i th:utext="${commentNotice.user.username}">nowcoder</i>评论了你的<b th:text="${commentNotice.entityType==1?'帖子':'回复'}">帖子</b> ...</a>

notice-detail.html：

<!doctype html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><link rel="icon" th:href= "@{/img/captcha.png}" /><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous"><link rel="stylesheet" th:href="@{/css/global.css}" /><link rel="stylesheet" th:href="@{/css/letter.css}" /><title>私信列表</title>
</head>
<body><div class="nk-container"><!-- 头部 --><header class="bg-dark sticky-top" th:replace="index::header"><div class="container"><!-- 导航 --><nav class="navbar navbar-expand-lg navbar-dark"><!-- logo --><a class="navbar-brand" href="#"></a><button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button><!-- 功能 --><div class="collapse navbar-collapse" id="navbarSupportedContent"><ul class="navbar-nav mr-auto"><li class="nav-item ml-3 btn-group-vertical"><a class="nav-link" href="../index.html">首页</a></li><li class="nav-item ml-3 btn-group-vertical"><a class="nav-link position-relative" href="letter.html">消息<span class="badge badge-danger">12</span></a></li><li class="nav-item ml-3 btn-group-vertical"><a class="nav-link" href="register.html">注册</a></li><li class="nav-item ml-3 btn-group-vertical"><a class="nav-link" href="login.html">登录</a></li><li class="nav-item ml-3 btn-group-vertical dropdown"><a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><img src="http://images.nowcoder.com/head/1t.png" class="rounded-circle" style="width:30px;"/></a><div class="dropdown-menu" aria-labelledby="navbarDropdown"><a class="dropdown-item text-center" href="profile.html">个人主页</a><a class="dropdown-item text-center" href="setting.html">账号设置</a><a class="dropdown-item text-center" href="login.html">退出登录</a><div class="dropdown-divider"></div><span class="dropdown-item text-center text-secondary">nowcoder</span></div></li></ul><!-- 搜索 --><form class="form-inline my-2 my-lg-0" action="search.html"><input class="form-control mr-sm-2" type="search" aria-label="Search" /><button class="btn btn-outline-light my-2 my-sm-0" type="submit">搜索</button></form></div></nav></div></header><!-- 内容 --><div class="main"><div class="container"><div class="position-relative"><!-- 选项 --><ul class="nav nav-tabs mb-3"><li class="nav-item"><a class="nav-link position-relative active" th:href="@{/letter/list}">朋友私信<span class="badge badge-danger" th:text="${letterUnreadCount}" th:if="${letterUnreadCount!=0}">3</span></a></li><li class="nav-item"><a class="nav-link position-relative" th:href="@{/notice/list}">系统通知<span class="badge badge-danger" th:text="${noticeUnreadCount}" th:if="${noticeUnreadCount!=0}">27</span></a></li></ul><button type="button" class="btn btn-primary btn-sm position-absolute rt-0" data-toggle="modal" data-target="#sendModal">发私信</button></div><!-- 弹出框 --><div class="modal fade" id="sendModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true"><div class="modal-dialog modal-lg" role="document"><div class="modal-content"><div class="modal-header"><h5 class="modal-title" id="exampleModalLabel">发私信</h5><button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button></div><div class="modal-body"><form><div class="form-group"><label for="recipient-name" class="col-form-label">发给：</label><input type="text" class="form-control" id="recipient-name"></div><div class="form-group"><label for="message-text" class="col-form-label">内容：</label><textarea class="form-control" id="message-text" rows="10"></textarea></div></form></div><div class="modal-footer"><button type="button" class="btn btn-secondary" data-dismiss="modal">取消</button><button type="button" class="btn btn-primary" id="sendBtn">发送</button></div></div></div></div>		<!-- 提示框 --><div class="modal fade" id="hintModal" tabindex="-1" role="dialog" aria-labelledby="hintModalLabel" aria-hidden="true"><div class="modal-dialog modal-lg" role="document"><div class="modal-content"><div class="modal-header"><h5 class="modal-title" id="hintModalLabel">提示</h5></div><div class="modal-body" id="hintBody">发送完毕!</div></div></div></div>				<!-- 私信列表 --><ul class="list-unstyled"><li class="media pb-3 pt-3 mb-3 border-bottom position-relative" th:each="map:${conversations}"><span class="badge badge-danger" th:text="${map.unreadCount}" th:if="${map.unreadCount!=0}">3</span><a href="profile.html"><img th:src="${map.target.headerUrl}" class="mr-4 rounded-circle user-header" alt="用户头像" ></a><div class="media-body"><h6 class="mt-0 mb-3"><span class="text-success" th:utext="${map.target.username}">落基山脉下的闲人</span><span class="float-right text-muted font-size-12" th:text="${#dates.format(map.conversation.createTime,'yyyy-MM-dd HH:mm:ss')}">2019-04-28 14:13:25</span></h6><div><a th:href="@{|/letter/detail/${map.conversation.conversationId}|}" th:utext="${map.conversation.content}">米粉车, 你来吧!</a><ul class="d-inline font-size-12 float-right"><li class="d-inline ml-2"><a href="#" class="text-primary">共<i th:text="${map.letterCount}">5</i>条会话</a></li></ul></div></div></li></ul><!-- 分页 --><nav class="mt-5" th:replace="index::pagination"><ul class="pagination justify-content-center"><li class="page-item"><a class="page-link" href="#">首页</a></li><li class="page-item disabled"><a class="page-link" href="#">上一页</a></li><li class="page-item active"><a class="page-link" href="#">1</a></li><li class="page-item"><a class="page-link" href="#">2</a></li><li class="page-item"><a class="page-link" href="#">3</a></li><li class="page-item"><a class="page-link" href="#">4</a></li><li class="page-item"><a class="page-link" href="#">5</a></li><li class="page-item"><a class="page-link" href="#">下一页</a></li><li class="page-item"><a class="page-link" href="#">末页</a></li></ul></nav></div></div><!-- 尾部 --><footer class="bg-dark"><div class="container"><div class="row"><!-- 二维码 --><div class="col-4 qrcode"><img src="https://uploadfiles.nowcoder.com/app/app_download.png" class="img-thumbnail" style="width:136px;" /></div><!-- 公司信息 --><div class="col-8 detail-info"><div class="row"><div class="col"><ul class="nav"><li class="nav-item"><a class="nav-link text-light" href="#">关于我们</a></li><li class="nav-item"><a class="nav-link text-light" href="#">加入我们</a></li><li class="nav-item"><a class="nav-link text-light" href="#">意见反馈</a></li><li class="nav-item"><a class="nav-link text-light" href="#">企业服务</a></li><li class="nav-item"><a class="nav-link text-light" href="#">联系我们</a></li><li class="nav-item"><a class="nav-link text-light" href="#">免责声明</a></li><li class="nav-item"><a class="nav-link text-light" href="#">友情链接</a></li></ul></div></div><div class="row"><div class="col"><ul class="nav btn-group-vertical company-info"><li class="nav-item text-white-50">公司地址：北京市朝阳区大屯路东金泉时代3-2708北京牛客科技有限公司</li><li class="nav-item text-white-50">联系方式：010-60728802(电话)&nbsp;&nbsp;&nbsp;&nbsp;admin@nowcoder.com</li><li class="nav-item text-white-50">牛客科技©2018 All rights reserved</li><li class="nav-item text-white-50">京ICP备14055008号-4 &nbsp;&nbsp;&nbsp;&nbsp;<img src="http://static.nowcoder.com/company/images/res/ghs.png" style="width:18px;" />京公网安备 11010502036488号</li></ul></div></div></div></div></div></footer></div><script src="https://code.jquery.com/jquery-3.3.1.min.js" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" crossorigin="anonymous"></script><script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" crossorigin="anonymous"></script><script th:src="@{/js/global.js}"></script><script th:src="@{/js/letter.js}"></script>
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