feat: 完善后端架构和service层实现
- 创建完整的entity实体类体系，包括所有业务实体 - 实现BaseEntity基类，统一管理公共字段 - 创建雪花算法ID生成器和自动填充处理器 - 简化所有mapper接口，只继承BaseMapper - 重构service层，使用LambdaQueryWrapper进行数据库操作 - 创建BasePageRequest分页查询基类 - 完善用户上下文管理和JWT认证 - 新增WebSocket聊天功能和相关控制器 - 更新前端配置和组件，完善用户认证流程 - 同步数据库建表脚本
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package com.emotion.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.emotion.common.BasePageRequest;
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import com.emotion.entity.Message;
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import com.emotion.mapper.MessageMapper;
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import com.emotion.service.MessageService;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.stereotype.Service;
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import org.springframework.util.StringUtils;
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import java.time.LocalDateTime;
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import java.util.List;
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import java.util.UUID;
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/**
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* 消息服务实现类
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*
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* @author emotion-museum
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* @date 2025-07-23
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*/
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@Service
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public class MessageServiceImpl extends ServiceImpl<MessageMapper, Message> implements MessageService {
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private static final Logger log = LoggerFactory.getLogger(MessageServiceImpl.class);
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@Override
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public IPage<Message> getPage(BasePageRequest request) {
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Page<Message> page = new Page<>(request.getCurrent(), request.getSize());
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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// 关键词搜索
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if (StringUtils.hasText(request.getKeyword())) {
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wrapper.like(Message::getContent, request.getKeyword());
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}
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wrapper.eq(Message::getIsDeleted, 0);
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// 排序
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if (StringUtils.hasText(request.getOrderBy())) {
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if ("asc".equalsIgnoreCase(request.getOrderDirection())) {
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wrapper.orderByAsc(Message::getTimestamp);
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} else {
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wrapper.orderByDesc(Message::getTimestamp);
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}
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} else {
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wrapper.orderByDesc(Message::getTimestamp);
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}
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return this.page(page, wrapper);
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}
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@Override
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public IPage<Message> getPageByConversationId(BasePageRequest request, String conversationId) {
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Page<Message> page = new Page<>(request.getCurrent(), request.getSize());
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getConversationId, conversationId)
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.eq(Message::getIsDeleted, 0);
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// 关键词搜索
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if (StringUtils.hasText(request.getKeyword())) {
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wrapper.like(Message::getContent, request.getKeyword());
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}
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wrapper.orderByAsc(Message::getTimestamp);
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return this.page(page, wrapper);
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}
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@Override
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public List<Message> getByConversationId(String conversationId) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getConversationId, conversationId)
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.eq(Message::getIsDeleted, 0)
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.orderByAsc(Message::getTimestamp);
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return this.list(wrapper);
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}
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@Override
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public List<Message> getBySender(String sender) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getSender, sender)
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.eq(Message::getIsDeleted, 0)
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.orderByDesc(Message::getTimestamp);
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return this.list(wrapper);
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}
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@Override
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public List<Message> getByTimeRange(String conversationId, LocalDateTime startTime, LocalDateTime endTime) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getConversationId, conversationId)
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.between(Message::getTimestamp, startTime, endTime)
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.eq(Message::getIsDeleted, 0)
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.orderByAsc(Message::getTimestamp);
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return this.list(wrapper);
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}
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@Override
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public Message getLastMessageByConversationId(String conversationId) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getConversationId, conversationId)
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.eq(Message::getIsDeleted, 0)
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.orderByDesc(Message::getTimestamp)
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.last("LIMIT 1");
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return this.getOne(wrapper);
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}
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@Override
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public List<Message> getRepliesByParentId(String parentMessageId) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getParentMessageId, parentMessageId)
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.eq(Message::getIsDeleted, 0)
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.orderByAsc(Message::getTimestamp);
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return this.list(wrapper);
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}
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@Override
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public Long countByConversationId(String conversationId) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getConversationId, conversationId)
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.eq(Message::getIsDeleted, 0);
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return this.count(wrapper);
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}
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@Override
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public Long countBySender(String sender) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getSender, sender)
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.eq(Message::getIsDeleted, 0);
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return this.count(wrapper);
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}
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@Override
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public Long countUnreadMessages(String conversationId) {
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LambdaQueryWrapper<Message> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(Message::getConversationId, conversationId)
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.eq(Message::getIsRead, 0)
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.eq(Message::getIsDeleted, 0);
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return this.count(wrapper);
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}
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@Override
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public boolean updateStatus(String messageId, String status) {
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LambdaUpdateWrapper<Message> wrapper = new LambdaUpdateWrapper<>();
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wrapper.eq(Message::getId, messageId)
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.set(Message::getStatus, status)
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.set(Message::getUpdateTime, LocalDateTime.now());
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return this.update(wrapper);
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}
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@Override
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public boolean updateReadStatus(String messageId, Integer isRead) {
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LambdaUpdateWrapper<Message> wrapper = new LambdaUpdateWrapper<>();
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wrapper.eq(Message::getId, messageId)
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.set(Message::getIsRead, isRead)
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.set(Message::getUpdateTime, LocalDateTime.now());
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return this.update(wrapper);
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}
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@Override
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public boolean markConversationMessagesAsRead(String conversationId) {
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LambdaUpdateWrapper<Message> wrapper = new LambdaUpdateWrapper<>();
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wrapper.eq(Message::getConversationId, conversationId)
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.eq(Message::getIsRead, 0)
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.set(Message::getIsRead, 1)
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.set(Message::getUpdateTime, LocalDateTime.now());
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return this.update(wrapper);
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}
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@Override
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public Message createMessage(String conversationId, String userId, String content,
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String contentType, String senderType, String senderId) {
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try {
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Message message = Message.builder()
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.id(UUID.randomUUID().toString())
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.conversationId(conversationId)
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.userId(userId)
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.content(content)
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.contentType(StringUtils.hasText(contentType) ? contentType : "text")
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.senderType(senderType)
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.sender(senderId)
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.timestamp(LocalDateTime.now())
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.status("sent")
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.isRead(0)
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.build();
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boolean saved = this.save(message);
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if (saved) {
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log.info("保存消息成功: id={}, conversationId={}, sender={}",
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message.getId(), conversationId, senderId);
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return message;
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} else {
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log.error("保存消息失败: conversationId={}, sender={}", conversationId, senderId);
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return null;
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}
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} catch (Exception e) {
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log.error("保存消息异常: conversationId={}, error={}", conversationId, e.getMessage(), e);
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return null;
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}
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}
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@Override
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public boolean markAsRead(String messageId) {
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return updateReadStatus(messageId, 1);
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}
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}
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