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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.xyzh</groupId>
<artifactId>apis</artifactId>
<version>1.0.0</version>
</parent>
<groupId>org.xyzh.apis</groupId>
<artifactId>api-message</artifactId>
<version>${urban-lifeline.version}</version>
<packaging>jar</packaging>
<properties>
<maven.compiler.source>21</maven.compiler.source>
<maven.compiler.target>21</maven.compiler.target>
</properties>
</project>

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package org.xyzh.api.message.dto;
import lombok.Data;
import lombok.EqualsAndHashCode;
import org.xyzh.common.dto.BaseDTO;
import io.swagger.v3.oas.annotations.media.Schema;
/**
* @description 消息渠道配置DTO
* @filename TbMessageChannelDTO.java
* @author yslg
* @copyright yslg
* @since 2025-11-05
*/
@Data
@EqualsAndHashCode(callSuper = true)
@Schema(description = "消息渠道配置DTO")
public class TbMessageChannelDTO extends BaseDTO {
private static final long serialVersionUID = 1L;
@Schema(description = "渠道ID")
private String channelId;
@Schema(description = "渠道编码app/sms/email/wechat/dingtalk等")
private String channelCode;
@Schema(description = "渠道名称")
private String channelName;
@Schema(description = "渠道描述")
private String channelDesc;
@Schema(description = "渠道配置JSON格式")
private String config;
@Schema(description = "渠道状态enabled-启用/disabled-禁用/maintenance-维护中")
private String status;
@Schema(description = "优先级(数字越大优先级越高)")
private Integer priority;
}

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package org.xyzh.api.message.dto;
import lombok.Data;
import lombok.EqualsAndHashCode;
import org.xyzh.common.dto.BaseDTO;
import io.swagger.v3.oas.annotations.media.Schema;
/**
* @description 消息DTO
* @filename TbMessageDTO.java
* @author yslg
* @copyright yslg
* @since 2025-11-04
*/
@Data
@EqualsAndHashCode(callSuper = true)
@Schema(description = "消息DTO")
public class TbMessageDTO extends BaseDTO {
private static final long serialVersionUID = 1L;
@Schema(description = "消息ID")
private String messageId;
@Schema(description = "消息标题")
private String title;
@Schema(description = "消息内容")
private String content;
@Schema(description = "消息类型")
private String type;
@Schema(description = "消息状态")
private String status;
}

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package org.xyzh.api.message.dto;
import lombok.Data;
import lombok.EqualsAndHashCode;
import org.xyzh.common.dto.BaseDTO;
import io.swagger.v3.oas.annotations.media.Schema;
/**
* @description 消息发送范围DTO
* @filename TbMessageRangeDTO.java
* @author yslg
* @copyright yslg
* @since 2025-11-05
*/
@Data
@EqualsAndHashCode(callSuper = true)
@Schema(description = "消息发送范围DTO")
public class TbMessageRangeDTO extends BaseDTO {
private static final long serialVersionUID = 1L;
@Schema(description = "消息ID")
private String messageId;
@Schema(description = "目标类型user-指定用户/dept-部门/role-角色/all-全员")
private String targetType;
@Schema(description = "目标ID用户、部门、角色ID等all类型时为空")
private String targetId;
@Schema(description = "发送渠道app/sms/email/wechat/dingtalk等")
private String channel;
}

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package org.xyzh.api.message.dto;
import lombok.Data;
import lombok.EqualsAndHashCode;
import org.xyzh.common.dto.BaseDTO;
import io.swagger.v3.oas.annotations.media.Schema;
import java.time.ZonedDateTime;
/**
* @description 用户消息接收记录DTO
* @filename TbMessageReceiverDTO.java
* @author yslg
* @copyright yslg
* @since 2025-11-05
*/
@Data
@EqualsAndHashCode(callSuper = true)
@Schema(description = "用户消息接收记录DTO")
public class TbMessageReceiverDTO extends BaseDTO {
private static final long serialVersionUID = 1L;
@Schema(description = "消息ID")
private String messageId;
@Schema(description = "用户ID")
private String userId;
@Schema(description = "接收渠道app/sms/email/wechat/dingtalk等")
private String channel;
@Schema(description = "消息状态unread-未读/read-已读/handled-已处理/deleted-已删除")
private String status;
@Schema(description = "阅读时间")
private ZonedDateTime readTime;
@Schema(description = "处理时间")
private ZonedDateTime handleTime;
}

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package org.xyzh.api.message.service;
import org.xyzh.api.message.dto.TbMessageDTO;
import org.xyzh.api.message.vo.MessageVO;
import org.xyzh.common.core.domain.ResultDomain;
import org.xyzh.common.core.page.PageParam;
/**
* @description 消息服务接口
* @filename MessageService.java
* @author yslg
* @copyright yslg
* @since 2025-11-05
*/
public interface MessageService {
//================= 用户查看消息列表 =================
/**
* @description 获取我的消息列表
* @param userId 用户ID
* @return ResultDomain<TbMessageDTO> 消息列表
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> getMyMessageList(TbMessageDTO filter);
/**
* @description 获取我的消息分页列表
* @param TbMessageDTO filter 消息过滤条件
* @param PageParam pageParam 分页参数
* @return ResultDomain<TbMessageDTO> 消息分页列表
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> getMyMessagePage(TbMessageDTO filter, PageParam pageParam);
/**
* @description 获取我的消息详情
* @param messageId 消息ID
* @return ResultDomain<TbMessageDTO> 消息详情
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> getMyMessageDetail(String messageId);
// ================= 用户处理消息 =================
/**
* @description 用户处理消息
* @param messageId 消息ID
* @param status 消息状态
* @return ResultDomain<TbMessageDTO> 消息处理结果
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> handleMessage(String messageId, String status);
// ================= 管理员查看消息列表 =================
/**
* @description 获取消息列表
* @param TbMessageDTO filter 消息过滤条件
* @return ResultDomain<TbMessageDTO> 消息列表
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> getMessageList(TbMessageDTO filter);
/**
* @description 获取消息分页列表
* @param TbMessageDTO filter 消息过滤条件
* @param PageParam pageParam 分页参数
* @return ResultDomain<TbMessageDTO> 消息分页列表
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> getMessagePage(TbMessageDTO filter, PageParam pageParam);
/**
* @description 获取消息详情
* @param messageId 消息ID
* @return ResultDomain<TbMessageDTO> 消息详情
* @author yslg
* @since 2025-11-05
*/
ResultDomain<MessageVO> getMessageDetail(String messageId);
// ================= 管理员处理消息 =================
/**
* @description 创建消息
* @param MessageVO messageVO 消息VO
* @return ResultDomain<TbMessageDTO> 创建结果
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> createMessage(MessageVO messageVO);
/**
* @description 更新消息
* @param MessageVO messageVO 消息VO
* @return ResultDomain<TbMessageDTO> 更新结果
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> updateMessage(MessageVO messageVO);
/**
* @description 删除消息
* @param messageId 消息ID
* @return ResultDomain<TbMessageDTO> 删除结果
* @author yslg
* @since 2025-11-05
*/
ResultDomain<Boolean> deleteMessage(String messageId);
/**
* @description 发送消息
* @param MessageVO messageVO 消息VO
* @return ResultDomain<MessageVO> 发送结果
* @author yslg
* @since 2025-11-05
*/
ResultDomain<MessageVO> sendMessage(MessageVO messageVO);
/**
* @description 撤回消息
* @param messageId 消息ID
* @return ResultDomain<TbMessageDTO> 撤回结果
* @author yslg
* @since 2025-11-05
*/
ResultDomain<TbMessageDTO> withdrawMessage(String messageId);
}

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package org.xyzh.api.message.vo;
import io.swagger.v3.oas.annotations.media.Schema;
import lombok.Data;
import lombok.EqualsAndHashCode;
import org.xyzh.common.vo.BaseVO;
/**
* @description 消息发送范围和渠道VORange和Channel的平铺组合
* @filename MessageRangeChannelVO.java
* @author yslg
* @copyright yslg
* @since 2025-11-05
*/
@Data
@EqualsAndHashCode(callSuper = true)
@Schema(description = "消息发送范围和渠道VO")
public class MessageRangeChannelVO extends BaseVO {
// ========== Range相关字段 ==========
@Schema(description = "消息ID")
private String messageId;
@Schema(description = "目标类型user-指定用户/dept-部门/role-角色/all-全员")
private String targetType;
@Schema(description = "目标ID用户、部门、角色ID等all类型时为空")
private String targetId;
@Schema(description = "目标名称(用户名、部门名、角色名等,用于前端展示)")
private String targetName;
// ========== Channel相关字段 ==========
@Schema(description = "渠道编码app/sms/email/wechat/dingtalk等")
private String channelCode;
@Schema(description = "渠道名称")
private String channelName;
@Schema(description = "渠道描述")
private String channelDesc;
@Schema(description = "渠道状态enabled-启用/disabled-禁用/maintenance-维护中")
private String channelStatus;
@Schema(description = "渠道优先级(数字越大优先级越高)")
private Integer channelPriority;
}

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package org.xyzh.api.message.vo;
import java.util.List;
import org.xyzh.api.message.dto.TbMessageReceiverDTO;
import org.xyzh.common.vo.BaseVO;
import io.swagger.v3.oas.annotations.media.Schema;
import lombok.Data;
import lombok.EqualsAndHashCode;
/**
* @description 消息VO包含消息详情和发送范围
* @filename MessageVO.java
* @author yslg
* @copyright yslg
* @since 2025-11-05
*/
@Data
@EqualsAndHashCode(callSuper = true)
@Schema(description = "消息VO")
public class MessageVO extends BaseVO {
@Schema(description = "消息ID")
private String messageId;
@Schema(description = "消息标题")
private String title;
@Schema(description = "消息内容")
private String content;
@Schema(description = "消息类型")
private String type;
@Schema(description = "消息状态")
private String status;
@Schema(description = "消息发送范围列表")
private List<MessageRangeChannelVO> messageRanges;
@Schema(description = "消息接收记录列表(管理员查看时使用)")
private List<TbMessageReceiverDTO> messageReceivers;
}

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# 消息系统设计说明
## 📊 数据表结构
### 1. tb_message - 消息主表
存储消息的基本信息
**主要字段:**
- `message_id` - 消息ID主键
- `title` - 消息标题
- `content` - 消息内容
- `type` - 消息类型
- `status` - 消息状态
### 2. tb_message_range - 消息发送范围定义表
定义消息要发送给哪些对象,通过什么渠道
**主要字段:**
- `message_id` - 消息ID
- `target_type` - 目标类型user/dept/role/all
- `target_id` - 目标ID用户、部门、角色ID等
- `channel` - 发送渠道app/sms/email/wechat等
- **唯一约束:** (message_id, target_type, target_id, channel)
**使用示例:**
- 发送给部门001通过app`{target_type: 'dept', target_id: 'D001', channel: 'app'}`
- 发送给部门001通过sms`{target_type: 'dept', target_id: 'D001', channel: 'sms'}`
- 发送给全员通过app`{target_type: 'all', target_id: null, channel: 'app'}`
### 3. tb_message_receiver - 用户消息接收记录表
记录每个用户实际收到的消息及处理状态
**主要字段:**
- `message_id` - 消息ID
- `user_id` - 用户ID
- `channel` - 接收渠道
- `status` - 消息状态unread/read/handled/deleted
- `read_time` - 阅读时间
- `handle_time` - 处理时间
- **唯一约束:** (message_id, user_id, channel)
**索引:**
- `idx_message_user_user_status` - 快速查询用户消息列表
- `idx_message_user_message` - 快速查询消息的接收情况
### 4. tb_message_channel - 消息渠道配置表
管理各种消息发送渠道的配置
**主要字段:**
- `channel_id` - 渠道ID主键
- `channel_code` - 渠道编码app/sms/email/wechat/dingtalk
- `channel_name` - 渠道名称
- `config` - 渠道配置JSON格式存储API密钥等
- `status` - 渠道状态enabled/disabled/maintenance
- `priority` - 优先级
**预置渠道:**
- app - 应用内消息(已启用)
- sms - 短信通知(已禁用)
- email - 邮件通知(已禁用)
- wechat - 微信通知(已禁用)
- dingtalk - 钉钉通知(已禁用)
## 📦 DTO/VO 结构
### TbMessageDTO
消息基本信息DTO
**字段:**
- messageId
- title
- content
- type
- status
### TbMessageRangeDTO
消息发送范围DTO
**字段:**
- messageId
- targetType - 目标类型
- targetId - 目标ID
- channel - 发送渠道
### TbMessageReceiverDTO
用户消息接收记录DTO
**字段:**
- messageId
- userId
- channel
- status
- readTime
- handleTime
### TbMessageChannelDTO
消息渠道配置DTO
**字段:**
- channelId
- channelCode
- channelName
- channelDesc
- config
- status
- priority
### MessageVO
消息视图对象(用于创建和查看消息)
**字段:**
- messageId
- title
- content
- type
- status
- createTime
- creator
- messageRanges - 消息发送范围列表
- messageReceivers - 消息接收记录列表(管理员查看时使用)
## 🔄 业务流程
### 1. 创建并发送消息
```java
// 创建消息
MessageVO messageVO = new MessageVO();
messageVO.setTitle("系统维护通知");
messageVO.setContent("系统将于今晚22:00进行维护");
messageVO.setType("notice");
// 定义发送范围发给IT部门通过app和email
List<TbMessageRangeDTO> ranges = new ArrayList<>();
ranges.add(new TbMessageRangeDTO() {{
setTargetType("dept");
setTargetId("DEPT_IT");
setChannel("app");
}});
ranges.add(new TbMessageRangeDTO() {{
setTargetType("dept");
setTargetId("DEPT_IT");
setChannel("email");
}});
messageVO.setMessageRanges(ranges);
// 发送消息
messageService.sendMessage(messageVO);
```
**系统处理:**
1.`tb_message` 中创建消息记录
2.`tb_message_range` 中保存发送范围
3. 根据 `target_type``target_id` 查询具体用户列表
4.`tb_message_receiver` 中为每个用户创建接收记录
5. 根据 `channel` 调用相应的渠道服务发送消息
### 2. 用户查看消息列表
```sql
-- 查询用户未读消息
SELECT m.*, r.status, r.read_time, r.channel
FROM message.tb_message m
JOIN message.tb_message_receiver r ON m.message_id = r.message_id
WHERE r.user_id = 'USER_001'
AND r.status = 'unread'
AND r.deleted = false
ORDER BY m.create_time DESC;
```
### 3. 用户处理消息
```java
// 标记消息为已读
messageService.handleMessage(messageId, "read");
// 标记消息为已处理
messageService.handleMessage(messageId, "handled");
```
**系统处理:**
- 更新 `tb_message_receiver` 表的 `status` 字段
- 根据状态更新 `read_time``handle_time`
### 4. 管理员查看消息统计
```sql
-- 查询某条消息的发送统计
SELECT
r.channel,
r.status,
COUNT(*) as count
FROM message.tb_message_receiver r
WHERE r.message_id = 'MSG_001'
AND r.deleted = false
GROUP BY r.channel, r.status;
```
## 🎯 设计优势
1. **职责分离**
- `tb_message_range` - 定义发送规则
- `tb_message_receiver` - 记录实际接收情况
2. **多渠道支持**
- 同一消息可通过多个渠道发送
- 渠道配置独立管理
- 易于扩展新渠道
3. **灵活的目标定义**
- 支持按用户、部门、角色、全员发送
- 同一目标可使用不同渠道
4. **完整的状态跟踪**
- 记录阅读时间、处理时间
- 支持已读/未读/已处理/已删除等状态
5. **性能优化**
- 合理的索引设计
- 支持高效的用户消息查询
## 📝 注意事项
1. **数据一致性**
- 发送消息时,确保 `tb_message_range``tb_message_receiver` 的事务一致性
2. **渠道验证**
- 发送前检查 `tb_message_channel` 中渠道是否启用
- 根据 `priority` 选择备用渠道
3. **性能考虑**
- 全员消息target_type='all')需要异步处理
- 大量用户时分批创建 `tb_message_receiver` 记录
4. **软删除**
- 所有表都使用软删除deleted字段
- 查询时注意添加 `WHERE deleted = false` 条件