优化
This commit is contained in:
@@ -8,6 +8,7 @@ import org.springframework.http.MediaType;
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import org.springframework.stereotype.Component;
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import org.springframework.web.reactive.function.client.WebClient;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import java.util.HashMap;
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import java.util.Map;
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@@ -62,8 +63,7 @@ public class DifyClient {
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.accept(MediaType.TEXT_EVENT_STREAM)
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.retrieve()
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.bodyToFlux(String.class)
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.map(this::parseSSEEvent)
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.filter(resp -> resp != null)
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.flatMap(event -> Mono.justOrEmpty(parseSSEEvent(event)))
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.doOnNext(resp -> {
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if (resp.getConversationId() != null) {
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responseConversationId.set(resp.getConversationId());
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@@ -83,59 +83,64 @@ public class DifyClient {
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* 解析 SSE 事件
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*/
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private DifyChatRespVO parseSSEEvent(String event) {
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if (event == null || event.isEmpty()) {
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if (event == null || !event.startsWith("data:")) {
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return null;
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}
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String jsonStr = event.substring(5).trim();
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if (jsonStr.isEmpty() || "[DONE]".equals(jsonStr)) {
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return null;
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}
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try {
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// 解析 SSE 事件格式
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// data: {"event": "message", "answer": "xxx", "conversation_id": "xxx"}
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if (event.startsWith("data:")) {
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String jsonStr = event.substring(5).trim();
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if (jsonStr.isEmpty() || jsonStr.equals("[DONE]")) {
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return null;
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}
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String eventType = extractJsonValue(jsonStr, "event");
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String answer = extractJsonValue(jsonStr, "answer");
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String conversationId = extractJsonValue(jsonStr, "conversation_id");
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// 简单解析 JSON(实际项目建议使用 Jackson/Gson)
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String eventType = extractJsonValue(jsonStr, "event");
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String answer = extractJsonValue(jsonStr, "answer");
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String conversationId = extractJsonValue(jsonStr, "conversation_id");
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if ("message".equals(eventType) || "agent_message".equals(eventType)) {
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return DifyChatRespVO.message(answer, conversationId);
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} else if ("workflow_finished".equals(eventType) || "message_end".equals(eventType)) {
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return DifyChatRespVO.done(conversationId, null);
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} else if ("error".equals(eventType)) {
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return DifyChatRespVO.error(answer);
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}
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}
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return switch (eventType) {
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case "message", "agent_message" -> DifyChatRespVO.message(answer, conversationId);
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case "workflow_finished", "message_end" -> DifyChatRespVO.done(conversationId, null);
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case "error" -> DifyChatRespVO.error(answer);
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default -> null;
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};
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} catch (Exception e) {
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log.warn("[parseSSEEvent] 解析 SSE 事件失败: {}", event, e);
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return null;
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}
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return null;
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}
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/**
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* 简单提取 JSON 值
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* 简单提取 JSON 值(支持字符串和非字符串格式)
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*/
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private String extractJsonValue(String json, String key) {
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String pattern = "\"" + key + "\"\\s*:\\s*\"";
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int start = json.indexOf(pattern);
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if (start == -1) {
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// 尝试非字符串格式
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pattern = "\"" + key + "\"\\s*:\\s*";
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start = json.indexOf(pattern);
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if (start == -1) return null;
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start += pattern.length();
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int end = json.indexOf(",", start);
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if (end == -1) end = json.indexOf("}", start);
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if (end == -1) return null;
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return json.substring(start, end).trim();
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// 查找 "key": 后的位置,兼容带空格和不带空格的格式
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int keyStart = json.indexOf("\"" + key + "\":");
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if (keyStart == -1) {
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return null;
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}
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start += pattern.length();
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int end = json.indexOf("\"", start);
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if (end == -1) return null;
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return json.substring(start, end);
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int valueStart = keyStart + key.length() + 3; // 跳过 "key":
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// 跳过空白字符
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while (valueStart < json.length() && Character.isWhitespace(json.charAt(valueStart))) {
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valueStart++;
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}
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if (valueStart >= json.length()) {
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return null;
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}
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char firstChar = json.charAt(valueStart);
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// 字符串值 "value"
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if (firstChar == '"') {
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int end = json.indexOf('"', valueStart + 1);
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return end != -1 ? json.substring(valueStart + 1, end) : null;
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}
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// 非字符串值(数字、布尔等)
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int end = json.indexOf(',', valueStart);
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if (end == -1) {
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end = json.indexOf('}', valueStart);
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}
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return end != -1 ? json.substring(valueStart, end).trim() : null;
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}
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}
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@@ -53,7 +53,7 @@ public interface MemberUserProfileMapper extends BaseMapperX<MemberUserProfileDO
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* @param points 扣减积分数量(正数)
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* @return 影响行数,0表示余额不足
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*/
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@Update("UPDATE muey_member_user_profile " +
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@Update("UPDATE muye_member_user_profile " +
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"SET remaining_points = remaining_points - #{points}, " +
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" used_points = used_points + #{points}, " +
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" update_time = NOW() " +
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@@ -1,299 +0,0 @@
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# AI 服务积分扣减公共服务 - 实现计划
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> 版本: v1.0
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> 日期: 2026-02-22
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> 基于设计文档: points-service-integration.md
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---
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## 一、实现概览
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### 当前状态分析
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| 组件 | 文件路径 | 当前状态 | 需要修改 |
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|------|---------|---------|---------|
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| PointRecordDO | `muye/pointrecord/dal/PointRecordDO.java` | 完整 | 新增 status 字段 |
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| MemberUserProfileMapper | `muye/memberuserprofile/mapper/MemberUserProfileMapper.java` | 仅查询 | 新增原子扣减方法 |
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| AiModelConfigMapper | `muye/aimodelconfig/mapper/AiModelConfigMapper.java` | 仅分页 | 新增按平台查询方法 |
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| PointsService | 不存在 | **需新建** | 新建接口+实现 |
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| DifyService | 不存在 | **需新建** | 新建服务 |
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---
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## 二、实现步骤
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### 步骤 1: 数据库层修改
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#### 1.1 PointRecordDO 新增 status 字段
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**文件**: `muye/pointrecord/dal/PointRecordDO.java`
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```java
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// 新增字段
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private String status; // 状态:pending(预扣) / confirmed(已确认) / canceled(已取消)
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```
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**数据库迁移**:
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```sql
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ALTER TABLE muey_point_record ADD COLUMN status VARCHAR(20) DEFAULT 'confirmed' COMMENT '状态:pending-预扣 confirmed-已确认 canceled-已取消';
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```
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#### 1.2 MemberUserProfileMapper 新增方法
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**文件**: `muye/memberuserprofile/mapper/MemberUserProfileMapper.java`
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```java
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/**
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* 根据用户ID查询档案
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*/
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default MemberUserProfileDO selectByUserId(Long userId) {
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return selectOne(new LambdaQueryWrapperX<MemberUserProfileDO>()
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.eq(MemberUserProfileDO::getUserId, userId));
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}
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/**
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* 原子扣减积分(乐观锁)
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* @return 影响行数,0表示余额不足
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*/
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@Update("UPDATE muey_member_user_profile " +
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"SET remaining_points = remaining_points - #{points}, " +
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" used_points = used_points + #{points}, " +
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" update_time = NOW() " +
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"WHERE user_id = #{userId} AND remaining_points >= #{points}")
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int updatePointsDeduct(@Param("userId") Long userId, @Param("points") Integer points);
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```
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#### 1.3 AiModelConfigMapper 新增方法
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**文件**: `muye/aimodelconfig/mapper/AiModelConfigMapper.java`
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```java
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/**
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* 根据平台和模型类型查询配置
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*/
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default AiModelConfigDO selectByPlatformAndModelType(String platform, String modelType) {
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return selectOne(new LambdaQueryWrapperX<AiModelConfigDO>()
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.eq(AiModelConfigDO::getPlatform, platform)
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.eq(AiModelConfigDO::getModelType, modelType)
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.eq(AiModelConfigDO::getStatus, 1));
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}
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```
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#### 1.4 PointRecordMapper 新增方法
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**文件**: `muye/pointrecord/mapper/PointRecordMapper.java`
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```java
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/**
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* 取消过期的预扣记录(30分钟前)
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*/
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@Update("UPDATE muey_point_record SET status = 'canceled', update_time = NOW() " +
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"WHERE status = 'pending' AND create_time < DATE_SUB(NOW(), INTERVAL 30 MINUTE)")
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int cancelExpiredPendingRecords();
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```
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---
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### 步骤 2: 公共积分服务
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#### 2.1 新建 PointsService 接口
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**文件**: `muye/points/service/PointsService.java`(新建)
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```java
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public interface PointsService {
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/**
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* 获取积分配置
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*/
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AiModelConfigDO getConfig(String platform, String modelType);
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/**
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* 预检积分(余额不足抛异常)
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*/
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void checkPoints(Long userId, Integer points);
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/**
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* 即时扣减(同步场景)
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*/
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Long deductPoints(Long userId, Integer points, String bizType, String bizId);
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/**
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* 创建预扣(流式/异步场景)
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* @return 预扣记录ID
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*/
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Long createPendingDeduct(Long userId, Integer points, String bizType, String bizId);
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/**
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* 确认预扣(实际扣减)
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*/
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void confirmPendingDeduct(Long recordId);
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/**
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* 取消预扣(不扣费)
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*/
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void cancelPendingDeduct(Long recordId);
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}
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```
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#### 2.2 新建 PointsServiceImpl 实现
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**文件**: `muye/points/service/PointsServiceImpl.java`(新建)
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核心逻辑:
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- `deductPoints`: 调用 Mapper 原子扣减,失败抛 `POINTS_DEDUCT_FAILED`
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- `createPendingDeduct`: 创建 status=pending 的记录
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- `confirmPendingDeduct`: 执行实际扣减 + 更新 status=confirmed
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- `cancelPendingDeduct`: 更新 status=canceled
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#### 2.3 新建错误码常量
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**文件**: `ErrorCodeConstants.java`(修改)
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```java
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// 积分相关错误码 1001001-1001003
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ErrorCode POINTS_INSUFFICIENT = new ErrorCode(1001001, "积分不足");
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ErrorCode POINTS_CONFIG_NOT_FOUND = new ErrorCode(1001002, "积分配置不存在");
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ErrorCode POINTS_DEDUCT_FAILED = new ErrorCode(1001003, "积分扣减失败");
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```
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---
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### 步骤 3: Dify 工作流集成
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#### 3.1 新建 Dify 配置类
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**文件**: `dify/config/DifyProperties.java`(新建)
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```java
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@ConfigurationProperties(prefix = "yudao.dify")
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public class DifyProperties {
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private String apiUrl;
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private Integer timeout = 60;
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}
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```
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#### 3.2 新建 DifyClient
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**文件**: `dify/client/DifyClient.java`(新建)
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- 调用 Dify 工作流 API
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- 支持流式响应
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- 传入 sysPrompt 参数
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#### 3.3 新建 DifyService
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**文件**: `dify/service/DifyService.java`(新建)
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```java
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public interface DifyService {
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/**
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* 流式聊天(带积分扣减)
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*/
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Flux<DifyChatRespVO> chatStream(DifyChatReqVO reqVO, Long userId);
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}
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```
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#### 3.4 新建 DifyController
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**文件**: `dify/controller/AppDifyController.java`(新建)
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```java
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@PostMapping("/api/tik/dify/chat/stream")
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public Flux<CommonResult<DifyChatRespVO>> chatStream(@RequestBody DifyChatReqVO reqVO);
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```
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---
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### 步骤 4: 集成到现有服务
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#### 4.1 AiChatMessageService 集成
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**文件**: `service/chat/AiChatMessageServiceImpl.java`(修改)
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在 `sendChatMessageStream` 方法中:
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1. 调用前:`pointsService.checkPoints()`
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2. 创建预扣:`pointsService.createPendingDeduct()`
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3. 流结束:`pointsService.confirmPendingDeduct()`
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4. 出错/取消:`pointsService.cancelPendingDeduct()`
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---
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### 步骤 5: 定时任务
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#### 5.1 预扣过期清理任务
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**文件**: `job/PointsPendingCleanJob.java`(新建)
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- 每 5 分钟执行
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- 调用 `pointRecordMapper.cancelExpiredPendingRecords()`
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---
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## 三、文件清单
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### 新建文件
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| 文件 | 路径 |
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|------|------|
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| PointsService | `muye/points/service/PointsService.java` |
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| PointsServiceImpl | `muye/points/service/PointsServiceImpl.java` |
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| DifyProperties | `dify/config/DifyProperties.java` |
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| DifyClient | `dify/client/DifyClient.java` |
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| DifyService | `dify/service/DifyService.java` |
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| DifyServiceImpl | `dify/service/DifyServiceImpl.java` |
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| DifyReqVO | `dify/vo/DifyChatReqVO.java` |
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| DifyRespVO | `dify/vo/DifyChatRespVO.java` |
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| AppDifyController | `dify/controller/AppDifyController.java` |
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| PointsPendingCleanJob | `job/PointsPendingCleanJob.java` |
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### 修改文件
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| 文件 | 修改内容 |
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|------|---------|
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| PointRecordDO | 新增 status 字段 |
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| MemberUserProfileMapper | 新增 selectByUserId、updatePointsDeduct 方法 |
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| AiModelConfigMapper | 新增 selectByPlatformAndModelType 方法 |
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| PointRecordMapper | 新增 cancelExpiredPendingRecords 方法 |
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| ErrorCodeConstants | 新增积分相关错误码 |
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| AiChatMessageServiceImpl | 集成积分扣减逻辑 |
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---
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## 四、数据库变更
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```sql
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-- 1. 积分记录表新增状态字段
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ALTER TABLE muey_point_record
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ADD COLUMN status VARCHAR(20) DEFAULT 'confirmed'
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COMMENT '状态:pending-预扣 confirmed-已确认 canceled-已取消';
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-- 2. 添加索引(可选优化)
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CREATE INDEX idx_point_record_status_time
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ON muey_point_record(status, create_time);
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```
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---
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## 五、依赖关系
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```
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业务层
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├── DifyService ──────┐
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├── AiChatMessageService ──┼──→ PointsService(公共服务)
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├── TikHubService ─────────┤ │
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├── VoiceService ──────────┤ ├── AiModelConfigMapper(配置查询)
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└── DigitalHumanService ───┘ ├── MemberUserProfileMapper(积分扣减)
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└── PointRecordMapper(流水记录)
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```
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---
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## 六、验收标准
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- [ ] PointsService 单元测试通过
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- [ ] Dify 流式接口正常返回
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- [ ] 积分不足时抛出正确异常
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- [ ] 流式中断时预扣正确取消
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- [ ] 预扣过期定时任务正常运行
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- [ ] 积分扣减原子性(并发不超扣)
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Reference in New Issue
Block a user