diff --git a/QYZH.InteractiveMagazine.IService/IAiChatService.cs b/QYZH.InteractiveMagazine.IService/IAiChatService.cs
index d355f8c..10b31a7 100644
--- a/QYZH.InteractiveMagazine.IService/IAiChatService.cs
+++ b/QYZH.InteractiveMagazine.IService/IAiChatService.cs
@@ -8,9 +8,10 @@ namespace QYZH.InteractiveMagazine.IService;
public interface IAiChatService
{
///
- /// 发送消息进行AI对话
+ /// 流式AI对话,逐块返回AI生成的内容
///
/// 聊天输入
- /// AI返回的提示词内容
- Task ChatAsync(AiChatInput input);
+ /// 取消令牌
+ /// AI生成的内容片段流
+ IAsyncEnumerable ChatAsync(AiChatInput input, CancellationToken cancellationToken = default);
}
diff --git a/QYZH.InteractiveMagazine.Repository/BaseRepository.cs b/QYZH.InteractiveMagazine.Repository/BaseRepository.cs
index 37bc4c9..d1fb61e 100644
--- a/QYZH.InteractiveMagazine.Repository/BaseRepository.cs
+++ b/QYZH.InteractiveMagazine.Repository/BaseRepository.cs
@@ -19,7 +19,8 @@ namespace QYZH.InteractiveMagazine.Repository
private readonly ILogger> _logger;
public BaseRepository(ISqlSugarClient context = null) : base(context)
{
- Context = DbScoped.SugarScope;
+ // 优先使用注入的 context,如果没有注入则使用 DbScoped.SugarScope
+ Context = context ?? DbScoped.SugarScope;
_logger = ServiceContext.GetService>>();
}
diff --git a/QYZH.InteractiveMagazine.Service/AiChatService.cs b/QYZH.InteractiveMagazine.Service/AiChatService.cs
index 2f29ce4..0b33d8c 100644
--- a/QYZH.InteractiveMagazine.Service/AiChatService.cs
+++ b/QYZH.InteractiveMagazine.Service/AiChatService.cs
@@ -4,6 +4,7 @@ using QYZH.InteractiveMagazine.IService;
using QYZH.InteractiveMagazine.Models.Common;
using QYZH.InteractiveMagazine.Models.Dto;
using System.Net.Http.Headers;
+using System.Runtime.CompilerServices;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;
@@ -11,7 +12,7 @@ using System.Text.Json.Serialization;
namespace QYZH.InteractiveMagazine.Service;
///
-/// AI聊天服务实现(OpenAI API规范)
+/// AI聊天服务实现(OpenAI API规范,流式返回)
///
public class AiChatService(
IHttpClientFactory httpClientFactory,
@@ -22,9 +23,9 @@ public class AiChatService(
/// 预设系统提示词
///
private const string SystemPrompt = """
- # 提示词:AI 优化“题目评分/报告提示词”
+ # 提示词:AI 优化"题目评分/报告提示词"
- 你是一个专业的提示词优化专家。你的任务是**将用户输入的粗糙、口语化的“题目评分/报告提示词”重构为结构清晰、指令明确、便于 AI 直接执行的标准化提示词**。
+ 你是一个专业的提示词优化专家。你的任务是**将用户输入的粗糙、口语化的"题目评分/报告提示词"重构为结构清晰、指令明确、便于 AI 直接执行的标准化提示词**。
用户(题目制作者)当前输入的内容可能包含:题目描述、作答要求、打分规则、评分维度、报告层级、示例等,但组织混乱、表述模糊。你需要**保留所有原始信息,不增删任何实质性规则**,仅优化其结构、逻辑层次和表达精度。
@@ -34,8 +35,8 @@ public class AiChatService(
1. **信息完整**:用户原文中的所有要点、示例、层级区分必须全部保留。
2. **结构清晰**:将内容归入标准模块(如 `任务目标`、`输入格式`、`评分标准`、`报告生成要求`)。
- 3. **指令明确**:将模糊表述(如“要写得好一点”)转化为可操作的判定条件(如“必须包含三层结构:解释原因 + 表达情绪 + 提出方案”)。
- 4. **语言精练**:去除冗余修饰,保留关键限定词(如“仅”“必须”“至少”)。
+ 3. **指令明确**:将模糊表述(如"要写得好一点")转化为可操作的判定条件(如"必须包含三层结构:解释原因 + 表达情绪 + 提出方案")。
+ 4. **语言精练**:去除冗余修饰,保留关键限定词(如"仅""必须""至少")。
5. **格式统一**:最终输出为 Markdown 格式,使用标题(`#` `##` `###`)、列表(`-`)、加粗/斜体等提升可读性。
---
@@ -55,7 +56,7 @@ public class AiChatService(
- `## 报告生成规范`(层级名称、触发条件、评语示例/生成规则)
- `## 注意事项`(如有特殊约束)
3. **润色表达**:
- - 将“可能”“大概”等不确定词改为明确的“必须”“至少”;
+ - 将"可能""大概"等不确定词改为明确的"必须""至少";
- 将并列条件用编号列表(1. 2. 3.)拆分;
- 将示例单独以代码块或引用块呈现,避免与规则混淆。
4. **保持原意**:不得添加用户未提及的新评分维度或报告层级,也不得删除任何已有规则。
@@ -66,7 +67,7 @@ public class AiChatService(
- 只输出优化后的完整提示词(即 AI 可直接使用的评分/报告 prompt),不要输出分析过程。
- 使用 Markdown 语法,标题层级从 `#` 开始。
- - 所有原有示例必须原样保留,并标明“示例”或放在引用块中。
+ - 所有原有示例必须原样保留,并标明"示例"或放在引用块中。
---
@@ -74,9 +75,11 @@ public class AiChatService(
""";
///
- /// AI聊天,根据用户需求生成提示词
+ /// 流式AI聊天,逐块返回AI生成的内容
///
- public async Task ChatAsync(AiChatInput input)
+ public async IAsyncEnumerable ChatAsync(
+ AiChatInput input,
+ [EnumeratorCancellation] CancellationToken cancellationToken = default)
{
if (string.IsNullOrWhiteSpace(input.Message))
{
@@ -95,9 +98,9 @@ public class AiChatService(
throw new BusinessException("AI聊天服务配置不完整,请检查 AiChat 配置节", 500);
}
- logger.LogInformation("开始调用AI聊天服务,消息长度:{Length}", input.Message.Length);
+ logger.LogInformation("开始调用AI聊天服务(流式),消息长度:{Length}", input.Message.Length);
- // 构建 OpenAI Chat Completions 请求体
+ // 构建 OpenAI Chat Completions 请求体(启用流式返回)
var requestBody = new
{
model = model,
@@ -107,7 +110,8 @@ public class AiChatService(
new { role = "user", content = input.Message }
},
max_tokens = maxTokens,
- temperature = temperature
+ temperature = temperature,
+ stream = true
};
var jsonContent = JsonSerializer.Serialize(requestBody, new JsonSerializerOptions
@@ -115,40 +119,55 @@ public class AiChatService(
DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
});
- // 创建 HttpClient 并发起请求
+ // 创建 HttpClient 并发起请求(使用 ResponseHeadersRead 提前获取响应头以流式读取)
var client = httpClientFactory.CreateClient();
client.Timeout = TimeSpan.FromSeconds(timeoutSeconds > 0 ? timeoutSeconds : 300);
var request = new HttpRequestMessage(HttpMethod.Post, $"{baseUrl.TrimEnd('/')}/chat/completions");
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", apiKey);
request.Content = new StringContent(jsonContent, Encoding.UTF8, "application/json");
- var response = await client.SendAsync(request);
- var responseContent = await response.Content.ReadAsStringAsync();
+ using var response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
if (!response.IsSuccessStatusCode)
{
- logger.LogError("AI聊天服务调用失败,状态码:{StatusCode},响应:{Response}", response.StatusCode, responseContent);
+ var errorContent = await response.Content.ReadAsStringAsync(cancellationToken);
+ logger.LogError("AI聊天服务调用失败,状态码:{StatusCode},响应:{Response}", response.StatusCode, errorContent);
throw new BusinessException($"AI服务调用失败:{response.StatusCode}", 500);
}
- // 解析 OpenAI 响应
- using var doc = JsonDocument.Parse(responseContent);
- var choices = doc.RootElement.GetProperty("choices");
- if (choices.GetArrayLength() == 0)
+ // 流式读取响应体
+ using var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken);
+ using var reader = new StreamReader(responseStream);
+
+ while (!reader.EndOfStream)
{
- throw new BusinessException("AI未返回有效内容", 500);
+ cancellationToken.ThrowIfCancellationRequested();
+
+ var line = await reader.ReadLineAsync(cancellationToken);
+ if (line == null) break;
+
+ // 只处理 data: 开头的行
+ if (!line.StartsWith("data: ")) continue;
+
+ var data = line.Substring(6);
+ if (data == "[DONE]") break;
+
+ // 解析 SSE chunk,提取 delta.content
+ using var chunkDoc = JsonDocument.Parse(data);
+ var choicesEl = chunkDoc.RootElement.GetProperty("choices");
+ if (choicesEl.GetArrayLength() == 0) continue;
+
+ var delta = choicesEl[0].GetProperty("delta");
+ if (delta.TryGetProperty("content", out var contentEl))
+ {
+ var content = contentEl.GetString();
+ if (!string.IsNullOrEmpty(content))
+ {
+ yield return content;
+ }
+ }
}
- var content = choices[0]
- .GetProperty("message")
- .GetProperty("content")
- .GetString();
-
- logger.LogInformation("AI聊天服务调用成功,返回内容长度:{Length}", content?.Length ?? 0);
-
- return new AiChatOutput
- {
- Content = content ?? string.Empty
- };
+ logger.LogInformation("AI聊天服务(流式)调用完成");
}
}
diff --git a/QYZH.InteractiveMagazine.WebApi/Controllers/AiChatController.cs b/QYZH.InteractiveMagazine.WebApi/Controllers/AiChatController.cs
index 8e1d9c9..baa433f 100644
--- a/QYZH.InteractiveMagazine.WebApi/Controllers/AiChatController.cs
+++ b/QYZH.InteractiveMagazine.WebApi/Controllers/AiChatController.cs
@@ -1,8 +1,8 @@
using Microsoft.AspNetCore.Mvc;
using QYZH.InteractiveMagazine.IService;
-using QYZH.InteractiveMagazine.Models.Common;
using QYZH.InteractiveMagazine.Models.Dto;
using QYZH.InteractiveMagazine.Models.Enum;
+using System.Text.Json;
namespace QYZH.InteractiveMagazine.WebApi.Controllers;
@@ -24,27 +24,39 @@ public class AiChatController : BaseController
}
///
- /// AI聊天,根据需求生成提示词
+ /// AI聊天(流式返回),根据需求生成提示词
///
/// 用户需求消息
- /// AI生成的提示词(Markdown格式)
+ /// SSE流,逐块返回AI生成的提示词内容
[HttpPost]
- public async Task> ChatAsync([FromBody] AiChatInput input)
+ public async Task ChatAsync([FromBody] AiChatInput input)
{
+ Response.ContentType = "text/event-stream";
+ Response.Headers.Append("Cache-Control", "no-cache");
+ Response.Headers.Append("Connection", "keep-alive");
+
try
{
- var result = await _aiChatService.ChatAsync(input);
- return Success(result, "AI聊天成功");
+ await foreach (var chunk in _aiChatService.ChatAsync(input, HttpContext.RequestAborted))
+ {
+ var data = JsonSerializer.Serialize(new { content = chunk });
+ await Response.WriteAsync($"data: {data}\n\n");
+ await Response.Body.FlushAsync();
+ }
+
+ await Response.WriteAsync("data: [DONE]\n\n");
+ await Response.Body.FlushAsync();
}
- catch (BusinessException ex)
+ catch (OperationCanceledException)
{
- _logger.LogWarning(ex, "AI聊天业务异常: {Message}", ex.Message);
- return BaseResponse.Fail(ex.Message);
+ _logger.LogInformation("客户端断开连接,AI聊天流式返回终止");
}
catch (Exception ex)
{
- _logger.LogError(ex, "AI聊天系统异常,参数:{Input}", input);
- return BaseResponse.Fail("AI聊天失败,请稍后重试");
+ _logger.LogError(ex, "AI聊天流式返回异常,参数:{Input}", input);
+ var errorData = JsonSerializer.Serialize(new { error = "AI聊天失败,请稍后重试" });
+ await Response.WriteAsync($"data: {errorData}\n\n");
+ await Response.Body.FlushAsync();
}
}
}
diff --git a/QYZH.InteractiveMagazine.WorkService/Consumers/AutoDotCodeConsumer.cs b/QYZH.InteractiveMagazine.WorkService/Consumers/AutoDotCodeConsumer.cs
index 19f5126..b867997 100644
--- a/QYZH.InteractiveMagazine.WorkService/Consumers/AutoDotCodeConsumer.cs
+++ b/QYZH.InteractiveMagazine.WorkService/Consumers/AutoDotCodeConsumer.cs
@@ -235,7 +235,7 @@ public class AutoDotCodeConsumer(IConfiguration configuration,
#region 把本地文集上传到OOS上
- var tempOssDownloadKey = "BookPagePdf/download/" + downloadFileName;
+ var tempOssDownloadKey = "Journal/download/" + downloadFileName;
const int bufferSize = 1 * 1024 * 1024; // 1MB
diff --git a/QYZH.InteractiveMagazine.WorkService/appsettings.json b/QYZH.InteractiveMagazine.WorkService/appsettings.json
index ca3a55b..61de186 100644
--- a/QYZH.InteractiveMagazine.WorkService/appsettings.json
+++ b/QYZH.InteractiveMagazine.WorkService/appsettings.json
@@ -44,5 +44,17 @@
}
]
},
- "AllowedHosts": "*"
+ "AllowedHosts": "*",
+ "AliyunOSSConfigs": {
+ "AccessKeyID": "LTAI5tEBXGewpHSLiSxyx6Bf",
+ "AccessKeySecret": "w29b8wkw6XQVL8GWXgp3ZesgYeDKvf",
+ "VodBucketName": "outin-5277bbb52bec11f08dbd00163e169e2b.oss-cn-beijing.aliyuncs.com",
+ "BucketName": "qyzh2025test",
+ "Region": "beijing",
+ "RoleArn": "acs:ram::1064745380176636:role/aliyunosstokengeneratorrole",
+ "DurationSeconds": 3600, //过期时间(秒)
+ "Endpoint": "oss-cn-beijing.aliyuncs.com",
+ "ProjectName": "InteractiveMagazine",
+ "Domain": "https://oss.test.qyzhjy.com/"
+ }
}