替换股票行情接口为东方财富：返回实际交易价格，与券商显示一致，无复权偏差

AssetManager.API/Properties/launchSettings.json

@@ -16,7 +16,12 @@
       "launchUrl": "swagger",
       "applicationUrl": "http://localhost:5050",
       "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development"
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "ConnectionStrings__Default": "server=localhost;database=assetmanager;user=root;password=你的数据库密码;",
+        "Jwt__SecretKey": "你的JWT密钥至少16位",
+        "Jwt__Issuer": "AssetManager",
+        "Jwt__Audience": "AssetManager",
+        "Tiingo__ApiKey": "你的TiingoAPI密钥"
       }
     },
     "https": {
@@ -26,7 +31,12 @@
       "launchUrl": "swagger",
       "applicationUrl": "https://localhost:7040;http://localhost:5050",
       "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development"
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "ConnectionStrings__Default": "server=localhost;database=assetmanager;user=root;password=你的数据库密码;",
+        "Jwt__SecretKey": "你的JWT密钥至少16位",
+        "Jwt__Issuer": "AssetManager",
+        "Jwt__Audience": "AssetManager",
+        "Tiingo__ApiKey": "你的TiingoAPI密钥"
       }
     },
     "IIS Express": {
@@ -34,7 +44,12 @@
       "launchBrowser": true,
       "launchUrl": "swagger",
       "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development"
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "ConnectionStrings__Default": "server=localhost;database=assetmanager;user=root;password=你的数据库密码;",
+        "Jwt__SecretKey": "你的JWT密钥至少16位",
+        "Jwt__Issuer": "AssetManager",
+        "Jwt__Audience": "AssetManager",
+        "Tiingo__ApiKey": "你的TiingoAPI密钥"
       }
     }
   }

AssetManager.Infrastructure/Services/MarketDataService.cs

@@ -39,7 +39,7 @@ public class MarketDataService : IMarketDataService
     }
 
     /// <summary>
-    /// 获取股票实时价格（使用腾讯财经接口，免费无限制，支持盘前盘后）
+    /// 获取股票实时价格（使用东方财富接口，免费无限制，返回实际交易价格，和券商一致）
     /// </summary>
     /// <param name="symbol">股票代码</param>
     /// <returns>股票价格信息</returns>
@@ -47,36 +47,22 @@ public class MarketDataService : IMarketDataService
     {
         try
         {
-            _logger.LogInformation($"Requesting stock price for symbol: {symbol} (腾讯财经接口)");
+            _logger.LogInformation($"Requesting stock price for symbol: {symbol} (东方财富接口)");
 
-            // 腾讯财经美股接口：前缀us，大写代码
+            // 东方财富美股接口：secid=105.代码，105代表美股
-            var url = $"http://qt.gtimg.cn/q=us{symbol.ToUpper()}";
+            var url = $"https://push2.eastmoney.com/api/qt/stock/get?secid=105.{symbol.ToUpper()}&ut=fa5fd1943c7b386f172d6893dbfba10b&fields=f43,f60&np=1&fltt=2&invt=2";
-            var response = await _httpClient.GetStringAsync(url);
+            var response = await _httpClient.GetFromJsonAsync<EastMoneyStockResponse>(url);
 
-            if (string.IsNullOrEmpty(response) || !response.Contains("~"))
+            if (response?.data == null || response.data.f43 <= 0)
             {
-                throw new Exception($"腾讯财经接口返回无效数据，标的: {symbol}");
+                throw new Exception($"东方财富接口返回无效数据，标的: {symbol}");
             }
 
-            // 解析返回数据
+            // 提取字段：f43=最新价 f60=昨收价，单位都是分，转成元
-            var parts = response.Split('"')[1].Split('~');
+            var currentPrice = response.data.f43 / 100m;
-            if (parts.Length < 36)
+            var prevClose = response.data.f60 / 100m;
-            {
-                throw new Exception($"腾讯财经返回字段不足，标的: {symbol}");
-            }
             
-            // 提取字段：[3]=最新价 [4]=昨收价
+            _logger.LogDebug("东方财富接口返回 {Symbol}：最新价 {CurrentPrice}，昨收价 {PrevClose}，涨跌额 {Change}", 
-            if (!decimal.TryParse(parts[3], out var currentPrice) || currentPrice <= 0)
-            {
-                throw new Exception($"解析最新价失败，标的: {symbol}，返回值: {parts[3]}");
-            }
-
-            if (!decimal.TryParse(parts[4], out var prevClose) || prevClose <= 0)
-            {
-                prevClose = currentPrice; // 解析失败用当前价当昨收
-            }
-            
-            _logger.LogDebug("腾讯财经接口返回 {Symbol}：最新价 {CurrentPrice}，昨收价 {PrevClose}，涨跌额 {Change}", 
                 symbol, currentPrice, prevClose, currentPrice - prevClose);
 
             return new MarketPriceResponse
@@ -90,12 +76,35 @@ public class MarketDataService : IMarketDataService
         }
         catch (Exception ex)
         {
-            _logger.LogError(ex, $"腾讯财经接口获取价格失败，标的: {symbol}，降级使用Tiingo接口");
+            _logger.LogError(ex, $"东方财富接口获取价格失败，标的: {symbol}，降级使用Tiingo接口");
             // 降级使用Tiingo接口
             return await GetStockPriceFromTiingoAsync(symbol);
         }
     }
 
+    /// <summary>
+    /// 东方财富美股接口响应模型
+    /// </summary>
+    internal class EastMoneyStockResponse
+    {
+        public EastMoneyStockData? data { get; set; }
+        public int rc { get; set; }
+        public string? msg { get; set; }
+    }
+
+    internal class EastMoneyStockData
+    {
+        /// <summary>
+        /// 最新价（单位：分）
+        /// </summary>
+        public decimal f43 { get; set; }
+        
+        /// <summary>
+        /// 昨收价（单位：分）
+        /// </summary>
+        public decimal f60 { get; set; }
+    }
+
     /// <summary>
     /// 从Tiingo获取股票价格（降级用）
     /// </summary>