新增 SimApiRequestLogMiddleware 请求日志中间件，支持配置 ShowFullHeader / ShowFullResponse

Configurations/SimApiOptions.cs

@@ -56,6 +56,12 @@ public class SimApiOptions
     /// </summary>
     public bool EnableSimApiResponseFilter { get; set; } = true;
 
+    /// <summary>
+    /// 启用请求日志中间件
+    /// default: false
+    /// </summary>
+    public bool EnableRequestLog { get; set; }
+
     /// <summary>
     /// 开启ForwardHeaders,开启后可以透传负载均衡的Headers
     /// default: true
@@ -104,6 +110,8 @@ public class SimApiOptions
 
     public SimApiRouteOptions SimApiRouteOptions { get; set; } = new();
 
+    public SimApiRequestLogOptions SimApiRequestLogOptions { get; set; } = new();
+
     public void ConfigureSimApiRoute(Action<SimApiRouteOptions>? options = null)
     {
         options?.Invoke(SimApiRouteOptions);
@@ -143,4 +151,9 @@ public class SimApiOptions
     {
         options?.Invoke(SimApiAuthCenterOptions);
     }
+
+    public void ConfigureSimApiRequestLog(Action<SimApiRequestLogOptions>? options = null)
+    {
+        options?.Invoke(SimApiRequestLogOptions);
+    }
 }

Configurations/SimApiRequestLogOptions.cs

@@ -0,0 +1,14 @@
+namespace SimApi.Configurations;
+
+public class SimApiRequestLogOptions
+{
+    /// <summary>
+    /// 是否打印完整的请求Header
+    /// </summary>
+    public bool ShowFullHeader { get; set; }
+
+    /// <summary>
+    /// 是否打印完整的响应体
+    /// </summary>
+    public bool ShowFullResponse { get; set; }
+}

Middlewares/SimApiRequestLogMiddleware.cs

@@ -0,0 +1,105 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Runtime.ExceptionServices;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+using SimApi.Configurations;
+
+namespace SimApi.Middlewares;
+
+/// <summary>
+/// 请求日志中间件
+/// </summary>
+public class SimApiRequestLogMiddleware(
+    RequestDelegate next,
+    ILogger<SimApiRequestLogMiddleware> log,
+    SimApiRequestLogOptions options)
+{
+    public async Task InvokeAsync(HttpContext context)
+    {
+        var sw = Stopwatch.StartNew();
+        var fullUrl =
+            $"{context.Request.Scheme}://{context.Request.Host}{context.Request.Path}{context.Request.QueryString}";
+
+        var logMessage = new StringBuilder();
+        logMessage.AppendLine($"[{context.Request.Method}] {fullUrl}");
+
+        if (options.ShowFullHeader)
+        {
+            logMessage.AppendLine("*( RequestHeaders [Full] ) =>");
+            var headersDict = new Dictionary<string, string>();
+            foreach (var header in context.Request.Headers)
+            {
+                headersDict[header.Key] = header.Value.ToString();
+            }
+
+            logMessage.AppendLine(JsonSerializer.Serialize(headersDict));
+        }
+        else
+        {
+            logMessage.AppendLine("*( RequestHeaders ) =>");
+            var token = context.Request.Headers["Token"].FirstOrDefault() ?? "";
+            var queryId = context.Request.Headers["Query-Id"].FirstOrDefault() ?? "";
+            logMessage.AppendLine($"Token: {token}  QueryId: {queryId}");
+        }
+
+        context.Request.EnableBuffering();
+        var requestBodyText = await new StreamReader(context.Request.Body).ReadToEndAsync();
+        context.Request.Body.Seek(0, SeekOrigin.Begin);
+        logMessage.AppendLine("*( RequestBody ) =>");
+        logMessage.AppendLine(requestBodyText);
+
+        var originalBodyStream = context.Response.Body;
+        using var responseBody = new MemoryStream();
+        context.Response.Body = responseBody;
+
+        ExceptionDispatchInfo? edi = null;
+
+        try
+        {
+            await next(context);
+        }
+        catch (Exception ex)
+        {
+            edi = ExceptionDispatchInfo.Capture(ex);
+        }
+        finally
+        {
+            sw.Stop();
+
+            responseBody.Seek(0, SeekOrigin.Begin);
+            var responseText = await new StreamReader(responseBody).ReadToEndAsync();
+
+            logMessage.AppendLine($"*( Response [{context.Response.StatusCode}] ) =>");
+            if (options.ShowFullResponse)
+            {
+                logMessage.Append(responseText);
+            }
+            else
+            {
+                var truncated = responseText.Length > 200 ? responseText[..200] : responseText;
+                logMessage.Append(truncated);
+            }
+
+            if (edi != null)
+            {
+                logMessage.Append(Environment.NewLine);
+                logMessage.Append($"Exception: {edi.SourceException}");
+            }
+
+            responseBody.Seek(0, SeekOrigin.Begin);
+            await responseBody.CopyToAsync(originalBodyStream);
+            context.Response.Body = originalBodyStream;
+
+            log.LogInformation(logMessage.ToString());
+        }
+
+        edi?.Throw();
+    }
+}

SimApiExtensions.cs

@@ -339,6 +339,7 @@ public static class SimApiExtensions
             }
         }
 
+        builder.AddSingleton(simApiOptions.SimApiRequestLogOptions);
         builder.AddSingleton(simApiOptions);
         return builder;
     }
@@ -497,6 +498,12 @@ public static class SimApiExtensions
                 });
         }
 
+        if (options.EnableRequestLog)
+        {
+            logger.LogInformation("开始配置SimApiRequestLog...");
+            builder.UseMiddleware<SimApiRequestLogMiddleware>();
+        }
+
         if (options.EnableSimApiException)
         {
             logger.LogInformation("开始配置SimApiException...");