diff --git a/src/Shentun.WebPeis.HttpApi.Host/WebPeisHttpApiHostModule.cs b/src/Shentun.WebPeis.HttpApi.Host/WebPeisHttpApiHostModule.cs
index 44ecdce..462c5ae 100644
--- a/src/Shentun.WebPeis.HttpApi.Host/WebPeisHttpApiHostModule.cs
+++ b/src/Shentun.WebPeis.HttpApi.Host/WebPeisHttpApiHostModule.cs
@@ -49,6 +49,8 @@ using static Org.BouncyCastle.Math.EC.ECCurve;
 using System.Security.Cryptography.X509Certificates;
 using Microsoft.Extensions.Hosting.Internal;
 using Microsoft.IdentityModel.Tokens;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Features;
 
 namespace Shentun.WebPeis;
 
@@ -159,7 +161,7 @@ public class WebPeisHttpApiHostModule : AbpModule
         {
             x.JsonSerializerOptions.PropertyNameCaseInsensitive = true;
         });
-      
+
         context.Services.AddOptions<AbpOpenIddictExtensionGrantsOptions>()
             .Configure<IServiceProvider>((options, serviceProvider) =>
         {
@@ -168,7 +170,7 @@ public class WebPeisHttpApiHostModule : AbpModule
 
 
 
-       
+
 
         //Configure<OpenIddictServerAspNetCoreBuilder>(configure =>
         //{
@@ -189,7 +191,7 @@ public class WebPeisHttpApiHostModule : AbpModule
 
     private void ConfigureAuthentication(ServiceConfigurationContext context)
     {
-       
+
         context.Services.ForwardIdentityAuthenticationForBearer(OpenIddictValidationAspNetCoreDefaults.AuthenticationScheme);
         context.Services.Configure<AbpClaimsPrincipalFactoryOptions>(options =>
         {
@@ -293,7 +295,7 @@ public class WebPeisHttpApiHostModule : AbpModule
 
     public override void OnApplicationInitialization(ApplicationInitializationContext context)
     {
-       
+
 
         var app = context.GetApplicationBuilder();
         var env = context.GetEnvironment();
@@ -310,6 +312,17 @@ public class WebPeisHttpApiHostModule : AbpModule
             app.UseErrorPage();
         }
 
+
+        //post大小限制
+        app.UseWhen(ct => ct.Request.Method == HttpMethods.Post,
+              builder => builder.UseWhen(ct => true, appBuilder =>
+                  appBuilder.Use((ct, next) =>
+                  {
+                      ct.Features.Get<IHttpMaxRequestBodySizeFeature>().MaxRequestBodySize = 50 * 1024 * 1024; // 10MB
+                      return next();
+                  })));
+
+
         app.UseCorrelationId();
         app.UseStaticFiles();
         //虚拟目录