Merge pull request #21790 from abpframework/auto-merge/rel-9-0/3345

Merge branch dev with rel-9.0

framework/src/Volo.Abp.AspNetCore/Microsoft/AspNetCore/Builder/AbpApplicationBuilderExtensions.cs

@@ -177,6 +177,22 @@ public static class AbpApplicationBuilderExtensions
             throw new AbpException("The app(IApplicationBuilder) is not an IEndpointRouteBuilder.");
         }
 
+        var environment = endpoints.ServiceProvider.GetRequiredService<IWebHostEnvironment>();
+        if (environment.IsDevelopment())
+        {
+            // MapStaticAssets in development mode will have a performance issue if there are many static files.
+            // https://github.com/dotnet/aspnetcore/issues/59673
+            app.UseStaticFiles();
+
+            // Volo.Abp.AspNetCore.staticwebassets.endpoints.json is an empty file. Just compatible with the return type of MapAbpStaticAssets.
+            var tempStaticAssetsManifestPath = Path.Combine(AppContext.BaseDirectory, "Volo.Abp.AspNetCore.staticwebassets.endpoints.json");
+            if (!File.Exists(tempStaticAssetsManifestPath))
+            {
+                File.WriteAllText(tempStaticAssetsManifestPath, "{\"Version\":1,\"ManifestType\":\"Build\",\"Endpoints\":[]}");
+            }
+            return endpoints.MapStaticAssets(tempStaticAssetsManifestPath);
+        }
+
         var options = app.ApplicationServices.GetRequiredService<IOptions<AbpAspNetCoreContentOptions>>().Value;
         foreach (var folder in options.AllowedExtraWebContentFolders)
         {