Add UseHybridSerializer to AbpJsonOptions.

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Json/MvcCoreBuilderExtensions.cs

@@ -8,6 +8,7 @@ using Microsoft.Extensions.Options;
 using System.Text.Encodings.Web;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.ObjectPool;
+using Volo.Abp.Json;
 
 namespace Volo.Abp.AspNetCore.Mvc.Json
 {
@@ -15,6 +16,14 @@ namespace Volo.Abp.AspNetCore.Mvc.Json
     {
         public static IMvcCoreBuilder AddAbpHybridJson(this IMvcCoreBuilder builder)
         {
+            var abpJsonOptions = builder.Services.ExecutePreConfiguredActions<AbpJsonOptions>();
+            if (!abpJsonOptions.UseHybridSerializer)
+            {
+                builder.Services.TryAddEnumerable(ServiceDescriptor.Transient<IConfigureOptions<MvcNewtonsoftJsonOptions>, AbpMvcNewtonsoftJsonOptionsSetup>());
+                builder.AddNewtonsoftJson();
+                return builder;
+            }
+
             //SystemTextJsonInputFormatter
             builder.Services.AddTransient(provider =>
             {

framework/src/Volo.Abp.Json/Volo/Abp/Json/AbpJsonModule.cs

@@ -19,7 +19,12 @@ namespace Volo.Abp.Json
             Configure<AbpJsonOptions>(options =>
             {
                 options.Providers.Add<AbpNewtonsoftJsonSerializerProvider>();
-                options.Providers.Add<AbpSystemTextJsonSerializerProvider>();
+
+                var abpJsonOptions = context.Services.ExecutePreConfiguredActions<AbpJsonOptions>();
+                if (abpJsonOptions.UseHybridSerializer)
+                {
+                    options.Providers.Add<AbpSystemTextJsonSerializerProvider>();
+                }
             });
 
             Configure<AbpNewtonsoftJsonSerializerOptions>(options =>

framework/src/Volo.Abp.Json/Volo/Abp/Json/AbpJsonOptions.cs

@@ -1,4 +1,5 @@
 using Volo.Abp.Collections;
+using Volo.Abp.Json.SystemTextJson;
 
 namespace Volo.Abp.Json
 {
@@ -9,11 +10,19 @@ namespace Volo.Abp.Json
         /// </summary>
         public string DefaultDateTimeFormat { get; set; }
 
+        /// <summary>
+        /// It will try to use System.Json.Text to handle JSON if it can otherwise use Newtonsoft.
+        /// Affects both AbpJsonModule and AbpAspNetCoreMvcModule.
+        /// See <see cref="AbpSystemTextJsonUnsupportedTypeMatcher"/>
+        /// </summary>
+        public bool UseHybridSerializer { get; set; }
+
         public ITypeList<IJsonSerializerProvider> Providers { get; }
 
         public AbpJsonOptions()
         {
             Providers = new TypeList<IJsonSerializerProvider>();
+            UseHybridSerializer = true;
         }
     }
 }