diff --git a/build/releasenotes.props b/build/releasenotes.props
index 3ca74df..af40d41 100644
--- a/build/releasenotes.props
+++ b/build/releasenotes.props
@@ -1,7 +1,7 @@
 <Project>
 	<PropertyGroup>
 		<DotXxlJobPackageNotes>
-		1. 修正TriggerParam类中logId的类型和admin 不一致的问题
+		1. 修改异步方式读取RequestBody
 		</DotXxlJobPackageNotes> 		
 	</PropertyGroup>
 </Project>
diff --git a/build/version.props b/build/version.props
index 718b186..5a36b1a 100644
--- a/build/version.props
+++ b/build/version.props
@@ -1,5 +1,5 @@
 <Project>
 	<PropertyGroup>
-		<DotXxlJobPackageVersion>2.0.1</DotXxlJobPackageVersion>	
+		<DotXxlJobPackageVersion>2.0.2</DotXxlJobPackageVersion>
 	</PropertyGroup>
 </Project>
diff --git a/samples/ASPNetCoreExecutor/ASPNetCoreExecutor.csproj b/samples/ASPNetCoreExecutor/ASPNetCoreExecutor.csproj
index 0562725..6f62e05 100644
--- a/samples/ASPNetCoreExecutor/ASPNetCoreExecutor.csproj
+++ b/samples/ASPNetCoreExecutor/ASPNetCoreExecutor.csproj
@@ -1,11 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
     <PropertyGroup>
-        <TargetFramework>netcoreapp2.2</TargetFramework>     
+        <TargetFramework>netcoreapp3.1</TargetFramework>     
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.AspNetCore.App" />
         <PackageReference Include="Microsoft.Extensions.Logging.Console">
           <Version>2.2.0</Version>
         </PackageReference>       
diff --git a/samples/ASPNetCoreExecutor/Extensions/XxlJobExecutorMiddleware.cs b/samples/ASPNetCoreExecutor/Extensions/XxlJobExecutorMiddleware.cs
index dea4386..a02166b 100644
--- a/samples/ASPNetCoreExecutor/Extensions/XxlJobExecutorMiddleware.cs
+++ b/samples/ASPNetCoreExecutor/Extensions/XxlJobExecutorMiddleware.cs
@@ -30,9 +30,9 @@ namespace ASPNetCoreExecutor
                 && !string.IsNullOrEmpty(contentType)
                 && contentType.ToLower().StartsWith("application/json"))
             {
-            
+
                 await _rpcService.HandlerAsync(context.Request,context.Response);              
-            
+
                 return;
             }
             
diff --git a/samples/ASPNetCoreExecutor/Startup.cs b/samples/ASPNetCoreExecutor/Startup.cs
index 1ae88f9..66735ee 100644
--- a/samples/ASPNetCoreExecutor/Startup.cs
+++ b/samples/ASPNetCoreExecutor/Startup.cs
@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.AspNetCore.Server.Kestrel.Core;
 
 namespace ASPNetCoreExecutor
 {
@@ -27,12 +28,16 @@ namespace ASPNetCoreExecutor
             services.AddSingleton<IJobHandler, DemoJobHandler>(); // 添加自定义的jobHandler
             
             services.AddAutoRegistry(); // 自动注册
+
+
+            //services.Configure<KestrelServerOptions>(x => x.AllowSynchronousIO = true)
+            //    .Configure<IISServerOptions>(x=> x.AllowSynchronousIO = true);
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app,IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app,IWebHostEnvironment env)
         {
-            if (env.IsDevelopment())
+            if (env.EnvironmentName !="Production")
             {
                 app.UseDeveloperExceptionPage();
             }
diff --git a/src/DotXxlJob.Core/XxlRestfulServiceHandler.cs b/src/DotXxlJob.Core/XxlRestfulServiceHandler.cs
index 4615549..a068c15 100644
--- a/src/DotXxlJob.Core/XxlRestfulServiceHandler.cs
+++ b/src/DotXxlJob.Core/XxlRestfulServiceHandler.cs
@@ -65,7 +65,7 @@ namespace DotXxlJob.Core
             }
             try
             {
-                string json = CollectBody(request.Body);
+                string json = await CollectBody(request.Body);
                 switch (method)
                 {
                     case "beat":
@@ -99,12 +99,12 @@ namespace DotXxlJob.Core
             response.ContentType = "application/json;charset=utf-8";
             await response.WriteAsync(JsonConvert.SerializeObject(ret));           
         }
-        private string CollectBody(Stream body)
+        private async Task<string> CollectBody(Stream body)
         {
             string bodyText;
             using (var reader = new StreamReader(body))
             {
-                bodyText = reader.ReadToEnd();
+                bodyText = await reader.ReadToEndAsync();
             }
             return bodyText;
         }