通过NuGet获取Zaabee.AspNetCoreProtobuf
Install-Package Zaabee.AspNetCoreProtobuf在Startup.cs文件中修改ConfigureServices方法
public void ConfigureServices(IServiceCollection services) { services.AddMvc(options => { options.AddProtobufSupport(); }); }搞掂……这时候你就可以通过application/x-protobuf的content-type来让asp.net core使用protobuf来进行序列化/反序列化。
测试代码在asp.net core项目中添加以下DTO
[ProtoContract] public class TestDto { [ProtoMember(1)] public Guid Id { get; set; } [ProtoMember(2)] public string Name { get; set; } [ProtoMember(3)] public DateTime CreateTime { get; set; } [ProtoMember(4)] public List<TestDto> Kids { get; set; } [ProtoMember(5)] public long Tag { get; set; } [ProtoMember(6)] public TestEnum Enum { get; set; } } public enum TestEnum { Apple, Banana, Pear }新建一个XUnit项目,通过Nuget引用Microsoft.AspNetCore.TestHost,建立一个测试类
public class AspNetCoreProtobufTest { private readonly TestServer _server; private readonly HttpClient _client; public AspNetCoreProtobufTest() { _server = new TestServer( new WebHostBuilder() .UseKestrel() .UseStartup<Startup>()); _client = _server.CreateClient(); } [Fact] public void Test() { // HTTP Post with Protobuf Response Body _client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/x-protobuf")); var dtos = GetDtos(); var stream = new MemoryStream(); ProtoBuf.Serializer.Serialize(stream, dtos); HttpContent httpContent = new StreamContent(stream); // HTTP POST with Protobuf Request Body var responseForPost = _client.PostAsync("api/Values", httpContent); var result = ProtoBuf.Serializer.Deserialize<List<TestDto>>( responseForPost.Result.Content.ReadAsStreamAsync().Result); Assert.True(CompareDtos(dtos,result)); } private static bool CompareDtos(List<TestDto> lstOne, List<TestDto> lstTwo) { lstOne = lstOne ?? new List<TestDto>(); lstTwo = lstTwo ?? new List<TestDto>(); if (lstOne.Count != lstTwo.Count) return false; for (var i = 0; i < lstOne.Count; i++) { var dtoOne = lstOne[i]; var dtoTwo = lstTwo[i]; if (dtoOne.Id != dtoTwo.Id || dtoOne.CreateTime != dtoTwo.CreateTime || dtoOne.Enum != dtoTwo.Enum || dtoOne.Name != dtoTwo.Name || dtoOne.Tag != dtoTwo.Tag || !CompareDtos(dtoOne.Kids, dtoTwo.Kids)) return false; } return true; } private static List<TestDto> GetDtos() { return new List<TestDto> { new TestDto { Id = Guid.NewGuid(), Tag = long.MaxValue, CreateTime = DateTime.Now, Name = "0", Enum = TestEnum.Apple, Kids = new List<TestDto> { new TestDto { Id = Guid.NewGuid(), Tag = long.MaxValue - 1, CreateTime = DateTime.Now, Name = "00", Enum = TestEnum.Banana }, new TestDto { Id = Guid.NewGuid(), Tag = long.MaxValue - 2, CreateTime = DateTime.Now, Name = "01", Enum = TestEnum.Pear } } }, new TestDto { Id = Guid.NewGuid(), Tag = long.MaxValue - 3, CreateTime = DateTime.Now, Name = "1", Enum = TestEnum.Apple, Kids = new List<TestDto> { new TestDto { Id = Guid.NewGuid(), Tag = long.MaxValue - 4, CreateTime = DateTime.Now, Name = "10", https://i.cnblogs.com/EditCategories.aspx?catid=1 Enum = TestEnum.Banana }, new TestDto { Id = Guid.NewGuid(), Tag = long.MaxValue - 5, CreateTime = DateTime.Now, Name = "11", Enum = TestEnum.Pear } } } }; } } 为什么要用protobuf?因为快……在我们这边使用业务数据的测试中,protobuf的序列化/反序列化性能大概是Json.net的三倍,序列化后的体积大概只有Json的二分之一,这可以在相当程度上提高webapi的吞吐性能。
protobuf的缺点DTO层必须引用protobuf-net来添加特性,这在一定程度上导致了代码的侵入。基本上DTO属于POCO,依赖第三方包的话总觉得有点不贞洁……另外就是protobuf序列化后的数据不具有可视化,因此如果是使用消息队列或者请求监控的地方,就要综合考虑protobuf是否适合使用场景。
原理asp.net core是基于中间件方式来实现,其自带默认的JsonFormater(基于Json.net),asp.net core会根据content type来选择对应的Formater来处理对象的序列化,当中包括InputFormatter(反序列化)和OutputFormatter(序列化)。因此除了protobuf,我们还可以添加或者替换其它的序列化方式,例如使用Jil来代替Json.net来提高Json性能。
以上实现以及Demo和测试的源代码已放到GitHub上。
最后给大家拜个晚年,祝大家新年快乐~