在Web Api中集成protobuf

2018-06-22 07:43:26来源：未知阅读 ()

安装WebApiContrib.Formatting.ProtoBuf
1. Install-Package WebApiContrib.Formatting.ProtoBuf

注册ProtoBufFormatter

public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            config.Formatters.Add(new ProtoBufFormatter());
            // Web API configuration and services

            // Web API routes
            config.MapHttpAttributeRoutes();

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );
        }
    }

设置DTO

注意这里的Order是必须的

 [DataContract]
    public class Item
    {
        [DataMember(Order = 1)]
        public int Id { get; set; }
        [DataMember(Order = 2)]
        public string Name { get; set; }
        [DataMember(Order = 3)]
        public long Value { get; set; }
    }

客户端调用

      static  void Main(string[] args)
        {
      
            var httpClient = new HttpClient();
         
            httpClient.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/x-protobuf"));

            var response = httpClient.GetAsync("http://localhost:60339/api/Default/GetItem").Result;
            //把 ProtoBuf Stream 反序列化成 集合
            var  obj = (RuntimeTypeModel.Default).Deserialize(response.Content.ReadAsStreamAsync().Result, null, typeof(List<Item>)) as List<Item>;
            
            Console.WriteLine(obj.Count);

            //设置请求头
            var content = new ObjectContent<List<Item>>(obj, new ProtoBufFormatter());
            content.Headers.ContentType = new MediaTypeHeaderValue("application/x-protobuf");

            var postResponse1=  httpClient.PostAsync("http://localhost:60339/api/Default/PostItem", content).Result;
            var postResult = postResponse1.Content.ReadAsStreamAsync().Result;
            var intValue = (RuntimeTypeModel.Default).Deserialize(postResult, null, typeof(int));

            Console.WriteLine(intValue);
            Console.ReadKey();
        }

使用Fiddler发送Accept 分别为Json,Xml,Protobuf三种格式来请求数据