C# Code:

[RunInstaller(true)]
public partial class ProjectInstaller : System.Configuration.Install.Installer
{
   public ProjectInstaller()
   {
      InitializeComponent();
      
      serviceInstaller1.ServiceName = "CSFramework.WebAPI.Demo.WinServiceHosting";
      serviceInstaller1.DisplayName = "CSFramework.WebAPI服务器";
      serviceInstaller1.Description = "CSFramework.WebAPI服务器，Windows服务承载(Hosting)";
   }
}

//来源:C/S框架网(www.csframework.com) QQ:23404761

C# Code:

public class StartupAppBuilder
{
   public static void Configuration(IAppBuilder appBuilder)
   {
      // 在应用程序启动时运行的代码
      
      //加载WebApi服务器配置信息
      HttpConfiguration config = new HttpConfiguration();
      
      //配置路由
      var cors = new EnableCorsAttribute("*", "*", "*");
      config.EnableCors(cors);
      config.MapHttpAttributeRoutes();
      
      config.Routes.MapHttpRoute(
      name: "ActionApi",
      routeTemplate: "api/{controller}/{action}/{id}",
      defaults: new { id = RouteParameter.Optional });
      
      Log2Local.Instance.WriteInfo("配置JSON格式化.");
      //NuGet: Microsoft.Owin.Hosting;
      GlobalConfiguration.Configuration.Formatters.Insert(0, new PlainTextTypeFormatter());
      
      config.Formatters.JsonFormatter.SerializerSettings.Formatting = Newtonsoft.Json.Formatting.Indented;
      config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
      config.Formatters.JsonFormatter.SerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm";
      config.Formatters.JsonFormatter.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
      config.Formatters.Remove(config.Formatters.XmlFormatter);
      
      // 解决json序列化时的循环引用问题
      config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
      
      // 对 JSON 数据使用混合大小写。驼峰式,但是是javascript 首字母小写形式.
      //config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
      
      // 对 JSON 数据使用混合大小写。跟属性名同样的大小.输出
      config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new UnderlineSplitContractResolver();
      
      Log2Local.Instance.WriteInfo("添加消息监听处理器.");
      config.MessageHandlers.Add(new RequestListenHandler(Log2Local.Instance));
      
      
      //使用配置
      appBuilder.UseWebApi(config);
      appBuilder.UseStageMarker(PipelineStage.PostAcquireState);
      
      //链接控制器
      Type C1 = typeof(CSFramework.WebAPI.Demo.DemoController);
      
      Log2Local.Instance.WriteInfo("配置完成.");
   }
   
}

//来源:C/S框架网(www.csframework.com) QQ:23404761

C# Code:

/// <summary>
/// 监听WebAPI服务器所有请求.
/// </summary>
public class RequestListenHandler : DelegatingHandler
{
   protected Log2Local _log;
   
   public RequestListenHandler(Log2Local log)
   {
      _log = log;
   }
   
   protected override System.Threading.Tasks.Task<HttpResponseMessage> SendAsync(
   HttpRequestMessage request, System.Threading.CancellationToken cancellationToken)
   {
      //注意：若Request.Method=POST,不可读取Request.Body流(Stream)信息,一旦读取，会销毁Stream对象。
      //Method=GET,读取RequestUri
      
      //控制台显示请求的URI信息
      _log.WriteInfo("收到请求:" + request.RequestUri);
      
      //调用WebAPI控制器接口完毕，才执行下面的代码
      return base.SendAsync(request, cancellationToken).ContinueWith((task) =>
      {
         //添加日志
         _log.WriteInfo("StatusCode:" + (task.Result as HttpResponseMessage).StatusCode.ToString());
         
         return task.Result;
         });
      }
   }
   
   //来源:C/S框架网(www.csframework.com) QQ:23404761