标签:字符串 and itop .net 空间 很多 eem oid ndt
版本控制
版本控制的方法有很多,这里提供一种将Odata与普通web api版本控制机制统一的方法,但也可以单独控制,整合控制与单独控制主要的不同是:整合控制通过VersionControllerSelector来选择控制器过滤器,而不是直接选择控制器。
采用此机制来控制版本,应按照如下规则命名控制器:
自定义标识符+版本+Controller
自定义标识符:能体现控制器含义的字符串
版本:表示版本的字符串,例如:V1,V1.0;不建议使用V1.0这样的写法,因为这样控制器名称会相当怪异,如果表示小版本号,那么可以使用V1D0,这种写法,即用一个字母代替句号。
命名空间对应了项目文件的组织形式,控制器的命名空间为:
1 Odata版本控制
扩展DefaultHttpControllerSelector
public class ODataVersionControllerSelector : DefaultHttpControllerSelector { public Dictionary<string, string> RouteVersionSuffixMapping { get; set; } public ODataVersionControllerSelector(HttpConfiguration configuration) : base(configuration) { if (RouteVersionSuffixMapping == null) { RouteVersionSuffixMapping = new Dictionary<string, string>(); } } public override string GetControllerName(HttpRequestMessage request) { var controllerName = base.GetControllerName(request); if (string.IsNullOrEmpty(controllerName)) { return controllerName; } var routeName = request.ODataProperties().RouteName; if (string.IsNullOrEmpty(routeName)) { return controllerName; } var mapping = GetControllerMapping(); if (!RouteVersionSuffixMapping.ContainsKey(routeName)) { return controllerName; } var versionControllerName = controllerName + RouteVersionSuffixMapping[routeName]; return mapping.ContainsKey(versionControllerName) ? versionControllerName : controllerName; } }
修改WebApiConfig.Register方法
public static class WebApiConfig { public static void Register(HttpConfiguration config) { ...... //odata路由 config.MapODataServiceRoute( routeName: "V1OdataRouteVersioning", routePrefix: "Odata/V1", model: GetEdmModel()); config.Count().Filter().OrderBy().Expand().Select().MaxTop(null); config.AddODataQueryFilter(); config.Services.Replace(typeof(IHttpControllerSelector), new ODataVersionControllerSelector (config)); var controllerSelector = config.Services.GetService(typeof(IHttpControllerSelector)) as ODataVersionControllerSelector ; controllerSelector.RouteVersionSuffixMapping.Add("V1OdataRouteVersioning", "V1"); ...... } } private static IEdmModel GetEdmModel() { ODataConventionModelBuilder builder = new ODataConventionModelBuilder(); #region Publication var publicationsSet = builder.EntitySet<Publication>("Publications").EntityType.Collection; var getPublicationsFunction = publicationsSet.Function("GetPublications").Returns<PublicationDTO>(); getPublicationsFunction.Parameter<int>("userId"); publicationsSet.Action("AddPublication").Returns<int>().Parameter<PublicationAddBindingModel>("publicationAddBM"); publicationsSet.Action("DeletePublication").Returns<IHttpActionResult>().Parameter<PublicationDelBindingModel>("publicationDelBM"); #endregion builder.Namespace = "Service"; return builder.GetEdmModel(); }
2 普通Api版本控制
扩展IHttpControllerSelector
public class NormalVersionControllerSelector : IHttpControllerSelector { private const string Version = "version"; private const string ControllerKey = "controller"; private readonly HttpConfiguration _configuration; private readonly Lazy<Dictionary<string, HttpControllerDescriptor>> _controllers; private readonly HashSet<string> _duplicates; public NormalVersionControllerSelector(HttpConfiguration config) { _configuration = config; _duplicates = new HashSet<string>(StringComparer.OrdinalIgnoreCase); _controllers = new Lazy<Dictionary<string, HttpControllerDescriptor>>(InitializeControllerDictionary); } private Dictionary<string, HttpControllerDescriptor> InitializeControllerDictionary() { var dictionary = new Dictionary<string, HttpControllerDescriptor>(StringComparer.OrdinalIgnoreCase); IAssembliesResolver assembliesResolver = _configuration.Services.GetAssembliesResolver(); IHttpControllerTypeResolver controllersResolver = _configuration.Services.GetHttpControllerTypeResolver(); ICollection<Type> controllerTypes = controllersResolver.GetControllerTypes(assembliesResolver); foreach (Type t in controllerTypes) { var segments = t.Namespace.Split(Type.Delimiter); //去掉HY_WebApi.V1.Controllers.KeyController中的HY_WebApi. //去掉HY_WebApi.HYDB.V1.Controllers.HYSearchController中的HY_WebApi.HYDB. //因此,保留V1.Controllers.KeyController这三部分 //键值格式如:V1.Controllers.KeyController string[] items = t.FullName.Split(new char[]{‘.‘},StringSplitOptions.RemoveEmptyEntries); int count = items.Count(); var key = string.Format("{0}.{1}.{2}", items[count - 3], items[count - 2], items[count - 1]); // Check for duplicate keys. if (dictionary.ContainsKey(key)) { _duplicates.Add(key); } else { dictionary[key] = new HttpControllerDescriptor(_configuration, t.Name, t); } } return dictionary; } // Get a value from the route data, if present. private static T GetRouteVariable<T>(IHttpRouteData routeData, string name) { object result = null; if (routeData.Values.TryGetValue(name, out result)) { return (T)result; } return default(T); } public HttpControllerDescriptor SelectController(HttpRequestMessage request) { IHttpRouteData routeData = request.GetRouteData(); if (routeData == null) { throw new HttpResponseException(HttpStatusCode.NotFound); } // Get the namespace and controller variables from the route data. string version = GetRouteVariable<string>(routeData, Version); if (version == null) { throw new HttpResponseException(HttpStatusCode.NotFound); } string controllerName = GetRouteVariable<string>(routeData, ControllerKey); if (controllerName == null) { throw new HttpResponseException(HttpStatusCode.NotFound); } // 匹配控制器 string key = String.Format("{0}.Controllers.{1}{2}Controller", version, controllerName,version); HttpControllerDescriptor controllerDescriptor; if (_controllers.Value.TryGetValue(key, out controllerDescriptor)) { return controllerDescriptor; } else if (_duplicates.Contains(key)) { throw new HttpResponseException( request.CreateErrorResponse(HttpStatusCode.InternalServerError, "Multiple controllers were found that match this request.")); } else { throw new HttpResponseException(HttpStatusCode.NotFound); } } public IDictionary<string, HttpControllerDescriptor> GetControllerMapping() { return _controllers.Value; } } }
修改WebApiConfig.Register方法
public static class WebApiConfig { public static void Register(HttpConfiguration config) { ...... // Web API 路由 config.Routes.MapHttpRoute( name: "defaultRoute", routeTemplate: "api/{version}/{controller}/{action}/{id}", defaults: new { id = RouteParameter.Optional } ); config.Services.Replace(typeof(IHttpControllerSelector), new NormalVersionControllerSelector(config)); ...... } }
3 同时支持Odata,与普通Web Api版本控制
扩展DefaultHttpControllerSelector
public class VersionControllerSelector : DefaultHttpControllerSelector { public Dictionary<string, string> RouteVersionSuffixMapping { get; set; } private HttpConfiguration configuration; public VersionControllerSelector(HttpConfiguration configuration) : base(configuration) { this.configuration = configuration; if (RouteVersionSuffixMapping == null) { RouteVersionSuffixMapping = new Dictionary<string, string>(); } } public override string GetControllerName(HttpRequestMessage request) { return SelectController(request).ControllerName; } public override HttpControllerDescriptor SelectController(HttpRequestMessage request) { var routeName = request.ODataProperties().RouteName; if (!string.IsNullOrWhiteSpace(routeName)) {//odata路由 var selector = new ODataVersionControllerSelector(configuration); selector.RouteVersionSuffixMapping = RouteVersionSuffixMapping; return selector.SelectController(request); } else {//普通路由 var selector = new NormalVersionControllerSelector(configuration); return selector.SelectController(request); } } } 修改WebApiConfig.Register方法 public static class WebApiConfig public static void Register(HttpConfiguration config) { // Web API 路由 config.Routes.MapHttpRoute( name: "defaultRoute", routeTemplate: "api/{version}/{controller}/{action}/{id}", defaults: new { id = RouteParameter.Optional } ); //odata路由 config.MapODataServiceRoute( routeName: "V1OdataRouteVersioning", routePrefix: "Odata/V1", model: GetEdmModel()); config.Count().Filter().OrderBy().Expand().Select().MaxTop(null); config.AddODataQueryFilter(); config.Services.Replace(typeof(IHttpControllerSelector), new VersionControllerSelector(config)); var controllerSelector = config.Services.GetService(typeof(IHttpControllerSelector)) as VersionControllerSelector; controllerSelector.RouteVersionSuffixMapping.Add("V1OdataRouteVersioning", "V1"); } }
其中GetEdmModel()方法与前述方法相同。
标签:字符串 and itop .net 空间 很多 eem oid ndt
原文地址:http://www.cnblogs.com/hdwgxz/p/7856619.html