mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
752 lines
28 KiB
C#
752 lines
28 KiB
C#
using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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using Serein.Library.IOC;
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using Serein.Tool;
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using System.Collections;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Net;
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using System.Reflection;
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using System.Text;
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using System.Web;
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using Enum = System.Enum;
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using Type = System.Type;
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namespace Serein.Library.Http
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{
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/// <summary>
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/// 路由注册与解析
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/// </summary>
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public class Router
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{
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private readonly ConcurrentDictionary<string, bool> _controllerAutoHosting; // 存储是否实例化
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private readonly ConcurrentDictionary<string, Type> _controllerTypes; // 存储控制器类型
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private readonly ConcurrentDictionary<string, object> _controllerInstances; // 存储控制器实例对象
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private readonly ConcurrentDictionary<string, ConcurrentDictionary<string, MethodInfo>> _routes; // 用于存储路由信息
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private readonly IServiceContainer serviceRegistry; // 用于存储路由信息
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//private Type PostRequest;
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public Router(IServiceContainer serviceRegistry) // 构造函数，初始化 Router 类的新实例
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{
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this.serviceRegistry = serviceRegistry;
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_routes = new ConcurrentDictionary<string, ConcurrentDictionary<string, MethodInfo>>(); // 初始化路由字典
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_controllerAutoHosting = new ConcurrentDictionary<string, bool>(); // 初始化控制器实例对象字典
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_controllerTypes = new ConcurrentDictionary<string, Type>(); // 初始化控制器实例对象字典
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_controllerInstances = new ConcurrentDictionary<string, object>(); // 初始化控制器实例对象字典
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foreach (API method in Enum.GetValues(typeof(API))) // 遍历 HTTP 枚举类型的所有值
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{
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_routes.TryAdd(method.ToString(), new ConcurrentDictionary<string, MethodInfo>()); // 初始化每种 HTTP 方法对应的路由字典
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}
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// 获取当前程序集
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Assembly assembly = Assembly.GetExecutingAssembly();
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// 获取包含“Controller”名称的类型
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var controllerTypes = assembly.GetTypes()
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.Where(t => t.Name.Contains("Controller"));
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Type baseAttribute = typeof(AutoHostingAttribute);
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Type baseController = typeof(ControllerBase);
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foreach (var controllerType in controllerTypes)
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{
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if (controllerType.IsSubclassOf(baseController) && controllerType.IsDefined(baseAttribute))
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{
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// 如果属于控制器，并标记了AutoHosting特性，进行自动注册
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AutoRegisterAutoController(controllerType);
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}
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else
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{
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continue;
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}
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}
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}
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/// <summary>
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/// 自动注册 自动实例化控制器 类型
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/// </summary>
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/// <param name="controllerType"></param>
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public void AutoRegisterAutoController(Type controllerType) // 方法声明，用于注册并实例化控制器类型
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{
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if (!controllerType.IsClass || controllerType.IsAbstract) return; // 如果不是类或者是抽象类，则直接返回
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var autoHostingAttribute = controllerType.GetCustomAttribute<AutoHostingAttribute>();
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if (autoHostingAttribute != null) {
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foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
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{
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var apiGetAttribute = method.GetCustomAttribute<ApiGetAttribute>();
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var apiPostAttribute = method.GetCustomAttribute<ApiPostAttribute>();
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if( apiGetAttribute == null && apiPostAttribute == null )
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{
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continue;
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}
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WebApiAttribute webApiAttribute = new WebApiAttribute()
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{
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Type = apiGetAttribute != null ? API.GET : API.POST,
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Url = apiGetAttribute != null ? apiGetAttribute.Url : apiPostAttribute.Url,
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IsUrl = apiGetAttribute != null ? apiGetAttribute.IsUrl : apiPostAttribute.IsUrl,
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};
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if (apiPostAttribute != null) // 如果存在 WebAPIAttribute 属性
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{
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var url = AddRoutesUrl(autoHostingAttribute,
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webApiAttribute,
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controllerType, method);
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Console.WriteLine(url);
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if (url == null) continue;
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_controllerAutoHosting[url] = true;
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_controllerTypes[url] = controllerType;
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_controllerInstances[url] = null;
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}
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/* var routeAttribute = method.GetCustomAttribute<WebApiAttribute>(); // 获取方法上的 WebAPIAttribute 自定义属性
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if (routeAttribute != null) // 如果存在 WebAPIAttribute 属性
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{
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var url = AddRoutesUrl(autoHostingAttribute, routeAttribute, controllerType, method);
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Console.WriteLine(url);
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if (url == null) continue;
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_controllerAutoHosting[url] = true;
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_controllerTypes[url] = controllerType;
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_controllerInstances[url] = null;
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}*/
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}
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}
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}
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/// <summary>
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/// 手动注册 自动实例化控制器实例
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/// </summary>
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public void RegisterAutoController<T>() // 方法声明，用于动态注册路由
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{
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Type controllerType = typeof(T); // 获取控制器实例的类型
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foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
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{
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var apiGetAttribute = method.GetCustomAttribute<ApiGetAttribute>();
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var apiPostAttribute = method.GetCustomAttribute<ApiPostAttribute>();
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if (apiGetAttribute == null && apiPostAttribute == null)
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{
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continue;
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}
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WebApiAttribute webApiAttribute = new WebApiAttribute()
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{
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Type = apiGetAttribute != null ? API.GET : API.POST,
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Url = apiGetAttribute != null ? apiGetAttribute.Url : apiPostAttribute.Url,
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IsUrl = apiGetAttribute != null ? apiGetAttribute.IsUrl : apiPostAttribute.IsUrl,
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};
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var url = AddRoutesUrl(null, webApiAttribute, controllerType, method);
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if (url == null) continue;
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_controllerAutoHosting[url] = true;
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_controllerTypes[url] = controllerType;
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_controllerInstances[url] = null;
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}
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}
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/// <summary>
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/// 手动注册 实例持久控制器实例
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/// </summary>
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/// <param name="controllerInstance"></param>
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public void RegisterController<T>(T controllerInstance) // 方法声明，用于动态注册路由
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{
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if(controllerInstance == null) return;
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Type controllerType = controllerInstance.GetType(); // 获取控制器实例的类型
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foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
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{
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var apiGetAttribute = method.GetCustomAttribute<ApiGetAttribute>();
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var apiPostAttribute = method.GetCustomAttribute<ApiPostAttribute>();
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if (apiGetAttribute == null && apiPostAttribute == null)
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{
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continue;
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}
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WebApiAttribute webApiAttribute = new WebApiAttribute()
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{
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Type = apiGetAttribute != null ? API.GET : API.POST,
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Url = apiGetAttribute != null ? apiGetAttribute.Url : apiPostAttribute.Url,
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IsUrl = apiGetAttribute != null ? apiGetAttribute.IsUrl : apiPostAttribute.IsUrl,
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};
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var url = AddRoutesUrl(null, webApiAttribute, controllerType, method);
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if (url == null) continue;
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_controllerInstances[url] = controllerInstance;
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_controllerAutoHosting[url] = false;
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}
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}
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/// <summary>
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/// 从方法中收集路由信息
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/// </summary>
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/// <param name="controllerType"></param>
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public string AddRoutesUrl(AutoHostingAttribute autoHostingAttribute, WebApiAttribute webAttribute, Type controllerType, MethodInfo method)
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{
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string controllerName;
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if (autoHostingAttribute == null || string.IsNullOrWhiteSpace(autoHostingAttribute.Url))
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{
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controllerName = controllerType.Name.Replace("Controller", "").ToLower(); // 获取控制器名称并转换为小写
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}
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else
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{
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controllerName = autoHostingAttribute.Url;
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}
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var httpMethod = webAttribute.Type; // 获取 HTTP 方法
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var customUrl = webAttribute.Url; // 获取自定义 URL
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string url;
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if (webAttribute.IsUrl)
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{
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if (string.IsNullOrEmpty(customUrl)) // 如果自定义 URL 为空
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{
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url = $"/{controllerName}/{method.Name}".ToLower(); // 构建默认 URL
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}
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else
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{
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customUrl = CleanUrl(customUrl);
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url = $"/{controllerName}/{method.Name}/{customUrl}".ToLower();// 清理自定义 URL，并构建新的 URL
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}
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_routes[httpMethod.ToString()].TryAdd(url, method); // 将 URL 和方法添加到对应的路由字典中
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}
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else
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{
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if (string.IsNullOrEmpty(customUrl)) // 如果自定义 URL 为空
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{
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url = $"/{controllerName}".ToLower(); // 构建默认 URL
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}
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else
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{
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customUrl = CleanUrl(customUrl);
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url = $"/{controllerName}/{customUrl}".ToLower();// 清理自定义 URL，并构建新的 URL
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}
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_routes[httpMethod.ToString()].TryAdd(url, method); // 将 URL 和方法添加到对应的路由字典中
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}
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return url;
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}
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/// <summary>
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/// 收集路由信息
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/// </summary>
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/// <param name="controllerType"></param>
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public void CollectRoutes(Type controllerType)
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{
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string controllerName = controllerType.Name.Replace("Controller", "").ToLower(); // 获取控制器名称并转换为小写
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foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
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{
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var routeAttribute = method.GetCustomAttribute<WebApiAttribute>(); // 获取方法上的 WebAPIAttribute 自定义属性
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if (routeAttribute != null) // 如果存在 WebAPIAttribute 属性
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{
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var customUrl = routeAttribute.Url; // 获取自定义 URL
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string url;
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if (string.IsNullOrEmpty(customUrl)) // 如果自定义 URL 为空
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{
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url = $"/api/{controllerName}/{method.Name}".ToLower(); // 构建默认 URL
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}
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else
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{
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customUrl = CleanUrl(customUrl);
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url = $"/api/{controllerName}/{method.Name}/{customUrl}".ToLower();// 清理自定义 URL，并构建新的 URL
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}
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var httpMethod = routeAttribute.Type; // 获取 HTTP 方法
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_routes[httpMethod.ToString()].TryAdd(url, method); // 将 URL 和方法添加到对应的路由字典中
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}
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}
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}
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/// <summary>
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/// 解析路由，调用对应的方法
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/// </summary>
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/// <param name="context"></param>
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/// <returns></returns>
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public async Task<bool> RouteAsync(HttpListenerContext context)
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{
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var request = context.Request; // 获取请求对象
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var response = context.Response; // 获取响应对象
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var url = request.Url; // 获取请求的 URL
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var httpMethod = request.HttpMethod; // 获取请求的 HTTP 方法
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var template = request.Url.AbsolutePath.ToLower();
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if (!_routes[httpMethod].TryGetValue(template, out MethodInfo method))
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{
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return false;
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}
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var routeValues = GetUrlData(url); // 解析 URL 获取路由参数
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ControllerBase controllerInstance;
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if (!_controllerAutoHosting[template])
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{
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controllerInstance = (ControllerBase)_controllerInstances[template];
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}
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else
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{
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controllerInstance = (ControllerBase)serviceRegistry.Instantiate(_controllerTypes[template]);// 使用反射创建控制器实例
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}
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if (controllerInstance == null)
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{
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return false; // 未找到控制器实例
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}
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controllerInstance.Url = url.AbsolutePath;
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object result;
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switch (httpMethod) // 根据请求的 HTTP 方法执行不同的操作
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{
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case "GET": // 如果是 GET 请求，传入方法、控制器、url参数
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result = InvokeControllerMethodWithRouteValues(method, controllerInstance, routeValues);
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break;
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case "POST": // POST 请求传入方法、控制器、请求体内容，url参数
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var requestBody = await ReadRequestBodyAsync(request); // 读取请求体内容
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controllerInstance.BobyData = requestBody;
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var requestJObject = requestBody.FromJSON<object>();
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result = InvokeControllerMethod(method, controllerInstance, requestJObject, routeValues);
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break;
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default:
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result = null;
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break;
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}
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Return(response, result); // 返回结果
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return true;
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}
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public static string GetLog(string Url, string BobyData = "")
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{
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return Environment.NewLine +
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"Url : " + Url + Environment.NewLine +
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"Data : " + BobyData + Environment.NewLine;
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}
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/// <summary>
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/// GET请求的控制器方法
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/// </summary>
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private object InvokeControllerMethodWithRouteValues(MethodInfo method, object controllerInstance, Dictionary<string, string> routeValues)
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{
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object[] parameters = GetMethodParameters(method, routeValues);
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return InvokeMethod(method, controllerInstance, parameters);
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}
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private static readonly Dictionary<MethodInfo, ParameterInfo[]> methodParameterCache = [];
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/// <summary>
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/// POST请求的调用控制器方法
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/// </summary>
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public object InvokeControllerMethod(MethodInfo method, object controllerInstance, dynamic requestData, Dictionary<string, string> routeValues)
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{
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object?[]? cachedMethodParameters;
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if (!methodParameterCache.TryGetValue(method, out ParameterInfo[] parameters))
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{
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parameters = method.GetParameters();
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}
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cachedMethodParameters = new object[parameters.Length];
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for (int i = 0; i < parameters.Length; i++)
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{
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string? paramName = parameters[i].Name;
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bool isUrlData = parameters[i].GetCustomAttribute(typeof(IsUrlDataAttribute)) != null;
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bool isBobyData = parameters[i].GetCustomAttribute(typeof(IsBobyDataAttribute)) != null;
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if (isUrlData)
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{
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if (!string.IsNullOrEmpty(paramName) && routeValues.TryGetValue(paramName, out string? value))
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{
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cachedMethodParameters[i] = ConvertValue(value, parameters[i].ParameterType);
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}
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else
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{
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cachedMethodParameters[i] = null;
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}
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}
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else if (isBobyData)
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{
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cachedMethodParameters[i] = ConvertValue(requestData.ToString(), parameters[i].ParameterType);
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}
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else
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{
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if (requestData.ContainsKey(paramName))
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{
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if (parameters[i].ParameterType == typeof(string))
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{
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cachedMethodParameters[i] = requestData[paramName].ToString();
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}
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else if (parameters[i].ParameterType == typeof(bool))
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{
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cachedMethodParameters[i] = requestData[paramName?.ToLower()].ToBool();
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}
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else if (parameters[i].ParameterType == typeof(int))
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{
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cachedMethodParameters[i] = requestData[paramName].ToInt();
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}
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else if (parameters[i].ParameterType == typeof(double))
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{
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cachedMethodParameters[i] = requestData[paramName].ToDouble();
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}
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else
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{
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cachedMethodParameters[i] = ConvertValue(requestData[paramName], parameters[i].ParameterType);
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}
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}
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else
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{
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cachedMethodParameters[i] = null;
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}
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}
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}
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// 缓存方法和参数的映射
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//methodParameterCache[method] = cachedMethodParameters;
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// 调用方法
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return method.Invoke(controllerInstance, cachedMethodParameters);
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}
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/// <summary>
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/// 检查方法入参参数类型，返回对应的入参数组
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/// </summary>
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/// <param name="method"></param>
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/// <param name="routeValues"></param>
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/// <returns></returns>
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private object[] GetMethodParameters(MethodInfo method, Dictionary<string, string> routeValues)
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{
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ParameterInfo[] methodParameters = method.GetParameters();
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object[] parameters = new object[methodParameters.Length];
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for (int i = 0; i < methodParameters.Length; i++)
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{
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string paramName = methodParameters[i].Name;
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if (routeValues.TryGetValue(paramName, out string? value))
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{
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parameters[i] = ConvertValue(value, methodParameters[i].ParameterType);
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}
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else
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{
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parameters[i] = null;
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}
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}
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return parameters;
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}
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/*/// <summary>
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/// 转为对应的类型
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/// </summary>
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/// <param name="value"></param>
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/// <param name="targetType"></param>
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/// <returns></returns>
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private object ConvertValue(object value, Type targetType)
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{
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try
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{
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return JsonConvert.DeserializeObject(value.ToString(), targetType);
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}
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catch (JsonReaderException ex)
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{
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return value;
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}
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catch (JsonSerializationException ex)
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{
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// 如果无法转为对应的JSON对象
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int startIndex = ex.Message.IndexOf("to type '") + "to type '".Length; // 查找类型信息开始的索引
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int endIndex = ex.Message.IndexOf("'", startIndex); // 查找类型信息结束的索引
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var typeInfo = ex.Message.Substring(startIndex, endIndex - startIndex); // 提取出错类型信息，该怎么传出去？
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return null;
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}
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catch // (Exception ex)
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{
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return value;
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}
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}*/
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/// <summary>
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/// 转为对应的类型
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/// </summary>
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/// <param name="value"></param>
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/// <param name="targetType"></param>
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/// <returns></returns>
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private object ConvertValue(string value, Type targetType)
|
||
{
|
||
if(targetType == typeof(string))
|
||
{
|
||
return value;
|
||
}
|
||
|
||
try
|
||
{
|
||
|
||
return JsonConvert.DeserializeObject(value.ToString(), targetType);
|
||
|
||
}
|
||
catch (JsonReaderException ex)
|
||
{
|
||
return value;
|
||
}
|
||
catch (JsonSerializationException ex)
|
||
{
|
||
// 如果无法转为对应的JSON对象
|
||
int startIndex = ex.Message.IndexOf("to type '") + "to type '".Length; // 查找类型信息开始的索引
|
||
int endIndex = ex.Message.IndexOf('\''); // 查找类型信息结束的索引
|
||
var typeInfo = ex.Message[startIndex..endIndex]; // 提取出错类型信息，该怎么传出去？
|
||
|
||
return null;
|
||
|
||
}
|
||
catch // (Exception ex)
|
||
{
|
||
return value;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 调用控制器方法传入参数
|
||
/// </summary>
|
||
/// <param name="method">方法</param>
|
||
/// <param name="controllerInstance">控制器实例</param>
|
||
/// <param name="methodParameters">参数列表</param>
|
||
/// <returns></returns>
|
||
private static object InvokeMethod(MethodInfo method, object controllerInstance, object[] methodParameters)
|
||
{
|
||
|
||
object result = null;
|
||
|
||
try
|
||
{
|
||
|
||
result = method?.Invoke(controllerInstance, methodParameters);
|
||
|
||
}
|
||
catch (ArgumentException ex)
|
||
{
|
||
string targetType = ExtractTargetTypeFromExceptionMessage(ex.Message);
|
||
|
||
// 如果方法调用失败
|
||
result = new
|
||
{
|
||
error = $"函数签名类型[{targetType}]不符合",
|
||
};
|
||
}
|
||
catch (JsonSerializationException ex)
|
||
{
|
||
|
||
// 查找类型信息开始的索引
|
||
int startIndex = ex.Message.IndexOf("to type '") + "to type '".Length;
|
||
// 查找类型信息结束的索引
|
||
int endIndex = ex.Message.IndexOf('\'');
|
||
// 提取类型信息
|
||
string typeInfo = ex.Message[startIndex..endIndex];
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
Console.WriteLine(ex.ToString());
|
||
}
|
||
|
||
return result; // 调用方法并返回结果
|
||
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 方法声明，用于解析 URL 获取路由参数
|
||
/// </summary>
|
||
/// <param name="uri"></param>
|
||
/// <returns></returns>
|
||
private static Dictionary<string, string> GetUrlData(Uri uri)
|
||
{
|
||
Dictionary<string, string> routeValues = [];
|
||
|
||
var pathParts = uri.ToString().Split('?'); // 拆分 URL，获取路径部分
|
||
|
||
if (pathParts.Length > 1) // 如果包含查询字符串
|
||
{
|
||
var queryParams = HttpUtility.ParseQueryString(pathParts[1]); // 解析查询字符串
|
||
|
||
foreach (string key in queryParams) // 遍历查询字符串的键值对
|
||
{
|
||
if (key == null) continue;
|
||
|
||
routeValues[key] = queryParams[key]; // 将键值对添加到路由参数字典中
|
||
|
||
}
|
||
}
|
||
|
||
return routeValues; // 返回路由参数字典
|
||
}
|
||
|
||
/// <summary>
|
||
/// 读取Body中的消息
|
||
/// </summary>
|
||
/// <param name="request"></param>
|
||
/// <returns></returns>
|
||
private static async Task<string> ReadRequestBodyAsync(HttpListenerRequest request)
|
||
{
|
||
using Stream stream = request.InputStream;
|
||
using StreamReader reader = new(stream, Encoding.UTF8);
|
||
return await reader.ReadToEndAsync();
|
||
}
|
||
/// <summary>
|
||
/// 返回响应消息
|
||
/// </summary>
|
||
/// <param name="response"></param>
|
||
/// <param name="msg"></param>
|
||
private static void Return(HttpListenerResponse response, dynamic msg)
|
||
{
|
||
string resultData;
|
||
if (response != null)
|
||
{
|
||
try
|
||
{
|
||
if (msg is IEnumerable && msg is not string)
|
||
{
|
||
// If msg is a collection (e.g., array or list), serialize it as JArray
|
||
resultData = JArray.FromObject(msg).ToString();
|
||
}
|
||
else
|
||
{
|
||
// Otherwise, serialize it as JObject
|
||
resultData = JObject.FromObject(msg).ToString();
|
||
}
|
||
byte[] buffer = Encoding.UTF8.GetBytes(resultData);
|
||
response.ContentLength64 = buffer.Length;
|
||
response.OutputStream.Write(buffer, 0, buffer.Length);
|
||
}
|
||
catch
|
||
{
|
||
// If serialization fails, use the original message's string representation
|
||
resultData = msg.ToString();
|
||
}
|
||
|
||
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 解析JSON
|
||
/// </summary>
|
||
/// <param name="requestBody"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="Exception"></exception>
|
||
private static dynamic ParseJson(string requestBody)
|
||
{
|
||
try
|
||
{
|
||
if (string.IsNullOrWhiteSpace(requestBody))
|
||
{
|
||
throw new Exception("Invalid JSON format");
|
||
}
|
||
return JObject.Parse(requestBody);
|
||
}
|
||
catch
|
||
{
|
||
throw new Exception("Invalid JSON format");
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 修正方法特性中的URL格式
|
||
/// </summary>
|
||
/// <param name="url"></param>
|
||
/// <returns></returns>
|
||
private static string CleanUrl(string url)
|
||
{
|
||
|
||
while (url.Length > 0 && url[0] == '/') // 去除开头的斜杠
|
||
{
|
||
url = url[1..];
|
||
}
|
||
|
||
while (url.Length > 0 && url[^1] == '/') // 去除末尾的斜杠
|
||
{
|
||
url = url[..^1];
|
||
}
|
||
|
||
for (int i = 0; i < url.Length - 1; i++) // 去除连续的斜杠
|
||
{
|
||
if (url[i] == '/' && url[i + 1] == '/')
|
||
{
|
||
url = url.Remove(i, 1);
|
||
i--;
|
||
}
|
||
}
|
||
|
||
return url; // 返回清理后的 URL
|
||
}
|
||
/// <summary>
|
||
/// 从控制器调用方法的异常中获取出出错类型的信息
|
||
/// </summary>
|
||
/// <param name="errorMessage"></param>
|
||
/// <returns></returns>
|
||
public static string ExtractTargetTypeFromExceptionMessage(string errorMessage)
|
||
{
|
||
string targetText = "为类型“";
|
||
int startIndex = errorMessage.IndexOf(targetText);
|
||
if (startIndex != -1)
|
||
{
|
||
startIndex += targetText.Length;
|
||
int endIndex = errorMessage.IndexOf('\'');
|
||
if (endIndex != -1)
|
||
{
|
||
return errorMessage[startIndex..endIndex];
|
||
}
|
||
}
|
||
|
||
|
||
return null;
|
||
|
||
}
|
||
}
|
||
}
|
||
|
