mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
666 lines
26 KiB
C#
666 lines
26 KiB
C#
using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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using Serein.Library.Api;
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using Serein.Library.Attributes;
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using System;
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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.IO;
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using System.Linq;
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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.Threading.Tasks;
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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.Web
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{
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public interface IRouter
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{
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bool RegisterController(Type controllerType);
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Task ProcessingAsync(HttpListenerContext context);
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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 : IRouter
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{
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/// <summary>
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/// 控制器实例对象的类型，每次调用都会重新实例化，[Url - ControllerType]
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/// </summary>
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private readonly ConcurrentDictionary<string, Type> _controllerTypes; // 存储控制器类型
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/// <summary>
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/// 用于存储路由信息，[GET|POST - [Url - Method]]
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/// </summary>
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private readonly ConcurrentDictionary<string, ConcurrentDictionary<string, MethodInfo>> _routes;
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[AutoInjection]
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public ISereinIOC SereinIOC { get; set; } // 用于存储路由信息
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// private readonly ILoggerService loggerService; // 用于存储路由信息
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//private Type PostRequest;
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public Router()
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{
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_routes = new ConcurrentDictionary<string, ConcurrentDictionary<string, MethodInfo>>(); // 初始化路由字典
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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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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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Type baseAttribute = typeof(AutoHostingAttribute);
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Type baseController = typeof(ControllerBase);
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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().Where(type => type.IsSubclassOf(baseController) // 控制器子类
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&& type.IsDefined(baseAttribute) // 包含特性
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&& type.Name.Contains("Controller"));
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foreach (var controllerType in controllerTypes)
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{
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RegisterController(controllerType);
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}
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}
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/// <summary>
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/// 在外部调用API后，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 ProcessingAsync(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;
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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 = (ControllerBase)SereinIOC.Instantiate(_controllerTypes[template]);// 使用反射创建控制器实例
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if (controllerInstance == null)
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{
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return; // 未找到控制器实例
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}
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controllerInstance.Url = url.AbsolutePath;
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try
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{
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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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// loggerService.Information(GetLog(template));
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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 = JObject.Parse(requestBody); //requestBody.FromJSON<JObject>();
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// loggerService.Information(GetLog(template, requestBody));
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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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}
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catch (Exception ex)
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{
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response.StatusCode = (int)HttpStatusCode.NotFound; // 返回 404 错误
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Return(response, ex.Message); // 返回结果
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}
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}
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/// <summary>
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/// 自动注册并实例化控制器类型
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/// </summary>
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/// <param name="controllerType"></param>
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public bool RegisterController(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 false; // 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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var methods = controllerType.GetMethods().Where(m => m.GetCustomAttribute<WebApiAttribute>() != null).ToArray();
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foreach (var method in methods) // 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 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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_controllerTypes[url] = controllerType;
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}
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}
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return true;
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}
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#region 调用Get Post对应的方法
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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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/// <summary>
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/// GET请求调用控制器方法传入参数
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/// </summary>
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/// <param name="method">方法</param>
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/// <param name="controllerInstance">控制器实例</param>
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/// <param name="methodParameters">参数列表</param>
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/// <returns></returns>
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private object InvokeMethod(MethodInfo method, object controllerInstance, object[] methodParameters)
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{
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object result = null;
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try
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{
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result = method?.Invoke(controllerInstance, methodParameters);
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}
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catch (ArgumentException ex)
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{
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string targetType = ExtractTargetTypeFromExceptionMessage(ex.Message);
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// 如果方法调用失败
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result = new
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{
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error = $"函数签名类型[{targetType}]不符合",
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};
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}
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catch (JsonSerializationException ex)
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{
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// 查找类型信息开始的索引
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int startIndex = ex.Message.IndexOf("to type '") + "to type '".Length;
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// 查找类型信息结束的索引
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int endIndex = ex.Message.IndexOf("'", startIndex);
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// 提取类型信息
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string typeInfo = ex.Message.Substring(startIndex, endIndex - startIndex);
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}
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catch (Exception ex)
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{
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Console.WriteLine(ex.ToString());
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}
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return result; // 调用方法并返回结果
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}
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private readonly Dictionary<MethodInfo, ParameterInfo[]> methodParameterCache = new Dictionary<MethodInfo, ParameterInfo[]>();
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/// <summary>
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/// POST请求调用控制器方法传入参数
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/// </summary>
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public object InvokeControllerMethod(MethodInfo method, object controllerInstance, JObject requestData, Dictionary<string, string> routeValues)
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{
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if (requestData == null) return null;
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ParameterInfo[] parameters;
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object[] cachedMethodParameters;
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if (!methodParameterCache.TryGetValue(method, out 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(UrlAttribute)) != null;
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bool isBobyData = parameters[i].GetCustomAttribute(typeof(BobyAttribute)) != null;
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if (isUrlData)
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{
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if (routeValues.ContainsKey(paramName))
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{
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cachedMethodParameters[i] = ConvertValue(routeValues[paramName], 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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var rd = requestData[paramName];
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if (parameters[i].ParameterType == typeof(string))
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{
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cachedMethodParameters[i] = rd.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] = rd.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] = rd.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] = rd.ToDouble();
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}
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else
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{
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cachedMethodParameters[i] = ConvertValue(rd, 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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#endregion
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#region 工具方法
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/// <summary>
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/// 读取Body中的消息
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/// </summary>
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/// <param name="request"></param>
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/// <returns></returns>
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private async Task<string> ReadRequestBodyAsync(HttpListenerRequest request)
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{
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using (Stream stream = request.InputStream)
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{
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using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
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{
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return await reader.ReadToEndAsync();
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}
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}
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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.ContainsKey(paramName))
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{
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parameters[i] = ConvertValue(routeValues[paramName], 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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#pragma warning restore CS0168 // 声明了变量，但从未使用过
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}
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/// <summary>
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/// 返回响应消息
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/// </summary>
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/// <param name="response"></param>
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/// <param name="msg"></param>
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private static void Return(HttpListenerResponse response, object msg)
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{
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string resultData;
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if (response != null)
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{
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try
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{
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if (msg is JArray jArray)
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{
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resultData = jArray.ToString();
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}
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else if (msg is JObject jObject)
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{
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resultData = jObject.ToString();
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}
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else if (msg is IEnumerable ienumerable)
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{
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resultData = JArray.FromObject(ienumerable).ToString();
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}
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else if (msg is string tmpmsg)
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{
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resultData = tmpmsg;
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}
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else
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{
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// 否则，将其序列化为JObject
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resultData = JObject.FromObject(msg).ToString();
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}
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//
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byte[] buffer = Encoding.UTF8.GetBytes(resultData);
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response.ContentLength64 = buffer.Length;
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response.OutputStream.Write(buffer, 0, buffer.Length);
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}
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catch (Exception ex)
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{
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// If serialization fails, use the original message's string representation
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try
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{
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resultData = ex.ToString();
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byte[] buffer = Encoding.UTF8.GetBytes(resultData);
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response.ContentLength64 = buffer.Length;
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response.OutputStream.Write(buffer, 0, buffer.Length);
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}
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catch (Exception ex1)
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{
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Console.WriteLine(ex1);
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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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/// 从方法中收集路由信息，返回方法对应的url
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/// </summary>
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/// <param name="autoHostingAttribute">类的特性</param>
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/// <param name="webAttribute">方法的特性</param>
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/// <param name="controllerType">控制器类型</param>
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/// <param name="method">方法信息</param>
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/// <returns>方法对应的urk</returns>
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private 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 (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.Http; // 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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/// 修正方法特性中的URL格式
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/// </summary>
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/// <param name="url"></param>
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/// <returns></returns>
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private static string CleanUrl(string url)
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{
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while (url.Length > 0 && url[0] == '/') // 去除开头的斜杠
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{
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url = url.Substring(1);
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}
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while (url.Length > 0 && url[url.Length - 1] == '/') // 去除末尾的斜杠
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{
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url = url.Substring(0, url.Length - 1);
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}
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for (int i = 0; i < url.Length - 1; i++) // 去除连续的斜杠
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{
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if (url[i] == '/' && url[i + 1] == '/')
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{
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url = url.Remove(i, 1);
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i--;
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}
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}
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return url; // 返回清理后的 URL
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}
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/// <summary>
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/// 方法声明，用于解析 URL 获取路由参数
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/// </summary>
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/// <param name="uri"></param>
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/// <returns></returns>
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private Dictionary<string, string> GetUrlData(Uri uri)
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{
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Dictionary<string, string> routeValues = new Dictionary<string, string>();
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var pathParts = uri.ToString().Split('?'); // 拆分 URL，获取路径部分
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if (pathParts.Length > 1) // 如果包含查询字符串
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{
|
||
//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
|
||
//}
|
||
var parsedQuery = QueryStringParser.ParseQueryString(pathParts[1]);
|
||
foreach (var kvp in parsedQuery)
|
||
{
|
||
//Console.WriteLine($"{kvp.Key}: {kvp.Value}");
|
||
routeValues[kvp.Key] = kvp.Value; // 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>
|
||
/// 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("”", startIndex);
|
||
if (endIndex != -1)
|
||
{
|
||
return errorMessage.Substring(startIndex, endIndex - startIndex);
|
||
}
|
||
}
|
||
|
||
return null;
|
||
}
|
||
#endregion
|
||
}
|
||
|
||
|
||
|
||
internal static class WebFunc
|
||
{
|
||
public static bool ToBool(this JToken token,bool defult = false)
|
||
{
|
||
var value = token?.ToString();
|
||
if (string.IsNullOrWhiteSpace(value))
|
||
{
|
||
return defult;
|
||
}
|
||
if (!bool.TryParse(value, out bool result))
|
||
{
|
||
return defult;
|
||
}
|
||
else
|
||
{
|
||
return result;
|
||
}
|
||
}
|
||
public static int ToInt(this JToken token, int defult = 0)
|
||
{
|
||
var value = token?.ToString();
|
||
if (string.IsNullOrWhiteSpace(value))
|
||
{
|
||
return defult;
|
||
}
|
||
if (!int.TryParse(value, out int result))
|
||
{
|
||
return defult;
|
||
}
|
||
else
|
||
{
|
||
return result;
|
||
}
|
||
}
|
||
public static double ToDouble(this JToken token, double defult = 0)
|
||
{
|
||
var value = token?.ToString();
|
||
if (string.IsNullOrWhiteSpace(value))
|
||
{
|
||
return defult;
|
||
}
|
||
if (!int.TryParse(value, out int result))
|
||
{
|
||
return defult;
|
||
}
|
||
else
|
||
{
|
||
return result;
|
||
}
|
||
}
|
||
}
|
||
|
||
#region 已经注释
|
||
|
||
// private readonly ConcurrentDictionary<string, bool> _controllerAutoHosting; // 存储是否实例化
|
||
// private readonly ConcurrentDictionary<string, object> _controllerInstances;
|
||
|
||
//public void CollectRoutes(Type controllerType)
|
||
//{
|
||
// string controllerName = controllerType.Name.Replace("Controller", "").ToLower(); // 获取控制器名称并转换为小写
|
||
// foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
|
||
// {
|
||
// var routeAttribute = method.GetCustomAttribute<WebApiAttribute>(); // 获取方法上的 WebAPIAttribute 自定义属性
|
||
// if (routeAttribute != null) // 如果存在 WebAPIAttribute 属性
|
||
// {
|
||
// var customUrl = routeAttribute.Url; // 获取自定义 URL
|
||
// string url;
|
||
// if (string.IsNullOrEmpty(customUrl)) // 如果自定义 URL 为空
|
||
// {
|
||
// url = $"/api/{controllerName}/{method.Name}".ToLower(); // 构建默认 URL
|
||
// }
|
||
// else
|
||
// {
|
||
// customUrl = CleanUrl(customUrl);
|
||
// url = $"/api/{controllerName}/{method.Name}/{customUrl}".ToLower();// 清理自定义 URL，并构建新的 URL
|
||
// }
|
||
// var httpMethod = routeAttribute.Http; // 获取 HTTP 方法
|
||
// _routes[httpMethod.ToString()].TryAdd(url, method); // 将 URL 和方法添加到对应的路由字典中
|
||
// }
|
||
// }
|
||
//}
|
||
|
||
//public void RegisterRoute<T>(T controllerInstance) // 方法声明，用于动态注册路由
|
||
//{
|
||
// Type controllerType = controllerInstance.GetType(); // 获取控制器实例的类型
|
||
// var autoHostingAttribute = controllerType.GetCustomAttribute<AutoHostingAttribute>();
|
||
// foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
|
||
// {
|
||
// var webAttribute = method.GetCustomAttribute<WebApiAttribute>(); // 获取方法上的 WebAPIAttribute 自定义属性
|
||
// if (webAttribute != null) // 如果存在 WebAPIAttribute 属性
|
||
// {
|
||
// var url = AddRoutesUrl(autoHostingAttribute, webAttribute, controllerType, method);
|
||
// if (url == null) continue;
|
||
// _controllerInstances[url] = controllerInstance;
|
||
// _controllerAutoHosting[url] = false;
|
||
// }
|
||
|
||
// }
|
||
//}
|
||
|
||
#endregion
|
||
}
|
||
|
