修改了IOC的实现,删除了项目排除的文件

This commit is contained in:
fengjiayi
2024-09-16 19:53:36 +08:00
parent 61d40977ff
commit bcbf6cb992
72 changed files with 702 additions and 11732 deletions

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@@ -1,167 +0,0 @@
using Serein.Library.Framework.NodeFlow;
using System;
namespace Serein.Library.Framework.Http
{
///// <summary>
///// 用来判断一个类是否需要注册并构建实例(单例模式场景使用)
///// </summary>
//[AttributeUsage(AttributeTargets.Class)]
//public class DynamicFlowAttribute : Attribute
//{
// public DynamicFlowAttribute(bool scan = true)
// {
// Scan = scan;
// }
// public bool Scan { get; set; }
//}
///// <summary>
///// 标记一个方法是什么类型加载dll后用来拖拽到画布中
///// </summary>
//[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
//public class MethodDetailAttribute : Attribute
//{
// public MethodDetailAttribute(DynamicNodeType methodDynamicType,
// string methodTips = "",
// bool scan = true,
// string lockName = "")
// {
// Scan = scan;
// MethodDynamicType = methodDynamicType;
// MethodTips = methodTips;
// LockName = lockName;
// }
// public bool Scan { get; set; }
// public string MethodTips { get; }
// public DynamicNodeType MethodDynamicType { get; }
// public string LockName { get; }
//}
/// <summary>
/// 是否为显式参数
/// </summary>
//[AttributeUsage(AttributeTargets.Parameter)]
//public class ExplicitAttribute : Attribute // where TEnum : Enum
//{
//}
/// <summary>
/// 表示参数为url中的数据Get请求中不需要显式标注
/// </summary>
[AttributeUsage(AttributeTargets.Parameter)]
public sealed class IsUrlDataAttribute : Attribute
{
}
/// <summary>
/// 表示入参参数为整个boby的数据
/// <para>
/// 例如User类型含有int id、string name字段</para>
/// <para>
/// ① Add(User user)</para>
/// <para>请求需要传入的json为
/// {"user":{
/// "id":2,
/// "name":"李志忠"}}</para>
/// <para>
/// ② Add([Boby]User user)</para>
/// <para>请求需要传入的json为
/// {"id":2,"name":"李志忠"}</para>
///
/// </summary>
[AttributeUsage(AttributeTargets.Parameter)]
public sealed class IsBobyDataAttribute : Attribute
{
}
/// <summary>
/// 表示该控制器会被自动注册与程序集同一命名空间暂时不支持运行时自动加载DLL需要手动注册
/// </summary>
[AttributeUsage(AttributeTargets.Class)]
public sealed class AutoHostingAttribute : Attribute
{
public AutoHostingAttribute(string url = "")
{
Url = url;
}
public string Url { get; }
}
/// <summary>
/// 表示该属性为自动注入依赖项
/// </summary>
[AttributeUsage(AttributeTargets.Property)]
public sealed class AutoInjectionAttribute : Attribute
{
}
/// <summary>
/// 方法的接口类型与附加URL
/// </summary>
/// <remarks>
/// 假设UserController.Add()的WebAPI特性中
/// http是HTTP.POST
/// url被显示标明“temp”
/// 那么请求的接口是POST,URL是
/// [http://localhost:8080]/user/add/temp
/// </remarks>
/// <param name="http"></param>
/// <param name="url"></param>
[AttributeUsage(AttributeTargets.Method)]
public sealed class WebApiAttribute : Attribute
{
public API Type;
public string Url;
/// <summary>
/// 方法名称不作为url的部分
/// </summary>
public bool IsUrl;
}
[AttributeUsage(AttributeTargets.Method)]
public sealed class ApiPostAttribute : Attribute
{
public string Url;
/// <summary>
/// 方法名称不作为url的部分
/// </summary>
public bool IsUrl = true;
}
[AttributeUsage(AttributeTargets.Method)]
public sealed class ApiGetAttribute : Attribute
{
public string Url;
/// <summary>
/// 方法名称不作为url的部分
/// </summary>
public bool IsUrl = true;
}
/*public sealed class WebApiAttribute(API http, bool isUrl = true, string url = "") : Attribute
{
public API Http { get; } = http;
public string Url { get; } = url;
/// <summary>
/// 方法名称不作为url的部分
/// </summary>
public bool IsUrl { get; } = isUrl;
}*/
public enum API
{
POST,
GET,
//PUT,
//DELETE
}
}

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@@ -1,19 +0,0 @@
using System;
namespace Serein.Library.Framework.Http
{
public class ControllerBase
{
public string Url { get; set; }
public string BobyData { get; set; }
public string GetLog(Exception ex)
{
return "Url : " + Url + Environment.NewLine +
"Ex : " + ex.Message + Environment.NewLine +
"Data : " + BobyData + Environment.NewLine;
}
}
}

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@@ -1,761 +0,0 @@
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Serein.Library.Api.Api;
using Serein.Library.Framework.IOC;
using Serein.Tool;
using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Runtime.Remoting.Messaging;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using Enum = System.Enum;
using Type = System.Type;
namespace Serein.Library.Framework.Http
{
/// <summary>
/// 路由注册与解析
/// </summary>
public class Router
{
private readonly ConcurrentDictionary<string, bool> _controllerAutoHosting; // 存储是否实例化
private readonly ConcurrentDictionary<string, Type> _controllerTypes; // 存储控制器类型
private readonly ConcurrentDictionary<string, object> _controllerInstances; // 存储控制器实例对象
private readonly ConcurrentDictionary<string, ConcurrentDictionary<string, MethodInfo>> _routes; // 用于存储路由信息
private readonly ISereinIoc serviceRegistry; // 用于存储路由信息
//private Type PostRequest;
public Router(ISereinIoc serviceRegistry) // 构造函数,初始化 Router 类的新实例
{
this.serviceRegistry = serviceRegistry;
_routes = new ConcurrentDictionary<string, ConcurrentDictionary<string, MethodInfo>>(); // 初始化路由字典
_controllerAutoHosting = new ConcurrentDictionary<string, bool>(); // 初始化控制器实例对象字典
_controllerTypes = new ConcurrentDictionary<string, Type>(); // 初始化控制器实例对象字典
_controllerInstances = new ConcurrentDictionary<string, object>(); // 初始化控制器实例对象字典
foreach (API method in Enum.GetValues(typeof(API))) // 遍历 HTTP 枚举类型的所有值
{
_routes.TryAdd(method.ToString(), new ConcurrentDictionary<string, MethodInfo>()); // 初始化每种 HTTP 方法对应的路由字典
}
// 获取当前程序集
Assembly assembly = Assembly.GetExecutingAssembly();
// 获取包含“Controller”名称的类型
var controllerTypes = assembly.GetTypes()
.Where(t => t.Name.Contains("Controller"));
Type baseAttribute = typeof(AutoHostingAttribute);
Type baseController = typeof(ControllerBase);
foreach (var controllerType in controllerTypes)
{
if (controllerType.IsSubclassOf(baseController) && controllerType.IsDefined(baseAttribute))
{
// 如果属于控制器并标记了AutoHosting特性进行自动注册
AutoRegisterAutoController(controllerType);
}
else
{
continue;
}
}
}
/// <summary>
/// 自动注册 自动实例化控制器 类型
/// </summary>
/// <param name="controllerType"></param>
public void AutoRegisterAutoController(Type controllerType) // 方法声明,用于注册并实例化控制器类型
{
if (!controllerType.IsClass || controllerType.IsAbstract) return; // 如果不是类或者是抽象类,则直接返回
var autoHostingAttribute = controllerType.GetCustomAttribute<AutoHostingAttribute>();
if (autoHostingAttribute != null) {
foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
{
var apiGetAttribute = method.GetCustomAttribute<ApiGetAttribute>();
var apiPostAttribute = method.GetCustomAttribute<ApiPostAttribute>();
if( apiGetAttribute == null && apiPostAttribute == null )
{
continue;
}
WebApiAttribute webApiAttribute = new WebApiAttribute()
{
Type = apiGetAttribute != null ? API.GET : API.POST,
Url = apiGetAttribute != null ? apiGetAttribute.Url : apiPostAttribute.Url,
IsUrl = apiGetAttribute != null ? apiGetAttribute.IsUrl : apiPostAttribute.IsUrl,
};
if (apiPostAttribute != null) // 如果存在 WebAPIAttribute 属性
{
var url = AddRoutesUrl(autoHostingAttribute,
webApiAttribute,
controllerType, method);
Console.WriteLine(url);
if (url == null) continue;
_controllerAutoHosting[url] = true;
_controllerTypes[url] = controllerType;
_controllerInstances[url] = null;
}
/* 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 url = AddRoutesUrl(autoHostingAttribute, routeAttribute, controllerType, method);
Console.WriteLine(url);
if (url == null) continue;
_controllerAutoHosting[url] = true;
_controllerTypes[url] = controllerType;
_controllerInstances[url] = null;
}*/
}
}
}
/// <summary>
/// 手动注册 自动实例化控制器实例
/// </summary>
public void RegisterAutoController<T>() // 方法声明,用于动态注册路由
{
Type controllerType = typeof(T); // 获取控制器实例的类型
foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
{
var apiGetAttribute = method.GetCustomAttribute<ApiGetAttribute>();
var apiPostAttribute = method.GetCustomAttribute<ApiPostAttribute>();
if (apiGetAttribute == null && apiPostAttribute == null)
{
continue;
}
WebApiAttribute webApiAttribute = new WebApiAttribute()
{
Type = apiGetAttribute != null ? API.GET : API.POST,
Url = apiGetAttribute != null ? apiGetAttribute.Url : apiPostAttribute.Url,
IsUrl = apiGetAttribute != null ? apiGetAttribute.IsUrl : apiPostAttribute.IsUrl,
};
var url = AddRoutesUrl(null, webApiAttribute, controllerType, method);
if (url == null) continue;
_controllerAutoHosting[url] = true;
_controllerTypes[url] = controllerType;
_controllerInstances[url] = null;
}
}
/// <summary>
/// 手动注册 实例持久控制器实例
/// </summary>
/// <param name="controllerInstance"></param>
public void RegisterController<TController>(TController controllerInstance) where TController : ControllerBase // 方法声明,用于动态注册路由
{
if(controllerInstance == null) return;
Type controllerType = controllerInstance.GetType(); // 获取控制器实例的类型
foreach (var method in controllerType.GetMethods()) // 遍历控制器类型的所有方法
{
var apiGetAttribute = method.GetCustomAttribute<ApiGetAttribute>();
var apiPostAttribute = method.GetCustomAttribute<ApiPostAttribute>();
if (apiGetAttribute == null && apiPostAttribute == null)
{
continue;
}
WebApiAttribute webApiAttribute = new WebApiAttribute()
{
Type = apiGetAttribute != null ? API.GET : API.POST,
Url = apiGetAttribute != null ? apiGetAttribute.Url : apiPostAttribute.Url,
IsUrl = apiGetAttribute != null ? apiGetAttribute.IsUrl : apiPostAttribute.IsUrl,
};
var url = AddRoutesUrl(null, webApiAttribute, controllerType, method);
if (url == null) continue;
_controllerInstances[url] = controllerInstance;
_controllerAutoHosting[url] = false;
}
}
/// <summary>
/// 从方法中收集路由信息
/// </summary>
/// <param name="controllerType"></param>
public string AddRoutesUrl(AutoHostingAttribute autoHostingAttribute, WebApiAttribute webAttribute, Type controllerType, MethodInfo method)
{
string controllerName;
if (autoHostingAttribute == null || string.IsNullOrWhiteSpace(autoHostingAttribute.Url))
{
controllerName = controllerType.Name.Replace("Controller", "").ToLower(); // 获取控制器名称并转换为小写
}
else
{
controllerName = autoHostingAttribute.Url;
}
var httpMethod = webAttribute.Type; // 获取 HTTP 方法
var customUrl = webAttribute.Url; // 获取自定义 URL
string url;
if (webAttribute.IsUrl)
{
if (string.IsNullOrEmpty(customUrl)) // 如果自定义 URL 为空
{
url = $"/{controllerName}/{method.Name}".ToLower(); // 构建默认 URL
}
else
{
customUrl = CleanUrl(customUrl);
url = $"/{controllerName}/{method.Name}/{customUrl}".ToLower();// 清理自定义 URL并构建新的 URL
}
_routes[httpMethod.ToString()].TryAdd(url, method); // 将 URL 和方法添加到对应的路由字典中
}
else
{
if (string.IsNullOrEmpty(customUrl)) // 如果自定义 URL 为空
{
url = $"/{controllerName}".ToLower(); // 构建默认 URL
}
else
{
customUrl = CleanUrl(customUrl);
url = $"/{controllerName}/{customUrl}".ToLower();// 清理自定义 URL并构建新的 URL
}
_routes[httpMethod.ToString()].TryAdd(url, method); // 将 URL 和方法添加到对应的路由字典中
}
return url;
}
/// <summary>
/// 收集路由信息
/// </summary>
/// <param name="controllerType"></param>
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.Type; // 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
}
}
}
/// <summary>
/// 解析路由,调用对应的方法
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async Task<bool> RouteAsync(HttpListenerContext context)
{
var request = context.Request; // 获取请求对象
var response = context.Response; // 获取响应对象
var url = request.Url; // 获取请求的 URL
var httpMethod = request.HttpMethod; // 获取请求的 HTTP 方法
var template = request.Url.AbsolutePath.ToLower();
if (!_routes[httpMethod].TryGetValue(template, out MethodInfo method))
{
return false;
}
var routeValues = GetUrlData(url); // 解析 URL 获取路由参数
ControllerBase controllerInstance;
if (!_controllerAutoHosting[template])
{
controllerInstance = (ControllerBase)_controllerInstances[template];
}
else
{
controllerInstance = (ControllerBase)serviceRegistry.Instantiate(_controllerTypes[template]);// 使用反射创建控制器实例
}
if (controllerInstance == null)
{
return false; // 未找到控制器实例
}
controllerInstance.Url = url.AbsolutePath;
object result;
switch (httpMethod) // 根据请求的 HTTP 方法执行不同的操作
{
case "GET": // 如果是 GET 请求传入方法、控制器、url参数
result = InvokeControllerMethodWithRouteValues(method, controllerInstance, routeValues);
break;
case "POST": // POST 请求传入方法、控制器、请求体内容url参数
var requestBody = await ReadRequestBodyAsync(request); // 读取请求体内容
controllerInstance.BobyData = requestBody;
var requestJObject = requestBody.FromJSON<object>();
result = InvokeControllerMethod(method, controllerInstance, requestJObject, routeValues);
break;
default:
result = null;
break;
}
Return(response, result); // 返回结果
return true;
}
public static string GetLog(string Url, string BobyData = "")
{
return Environment.NewLine +
"Url : " + Url + Environment.NewLine +
"Data : " + BobyData + Environment.NewLine;
}
/// <summary>
/// GET请求的控制器方法
/// </summary>
private object InvokeControllerMethodWithRouteValues(MethodInfo method, object controllerInstance, Dictionary<string, string> routeValues)
{
object[] parameters = GetMethodParameters(method, routeValues);
return InvokeMethod(method, controllerInstance, parameters);
}
private static readonly Dictionary<MethodInfo, ParameterInfo[]> methodParameterCache = new Dictionary<MethodInfo, ParameterInfo[]>();
/// <summary>
/// POST请求的调用控制器方法
/// </summary>
public object InvokeControllerMethod(MethodInfo method, object controllerInstance, dynamic requestData, Dictionary<string, string> routeValues)
{
object[] cachedMethodParameters;
if (!methodParameterCache.TryGetValue(method, out ParameterInfo[] parameters))
{
parameters = method.GetParameters();
}
cachedMethodParameters = new object[parameters.Length];
for (int i = 0; i < parameters.Length; i++)
{
string paramName = parameters[i].Name;
bool isUrlData = parameters[i].GetCustomAttribute(typeof(IsUrlDataAttribute)) != null;
bool isBobyData = parameters[i].GetCustomAttribute(typeof(IsBobyDataAttribute)) != null;
if (isUrlData)
{
if (!string.IsNullOrEmpty(paramName) && routeValues.TryGetValue(paramName, out string value))
{
cachedMethodParameters[i] = ConvertValue(value, parameters[i].ParameterType);
}
else
{
cachedMethodParameters[i] = null;
}
}
else if (isBobyData)
{
cachedMethodParameters[i] = ConvertValue(requestData.ToString(), parameters[i].ParameterType);
}
else
{
if (requestData.ContainsKey(paramName))
{
if (parameters[i].ParameterType == typeof(string))
{
cachedMethodParameters[i] = requestData[paramName].ToString();
}
else if (parameters[i].ParameterType == typeof(bool))
{
cachedMethodParameters[i] = requestData[paramName?.ToLower()].ToBool();
}
else if (parameters[i].ParameterType == typeof(int))
{
cachedMethodParameters[i] = requestData[paramName].ToInt();
}
else if (parameters[i].ParameterType == typeof(double))
{
cachedMethodParameters[i] = requestData[paramName].ToDouble();
}
else
{
cachedMethodParameters[i] = ConvertValue(requestData[paramName], parameters[i].ParameterType);
}
}
else
{
cachedMethodParameters[i] = null;
}
}
}
// 缓存方法和参数的映射
//methodParameterCache[method] = cachedMethodParameters;
// 调用方法
return method.Invoke(controllerInstance, cachedMethodParameters);
}
/// <summary>
/// 检查方法入参参数类型,返回对应的入参数组
/// </summary>
/// <param name="method"></param>
/// <param name="routeValues"></param>
/// <returns></returns>
private object[] GetMethodParameters(MethodInfo method, Dictionary<string, string> routeValues)
{
ParameterInfo[] methodParameters = method.GetParameters();
object[] parameters = new object[methodParameters.Length];
for (int i = 0; i < methodParameters.Length; i++)
{
string paramName = methodParameters[i].Name;
if (routeValues.TryGetValue(paramName, out string value))
{
parameters[i] = ConvertValue(value, methodParameters[i].ParameterType);
}
else
{
parameters[i] = null;
}
}
return parameters;
}
/*/// <summary>
/// 转为对应的类型
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <returns></returns>
private object ConvertValue(object value, Type targetType)
{
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("'", startIndex); // 查找类型信息结束的索引
var typeInfo = ex.Message.Substring(startIndex, endIndex - startIndex); // 提取出错类型信息,该怎么传出去?
return null;
}
catch // (Exception ex)
{
return value;
}
}*/
/// <summary>
/// 转为对应的类型
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <returns></returns>
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.Substring(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.Substring(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 = new Dictionary<string, string>();
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 StreamReader(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 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.Substring(1,url.Length-1);
}
while (url.Length > 0 && url[url.Length-1] == '/') // 去除末尾的斜杠
{
url = url.Substring(0,url.Length-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.Substring(startIndex, endIndex);
}
}
return null;
}
}
}

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@@ -1,196 +0,0 @@
using Serein.Library.Api.Api;
using Serein.Library.Framework.IOC;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Net;
using System.Threading.Tasks;
namespace Serein.Library.Framework.Http
{
/// <summary>
/// HTTP接口监听类
/// </summary>
public class WebServer
{
private readonly HttpListener listener; // HTTP 监听器
private Router router; // 路由器
private readonly RequestLimiter requestLimiter; //接口防刷
public WebServer()
{
listener = new HttpListener();
requestLimiter = new RequestLimiter(5, 8);
}
// 启动服务器
public WebServer Start(string prefixe, ISereinIoc serviceContainer)
{
try
{
router = new Router(serviceContainer);
if (listener.IsListening)
{
return this;
}
if (!prefixe.Substring(prefixe.Length - 1, 1).Equals(@"/"))
{
prefixe += @"/";
}
listener.Prefixes.Add(prefixe); // 添加监听前缀
listener.Start(); // 开始监听
Console.WriteLine($"开始监听:{prefixe}");
Task.Run(async () =>
{
while (listener.IsListening)
{
var context = await listener.GetContextAsync(); // 获取请求上下文
_ = Task.Run(() => ProcessRequestAsync(context)); // 处理请求)
}
});
return this;
}
catch (HttpListenerException ex) when (ex.ErrorCode == 183)
{
return this;
}
}
/// <summary>
/// 处理请求
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private async Task ProcessRequestAsync(HttpListenerContext context)
{
// 添加CORS头部
context.Response.Headers.Add("Access-Control-Allow-Origin", "*");
context.Response.Headers.Add("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
context.Response.Headers.Add("Access-Control-Allow-Headers", "Content-Type");
// 处理OPTIONS预检请求
if (context.Request.HttpMethod == "OPTIONS")
{
context.Response.StatusCode = (int)HttpStatusCode.OK;
context.Response.Close();
return;
}
var isPass = await router.RouteAsync(context); // 路由解析
if (isPass)
{
context.Response.StatusCode = (int)HttpStatusCode.OK;
context.Response.Close(); // 关闭响应
}
else
{
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
context.Response.Close(); // 关闭响应
}
//var isPass = requestLimiter.AllowRequest(context.Request);
//if (isPass)
//{
// // 如果路由没有匹配,返回 404
// router.RouteAsync(context); // 路由解析
//}
//else
//{
// context.Response.StatusCode = (int)HttpStatusCode.NotFound; // 返回 404 错误
// context.Response.Close(); // 关闭响应
//}
// var request = context.Request;
// 获取远程终结点信息
//var remoteEndPoint = context.Request.RemoteEndPoint;
//// 获取用户的IP地址和端口
//IPAddress ipAddress = remoteEndPoint.Address;
//int port = remoteEndPoint.Port;
//Console.WriteLine("外部连接:" + ipAddress.ToString() + ":" + port);
}
// 停止服务器
public void Stop()
{
if (listener.IsListening)
{
listener?.Stop(); // 停止监听
listener?.Close(); // 关闭监听器
}
}
public void RegisterAutoController<T>()
{
//var instance = Activator.CreateInstance(typeof(T));
router.RegisterAutoController<T>();
}
/*public void RegisterRoute<T>(T controllerInstance)
{
router.RegisterRoute(controllerInstance);
}*/
}
/// <summary>
/// 判断访问接口的频次是否正常
/// </summary>
public class RequestLimiter
{
public RequestLimiter(int seconds, int maxRequests)
{
interval = TimeSpan.FromSeconds(seconds);
maxRequests = maxRequests;
}
private readonly ConcurrentDictionary<string, Queue<DateTime>> requestHistory = new ConcurrentDictionary<string, Queue<DateTime>>();
private readonly TimeSpan interval;
private readonly int maxRequests;
/// <summary>
/// 判断访问接口的频次是否正常
/// </summary>
/// <returns></returns>
public bool AllowRequest(HttpListenerRequest request)
{
var clientIp = request.RemoteEndPoint.Address.ToString();
var clientPort = request.RemoteEndPoint.Port;
var clientKey = clientIp + ":" + clientPort;
var now = DateTime.Now;
// 尝试从字典中获取请求队列,不存在则创建新的队列
var requests = requestHistory.GetOrAdd(clientKey, new Queue<DateTime>());
lock (requests)
{
// 移除超出时间间隔的请求记录
while (requests.Count > 0 && now - requests.Peek() > interval)
{
requests.Dequeue();
}
// 如果请求数超过限制,拒绝请求
if (requests.Count >= maxRequests)
{
return false;
}
// 添加当前请求时间,并允许请求
requests.Enqueue(now);
}
return true;
}
}
}

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@@ -1,378 +0,0 @@
using Serein.Library.Api;
using Serein.Library.Attributes;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
namespace Serein.Library.Framework.IOC
{
public class SereinIoc : ISereinIoc
{
private readonly ConcurrentDictionary<string, object> _dependencies;
private readonly ConcurrentDictionary<string, Type> _typeMappings;
private readonly List<Type> _waitingForInstantiation;
public SereinIoc()
{
_dependencies = new ConcurrentDictionary<string, object>
{
[typeof(ISereinIoc).FullName] = this
};
_typeMappings = new ConcurrentDictionary<string, Type>();
_waitingForInstantiation = new List<Type>();
}
public object GetOrCreateServiceInstance(Type type, params object[] parameters)
{
Register(type);
object instance;
if (_dependencies.ContainsKey(type.FullName))
{
instance = _dependencies[type.FullName];
}
else
{
instance = Activator.CreateInstance(type);
_dependencies[type.FullName] = instance;
}
return instance;
}
public T CreateServiceInstance<T>(params object[] parameters)
{
return (T)GetOrCreateServiceInstance(typeof(T), parameters);
}
public ISereinIoc Reset()
{
foreach(var instancei in _dependencies.Values)
{
if (typeof(IDisposable).IsAssignableFrom(instancei.GetType()) && instancei is IDisposable disposable)
{
disposable.Dispose();
}
}
_dependencies.Clear();
_waitingForInstantiation.Clear();
//_typeMappings.Clear();
return this;
}
public ISereinIoc Register(Type type, params object[] parameters)
{
if (!_typeMappings.ContainsKey(type.FullName))
{
_typeMappings[type.FullName] = type;
}
return this;
}
public ISereinIoc Register<T>(params object[] parameters)
{
Register(typeof(T), parameters);
return this;
}
public ISereinIoc Register<TService, TImplementation>(params object[] parameters)
where TImplementation : TService
{
_typeMappings[typeof(TService).FullName] = typeof(TImplementation);
return this;
}
public object GetOrInstantiate(Type type)
{
if (!_dependencies.TryGetValue(type.FullName, out object value))
{
Register(type);
value = Instantiate(type);
InjectDependencies(type);
}
return value;
}
public T GetOrInstantiate<T>()
{
if(!_dependencies.TryGetValue(typeof(T).FullName, out object value))
{
Register<T>();
value = Instantiate(typeof(T));
}
return (T)value;
//throw new InvalidOperationException("目标类型未创建实例");
}
public ISereinIoc Build()
{
foreach (var type in _typeMappings.Values)
{
if(!_dependencies.ContainsKey(type.FullName))
{
_dependencies[type.FullName] = Activator.CreateInstance(type);
}
}
foreach (var instance in _dependencies.Values)
{
InjectDependencies(instance); // 替换占位符
}
//var instance = Instantiate(item.Value);
TryInstantiateWaitingDependencies();
return this;
}
public object Instantiate(Type controllerType, params object[] parameters)
{
var instance = Activator.CreateInstance(controllerType, parameters);
if(instance != null)
{
InjectDependencies(instance);
}
return instance;
}
private void InjectDependencies(object instance)
{
var properties = instance.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public).ToArray()
.Where(p => p.CanWrite && p.GetCustomAttribute<AutoInjectionAttribute>() != null);
foreach (var property in properties)
{
var propertyType = property.PropertyType;
if (_dependencies.TryGetValue(propertyType.FullName, out var dependencyInstance))
{
property.SetValue(instance, dependencyInstance);
}
}
}
private void TryInstantiateWaitingDependencies()
{
foreach (var waitingType in _waitingForInstantiation.ToList())
{
if (_typeMappings.TryGetValue(waitingType.FullName, out var implementationType))
{
var instance = Instantiate(implementationType);
if (instance != null)
{
_dependencies[waitingType.FullName] = instance;
_waitingForInstantiation.Remove(waitingType);
}
}
}
}
#region run()
public ISereinIoc Run<T>(Action<T> action)
{
var service = GetOrInstantiate<T>();
if (service != null)
{
action(service);
}
return this;
}
public ISereinIoc Run<T1, T2>(Action<T1, T2> action)
{
var service1 = GetOrInstantiate<T1>();
var service2 = GetOrInstantiate<T2>();
action(service1, service2);
return this;
}
public ISereinIoc Run<T1, T2, T3>(Action<T1, T2, T3> action)
{
var service1 = GetOrInstantiate<T1>();
var service2 = GetOrInstantiate<T2>();
var service3 = GetOrInstantiate<T3>();
action(service1, service2, service3);
return this;
}
public ISereinIoc Run<T1, T2, T3, T4>(Action<T1, T2, T3, T4> action)
{
var service1 = GetOrInstantiate<T1>();
var service2 = GetOrInstantiate<T2>();
var service3 = GetOrInstantiate<T3>();
var service4 = GetOrInstantiate<T4>();
action(service1, service2, service3, service4);
return this;
}
public ISereinIoc Run<T1, T2, T3, T4, T5>(Action<T1, T2, T3, T4, T5> action)
{
var service1 = GetOrInstantiate<T1>();
var service2 = GetOrInstantiate<T2>();
var service3 = GetOrInstantiate<T3>();
var service4 = GetOrInstantiate<T4>();
var service5 = GetOrInstantiate<T5>();
action(service1, service2, service3, service4, service5);
return this;
}
public ISereinIoc Run<T1, T2, T3, T4, T5, T6>(Action<T1, T2, T3, T4, T5, T6> action)
{
var service1 = GetOrInstantiate<T1>();
var service2 = GetOrInstantiate<T2>();
var service3 = GetOrInstantiate<T3>();
var service4 = GetOrInstantiate<T4>();
var service5 = GetOrInstantiate<T5>();
var service6 = GetOrInstantiate<T6>();
action(service1, service2, service3, service4, service5, service6);
return this;
}
public ISereinIoc Run<T1, T2, T3, T4, T5, T6, T7>(Action<T1, T2, T3, T4, T5, T6, T7> action)
{
var service1 = GetOrInstantiate<T1>();
var service2 = GetOrInstantiate<T2>();
var service3 = GetOrInstantiate<T3>();
var service4 = GetOrInstantiate<T4>();
var service5 = GetOrInstantiate<T5>();
var service6 = GetOrInstantiate<T6>();
var service7 = GetOrInstantiate<T7>();
action(service1, service2, service3, service4, service5, service6, service7);
return this;
}
public ISereinIoc Run<T1, T2, T3, T4, T5, T6, T7, T8>(Action<T1, T2, T3, T4, T5, T6, T7, T8> action)
{
var service1 = GetOrInstantiate<T1>();
var service2 = GetOrInstantiate<T2>();
var service3 = GetOrInstantiate<T3>();
var service4 = GetOrInstantiate<T4>();
var service5 = GetOrInstantiate<T5>();
var service6 = GetOrInstantiate<T6>();
var service7 = GetOrInstantiate<T7>();
var service8 = GetOrInstantiate<T8>();
action(service1, service2, service3, service4, service5, service6, service7, service8);
return this;
}
#endregion
}
/* public interface IServiceContainer
{
ServiceContainer Register<T>(params object[] parameters);
ServiceContainer Register<TService, TImplementation>(params object[] parameters) where TImplementation : TService;
TService Resolve<TService>();
void Get<T>(Action<T> action);
object Instantiate(Type type, params object[] parameters);
}
public class ServiceContainer : IServiceContainer
{
private readonly Dictionary<Type, object> _dependencies;
public ServiceContainer()
{
_dependencies = new Dictionary<Type, object>
{
[typeof(IServiceContainer)] = this
};
}
public void Get<T>(Action<T> action)
{
var service = Resolve<T>();
action(service);
}
public ServiceContainer Register<T>(params object[] parameters)
{
var instance = Instantiate(typeof(T), parameters);
_dependencies[typeof(T)] = instance;
return this;
}
public ServiceContainer Register<TService, TImplementation>(params object[] parameters)
where TImplementation : TService
{
_dependencies[typeof(TService)] = Instantiate(typeof(TImplementation), parameters);
return this;
}
public TService Resolve<TService>()
{
return (TService)_dependencies[typeof(TService)];
}
public object Instantiate(Type controllerType, params object[] parameters)
{
var constructors = controllerType.GetConstructors(); // 获取控制器的所有构造函数
// 查找具有最多参数的构造函数
var constructor = constructors.OrderByDescending(c => c.GetParameters().Length).FirstOrDefault();
if (constructor != null)
{
if (parameters.Length > 0)
{
return Activator.CreateInstance(controllerType, parameters);
}
else {
var tmpParameters = constructor.GetParameters();
var dependencyInstances = new List<object>();
foreach (var parameter in tmpParameters)
{
var parameterType = parameter.ParameterType;
_dependencies.TryGetValue(parameterType, out var dependencyInstance);
dependencyInstances.Add(dependencyInstance);
if (dependencyInstance == null)
{
return null;
}
}
// 用解析的依赖项实例化目标类型
return Activator.CreateInstance(controllerType, dependencyInstances.ToArray());
}
}
else
{
return Activator.CreateInstance(controllerType);
}
}
}*/
}

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@@ -1,13 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.Library.Framework.NodeFlow
{
public interface IDynamicFlowNode
{
}
}

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@@ -1,38 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.LibraryFramework.NodeFlow
{
public enum DynamicNodeFrameworkType
{
/// <summary>
/// 初始化
/// </summary>
Init,
/// <summary>
/// 开始载入
/// </summary>
Loading,
/// <summary>
/// 结束
/// </summary>
Exit,
/// <summary>
/// 触发器
/// </summary>
Flipflop,
/// <summary>
/// 条件节点
/// </summary>
Condition,
/// <summary>
/// 动作节点
/// </summary>
Action,
}
}

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@@ -1,25 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.Library.Framework.NodeFlow
{
//public enum FlowStateType
//{
// /// <summary>
// /// 成功(方法成功执行)
// /// </summary>
// Succeed,
// /// <summary>
// /// 失败(方法没有成功执行,不过执行时没有发生非预期的错误)
// /// </summary>
// Fail,
// /// <summary>
// /// 异常(节点没有成功执行,执行时发生非预期的错误)
// /// </summary>
// Error,
//}
}

View File

@@ -1,8 +0,0 @@
using Serein.Library.Api.Enums;
using System;
namespace Serein.Library.Framework.NodeFlow.Tool
{
}

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@@ -1,194 +0,0 @@
namespace Serein.Library.Framework.NodeFlow.Tool
{
#region tsk工具 (
/*public class LockManager
{
private readonly ConcurrentDictionary<string, LockQueue> _locks = new ConcurrentDictionary<string, LockQueue>();
public void CreateLock(string name)
{
_locks.TryAdd(name, new LockQueue());
}
public async Task AcquireLockAsync(string name, CancellationToken cancellationToken = default)
{
if (!_locks.ContainsKey(name))
{
throw new ArgumentException($"Lock with name '{name}' does not exist.");
}
var lockQueue = _locks[name];
var tcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
lock (lockQueue.Queue)
{
lockQueue.Queue.Enqueue(tcs);
if (lockQueue.Queue.Count == 1)
{
tcs.SetResult(true);
}
}
await tcs.Task.ConfigureAwait(false);
// 处理取消操作
if (cancellationToken.CanBeCanceled)
{
cancellationToken.Register(() =>
{
lock (lockQueue.Queue)
{
if (lockQueue.Queue.Contains(tcs))
{
tcs.TrySetCanceled();
}
}
});
}
}
public void ReleaseLock(string name)
{
if (!_locks.ContainsKey(name))
{
throw new ArgumentException($"Lock with name '{name}' does not exist.");
}
var lockQueue = _locks[name];
lock (lockQueue.Queue)
{
if (lockQueue.Queue.Count > 0)
{
lockQueue.Queue.Dequeue();
if (lockQueue.Queue.Count > 0)
{
var next = lockQueue.Queue.Peek();
next.SetResult(true);
}
}
}
}
private class LockQueue
{
public Queue<TaskCompletionSource<bool>> Queue { get; } = new Queue<TaskCompletionSource<bool>>();
}
}
public interface ITaskResult
{
object Result { get; }
}
public class TaskResult<T> : ITaskResult
{
public TaskResult(T result)
{
Result = result;
}
public T Result { get; }
object ITaskResult.Result => Result;
}
public class DynamicTasks
{
private static readonly ConcurrentDictionary<string, Task<ITaskResult>> TaskGuidPairs = new();
public static Task<ITaskResult> GetTask(string Guid)
{
TaskGuidPairs.TryGetValue(Guid, out Task<ITaskResult> task);
return task;
}
public static bool AddTask<T>(string Guid, T result)
{
var task = Task.FromResult<ITaskResult>(new TaskResult<T>(result));
return TaskGuidPairs.TryAdd(Guid, task);
}
}
public class TaskNodeManager
{
private readonly ConcurrentDictionary<string, TaskQueue> _taskQueues = new ConcurrentDictionary<string, TaskQueue>();
public void CreateTaskNode(string name)
{
_taskQueues.TryAdd(name, new TaskQueue());
}
public async Task WaitForTaskNodeAsync(string name, CancellationToken cancellationToken = default)
{
if (!_taskQueues.ContainsKey(name))
{
throw new ArgumentException($"Task node with name '{name}' does not exist.");
}
var taskQueue = _taskQueues[name];
var tcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
lock (taskQueue.Queue)
{
taskQueue.Queue.Enqueue(tcs);
if (taskQueue.Queue.Count == 1)
{
tcs.SetResult(true);
}
}
await tcs.Task.ConfigureAwait(false);
// 处理取消操作
if (cancellationToken.CanBeCanceled)
{
cancellationToken.Register(() =>
{
lock (taskQueue.Queue)
{
if (taskQueue.Queue.Contains(tcs))
{
tcs.TrySetCanceled();
}
}
});
}
}
public void CompleteTaskNode(string name)
{
if (!_taskQueues.ContainsKey(name))
{
throw new ArgumentException($"Task node with name '{name}' does not exist.");
}
var taskQueue = _taskQueues[name];
lock (taskQueue.Queue)
{
if (taskQueue.Queue.Count > 0)
{
taskQueue.Queue.Dequeue();
if (taskQueue.Queue.Count > 0)
{
var next = taskQueue.Queue.Peek();
next.SetResult(true);
}
}
}
}
private class TaskQueue
{
public Queue<TaskCompletionSource<bool>> Queue { get; } = new Queue<TaskCompletionSource<bool>>();
}
}*/
#endregion
}

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@@ -1,65 +0,0 @@
using Serein.Library.Enums;
using System;
using System.Collections.Concurrent;
using System.Threading.Tasks;
namespace Serein.Library.Framework.NodeFlow.Tool
{
public class TcsSignalException : Exception
{
public FlowStateType FsState { get; set; }
public TcsSignalException(string message) : base(message)
{
FsState = FlowStateType.Error;
}
}
public class TcsSignal<TSignal> where TSignal : struct, Enum
{
//public ConcurrentDictionary<TSignal, Queue<TaskCompletionSource<object>>> TcsEvent { get; } = new();
public ConcurrentDictionary<TSignal, TaskCompletionSource<object>> TcsEvent { get; } = new ConcurrentDictionary<TSignal, TaskCompletionSource<object>>();
public ConcurrentDictionary<TSignal, object> TcsLock { get; } = new ConcurrentDictionary<TSignal, object>();
/// <summary>
/// 触发信号
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="signal">信号</param>
/// <param name="value">传递的参数</param>
/// <returns>是否成功触发</returns>
public bool TriggerSignal<T>(TSignal signal, T value)
{
var tcsLock = TcsLock.GetOrAdd(signal, new object());
lock (tcsLock)
{
if (TcsEvent.TryRemove(signal, out var waitTcs))
{
waitTcs.SetResult(value);
return true;
}
return false;
}
}
public TaskCompletionSource<object> CreateTcs(TSignal signal)
{
var tcsLock = TcsLock.GetOrAdd(signal, new object());
lock (tcsLock)
{
var tcs = TcsEvent.GetOrAdd(signal, new TaskCompletionSource<object>());
return tcs;
}
}
public void CancelTask()
{
foreach (var tcs in TcsEvent.Values)
{
tcs.SetException(new TcsSignalException("任务取消"));
}
TcsEvent.Clear();
}
}
}

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@@ -1,186 +0,0 @@
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
namespace Serein.Tool
{
public static class DataHelper
{
/// <summary>
/// 把Object转换为Json字符串
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public static string ToJson(this object obj)
{
IsoDateTimeConverter val = new IsoDateTimeConverter();
val.DateTimeFormat = "yyyy-MM-dd HH:mm:ss";
IsoDateTimeConverter val2 = val;
return JsonConvert.SerializeObject(obj, (JsonConverter[])(object)new JsonConverter[1] { (JsonConverter)val2 });
}
/// <summary>
/// 把Json文本转为实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="input"></param>
/// <returns></returns>
public static T FromJSON<T>(this string input)
{
try
{
if (typeof(T).IsAssignableFrom(typeof(T)))
{
}
return JsonConvert.DeserializeObject<T>(input);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
// return default(T);
return default;
}
}
public static List<T> IListToList<T>(IList list)
{
T[] array = new T[list.Count];
list.CopyTo(array, 0);
return new List<T>(array);
}
public static DataTable GetNewDataTable(DataTable dt, string condition)
{
if (!IsExistRows(dt))
{
if (condition.Trim() == "")
{
return dt;
}
DataTable dataTable = new DataTable();
dataTable = dt.Clone();
DataRow[] array = dt.Select(condition);
for (int i = 0; i < array.Length; i++)
{
dataTable.ImportRow(array[i]);
}
return dataTable;
}
return null;
}
public static bool IsExistRows(DataTable dt)
{
if (dt != null && dt.Rows.Count > 0)
{
return false;
}
return true;
}
public static Hashtable DataTableToHashtable(DataTable dt)
{
Hashtable hashtable = new Hashtable();
foreach (DataRow row in dt.Rows)
{
for (int i = 0; i < dt.Columns.Count; i++)
{
string columnName = dt.Columns[i].ColumnName;
hashtable[columnName] = row[columnName];
}
}
return hashtable;
}
public static DataTable ListToDataTable<T>(List<T> entitys)
{
if (entitys == null || entitys.Count < 1)
{
return null;
}
Type type = entitys[0].GetType();
PropertyInfo[] properties = type.GetProperties();
DataTable dataTable = new DataTable();
for (int i = 0; i < properties.Length; i++)
{
dataTable.Columns.Add(properties[i].Name);
}
foreach (T entity in entitys)
{
object obj = entity;
if (obj.GetType() != type)
{
throw new Exception("要转换的集合元素类型不一致");
}
object[] array = new object[properties.Length];
for (int j = 0; j < properties.Length; j++)
{
array[j] = properties[j].GetValue(obj, null);
}
dataTable.Rows.Add(array);
}
return dataTable;
}
public static string DataTableToXML(DataTable dt)
{
if (dt != null && dt.Rows.Count > 0)
{
StringWriter stringWriter = new StringWriter();
dt.WriteXml((TextWriter)stringWriter);
return stringWriter.ToString();
}
return string.Empty;
}
public static string DataSetToXML(DataSet ds)
{
if (ds != null)
{
StringWriter stringWriter = new StringWriter();
ds.WriteXml((TextWriter)stringWriter);
return stringWriter.ToString();
}
return string.Empty;
}
}
}