/// <summary> /// Request /// </summary> public static class RequestHelper { /// <summary> /// 返回请求的int /// </summary> /// <param name="key">键</param> /// <param name="_default">默认值</param> /// <param name="max">最大值</param> /// <param name="min">最小值</param> /// <returns></returns> public static long GetLong(string key, long _default, long max, long min) { string keyValue = GetRequest(key); long re; if (keyValue.TryParseToLong(out re)) { if (re > max) re = max; if (re < min) re = min; return re; } return _default; } /// <summary> /// 返回IP地址的MAC地址 /// </summary> /// <param name="dest"></param> /// <param name="host"></param> /// <param name="mac"></param> /// <param name="length"></param> /// <returns></returns> [DllImport("Iphlpapi.dll")] private static extern int SendARP(Int32 dest, Int32 host, ref Int64 mac, ref Int32 length); /// <summary> /// 通过IP返回IP的int数字表示法 /// </summary> /// <param name="ip"></param> /// <returns></returns> [DllImport("Ws2_32.dll")] private static extern Int32 inet_addr(string ip); public static HttpContext Current { get { return HttpContext.Current; } } /// <summary> /// 根据用户请求返回对应的类型 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="model"></param> /// <returns></returns> public static T GetClass<T>(T model) where T : class ,new() { return GetClass(HttpContext.Current.Request,model); } /// <summary> /// 根据用户请求返回对应的类型 /// </summary> /// <typeparam name="T"></typeparam> /// <returns></returns> public static T GetClass<T>() where T : class ,new() { return GetClass<T>(null); } /// <summary> /// 返回请求的值 /// </summary> /// <param name="key"></param> /// <returns></returns> public static string GetRequest(string key) { string re = Current.Request.Form[key]; if (String.IsNullOrEmpty(re)) { re = Current.Request.QueryString[key]; } return re ?? ""; } /// <summary> /// 返回从哪个页面来到此页面 /// </summary> /// <returns></returns> public static string GetFromPage() { return GetRequest(FromPageKey); } public const string FromPageKey = "FromPage"; public static Guid GetGuid() { return GetGuid("ID"); } /// <summary> /// 返回用户请求数据中的GUID /// </summary> /// <param name="key"></param> /// <returns></returns> public static Guid GetGuid(string key) { string guid = GetRequest(key); try { return new Guid(guid); } catch { return Guid.Empty; } } /// <summary> /// 返回用户的IP /// </summary> public static string ClientIP { get { return Current.Request.ServerVariables["REMOTE_ADDR"]; } } /// <summary> /// 返回排序字符串 /// </summary> /// <returns></returns> public static string GetOrderField() { return GetRequest("Order"); } /// <summary> /// 返回是否为正序排序 /// </summary> /// <returns></returns> public static bool GetSortType() { return GetRequest("SortType") == "asc"; } /// <summary> /// 返回请求的Int,默认为1 /// </summary> /// <param name="key"></param> /// <returns></returns> public static int GetIntDefault1(string key) { string keyValue = GetRequest(key); int re; if (keyValue.TryParseToInt(out re)) { return re; } return 1; } /// <summary> /// 返回请求的int /// </summary> /// <param name="key">键</param> /// <param name="_default">默认值</param> /// <param name="max">最大值</param> /// <param name="min">最小值</param> /// <returns></returns> public static int GetInt(string key, int _default, int max, int min) { string keyValue = GetRequest(key); int re; if (keyValue.TryParseToInt(out re)) { if (re > max) re = max; if (re < min) re = min; return re; } return _default; } /// <summary> /// 从请求中返回一个BOOL /// </summary> /// <param name="key"></param> /// <returns></returns> public static bool GetBool(string key) { return GetBool(key, s=>s.TryParseToBool()); } /// <summary> /// 从请求中返回一个BOOL /// </summary> /// <param name="key"></param> /// <param name="convertFun">自定义转换方法</param> /// <returns></returns> public static bool GetBool(string key,Func<string, bool> convertFun) { var value = GetRequest(key); return convertFun(value); } /// <summary> /// 返回用户请求数据中的分页大小 /// </summary> /// <returns></returns> public static int GetPageSize() { return GetInt("PageSize", 10, 100, 1); } /// <summary> /// 返回请求中的PageIndex /// </summary> /// <returns></returns> public static int GetPageIndex() { return GetIntDefault1("PageIndex"); } /// <summary> /// 页面是否用于选择 /// </summary> public static bool IsSelect { get { return GetRequest("IsSelect") != ""; } } /// <summary> /// 是否是多选 /// </summary> public static bool IsMultSelect { get { return GetRequest("IsMultSelect") != ""; } } /// <summary> /// 返回当前操作是否是添加数据 /// </summary> public static bool IsAdd { get { string re = GetRequest("option").ToLower(); return re == "" || re == "add"; } } /// <summary> /// 返回当前操作是否是修改数据 /// </summary> public static bool IsEdit { get { return GetRequest("option").ToLower() == "edit"; } } /// <summary> /// 根据用户请求返回对应的类型 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="request"></param> /// <param name="model"></param> /// <returns></returns> public static T GetClass<T>(HttpRequest request, T model) where T : class ,new() { T t = model ?? new T(); Type type = typeof(T); PropertyInfo[] properites = type.GetProperties();//得到实体类属性的集合 foreach (PropertyInfo propertyInfo in properites) { string requestStr = GetRequest(request, propertyInfo.Name); if (!String.IsNullOrEmpty(requestStr)) { if (propertyInfo.PropertyType == typeof (int)) { type.GetProperty(propertyInfo.Name).SetValue(t, requestStr.TryParseToInt(), null); } if (propertyInfo.PropertyType == typeof(int?)) { type.GetProperty(propertyInfo.Name).SetValue(t, requestStr.TryParseToInt(), null); } else if (propertyInfo.PropertyType == typeof (DateTime)) { type.GetProperty(propertyInfo.Name).SetValue(t, requestStr.TryParseToDateTime(), null); } else if (propertyInfo.PropertyType == typeof(DateTime?)) { type.GetProperty(propertyInfo.Name).SetValue(t, requestStr.TryParseToDateTimeNull(), null); } else if (propertyInfo.PropertyType == typeof(Guid?)) { type.GetProperty(propertyInfo.Name).SetValue(t, requestStr.TryParseToGuidNull(), null); } else if (propertyInfo.PropertyType == typeof(byte?)) { type.GetProperty(propertyInfo.Name).SetValue(t, requestStr.TryParseToByte(), null); } else if (propertyInfo.PropertyType == typeof(Guid)) { Guid g = requestStr.TryParseToGuid(); if (g != Guid.Empty) { type.GetProperty(propertyInfo.Name).SetValue(t, g, null); } } else if (propertyInfo.PropertyType == typeof (string)) { type.GetProperty(propertyInfo.Name).SetValue(t, requestStr, null); } } } return t; } /// <summary> /// 返回请求的值 /// </summary> /// <param name="request"> </param> /// <param name="key"></param> /// <returns></returns> public static string GetRequest(HttpRequest request, string key) { string re = request.Form[key]; if (String.IsNullOrEmpty(re)) { re = request.QueryString[key]; } return re ?? ""; } /// <summary> /// 返回用户请求的数据 /// </summary> /// <returns></returns> public static string GetClientData() { var sb = new StringBuilder(); if (HttpContext.Current != null) { sb.AppendLine("Request Header数据:"); foreach (string formKey in HttpContext.Current.Request.Headers.Keys) { sb.AppendLine(String.Format(" {0}={1};", formKey, HttpContext.Current.Request.Headers[formKey])); } sb.AppendLine("Form数据:"); foreach (string formKey in HttpContext.Current.Request.Form.Keys) { sb.AppendLine(String.Format(" {0}={1};", formKey, HttpContext.Current.Request.Form[formKey])); } sb.AppendLine("Cookie数据:"); foreach (string formKey in HttpContext.Current.Request.Cookies.Keys) { sb.AppendLine(String.Format(" {0}={1};", formKey, HttpContext.Current.Request.Cookies[formKey])); } sb.AppendLine("ServerVariables数据:"); foreach (string formKey in HttpContext.Current.Request.ServerVariables.Keys) { sb.AppendLine(String.Format(" {0}={1};", formKey, HttpContext.Current.Request.ServerVariables[formKey])); } } return sb.ToString(); } /// <summary> /// 返回客户的MAC地址 /// </summary> /// <returns></returns> public static string GetMAC() { if (Current.Request.UserHostAddress != null) { string strClientIP = Current.Request.UserHostAddress.Trim(); Int32 ldest = inet_addr(strClientIP); //目的地的ip //Int32 lhost = inet_addr(""); //本地服务器的ip Int64 macinfo = new Int64(); Int32 len = 6; int res = SendARP(ldest, 0, ref macinfo, ref len); string mac_src = macinfo.ToString("X"); if (mac_src == "0") { return String.Empty; } while (mac_src.Length < 12) { mac_src = mac_src.Insert(0, "0"); } string mac_dest = ""; for (int i = 0; i < 11; i++) { if (0 == (i % 2)) { if (i == 10) { mac_dest = mac_dest.Insert(0, mac_src.Substring(i, 2)); } else { mac_dest = "-" + mac_dest.Insert(0, mac_src.Substring(i, 2)); } } } return mac_dest; } return string.Empty; } public static string GetAbsolutePathAndQuery() { return Current.Request.Url.PathAndQuery; } public static string GetAbsolutePathNoQuery() { int index = Current.Request.Url.AbsolutePath.LastIndexOf("?"); string re = Current.Request.Url.AbsolutePath; if (index > -1) { re = re.Substring(0, index - 1); } return re; } }
