/// <summary> /// 判断当前页面是否接收到了Post请求 /// </summary> /// <returns>是否接收到了Post请求</returns> public static bool IsPost() { return HttpContext.Current.Request.HttpMethod.Equals("POST"); } /// <summary> /// 判断当前页面是否接收到了Get请求 /// </summary> /// <returns>是否接收到了Get请求</returns> public static bool IsGet() { return HttpContext.Current.Request.HttpMethod.Equals("GET"); } /// <summary> /// 返回指定的服务器变量信息 /// </summary> /// <param name="strName">服务器变量名</param> /// <returns>服务器变量信息</returns> public static string GetServerString(string strName) { if (HttpContext.Current.Request.ServerVariables[strName] == null) return ""; return HttpContext.Current.Request.ServerVariables[strName].ToString(); } /// <summary> /// 返回上一个页面的地址 /// </summary> /// <returns>上一个页面的地址</returns> public static string GetUrlReferrer() { string retVal = null; try { retVal = HttpContext.Current.Request.UrlReferrer.ToString(); } catch { } if (retVal == null) return ""; return retVal; } /// <summary> /// 得到当前完整主机头 /// </summary> /// <returns></returns> public static string GetCurrentFullHost() { HttpRequest request = System.Web.HttpContext.Current.Request; if (!request.Url.IsDefaultPort) return string.Format("{0}:{1}", request.Url.Host, request.Url.Port.ToString()); return request.Url.Host; } /// <summary> /// 得到主机头 /// </summary> public static string GetHost() { return HttpContext.Current.Request.Url.Host; } /// <summary> /// 得到主机名 /// </summary> public static string GetDnsSafeHost() { return HttpContext.Current.Request.Url.DnsSafeHost; } /// <summary> /// 获取当前请求的原始 URL(URL 中域信息之后的部分,包括查询字符串(如果存在)) /// </summary> /// <returns>原始 URL</returns> public static string GetRawUrl() { return HttpContext.Current.Request.RawUrl; } /// <summary> /// 判断当前访问是否来自浏览器软件 /// </summary> /// <returns>当前访问是否来自浏览器软件</returns> public static bool IsBrowserGet() { string[] BrowserName = { "ie", "opera", "netscape", "mozilla", "konqueror", "firefox" }; string curBrowser = HttpContext.Current.Request.Browser.Type.ToLower(); for (int i = 0; i < BrowserName.Length; i ) { if (curBrowser.IndexOf(BrowserName[i]) >= 0) return true; } return false; } /// <summary> /// 判断是否来自搜索引擎链接 /// </summary> /// <returns>是否来自搜索引擎链接</returns> public static bool IsSearchEnginesGet() { if (HttpContext.Current.Request.UrlReferrer == null) return false; string[] SearchEngine = { "google", "yahoo", "msn", "baidu", "sogou", "sohu", "sina", "163", "lycos", "tom", "yisou", "iask", "soso", "gougou", "zhongsou" }; string tmpReferrer = HttpContext.Current.Request.UrlReferrer.ToString().ToLower(); for (int i = 0; i < SearchEngine.Length; i ) { if (tmpReferrer.IndexOf(SearchEngine[i]) >= 0) return true; } return false; } /// <summary> /// 获得当前完整Url地址 /// </summary> /// <returns>当前完整Url地址</returns> public static string GetUrl() { return HttpContext.Current.Request.Url.ToString(); } /// <summary> /// 获得指定Url参数的值 /// </summary> /// <param name="strName">Url参数</param> /// <returns>Url参数的值</returns> public static string GetQueryString(string strName) { return GetQueryString(strName, false); } /// <summary> /// 获得指定Url参数的值 /// </summary> /// <param name="strName">Url参数</param> /// <param name="sqlSafeCheck">是否进行SQL安全检查</param> /// <returns>Url参数的值</returns> public static string GetQueryString(string strName, bool sqlSafeCheck) { if (HttpContext.Current.Request.QueryString[strName] == null) return ""; if (sqlSafeCheck && !Utils.IsSafeSqlString(HttpContext.Current.Request.QueryString[strName])) return "unsafe string"; return HttpContext.Current.Request.QueryString[strName]; } public static int GetQueryIntValue(string strName) { return GetQueryIntValue(strName, 0); } /// <summary> /// 返回指定URL的参数值(Int型) /// </summary> /// <param name="strName">URL参数</param> /// <param name="defaultvalue">默认值</param> /// <returns>返回指定URL的参数值</returns> public static int GetQueryIntValue(string strName, int defaultvalue) { if (HttpContext.Current.Request.QueryString[strName] == null || HttpContext.Current.Request.QueryString[strName].ToString() == string.Empty) return defaultvalue; else { Regex obj = new Regex("\\d "); Match objmach = obj.Match(HttpContext.Current.Request.QueryString[strName].ToString()); if (objmach.Success) return Convert.ToInt32(objmach.Value); else return defaultvalue; } } public static string GetQueryStringValue(string strName) { return GetQueryStringValue(strName, string.Empty); } /// <summary> /// 返回指定URL的参数值(String型) /// </summary> /// <param name="strName">URL参数</param> /// <param name="defaultvalue">默认值</param> /// <returns>返回指定URL的参数值</returns> public static string GetQueryStringValue(string strName, string defaultvalue) { if (HttpContext.Current.Request.QueryString[strName] == null || HttpContext.Current.Request.QueryString[strName].ToString() == string.Empty) return defaultvalue; else { Regex obj = new Regex("\\w "); Match objmach = obj.Match(HttpContext.Current.Request.QueryString[strName].ToString()); if (objmach.Success) return objmach.Value; else return defaultvalue; } } /// <summary> /// 获得当前页面的名称 /// </summary> /// <returns>当前页面的名称</returns> public static string GetPageName() { string[] urlArr = HttpContext.Current.Request.Url.AbsolutePath.Split('/'); return urlArr[urlArr.Length - 1].ToLower(); } /// <summary> /// 返回表单或Url参数的总个数 /// </summary> /// <returns></returns> public static int GetParamCount() { return HttpContext.Current.Request.Form.Count HttpContext.Current.Request.QueryString.Count; } /// <summary> /// 获得指定表单参数的值 /// </summary> /// <param name="strName">表单参数</param> /// <returns>表单参数的值</returns> public static string GetFormString(string strName) { return GetFormString(strName, false); } /// <summary> /// 获得指定表单参数的值 /// </summary> /// <param name="strName">表单参数</param> /// <param name="sqlSafeCheck">是否进行SQL安全检查</param> /// <returns>表单参数的值</returns> public static string GetFormString(string strName, bool sqlSafeCheck) { if (HttpContext.Current.Request.Form[strName] == null) return ""; if (sqlSafeCheck && !Utils.IsSafeSqlString(HttpContext.Current.Request.Form[strName])) return "unsafe string"; return HttpContext.Current.Request.Form[strName]; } /// <summary> /// 返回指定表单的参数值(Int型) /// </summary> /// <param name="strName">表单参数</param> /// <returns>返回指定表单的参数值(Int型)</returns> public static int GetFormIntValue(string strName) { return GetFormIntValue(strName, 0); } /// <summary> /// 返回指定表单的参数值(Int型) /// </summary> /// <param name="strName">表单参数</param> /// <param name="defaultvalue">默认值</param> /// <returns>返回指定表单的参数值</returns> public static int GetFormIntValue(string strName, int defaultvalue) { if (HttpContext.Current.Request.Form[strName] == null || HttpContext.Current.Request.Form[strName].ToString() == string.Empty) return defaultvalue; else { Regex obj = new Regex("\\d "); Match objmach = obj.Match(HttpContext.Current.Request.Form[strName].ToString()); if (objmach.Success) return Convert.ToInt32(objmach.Value); else return defaultvalue; } } /// <summary> /// 返回指定表单的参数值(String型) /// </summary> /// <param name="strName">表单参数</param> /// <returns>返回指定表单的参数值(String型)</returns> public static string GetFormStringValue(string strName) { return GetQueryStringValue(strName, string.Empty); } /// <summary> /// 返回指定表单的参数值(String型) /// </summary> /// <param name="strName">表单参数</param> /// <param name="defaultvalue">默认值</param> /// <returns>返回指定表单的参数值</returns> public static string GetFormStringValue(string strName, string defaultvalue) { if (HttpContext.Current.Request.Form[strName] == null || HttpContext.Current.Request.Form[strName].ToString() == string.Empty) return defaultvalue; else { Regex obj = new Regex("\\w "); Match objmach = obj.Match(HttpContext.Current.Request.Form[strName].ToString()); if (objmach.Success) return objmach.Value; else return defaultvalue; } } /// <summary> /// 获得Url或表单参数的值, 先判断Url参数是否为空字符串, 如为True则返回表单参数的值 /// </summary> /// <param name="strName">参数</param> /// <returns>Url或表单参数的值</returns> public static string GetString(string strName) { return GetString(strName, false); } /// <summary> /// 获得Url或表单参数的值, 先判断Url参数是否为空字符串, 如为True则返回表单参数的值 /// </summary> /// <param name="strName">参数</param> /// <param name="sqlSafeCheck">是否进行SQL安全检查</param> /// <returns>Url或表单参数的值</returns> public static string GetString(string strName, bool sqlSafeCheck) { if ("".Equals(GetQueryString(strName))) return GetFormString(strName, sqlSafeCheck); else return GetQueryString(strName, sqlSafeCheck); } public static string GetStringValue(string strName) { return GetStringValue(strName, string.Empty); } /// <summary> /// 获得Url或表单参数的值, 先判断Url参数是否为空字符串, 如为True则返回表单参数的值 /// </summary> /// <param name="strName">参数</param> /// <param name="sqlSafeCheck">是否进行SQL安全检查</param> /// <returns>Url或表单参数的值</returns> public static string GetStringValue(string strName, string defaultvalue) { if ("".Equals(GetQueryStringValue(strName))) return GetFormStringValue(strName, defaultvalue); else return GetQueryStringValue(strName, defaultvalue); } /// <summary> /// 获得指定Url参数的int类型值 /// </summary> /// <param name="strName">Url参数</param> /// <returns>Url参数的int类型值</returns> public static int GetQueryInt(string strName) { return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], 0); } /// <summary> /// 获得指定Url参数的int类型值 /// </summary> /// <param name="strName">Url参数</param> /// <param name="defValue">缺省值</param> /// <returns>Url参数的int类型值</returns> public static int GetQueryInt(string strName, int defValue) { return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], defValue); } /// <summary> /// 获得指定表单参数的int类型值 /// </summary> /// <param name="strName">表单参数</param> /// <returns>表单参数的int类型值</returns> public static int GetFormInt(string strName) { return GetFormInt(strName, 0); } /// <summary> /// 获得指定表单参数的int类型值 /// </summary> /// <param name="strName">表单参数</param> /// <param name="defValue">缺省值</param> /// <returns>表单参数的int类型值</returns> public static int GetFormInt(string strName, int defValue) { return Utils.StrToInt(HttpContext.Current.Request.Form[strName], defValue); } /// <summary> /// 获得指定Url或表单参数的int类型值, 先判断Url参数是否为缺省值, 如为True则返回表单参数的值 /// </summary> /// <param name="strName">Url或表单参数</param> /// <param name="defValue">缺省值</param> /// <returns>Url或表单参数的int类型值</returns> public static int GetInt(string strName, int defValue) { if (GetQueryInt(strName, defValue) == defValue) return GetFormInt(strName, defValue); else return GetQueryInt(strName, defValue); } /// <summary> /// 获得指定Url参数的decimal类型值 /// </summary> /// <param name="strName">Url参数</param> /// <param name="defValue">缺省值</param> /// <returns>Url参数的decimal类型值</returns> public static decimal GetQueryDecimal(string strName, decimal defValue) { return Utils.StrToDecimal(HttpContext.Current.Request.QueryString[strName], defValue); } /// <summary> /// 获得指定表单参数的decimal类型值 /// </summary> /// <param name="strName">表单参数</param> /// <param name="defValue">缺省值</param> /// <returns>表单参数的decimal类型值</returns> public static decimal GetFormDecimal(string strName, decimal defValue) { return Utils.StrToDecimal(HttpContext.Current.Request.Form[strName], defValue); } /// <summary> /// 获得指定Url参数的float类型值 /// </summary> /// <param name="strName">Url参数</param> /// <param name="defValue">缺省值</param> /// <returns>Url参数的int类型值</returns> public static float GetQueryFloat(string strName, float defValue) { return Utils.StrToFloat(HttpContext.Current.Request.QueryString[strName], defValue); } /// <summary> /// 获得指定表单参数的float类型值 /// </summary> /// <param name="strName">表单参数</param> /// <param name="defValue">缺省值</param> /// <returns>表单参数的float类型值</returns> public static float GetFormFloat(string strName, float defValue) { return Utils.StrToFloat(HttpContext.Current.Request.Form[strName], defValue); } /// <summary> /// 获得指定Url或表单参数的float类型值, 先判断Url参数是否为缺省值, 如为True则返回表单参数的值 /// </summary> /// <param name="strName">Url或表单参数</param> /// <param name="defValue">缺省值</param> /// <returns>Url或表单参数的int类型值</returns> public static float GetFloat(string strName, float defValue) { if (GetQueryFloat(strName, defValue) == defValue) return GetFormFloat(strName, defValue); else return GetQueryFloat(strName, defValue); } /// <summary> /// 获得当前页面客户端的IP /// </summary> /// <returns>当前页面客户端的IP</returns> public static string GetIP() { try { string result = String.Empty; result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (string.IsNullOrEmpty(result)) { result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } if (string.IsNullOrEmpty(result)) { result = HttpContext.Current.Request.UserHostAddress; } if (string.IsNullOrEmpty(result) || !Utils.IsIP(result)) { return "127.0.0.1"; } return result; } catch (Exception ex) { System.Diagnostics.Trace.Write(ex.Message); return HttpContext.Current.Request.UserHostAddress; } 来源：http://www.icode9.com/content-1-26881.html
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