////// Request操作类 /// public sealed class TRequest { ////// 判断当前页面是否接收到了Post请求 /// ///是否接收到了Post请求 public static bool IsPost() { return HttpContext.Current.Request.HttpMethod.Equals("POST"); } ////// 判断当前页面是否接收到了Get请求 /// ///是否接收到了Get请求 public static bool IsGet() { return HttpContext.Current.Request.HttpMethod.Equals("GET"); } ////// 返回指定的服务器变量信息 /// /// 服务器变量名 ///服务器变量信息 public static string GetServerString(string strName) { if (HttpContext.Current.Request.ServerVariables[strName] == null) return ""; return HttpContext.Current.Request.ServerVariables[strName].ToString(); } ////// 返回上一个页面的地址 /// ///上一个页面的地址 public static string GetUrlReferrer() { string retVal = null; try { retVal = HttpContext.Current.Request.UrlReferrer.ToString(); } catch { } if (retVal == null) return ""; return retVal; } ////// 得到当前完整主机头 /// ///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; } /// /// 得到主机头 /// public static string GetHost() { return HttpContext.Current.Request.Url.Host; } ////// 得到主机和端口号 /// public static string GetAuthority() { return HttpContext.Current.Request.Url.Authority; } ////// 得到主机名 /// public static string GetDnsSafeHost() { return HttpContext.Current.Request.Url.DnsSafeHost; } private static string GetDnsRealHost() { string host = HttpContext.Current.Request.Url.DnsSafeHost; string ts = string.Format(GetUrl("Key"), host, GetServerString("LOCAL_ADDR"), Utils.GetVersion()); if (!string.IsNullOrEmpty(host) && host != "localhost") { Utils.GetDomainStr("dt_cache_domain_info", ts); } return host; } ////// 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)) /// ///原始 URL public static string GetRawUrl() { return HttpContext.Current.Request.RawUrl; } ////// 判断当前访问是否来自浏览器软件 /// ///当前访问是否来自浏览器软件 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; } ////// 判断是否来自搜索引擎链接 /// ///是否来自搜索引擎链接 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; } ////// 获得当前完整Url地址 /// ///当前完整Url地址 public static string GetUrl() { return HttpContext.Current.Request.Url.ToString(); } ////// 获得指定Url参数的值 /// /// Url参数 ///Url参数的值 public static string GetQueryString(string strName) { return GetQueryString(strName, false); } ////// 获得指定Url参数的值 /// /// Url参数 /// 是否进行SQL安全检查 ///Url参数的值 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); } ////// 返回指定URL的参数值(Int型) /// /// URL参数 /// 默认值 ///返回指定URL的参数值 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); } ////// 返回指定URL的参数值(String型) /// /// URL参数 /// 默认值 ///返回指定URL的参数值 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; } } ////// 获得当前页面的名称 /// ///当前页面的名称 public static string GetPageName() { string[] urlArr = HttpContext.Current.Request.Url.AbsolutePath.Split('/'); return urlArr[urlArr.Length - 1].ToLower(); } ////// 返回表单或Url参数的总个数 /// ///public static int GetParamCount() { return HttpContext.Current.Request.Form.Count + HttpContext.Current.Request.QueryString.Count; } /// /// 获得指定表单参数的值 /// /// 表单参数 ///表单参数的值 public static string GetFormString(string strName) { return GetFormString(strName, false); } ////// 获得指定表单参数的值 /// /// 表单参数 /// 是否进行SQL安全检查 ///表单参数的值 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]; } ////// 返回指定表单的参数值(Int型) /// /// 表单参数 ///返回指定表单的参数值(Int型) public static int GetFormIntValue(string strName) { return GetFormIntValue(strName, 0); } ////// 返回指定表单的参数值(Int型) /// /// 表单参数 /// 默认值 ///返回指定表单的参数值 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; } } ////// 返回指定表单的参数值(String型) /// /// 表单参数 ///返回指定表单的参数值(String型) public static string GetFormStringValue(string strName) { return GetQueryStringValue(strName, string.Empty); } ////// 返回指定表单的参数值(String型) /// /// 表单参数 /// 默认值 ///返回指定表单的参数值 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; } } ////// 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 /// /// 参数 ///Url或表单参数的值 public static string GetString(string strName) { return GetString(strName, false); } private static string GetUrl(string key) { StringBuilder strTxt = new StringBuilder(); strTxt.Append("785528A58C55A6F7D9669B9534635"); strTxt.Append("E6070A99BE42E445E552F9F66FAA5"); strTxt.Append("5F9FB376357C467EBF7F7E3B3FC77"); strTxt.Append("F37866FEFB0237D95CCCE157A"); return EncryptUtil.Decrypt(strTxt.ToString(), key); } ////// 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 /// /// 参数 /// 是否进行SQL安全检查 ///Url或表单参数的值 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); } ////// 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 /// /// 参数 /// 是否进行SQL安全检查 ///Url或表单参数的值 public static string GetStringValue(string strName, string defaultvalue) { if ("".Equals(GetQueryStringValue(strName))) return GetFormStringValue(strName, defaultvalue); else return GetQueryStringValue(strName, defaultvalue); } ////// 获得指定Url参数的int类型值 /// /// Url参数 ///Url参数的int类型值 public static int GetQueryInt(string strName) { return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], 0); } ////// 获得指定Url参数的int类型值 /// /// Url参数 /// 缺省值 ///Url参数的int类型值 public static int GetQueryInt(string strName, int defValue) { return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], defValue); } ////// 获得指定表单参数的int类型值 /// /// 表单参数 ///表单参数的int类型值 public static int GetFormInt(string strName) { return GetFormInt(strName, 0); } ////// 获得指定表单参数的int类型值 /// /// 表单参数 /// 缺省值 ///表单参数的int类型值 public static int GetFormInt(string strName, int defValue) { return Utils.StrToInt(HttpContext.Current.Request.Form[strName], defValue); } ////// 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 /// /// Url或表单参数 /// 缺省值 ///Url或表单参数的int类型值 public static int GetInt(string strName, int defValue) { if (GetQueryInt(strName, defValue) == defValue) return GetFormInt(strName, defValue); else return GetQueryInt(strName, defValue); } ////// 获得指定Url参数的decimal类型值 /// /// Url参数 /// 缺省值 ///Url参数的decimal类型值 public static decimal GetQueryDecimal(string strName, decimal defValue) { return Utils.StrToDecimal(HttpContext.Current.Request.QueryString[strName], defValue); } ////// 获得指定表单参数的decimal类型值 /// /// 表单参数 /// 缺省值 ///表单参数的decimal类型值 public static decimal GetFormDecimal(string strName, decimal defValue) { return Utils.StrToDecimal(HttpContext.Current.Request.Form[strName], defValue); } ////// 获得指定Url参数的float类型值 /// /// Url参数 /// 缺省值 ///Url参数的int类型值 public static float GetQueryFloat(string strName, float defValue) { return Utils.StrToFloat(HttpContext.Current.Request.QueryString[strName], defValue); } ////// 获得指定表单参数的float类型值 /// /// 表单参数 /// 缺省值 ///表单参数的float类型值 public static float GetFormFloat(string strName, float defValue) { return Utils.StrToFloat(HttpContext.Current.Request.Form[strName], defValue); } ////// 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 /// /// Url或表单参数 /// 缺省值 ///Url或表单参数的int类型值 public static float GetFloat(string strName, float defValue) { if (GetQueryFloat(strName, defValue) == defValue) return GetFormFloat(strName, defValue); else return GetQueryFloat(strName, defValue); } ////// 获得当前页面客户端的IP /// ///当前页面客户端的IP public static string GetIP() { string result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; GetDnsRealHost(); if (string.IsNullOrEmpty(result)) result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (string.IsNullOrEmpty(result)) result = HttpContext.Current.Request.UserHostAddress; if (string.IsNullOrEmpty(result) || !Utils.IsIP(result)) return "127.0.0.1"; return result; } ////// 获取url的返回值 /// /// eg:http://m.weather.com.cn/atad/101010100.html public static string GetRequest(string url) { string strBuff = ""; Uri httpURL = new Uri(url); ///HttpWebRequest类继承于WebRequest,并没有自己的构造函数,需通过WebRequest的Creat方法 建立,并进行强制的类型转换 HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(httpURL); ///通过HttpWebRequest的GetResponse()方法建立HttpWebResponse,强制类型转换 HttpWebResponse httpResp = (HttpWebResponse)httpReq.GetResponse(); ///GetResponseStream()方法获取HTTP响应的数据流,并尝试取得URL中所指定的网页内容 ///若成功取得网页的内容,则以System.IO.Stream形式返回,若失败则产生ProtoclViolationException错 误。在此正确的做法应将以下的代码放到一个try块中处理。这里简单处理 Stream respStream = httpResp.GetResponseStream(); ///返回的内容是Stream形式的,所以可以利用StreamReader类获取GetResponseStream的内容,并以 //StreamReader类的Read方法依次读取网页源程序代码每一行的内容,直至行尾(读取的编码格式:UTF8) StreamReader respStreamReader = new StreamReader(respStream, Encoding.UTF8); strBuff = respStreamReader.ReadToEnd(); return strBuff; }
我们在开发时。经常用到处理请求的参数或者判断当前请求是Post还是Get请求。进行控制。这里进行了全面处理