C#.NET Request相关操作

using System;
using System.Web;
using System.Text;

namespace Pub.Class
{
    /// <summary>
    /// Requests操作类
    /// </summary>
    public class Request2 {
        #region Get/GetInt/GetFloat
        /// <summary>
        /// 接收传值
        /// </summary>
        /// <param name="VarName">参数名称</param>
        /// <returns>参数对应的值</returns>
        static public String Get(String VarName)
        {
            string varValue = "";
            if (HttpContext.Current.Request[VarName]!=null) 
                varValue = HttpContext.Current.Request[VarName].ToString();
            return varValue;
        }
        /// <summary>
        /// GetInt
        /// </summary>
        /// <param name="varName"></param>
        /// <param name="defValue"></param>
        /// <returns></returns>
        static public int GetInt(string varName, int defValue) { return Get(varName).ToInt(defValue); }
        /// <summary>
        /// GetFloat
        /// </summary>
        /// <param name="varName"></param>
        /// <param name="defValue"></param>
        /// <returns></returns>
        static public float GetFloat(string varName, int defValue) { return Get(varName).ToFloat(defValue); }
        #endregion

        #region GetQ/GetQInt/GetQFloat
        /// <summary>
        /// 取URL上的参数
        /// </summary>
        /// <param name="VarName">参数名</param>
        /// <returns>返回参数</returns>
        static public String GetQ(String VarName)
        {
            string varValue = "";
            if (HttpContext.Current.Request.QueryString[VarName] != null)
                varValue = HttpContext.Current.Request.QueryString[VarName].ToString();
            return varValue;
        }
        /// <summary>
        /// GetQInt
        /// </summary>
        /// <param name="varName"></param>
        /// <param name="defValue"></param>
        /// <returns></returns>
        static public int GetQInt(string varName, int defValue) { return GetQ(varName).ToInt(defValue); }
        /// <summary>
        /// GetQFloat
        /// </summary>
        /// <param name="varName"></param>
        /// <param name="defValue"></param>
        /// <returns></returns>
        static public float GetQFloat(string varName, int defValue) { return GetQ(varName).ToFloat(defValue); }
        #endregion

        #region GetF/GetFInt/GetFFloat
        /// <summary>
        /// 取POST提交的数据
        /// </summary>
        /// <param name="VarName">名称</param>
        /// <returns>返回值</returns>
        static public String GetF(String VarName)
        {
            string varValue = "";
            if (HttpContext.Current.Request.Form[VarName]!=null)
                varValue = HttpContext.Current.Request.Form[VarName].ToString();
            return varValue;
        }
        /// <summary>
        /// GetFInt
        /// </summary>
        /// <param name="varName"></param>
        /// <param name="defValue"></param>
        /// <returns></returns>
        static public int GetFInt(string varName, int defValue) { return GetF(varName).ToInt(defValue); }
        /// <summary>
        /// GetFFloat
        /// </summary>
        /// <param name="varName"></param>
        /// <param name="defValue"></param>
        /// <returns></returns>
        static public float GetFFloat(string varName, int defValue) { return GetF(varName).ToFloat(defValue); }
        #endregion

        #region IsPost/IsGet
        /// <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");
        }
        #endregion

        #region 服务器变量名
        /// <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();
        }
        #endregion

        #region GetRawUrl/IsBrowserGet/IsSearchEnginesGet/GetPageName/GetQParamCount/GetFParamCount/GetParamCount/
        /// <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) {
                string[] strArray = new string[] { "google", "yahoo", "msn", "baidu", "sogou", "sohu", "sina", "163", "lycos", "tom", "yisou", "iask", "soso", "gougou", "zhongsou" };
                string str = HttpContext.Current.Request.UrlReferrer.ToString().ToLower();
                for (int i = 0; i < strArray.Length; i++) {
                    if (str.IndexOf(strArray[i]) >= 0) return true;
                }
            }
            return false;
        }
        /// <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>
        /// GET ParamCount
        /// </summary>
        /// <returns></returns>
        public static int GetQParamCount() { return (HttpContext.Current.Request.QueryString.Count); }
        /// <summary>
        /// POST ParamCount
        /// </summary>
        /// <returns></returns>
        public static int GetFParamCount() { return (HttpContext.Current.Request.Form.Count); }
        #endregion

        #region GetCurrentFullHost/GetHost/GetIP/GetUrl/GetReferrer/SaveRequestFile/GetOS/GetBrowser
        /// <summary>
        /// 取全IP包括端口
        /// </summary>
        /// <returns>IP和端口</returns>
        public static string GetCurrentFullHost()
        {
            HttpRequest request = HttpContext.Current.Request;
            if (!request.Url.IsDefaultPort)
                return string.Format("{0}:{1}", request.Url.Host, request.Url.Port.ToString());
            return request.Url.Host;
        }
        /// <summary>
        /// 取主机名
        /// </summary>
        /// <returns></returns>
        public static string GetHost() { return HttpContext.Current.Request.Url.Host; }
        /// <summary>
        /// 前台URL
        /// </summary>
        /// <returns></returns>
        public static string GetUrl() { return HttpContext.Current.Request.Url.ToString(); }
        /// <summary>
        /// 来源URL
        /// </summary>
        /// <returns></returns>
        public static string GetReferrer() {
            string str = null;
            try {
                str = GetServerString("HTTP_REFERER").Trim();
                if (str.Length==0) str = HttpContext.Current.Request.UrlReferrer.ToString();
            } catch { }

            if (str == null) return "";
            return str;
        }
        /// <summary>
        /// 保存Request文件
        /// </summary>
        /// <param name="path">保存到文件名</param>
        public static void SaveRequestFile(string path)
        {
            if (HttpContext.Current.Request.Files.Count > 0) HttpContext.Current.Request.Files[0].SaveAs(path);
        }
        #region GetIP
        /// <summary>
        /// 取IP
        /// </summary>
        /// <returns>返回IP</returns>
        public static string GetIP() {
            string result = String.Empty;
            result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

            if (result != null && result != String.Empty) {//可能有代理 
                if (result.IndexOf(".") == -1) result = null;
                else {
                    if (result.IndexOf(",") != -1) {//有“,”，估计多个代理。取第一个不是内网的IP。 
                        
                        result = result.Replace(" ", "").Replace("'", "");
                        string[] temparyip = result.Split(",;".ToCharArray());
                        for (int i = 0; i < temparyip.Length; i++) {
                            if (temparyip[i].IsIP()
                                && temparyip[i].Substring(0, 3) != "10."
                                && temparyip[i].Substring(0, 7) != "192.168"
                                && temparyip[i].Substring(0, 7) != "172.16.")
                            {
                                return temparyip[i];    //找到不是内网的地址 
                            }
                        }
                    }
                    else if (result.IsIP()) //代理即是IP格式 
                        return result;
                    else
                        result = null;    //代理中的内容 非IP，取IP 
                }

            }

            string IpAddress = (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null
                && HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != String.Empty) 
                ? HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]
                : HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];

            if (null == result || result == String.Empty)
                result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];

            if (result == null || result == String.Empty)
                result = HttpContext.Current.Request.UserHostAddress;

            return result;
        }
        #endregion 
        #region GetOS
        /// <summary>
        /// 取操作系统
        /// </summary>
        /// <returns>返回操作系统</returns>
        public static string GetOS() {
            HttpBrowserCapabilities bc = new HttpBrowserCapabilities();
            bc = System.Web.HttpContext.Current.Request.Browser;
            return bc.Platform;
        }
        #endregion 
        #region GetBrowser
        /// <summary>
        /// 取游览器
        /// </summary>
        /// <returns>返回游览器</returns>
        public static string GetBrowser()
        {
            HttpBrowserCapabilities bc = new HttpBrowserCapabilities();
            bc = System.Web.HttpContext.Current.Request.Browser;
            return bc.Type;
        }
        #endregion 
        #endregion
    }
}

本文转自：http://www.cnblogs.com/livexy/archive/2010/07/05/1771635.html