C#.NET Request相关操作

</pre><pre name="code" class="csharp">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
}
}