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摘自公司項目的代碼
using System;
using System.Text;
using System.Web;
using System.Text.RegularExpressions;
namespace DTcms.Common
{
/// <summary>
/// Request操作類
/// </summary>
public class DTRequest
{
/// <summary>
/// 判斷當前頁面是否接收到了Post請求
/// </summary>
/// <returns>是否接收到了Post請求</returns>
public static bool IsPost()
{
return HttpContext.Current.Request.HttpMethod.Equals("POST");
}
/// <summary>
/// 判斷當前頁面是否接收到了Get請求
/// </summary>
/// <returns>是否接收到了Get請求</returns>
public static bool IsGet()
{
return HttpContext.Current.Request.HttpMethod.Equals("GET");
}
/// <summary>
/// 返回指定的服務器變量信息
/// </summary>
/// <param name="strName">服務器變量名</param>
/// <returns>服務器變量信息</returns>
public static string GetServerString(string strName)
{
if (HttpContext.Current.Request.ServerVariables[strName] == null)
return "";
return HttpContext.Current.Request.ServerVariables[strName].ToString();
}
/// <summary>
/// 返回上一個頁面的地址
/// </summary>
/// <returns>上一個頁面的地址</returns>
public static string GetUrlReferrer()
{
string retVal = null;
try
{
retVal = HttpContext.Current.Request.UrlReferrer.ToString();
}
catch{}
if (retVal == null)
return "";
return retVal;
}
/// <summary>
/// 得到當前完整主機頭
/// </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>
/// 得到主機頭
/// </summary>
public static string GetHost()
{
return HttpContext.Current.Request.Url.Host;
}
/// <summary>
/// 得到主機名
/// </summary>
public static string GetDnsSafeHost()
{
return HttpContext.Current.Request.Url.DnsSafeHost;
}
/// <summary>
/// 獲取當前請求的原始 URL(URL 中域信息之後的部分,包括查詢字符串(如果存在))
/// </summary>
/// <returns>原始 URL</returns>
public static string GetRawUrl()
{
return HttpContext.Current.Request.RawUrl;
}
/// <summary>
/// 判斷當前訪問是否來自瀏覽器軟件
/// </summary>
/// <returns>當前訪問是否來自瀏覽器軟件</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>
/// 判斷是否來自搜索引擎鏈接
/// </summary>
/// <returns>是否來自搜索引擎鏈接</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>
/// 獲得當前完整Url地址
/// </summary>
/// <returns>當前完整Url地址</returns>
public static string GetUrl()
{
return HttpContext.Current.Request.Url.ToString();
}
/// <summary>
/// 獲得指定Url參數的值
/// </summary>
/// <param name="strName">Url參數</param>
/// <returns>Url參數的值</returns>
public static string GetQueryString(string strName)
{
return GetQueryString(strName, false);
}
/// <summary>
/// 獲得指定Url參數的值
/// </summary>
/// <param name="strName">Url參數</param>
/// <param name="sqlSafeCheck">是否進行SQL安全檢查</param>
/// <returns>Url參數的值</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的參數值(Int型)
/// </summary>
/// <param name="strName">URL參數</param>
/// <param name="defaultvalue">默認值</param>
/// <returns>返回指定URL的參數值</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的參數值(String型)
/// </summary>
/// <param name="strName">URL參數</param>
/// <param name="defaultvalue">默認值</param>
/// <returns>返回指定URL的參數值</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>
/// 獲得當前頁面的名稱
/// </summary>
/// <returns>當前頁面的名稱</returns>
public static string GetPageName()
{
string [] urlArr = HttpContext.Current.Request.Url.AbsolutePath.Split('/');
return urlArr[urlArr.Length - 1].ToLower();
}
/// <summary>
/// 返回表單或Url參數的總個數
/// </summary>
/// <returns></returns>
public static int GetParamCount()
{
return HttpContext.Current.Request.Form.Count + HttpContext.Current.Request.QueryString.Count;
}
/// <summary>
/// 獲得指定表單參數的值
/// </summary>
/// <param name="strName">表單參數</param>
/// <returns>表單參數的值</returns>
public static string GetFormString(string strName)
{
return GetFormString(strName, false);
}
/// <summary>
/// 獲得指定表單參數的值
/// </summary>
/// <param name="strName">表單參數</param>
/// <param name="sqlSafeCheck">是否進行SQL安全檢查</param>
/// <returns>表單參數的值</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>
/// 返回指定表單的參數值(Int型)
/// </summary>
/// <param name="strName">表單參數</param>
/// <returns>返回指定表單的參數值(Int型)</returns>
public static int GetFormIntValue(string strName)
{
return GetFormIntValue(strName, 0);
}
/// <summary>
/// 返回指定表單的參數值(Int型)
/// </summary>
/// <param name="strName">表單參數</param>
/// <param name="defaultvalue">默認值</param>
/// <returns>返回指定表單的參數值</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>
/// 返回指定表單的參數值(String型)
/// </summary>
/// <param name="strName">表單參數</param>
/// <returns>返回指定表單的參數值(String型)</returns>
public static string GetFormStringValue(string strName)
{
return GetQueryStringValue(strName, string.Empty);
}
/// <summary>
/// 返回指定表單的參數值(String型)
/// </summary>
/// <param name="strName">表單參數</param>
/// <param name="defaultvalue">默認值</param>
/// <returns>返回指定表單的參數值</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>
/// 獲得Url或表單參數的值, 先判斷Url參數是否爲空字符串, 如爲True則返回表單參數的值
/// </summary>
/// <param name="strName">參數</param>
/// <returns>Url或表單參數的值</returns>
public static string GetString(string strName)
{
return GetString(strName, false);
}
/// <summary>
/// 獲得Url或表單參數的值, 先判斷Url參數是否爲空字符串, 如爲True則返回表單參數的值
/// </summary>
/// <param name="strName">參數</param>
/// <param name="sqlSafeCheck">是否進行SQL安全檢查</param>
/// <returns>Url或表單參數的值</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>
/// 獲得Url或表單參數的值, 先判斷Url參數是否爲空字符串, 如爲True則返回表單參數的值
/// </summary>
/// <param name="strName">參數</param>
/// <param name="sqlSafeCheck">是否進行SQL安全檢查</param>
/// <returns>Url或表單參數的值</returns>
public static string GetStringValue(string strName, string defaultvalue)
{
if ("".Equals(GetQueryStringValue(strName)))
return GetFormStringValue(strName, defaultvalue);
else
return GetQueryStringValue(strName, defaultvalue);
}
/// <summary>
/// 獲得指定Url參數的int類型值
/// </summary>
/// <param name="strName">Url參數</param>
/// <returns>Url參數的int類型值</returns>
public static int GetQueryInt(string strName)
{
return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], 0);
}
/// <summary>
/// 獲得指定Url參數的int類型值
/// </summary>
/// <param name="strName">Url參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url參數的int類型值</returns>
public static int GetQueryInt(string strName, int defValue)
{
return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], defValue);
}
/// <summary>
/// 獲得指定表單參數的int類型值
/// </summary>
/// <param name="strName">表單參數</param>
/// <returns>表單參數的int類型值</returns>
public static int GetFormInt(string strName)
{
return GetFormInt(strName, 0);
}
/// <summary>
/// 獲得指定表單參數的int類型值
/// </summary>
/// <param name="strName">表單參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>表單參數的int類型值</returns>
public static int GetFormInt(string strName, int defValue)
{
return Utils.StrToInt(HttpContext.Current.Request.Form[strName], defValue);
}
/// <summary>
/// 獲得指定Url或表單參數的int類型值, 先判斷Url參數是否爲缺省值, 如爲True則返回表單參數的值
/// </summary>
/// <param name="strName">Url或表單參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url或表單參數的int類型值</returns>
public static int GetInt(string strName, int defValue)
{
if (GetQueryInt(strName, defValue) == defValue)
return GetFormInt(strName, defValue);
else
return GetQueryInt(strName, defValue);
}
/// <summary>
/// 獲得指定Url參數的decimal類型值
/// </summary>
/// <param name="strName">Url參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url參數的decimal類型值</returns>
public static decimal GetQueryDecimal(string strName, decimal defValue)
{
return Utils.StrToDecimal(HttpContext.Current.Request.QueryString[strName], defValue);
}
/// <summary>
/// 獲得指定表單參數的decimal類型值
/// </summary>
/// <param name="strName">表單參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>表單參數的decimal類型值</returns>
public static decimal GetFormDecimal(string strName, decimal defValue)
{
return Utils.StrToDecimal(HttpContext.Current.Request.Form[strName], defValue);
}
/// <summary>
/// 獲得指定Url參數的float類型值
/// </summary>
/// <param name="strName">Url參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url參數的int類型值</returns>
public static float GetQueryFloat(string strName, float defValue)
{
return Utils.StrToFloat(HttpContext.Current.Request.QueryString[strName], defValue);
}
/// <summary>
/// 獲得指定表單參數的float類型值
/// </summary>
/// <param name="strName">表單參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>表單參數的float類型值</returns>
public static float GetFormFloat(string strName, float defValue)
{
return Utils.StrToFloat(HttpContext.Current.Request.Form[strName], defValue);
}
/// <summary>
/// 獲得指定Url或表單參數的float類型值, 先判斷Url參數是否爲缺省值, 如爲True則返回表單參數的值
/// </summary>
/// <param name="strName">Url或表單參數</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url或表單參數的int類型值</returns>
public static float GetFloat(string strName, float defValue)
{
if (GetQueryFloat(strName, defValue) == defValue)
return GetFormFloat(strName, defValue);
else
return GetQueryFloat(strName, defValue);
}
}
}