asp.net 操作 cookie-阿里云开发者社区

protected void Button1_Click( object sender, EventArgs e) // 写入Cookie
    {
        HttpCookie cookie = new HttpCookie( " Info " ); // 定义cookie对象以及名为Info的项
        DateTime dt = DateTime.Now; // 定义时间对象
        TimeSpan ts = new TimeSpan( 1 , 0 , 0 , 0 ); // cookie有效作用时间，具体查msdn
        cookie.Expires = dt.Add(ts); // 添加作用时间
        cookie.Values.Add( " user " , " cxbkkk " ); // 增加属性
        cookie.Values.Add( " userid " , " 1203 " );
        Response.AppendCookie(cookie); // 确定写入cookie中
    }
     protected void Button2_Click( object sender, EventArgs e) // 读取Cookie
    {
         if (Request.Cookies[ " Info " ] != null )
        {
             string temp = Convert.ToString(Request.Cookies[ " Info " ].Values[ " user " ]) + "    " + Convert.ToString(Request.Cookies[ " Info " ].Values[ " userid " ]);
             // 读全部就用Request.Cookies["Info"].Value)
             if (temp == "" )
            {
                Response.Write( " 空 " );
            }
             else
                Response.Write(temp);
        }
         else
        {
            Response.Write( " 无cookie " );
        }
    }
     protected void Button3_Click( object sender, EventArgs e) // 修改Cookie
    {
        Response.Cookies[ " Info " ][ " user " ] = " 2 " ;
        Response.Cookies[ " Info " ].Expires = DateTime.Now.AddDays( 1 );
    }
     protected void Button4_Click( object sender, EventArgs e) // 删除Cookie
    {
         // 删除cookie下的属性
        HttpCookie acookie = Request.Cookies[ " Info " ];
        acookie.Values.Remove( " userid " );
        acookie.Expires = DateTime.Now.AddDays( 1 );
        Response.Cookies.Add(acookie);
         // 删除所有cookie，就是设置过期时间为现在就行了
         int limit = Request.Cookies.Count - 1 ;
         for ( int i = 0 ; i < limit; i ++ )
        {
            acookie = Request.Cookies[i];
            acookie.Expires = DateTime.Now.AddDays( - 1 );
            Response.Cookies.Add(acookie);
        }        // 这下不用到处找了
    }

每个页面下面放以下代码
<script src="http://www.cnblogs.com/clicktotal.aspx?proid=247"></script>

//写入cookie 点击率
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class clicktotal : System.Web.UI.Page
{
     protected void Page_Load( object sender, EventArgs e)
    {

         this .clickfun();
    }
     // 写入cookie
     private void writeCookie( string strId)
    {
         if (Request.Cookies[ " pp " ] != null )
        {
             string temp = Convert.ToString(Request.Cookies[ " pp " ].Values[ " id " ]);
             if (temp.IndexOf(strId) >- 1 ) // 判断是否出现过
            {
                temp = temp.Replace(strId, "" );
                temp += strId + "" ;
            }
             else
            {
                temp += strId + "" ;
            }

            Response.Cookies[ " pp " ][ " id " ] = temp;
            Response.Cookies[ " pp " ].Expires = DateTime.Now.AddDays( 1 );

        }
         else
        {
            HttpCookie cookie = new HttpCookie( " pp " ); // 定义cookie对象以及名为Info的项
            DateTime dt = DateTime.Now; // 定义时间对象
            TimeSpan ts = new TimeSpan( 1 , 0 , 0 , 0 ); // cookie有效作用时间，具体查msdn
            cookie.Expires = dt.Add(ts); // 添加作用时间
            cookie.Values.Add( " id " , strId); // 增加属性
            Response.AppendCookie(cookie); // 确定写入cookie中
        }
    }
    private void clickfun() // 获取商品点击率
   {
         if (Request[ " proid " ] != null )
        {
             string strId = Request[ " proid " ];
             string strSql = " select top 1 * from product where id= " + strId;
            db d = new db();
            DataTable dt = d.getDT(strSql);
             int inTotal = 0 ;
             if (dt.Rows.Count > 0 )
            {
                 if (dt.Rows[ 0 ][ " totalHits " ].ToString() != "" )
                {
                    inTotal = Convert.ToInt32(dt.Rows[ 0 ][ " totalHits " ]) + 1 ;
                }
                 else
                {
                    inTotal = 1 ;
                }
                strSql = " update product set totalHits= " + inTotal + " where id= " + strId;
                d = new db();
                 int i = d.excuteSQL(strSql);
            }
             // 设置cookie
             this .writeCookie(strId + " | " );
             // 设置cookie结束
        }

        Response.Write( " document.write(\ " \ " ) " );
   }
}

//获取cookie值
    private string getcookie()
    {
        string strReturn = "";
        if (Request.Cookies["pp"] != null)
        {
            string temp = Convert.ToString(Request.Cookies["pp"].Values["id"]);
            //读全部就用Request.Cookies["Info"].Value)
            if (temp != "")
            {
                strReturn = temp;
            }
        }
        return strReturn;
    }

   string str = this.getcookie();//获取cookie值
       // Response.Write(""+str+"");
       Response.Write( this.cchtml(str) );
    }
    //生成html并返回
    private string cchtml(string str)
    {
        string strReturn="";
        if (str != "")
        {
            string strShow = "<div id='left3'><div class='span'>你最近浏览的商品</div>";
            strShow += "<dl>";
            string[] arra = str.Split('|');//截取内字符
            //for (int i = 0; i < arra.Length; i++)

            if (arra.Length < 6)
            {

                for (int i = arra.Length - 1; i >= 0; i--)
                {
                    if (arra[i] != "")
                    {
                        string strSql = "select * from product where id=" + arra[i].ToString();
                        db d = new db();
                        DataTable dt = d.getDT(strSql);
                        if (dt.Rows.Count > 0)
                        {
                            // strShow += "<dt><a href='" + this.strRoot(arra[i].ToString()) + "/" + dt.Rows[0]["proFname"] + ".htm'><img src='" + webUrl + "/img/produce.gif' alt='" + dt.Rows[0]["proCname"] + "' border='0' /></a></dt>";
                            strShow += "<dd><a href='" + this.strRoot(arra[i].ToString()) + "/" + dt.Rows[0]["proFname"] + ".htm'>" + dt.Rows[0]["proCname"] + "</a></dd>";
                        }
                    }

                }
            }

            else
            {
                int i, j;
                for (i = 0; i < arra.Length; i++)
                    for (j = i + 1; j < arra.Length; j++)
                    {
                        string t = arra[i];
                        arra[i] = arra[j];
                        arra[j] = t;
                    }
                for (i = 0; i < 6; i++)
                {

                    if (arra[i] != "")
                    {
                        string strSql = "select * from product where id=" + arra[i].ToString();
                        db d = new db();
                        DataTable dt = d.getDT(strSql);
                        if (dt.Rows.Count > 0)
                        {
                            strShow += "<dd><a href='" + this.strRoot(arra[i].ToString()) + "/" + dt.Rows[0]["proFname"] + ".htm'>" + dt.Rows[0]["proCname"] + "</a></dd>";
                        }
                    }

                }
            }

            strShow += "</dl>";
            strShow += "</div>";
            strReturn = strShow;
        }
        else
        {
            string strShow = "<div id='left3'><div class='span'>你最近浏览的商品</div><dl>";
            strShow += "<dd> 您暂时没有浏览任何产品或cookie未正确启用</dd>";
            strShow += "</dl></div>";
            strReturn = strShow;
        }
        return strReturn;

    }

  
///设置cookie
function setCookie(NameOfCookie, value, expiredays) {
 
var ExpireDate = 
 new Date();
 
     ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));
 
     document.cookie = NameOfCookie + "=" + escape(value) + ((expiredays == 
 null) ? "": "; expires=" + ExpireDate.toGMTString());
 
 }
 
///获取cookie值
function getCookie(NameOfCookie) {
 
if (document.cookie.length > 0) {
 
         begin = document.cookie.indexOf(NameOfCookie + "=");
 
if (begin != -1) {
 
             begin += NameOfCookie.length + 1;
 
             end = document.cookie.indexOf(";", begin);
 
if (end == -1) end = document.cookie.length;
 
return unescape(document.cookie.substring(begin, end));
 
         }
 
     }
 
returnnull;
 
 }
 
///删除cookie
function delCookie(NameOfCookie) {
 
if (getCookie(NameOfCookie)) {
 
         document.cookie = NameOfCookie + "=" + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
 
     }

}

本文转自曾祥展博客园博客，原文链接：http://www.cnblogs.com/zengxiangzhan/archive/2009/09/30/1576763.html，如需转载请自行联系原作者

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