<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script language="JavaScript" type="text/javascript"> function addCookie(objName, objValue, objHours) {//添加cookie //escape() 函數可對字符串進行編碼， var str = objName + "=" + escape(objValue); if (objHours > 0) {//為0時不設定過期時間，瀏覽器關閉時cookie自動消失 var date = new Date(); var ms = objHours * 3600 * 1000; date.setTime(date.getTime() + ms); //expires指定了coolie的生命期 str += "; expires=" + date.toGMTString(); } document.cookie = str; alert("添加cookie成功"); } function getCookie(objName) {//獲取指定名稱的cookie的值 var arrStr = document.cookie.split("; "); for (var i = 0; i < arrStr.length; i++) { var temp = arrStr[i].split("="); if (temp[0] == objName) return unescape(temp[1]); } } function delCookie(name) {//為了刪除指定名稱的cookie，可以將其過期時間設定為一個過去的時間 var date = new Date(); date.setTime(date.getTime() - 10000); document.cookie = name + "=a; expires=" + date.toGMTString(); } function allCookie() {//讀取所有保存的cookie字符串 var str = document.cookie; if (str == "") { str = "沒有保存任何cookie"; } alert(str); } function add_() { var cookie_name = document.getElementById("cookie_name").value; var cookie_value = document.getElementById("cookie_value").value; var cookie_expireHours = document.getElementById("cookie_expiresHours").value; addCookie(cookie_name, cookie_value, cookie_expireHours); } function get_() { var cookie_name = document.getElementById("cookie_name").value; var cookie_value = getCookie(cookie_name); alert(cookie_value); } function del_() { var cookie_name = document.getElementById("cookie_name").value; delCookie(cookie_name); alert("刪除成功"); } </script> </head> <body> <form name="myform" runat="server"> <div> <label for="cookie_name"> 名稱 </label> <input type="text" id="cookie_name" name="cookie_name" runat="server" /> </div> <div> <label for="cookie_value"> 值 </lable> <input type="text" id="cookie_value" name="cookie_value" /> </div> <div> <label for="cookie_expireHours"> 多少個小時過期 </lable> <input type="text" id="cookie_expiresHours" name="cookie_expiresHours" /> </div> <div> <input type="button" value="添加該cookie" onclick="add_()" /><input type="button" value="讀取所有cookie" onclick="allCookie()" /><input type="button" value="讀取該名稱cookie" onclick="get_()" /><input type="button" value="刪除該名稱cookie" onclick="del_()" /> <asp:Button ID="Button1" runat="server" Text="后台讀取前台cookie" onclick="Button1_Click1" /> </div> </form> </body> </html>
protected void Button1_Click1(object sender, EventArgs e) { //一般在web應用程序里,你的程序都是為了處理客戶端過來的http請求而執行的,當前正在處理的這個請求的一些上下文信息就保存在一個HttpContext對象里, //你通過HttpContext的靜態屬性Current得到當前這個上下文,然后去取你需要的信息,比如查詢字符串等。 string UserID = HttpContext.Current.Request.Cookies["" + cookie_name.Value + ""].Value; }