Html代码：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>JavaScript与Cookie(一)</title> </head> <body> <form name="frm1" method="post" onsubmit="savecookie()"> <p>CookieMessage:<input type="text" name="cookieInfo" size="50"/></p> <p>Valid-time:<input type="text" name="time" size="10" value="30"/>Please input a integer.</p> <div style="border:1px solid #ccc;" id="divInfo"></div> <p><input type="submit" name="submit" value="Submit"> <input type="reset" name="reset" value="Reset"/></p> <p><input type="button" onclick="writeAllCookie()" value="writeAllCookie"/></p> <p><input type="text" name="txtGetSpc"/> <input type="button" value="GetSpecificCookie" onclick="getCk()" </p> </form> </body> </html>
Js代码：
<script language="JavaScript" type="text/javascript"> /* * 设置Cookie的通用函数，其中name是必须的参数。其它为可选，故用条件语句判断。 * 在设置Cookie时若不设置过期时间则该Cookie为临时的，仅当此次会话可用 */ function setcookie(name, value, expires, path, domain, secure) { var curcookie = name + "=" + encodeURI(value) +((expires) ? ";expires=" + expires.toGMTString() : "") +((path) ? ";path=" + path : "") +((domain) ? ";domain=" + domain : "") +((secure) ? ";secure" : ""); document.cookie = curcookie; } //Cookie的写入 function savecookie() { var cookieInfo = document.frm1.cookieInfo.value; var time = document.frm1.time.value; var now = new Date(); now.setDate( now.getDate() + time); setcookie("myCookie",cookieInfo,now); document.write(decodeURI(document.cookie)); } //读取所有Cooke function writeAllCookie() { document.cookie = "name1=" + encodeURI("名字1"); document.cookie = "name2=" + encodeURI("名字2"); document.cookie = "name3=" + encodeURI("名字3"); var strInfo; var cookie = document.cookie.split(";"); for(var i=0; i<cookie.length; i++) { var ck = cookie[i].split("="); var cName = ck[0]; var cValue = decodeURI(ck[1]); strInfo += cName + "=" + cValue +"<br>"; } document.getElementById("divInfo").innerHTML = strInfo; } /* * 读取特定Cookie的通用函数 */ function getSpecificCookie(name) { if(document.cookie.length > 0) { start = document.cookie.indexOf(name + "="); if( start != -1) { start = start + name.length + 1; end = document.cookie.indexOf(";",start); if( end == -1) { end = document.cookie.length; } } return decodeURI(document.cookie.substring(start,end)); } return ""; } function getCk(){ name = document.frm1.txtGetSpc.value; alert( getSpecificCookie(name)); } </script>
