Html代碼:
<!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與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代碼:
<script language="JavaScript" type="text/javascript"> /* * 設定Cookie的通用函數,其中name是必須的參數。其它為可選,故用條件陳述式判斷。 * 在設定Cookie時若不設定到期時間則該Cookie為臨時的,僅當此次會話可用 */ 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的寫入 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)); } //讀取所有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; } /* * 讀取特定Cookie的通用函數 */ 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>