cookie简单封装

设置cookie

/*
cookieName cookie名字
cookieValue cookie值
cookiePath cookie路径
cookieTime cookie存在时间
*/
function setCookie(cookieName,cookieValue,cookiePath,cookieTime){
	var json = {
		"x" : cookieValue
	}
	cookieValue = JSON.stringify(json);
	var str = cookieName+"="+cookieValue;
	if(cookiePath){
		str += ";path="+cookiePath;
	}
	if(cookieTime){
		var time = new Date();
		time.setMilliseconds(time.getMilliseconds()+cookieTime);
		str += ";expires="+time.toGMTString();
	}
	document.cookie = str;
}

获取cookie

// cookieName cookie的名字
function getCookie(cookieName){
	var str = document.cookie;
	str = decodeURIComponent(str);
	
	var arr = str.split("; ");
	var i = arr.length -1;
	for(var i = arr.length -1;i>=0;i--){
		var ind = arr[i].indexOf("=");
		var a = arr[i].slice(0,ind);
		if( cookieName == a ){
			var str = JSON.parse(arr[i].slice(ind+1));
			console.log(str)
			return str['x'];
		}
	}
	return "";
}

(新人上道)