用原js写获取本地cookie的方法

Posted 2023-05-09

参考技术A get(cookie)

    let  cookieValue=null;

    let  cookies=document.cookie.split(';');

    for(var i=0;i<cookies.length;i++)

          let cookie=cookies[i].trim();去掉前后的空格

          if(cookie.substring(0,name.length+1)==(name+'='))

              cookieValue=decodeURICompoent(cookie.substring(name.length+1)）;

              break

         

     

    return cookieValue;

  、

js操作cookie

经常在网页上看到浏览记录，在没有登陆的情况下，是不太可能把数据保存在数据库中的，那多半是放在cookie 中的，不知道这些怎么去操作，大哥们写点代码让小弟学习下。
也可发到我的邮箱：[e-mail]

参考技术A //网页引用

<script language="javascript"src="./js/cookie.js"></script>

//取cookie值
var hrckdeptcode = Cookie("hrckdeptcode");
var hrckdeptname = Cookie("hrckdeptname");

//保存cookie值
setCookie("hrckdeptcode", deptcode, expdate, "/", null, false);
setCookie("hrckdeptname", deptname, expdate, "/", null, false);

把下面的脚本放到 cookie.js 文件里

var expdate= new Date();

function getCookieVal (offset)
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1) endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));


function Cookie (name)
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen)
var j = i + alen;
if (document.cookie.substring(i, j) == arg) return getCookieVal (j);
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;

return null;


function setCookie (name,value,expires,path,domain,secure)
expdate.setTime(expdate.getTime() + (24*60*60*1000*365));
document.cookie = name + "=" + escape (value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");


function deleteCookie(name)
expdate = new Date();
expdate.setTime(expdate.getTime() - (86400 * 1000 * 1));
setCookie(name, "", expdate);
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