sso跨域写cookie的一段js脚本

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我是靠谱客的博主阔达烧鹅，最近开发中收集的这篇文章主要介绍sso跨域写cookie的一段js脚本，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<script>
  var setcookitarray = "";
  setcookitarray = "["http://passport.a.com/main/setCookie.do?domain=","http://passport.a.com/main/setCookie/main/setCookie.do?domain=.b.cn","http://passport.a.com/main/setCookie/main/setCookie.do?domain=.c.com","http://passport.a.com/main/setCookie/main/setCookie.do?domain=.d.cn"]";
  setcookitarray = eval(setcookitarray); 
  var setcookitarrayln = setcookitarray.length; 
  //alert(setcookitarrayln);
  var notifyurl_list=setcookitarray;
  var ll = setcookitarrayln;
  var params="yqVg1ennsNnxydEq4azcAP6TjhR90QCEUtB7gs45H08ltXBUNeoy_GczVyqC6cvZEwPGN0Al8XWKDsIt60YO1QsUlbK0Fip73Xz@7djs3ZmhBbAdanMbUH1Y@MVD2@@keR0S7njF5xiy@m6zaRWYNMbJ23jLDSrvEtMj0BExfYvFFe@twp3RHfD41dJOQzWz@nf8i@tJB12hNLIG4oW0eA==";
  var failuretime=2678400;
  var backurl="http://www.test.com";
  //alert("1111");
  
  loginALL(notifyurl_list, ll-1, backurl, params,failuretime);
  //alert("2222");
  function loginALL(notifyurl_list,num,backurl,params,failuretime) {
        var u = notifyurl_list[num];
		 alert("url:"+(num)+"-"+u);
        if (typeof u != "undefined") {
		    //alert("4444:"+notifyurl_list[num]);
            var url = notifyurl_list[num]+"&failuretime="+failuretime+"&val="+params;
			//alert("url:"+url);
			
			//动态生成script脚本标签执行url页面
			var login=request("loginScript"+num,url);
			num--;
            if (num < 0) {
				
                window.setTimeout(function() {
                    window.location.href = backurl;
                }, 2000);
				
            }
			else
			{
				loginALL(notifyurl_list, num, backurl, params,failuretime);
			}
          
           
        }
  }
  
  
  
  function request(id,url){
     oScript = document.getElementById(id);
     var head = document.getElementsByTagName("head").item(0);
     if (oScript) {
        head.removeChild(oScript);
     }
     oScript = document.createElement("script");
     oScript.setAttribute("src", url);
     oScript.setAttribute("id",id);
     oScript.setAttribute("type","text/javascript");
     oScript.setAttribute("language","javascript");
     head.appendChild(oScript);
     return oScript;
}
  

</script>


<body>

</body>

主要通过递归调用和动态创建script标签来实现页面的调用。