getCookie2函数是在jsp页面加载时执行,如果没有这个cookie就生成一个,如果有就读取放在登录名。
getCookie3是点击登录按钮时记住登录名。
现在问题时如果IE不关闭系统退出返回登录页面时cookie可以正常取到,但是IE一旦关闭,再进登录页面cookie就找不到了。
用的是tomcat,请高手帮看!!
var mycookie=document.cookie;
var name="userName";
function getCookie2(){
var start1= mycookie.indexOf(name + "=");
if(start1==-1){
expireDate = new Date();
expireDate.setMonth(expireDate.getMonth()+6);
document.cookie = name + "=" + document.loginForm.userName.value+";expires=" + expireDate.toGMTString();
}else{
start=mycookie.indexOf("=",start1)+1;
var end = mycookie.indexOf(";",start);
if (end==-1){
end=mycookie.length;
}
var value=unescape(mycookie.substring(start,end));
document.loginForm.userName.value=value;
}
}function getCookie3(name){
alert("3");
document.cookie = name +"=" + document.loginForm.userName.value;
}
getCookie3是点击登录按钮时记住登录名。
现在问题时如果IE不关闭系统退出返回登录页面时cookie可以正常取到,但是IE一旦关闭,再进登录页面cookie就找不到了。
用的是tomcat,请高手帮看!!
var mycookie=document.cookie;
var name="userName";
function getCookie2(){
var start1= mycookie.indexOf(name + "=");
if(start1==-1){
expireDate = new Date();
expireDate.setMonth(expireDate.getMonth()+6);
document.cookie = name + "=" + document.loginForm.userName.value+";expires=" + expireDate.toGMTString();
}else{
start=mycookie.indexOf("=",start1)+1;
var end = mycookie.indexOf(";",start);
if (end==-1){
end=mycookie.length;
}
var value=unescape(mycookie.substring(start,end));
document.loginForm.userName.value=value;
}
}function getCookie3(name){
alert("3");
document.cookie = name +"=" + document.loginForm.userName.value;
}
{
var argv = setCookie.arguments;
var argc = setCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
if(expires!=null&&expires!="")
{
var LargeExpDate = new Date ();
LargeExpDate.setTime(LargeExpDate.getTime() + (expires*1000*3600*24));
}
document.cookie = name + "=" + escape (value)+((expires == null) ? "" : ("; expires=" +LargeExpDate.toGMTString()));
}function getCookie(name) //cookies读取
{
//if(document.cookie=="")alert("由于您没有开启cookie,所以无法使用该功能!请使用前先开启cookie");
var search = name + "="
if(document.cookie.length > 0)
{
offset = document.cookie.indexOf(search)
if(offset != -1)
{
offset += search.length
end = document.cookie.indexOf(";", offset)
if(end == -1) end = document.cookie.length
return unescape(document.cookie.substring(offset, end))
}
else return ""
}
}setCookie("username","csdn",30)//有效期30天
getCookie("username")
<script>
function setCookie(name, value, expires, path, domain)
{
if(!expires) expires = -1;
if(!path) path = "/";
var d = "" + name + "=" + value; var e;
if (expires < 0) {
e = "";
}
else if (expires == 0) {
var f = new Date(1970, 1, 1);
e = ";expires=" + f.toUTCString();
}
else {
var now = new Date();
var f = new Date(now.getTime() + expires * 1000);
e = ";expires=" + f.toUTCString();
}
var dm;
if(!domain){
dm = "";
}
else{
dm = ";domain=" + domain;
} document.cookie = name + "=" + value + ";path=" + path + e + dm;
};function getCookie(a)
{
var b = String(document.cookie);
var c = b.indexOf(a + "="); if (c != -1) {
var d = b.indexOf(";", c);
d = d == -1 ? b.length : d;
c = c + a.length + 1;
if(b.charAt(c)=='"'&&b.charAt(d-1)=='"'){
c+=1;d-=1;
}
if(c>=d)
return "";
return b.substring(c, d);
} return "";
};
//setCookie("good", "hel43lo", 365, "/", document.domain)
document.write(getCookie("good"));
//alert(document.domain);
</script>