如何测试Java / J2EE中是否启用了cookie [英] How do you test if cookies are enabled in Java/J2EE

问题描述

测试：

return request.getCookies() == null;

不适合测试。还有其他方法吗？

is not an appropriate way test. Is there another way?

推荐答案

您通常希望使用JavaScript来确定客户端的浏览器是否启用了Cookie：

You generally want to use JavaScript to determine if the client's browser has cookies enabled:

<script type="text/javascript">
var cookieEnabled=(navigator.cookieEnabled)? true : false

//if not IE4+ nor NS6+
if (typeof navigator.cookieEnabled=="undefined" && !cookieEnabled){ 
document.cookie="testcookie"
cookieEnabled=(document.cookie.indexOf("testcookie")!=-1)? true : false
}

//if (cookieEnabled) //if cookies are enabled on client's browser
//do whatever

</script>

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