您有多种选择：
// Memorise any passed in user.
String username = request.getParameter("username");
if (username != null && username.length() > 0) {
session.setAttribute("username", username);
}
<input name="username" type="hidden" value=""/>
username = getCookie(userCookieName);
// Get from cookie.
function getCookie(name) {
if (document.cookie) {
index = document.cookie.indexOf(name);
if (index !== -1) {
f = (document.cookie.indexOf("=", index) + 1);
t = document.cookie.indexOf(";", index);
if (t === -1) {
t = document.cookie.length;
}
return(document.cookie.substring(f, t));
}
}
return ("");
}
sessionStorage.setItem("username", "...");
.... onclick="window.location='details.jsp?username=...'
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