jsp实现cookie的使用

时间:2021-05-26


packagecoreservlets;



importjava.io.*;
importjavax.servlet.*;
importjavax.servlet.http.*;



/**Setssixcookies:threethatapplyonlytothecurrent
*session(regardlessofhowlongthatsessionlasts)
*andthreethatpersistforanhour(regardlessof
*whetherthebrowserisrestarted).
*<P>
*TakenfromCoreServletsandJavaServerPages
*fromPrenticeHallandSunMicrosystemsPress,
*http://puter,orwhatever.
cookie.setMaxAge(3600);
response.addCookie(cookie);
}
response.setContentType("text/html");
PrintWriterout=response.getWriter();
Stringtitle="SettingCookies";
out.println
(ServletUtilities.headWithTitle(title)+
"<BODYBGCOLOR=\"#FDF5E6\">\n"+
"<H1ALIGN=\"CENTER\">"+title+"</H1>\n"+
"Therearesixcookiesassociatedwiththispage.\n"+
"Toseethem,visitthe\n"+
"<AHREF=\"/servlet/coreservlets.ShowCookies\">\n"+
"<CODE>ShowCookies</CODE>servlet</A>.\n"+
"<P>\n"+
"Threeofthecookiesareassociatedonlywiththe\n"+
"currentsession,whilethreearepersistent.\n"+
"Quitthebrowser,restart,andreturntothe\n"+
"<CODE>ShowCookies</CODE>servlettoverifythat\n"+
"thethreelong-livedonespersistacrosssessions.\n"+
"</BODY></HTML>");
}
}

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