这样的功能能否实现?

[ty4278]

WEB服务器1：在北京

WEB服务器2：在上海

WEB服务器3: 在西安

现在我想实现，把WEB服务器1作为登录验证服务器，也就是说在WEB服务器1登录以后再游览WEB服务器2和WEB

服务器3的jsp页面就无需再登录了，用java里面的技术，能否实现？多谢！
问题解决送500分

[老土豆T]

可以实现..
网易通行证就是这样实现的。

验证使用cookies... 不能用session.其他都差不多.

[ty4278]

哇，多谢了!
这又有一个问题:在jsp中如何设COOKies，使得当用户关闭游览器时，自动把这个cookies删除！

[AllError]

package com;

import java.io.PrintStream;
import javax.servlet.http.*;

public class CookieBean extends HttpServlet
{

public CookieBean()
{
}

public void addCookie(HttpServletResponse httpservletresponse, String s, String s1)
{
Cookie cookie = new Cookie(s, s1);
httpservletresponse.addCookie(cookie);
}

public int getCookieMaxAge(HttpServletRequest httpservletrequest, String s)
{
Cookie acookie[] = httpservletrequest.getCookies();
if(acookie != null)
{
for(int i = 0; i < acookie.length; i++)
if(acookie[i].getName().equals(s))
return acookie[i].getMaxAge();

}
return -1;
}

public String getCookieValue(HttpServletRequest httpservletrequest, String s)
{
String s2;
try
{
Cookie acookie[] = httpservletrequest.getCookies();
if(acookie != null)
{
for(int i = 0; i < acookie.length; i++)
if(acookie[i].getName().equals(s))
{
String s4;
try
{
String mm = acookie[i].getValue();
String s3 = mm;
return s3;
}
catch(Exception e)
{
s4 = "";
}
return s4;
}

}
String s1 = "";
return s1;
}
catch(Exception e)
{
s2 = "";
}
return s2;
}

public void setCookieMaxAge(HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse, String s, int i)
{
Cookie acookie[] = httpservletrequest.getCookies();
if(acookie != null)
{
for(int j = 0; j < acookie.length; j++)
if(acookie[j].getName().equals(s))
{
acookie[j].setMaxAge(i);
httpservletresponse.addCookie(acookie[j]);
}

}
}

public void setCookieValue(HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse, String s, String s1)
{
try
{
Cookie acookie[] = httpservletrequest.getCookies();
if(acookie != null)
{
for(int i = 0; i < acookie.length; i++)
if(acookie[i].getName().equals(s))
{
acookie[i].setValue(s1);
httpservletresponse.addCookie(acookie[i]);
}

}
}
catch(Exception e)
{
System.out.println("");
}
}
}

cookie的 javabean 设时间让它自动过期.

[aleccheung]

Cookie cookie = new Cookie(String name,String value);
request.addCookie(cookie);
set.MaxAge(int expiry);

[ty4278]

哪些代码，是设COOKIE自动过期的？多谢了

[ty4278]

我是想当客户端关闭游览器时，该次写入的cookie自动过期!

[AllError]

没这样的东东