⭐ 欢迎来到虫虫下载站！ | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站
📤 上传资源

📄 366150.xml

📁 论坛精华帖子
💻 XML
字号:
🔍 
<?xml version='1.0' encoding='GB2312'?>
<?xml-stylesheet type='text/xsl' href='../csdn.xsl'?>
<Topic>
<Issue>
<PostUserNickName>I&#32;can&#32;do</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>111</credit>
<TopicId>366150</TopicId>
<TopicName>如何判断在线用户，主要是如何判断用户关闭所有窗口（即他已经不在线了）？</TopicName>
<PostUserId>84967</PostUserId>
<PostUserName>shine_car</PostUserName>
<RoomName>JSP</RoomName>
<ReplyNum>23</ReplyNum>
<PostDateTime>2001-11-12 10:54:02</PostDateTime>
<Point>32</Point>
<ReadNum>148</ReadNum>
<RoomId>28</RoomId>
<EndState>2</EndState>
<Content>如何判断在线用户，主要是如何判断用户关闭所有窗口（即他已经不在线了）？即他没有通过正常的退出途径退出，而是直接关闭当前窗口。</Content>
</Issue>
<Replys>
<Reply>
<PostUserNickName>I&#32;can&#32;do</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>111</credit>
<ReplyID>2459646</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84967</PostUserId>
<PostUserName>shine_car</PostUserName>
<Point>0</Point>
<Content>No&#32;one&#32;know?</Content>
<PostDateTime>2001-11-12 18:40:36</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>在别处</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>82</credit>
<ReplyID>2467346</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84080</PostUserId>
<PostUserName>colababy</PostUserName>
<Point>10</Point>
<Content>hehe!车车，在做什么东东呀？？？
关闭当前窗口时，再打开一个新窗口，让其执行该用户正常退出时执行的操作，然后自动关闭！
</Content>
<PostDateTime>2001-11-13 14:17:09</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>杨柳疯</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>100</credit>
<ReplyID>2471316</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>121984</PostUserId>
<PostUserName>hendrix</PostUserName>
<Point>1</Point>
<Content>我也想知道……等待中……</Content>
<PostDateTime>2001-11-13 20:20:30</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>hcc</PostUserNickName>
<rank>三级(初级)</rank>
<ranknum>user3</ranknum>
<credit>100</credit>
<ReplyID>2472692</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>24522</PostUserId>
<PostUserName>hccpro</PostUserName>
<Point>1</Point>
<Content>不好精确判断，一般用session.getAttribute("xxx")一个session值，判断是否为null
即可。

高级点的就用事件</Content>
<PostDateTime>2001-11-13 22:48:28</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>二流带刀</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>100</credit>
<ReplyID>2476522</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>151608</PostUserId>
<PostUserName>mechiland</PostUserName>
<Point>15</Point>
<Content>在最顶级窗口(即最有可能被最后一个关掉的)中加入以下代码:
1.在&lt;head&gt;区域中加入
&lt;script&#32;language="javascript"&gt;
function&#32;exitIt()
{
&#32;&#32;&#32;&#32;if(!confirm("你确定要退出吗?"))&#32;&#32;//判断
&#32;&#32;&#32;&#32;{
&#32;&#32;&#32;&#32;&#32;&#32;&#32;&#32;window.open('exit.htm','exit','width=10,height=10');
&#32;&#32;&#32;&#32;}
&#32;&#32;&#32;&#32;return&#32;false;
}
&lt;/script&gt;

2.在同一文件的body区域中加入:&lt;onUnload="exitIt()"&gt;
3.新建一文件,名为exit.html
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;退出&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;%
//在这里加入退出控制,如将用户离线的消息写入数据库,等等.

%&gt;
&lt;script&#32;language="javascript"&gt;
//关闭当前窗口
self.close();
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;


</Content>
<PostDateTime>2001-11-14 12:36:13</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>二流带刀</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>100</credit>
<ReplyID>2476544</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>151608</PostUserId>
<PostUserName>mechiland</PostUserName>
<Point>0</Point>
<Content>写错了,if(!confirm("你确定要退出吗?"))&#32;&#32;//判断
&#32;&#32;&#32;&#32;应为
if(confirm("你确定要退出吗?"))

写翻了,不好意思.</Content>
<PostDateTime>2001-11-14 12:37:36</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>在别处</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>82</credit>
<ReplyID>2480804</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84080</PostUserId>
<PostUserName>colababy</PostUserName>
<Point>0</Point>
<Content>关注！关注！关注！
继续关注！继续关注！继续关注！</Content>
<PostDateTime>2001-11-14 18:32:52</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>杨柳疯</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>100</credit>
<ReplyID>2493217</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>121984</PostUserId>
<PostUserName>hendrix</PostUserName>
<Point>0</Point>
<Content>这个东东还是需要继续继续！我关注中……请置顶</Content>
<PostDateTime>2001-11-15 22:08:24</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>兔子王</PostUserNickName>
<rank>三级(初级)</rank>
<ranknum>user3</ranknum>
<credit>100</credit>
<ReplyID>2494865</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>152294</PostUserId>
<PostUserName>KingRabbit</PostUserName>
<Point>1</Point>
<Content>二流带刀老先生，如果用户死机，或别的异常不能通知主机的话，不就死悄悄了，请问如何避免这种情况？
</Content>
<PostDateTime>2001-11-16 9:26:10</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>在别处</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>82</credit>
<ReplyID>2494984</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84080</PostUserId>
<PostUserName>colababy</PostUserName>
<Point>0</Point>
<Content>二流带刀老先生,你的这个方法的适应性值得讨论
大家想想&#32;新浪&#32;的处理方式？是怎样的呢？
继续关注中</Content>
<PostDateTime>2001-11-16 9:35:04</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>一王情深---芙蓉王</PostUserNickName>
<rank>三级(初级)</rank>
<ranknum>user3</ranknum>
<credit>100</credit>
<ReplyID>2495040</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>88735</PostUserId>
<PostUserName>lgcfm</PostUserName>
<Point>1</Point>
<Content>to:mechiland(二流带刀)　

你的方法在正常连接下可以实现，但是一旦用户断线、非法操作，停电、等等，不正常的推出怎么办呢！</Content>
<PostDateTime>2001-11-16 9:38:55</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>在别处</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>82</credit>
<ReplyID>2496211</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84080</PostUserId>
<PostUserName>colababy</PostUserName>
<Point>0</Point>
<Content>shine_car
你到底解决没有&#32;？
</Content>
<PostDateTime>2001-11-16 11:08:17</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>快乐数据</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>100</credit>
<ReplyID>2496871</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>138393</PostUserId>
<PostUserName>happynet</PostUserName>
<Point>1</Point>
<Content>关注</Content>
<PostDateTime>2001-11-16 11:57:04</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>二流带刀</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>100</credit>
<ReplyID>2501768</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>151608</PostUserId>
<PostUserName>mechiland</PostUserName>
<Point>0</Point>
<Content>。。。如果死机，或者其他非正常退出情况，可以通过session&#32;bean&#32;来解决(例如,30分钟客户端不向服务器端提交数据就关闭数据库连接)。就想asp的global.asa一样,只是我还没有搞到global.jsa的资料,那位弄到了,告诉我先!

另外,我不老,不要叫我老先生.</Content>
<PostDateTime>2001-11-16 18:55:01</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>I&#32;can&#32;do</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>111</credit>
<ReplyID>2519988</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84967</PostUserId>
<PostUserName>shine_car</PostUserName>
<Point>0</Point>
<Content>谢谢大家的帮助，问题是我这里没有顶级页面可言，如何判断他已经关闭了所有的页面。太难了！！！！&#32;大家继续探讨，我用的是比较愚蠢的办法。弄一个iframe&#32;页面（隐藏）放在在所有的页面里，(每两分钟)向一个application更新这个用户的最后刷新时间，如果读取这个application发现有最后刷新时间与当前时间比较大于2分钟就认为用户关闭所有的页面。不过效率及其低下。（继续探讨，来者有份）</Content>
<PostDateTime>2001-11-19 12:30:51</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>I&#32;can&#32;do</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>111</credit>
<ReplyID>2520072</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84967</PostUserId>
<PostUserName>shine_car</PostUserName>
<Point>0</Point>
<Content>另外：对于每一个session都有唯一一个id号，在服务器端如何读取每一个客户端的这个Id&#32;号</Content>
<PostDateTime>2001-11-19 12:38:19</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>I&#32;can&#32;do</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>111</credit>
<ReplyID>2539016</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84967</PostUserId>
<PostUserName>shine_car</PostUserName>
<Point>0</Point>
<Content>anyOne&#32;here?</Content>
<PostDateTime>2001-11-21 12:24:42</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>在别处</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>82</credit>
<ReplyID>2542072</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84080</PostUserId>
<PostUserName>colababy</PostUserName>
<Point>0</Point>
<Content>every&#32;One&#32;here
but&#32;,where&#32;are&#32;you?
haha,car&#32;car
:-)
@_@</Content>
<PostDateTime>2001-11-21 16:35:37</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>在别处</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>82</credit>
<ReplyID>2542147</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84080</PostUserId>
<PostUserName>colababy</PostUserName>
<Point>0</Point>
<Content>哈哈！
any&#32;one&#32;here??
oh,my&#32;god!any&#32;one&#32;here??
i&#32;want&#32;to&#32;know&#32;any&#32;one&#32;here??
i&#32;want&#32;to&#32;know&#32;在线用户有谁？，主要是想知道&#32;用户关闭所有窗口（即他已经不在线了）？
你在线吗？
继续关注！加油！
</Content>
<PostDateTime>2001-11-21 16:40:58</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>林材</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>100</credit>
<ReplyID>2542553</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>102177</PostUserId>
<PostUserName>southline</PostUserName>
<Point>0</Point>
<Content>继续说
</Content>
<PostDateTime>2001-11-21 17:09:08</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>快乐数据</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>100</credit>
<ReplyID>2732173</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>138393</PostUserId>
<PostUserName>happynet</PostUserName>
<Point>0</Point>
<Content>这问题还没搞定！有谁知道的呀！</Content>
<PostDateTime>2001-12-11 12:02:36</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>阿水</PostUserNickName>
<rank>四级(中级)</rank>
<ranknum>user4</ranknum>
<credit>100</credit>
<ReplyID>2732368</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>68069</PostUserId>
<PostUserName>Fancy_fan</PostUserName>
<Point>2</Point>
<Content>你在每个用户进入的时候把所有用户的状态检测一遍就可以了！如果session.timeout,就自动把状态刷新一遍！</Content>
<PostDateTime>2001-12-11 12:20:56</PostDateTime>
</Reply>
<Reply>
<PostUserNickName>I&#32;can&#32;do</PostUserNickName>
<rank>二级(初级)</rank>
<ranknum>user2</ranknum>
<credit>111</credit>
<ReplyID>3595111</ReplyID>
<TopicID>366150</TopicID>
<PostUserId>84967</PostUserId>
<PostUserName>shine_car</PostUserName>
<Point>0</Point>
<Content>哎，使用Servlet&#32;2.3新增web&#32;application&#32;listener可以搞定写一个Listener类对session的创建和消除进行侦听。

import&#32;javax.servlet.*;
import&#32;javax.servlet.http.*;

public&#32;class&#32;CounterListener&#32;implements&#32;HttpSessionListener&#32;{
&#32;&#32;&#32;private&#32;int&#32;count&#32;=&#32;0;

&#32;&#32;&#32;public&#32;synchronized&#32;void&#32;sessionCreated(HttpSessionEvent&#32;se)&#32;{
&#32;&#32;&#32;&#32;&#32;&#32;&#32;count++;
&#32;&#32;&#32;}

&#32;&#32;&#32;public&#32;synchronized&#32;void&#32;sessionDestroyed(HttpSessionEvent&#32;se)&#32;{
&#32;&#32;&#32;&#32;&#32;&#32;&#32;count--;
&#32;&#32;&#32;}

&#32;&#32;&#32;public&#32;int&#32;getCount()&#32;{
&#32;&#32;&#32;&#32;&#32;&#32;&#32;return&#32;count;
&#32;&#32;&#32;}
}
</Content>
<PostDateTime>2002-2-21 17:18:07</PostDateTime>
</Reply>
</Replys>
</Topic>

⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -