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404页面是什么？

404页面是客户端在浏览网页时，服务器无法正常提供信息，或是服务器无法回应，且不知道原因所返回的页面。据说在第三次科技革命之前，互联网的形态就是一个大型的中央数据库，这个数据库就设置在404房间里面。那时候所有的请求都是由人工手动完成的，如果在数据库中没有找到请求者所需要的文件，或者由于请求者写错了文件编号，用户就会得到一个返回信息：room 404 : file not found。404错误信息通常是在目标页面被更改或移除，或客户端输入页面地址错误后显示的页面，人们也就习惯了用404作为服务器未找到文件的错误代码了。当然实际考证传说中的room 404是不存在的，在http请求3位的返回码中，4开头的代表客户错误，5开头代表服务器端错误。

Public @ 2014-05-13 16:11:01

子域名和目录怎么选择呢？

当网站发展到一定时期，想要扩大网站规模、建立新频道的时候，相信很多人和我一样在选择二级域名和二级目录上犯了难。这篇文章我深入分析之后给出了答案。如果你的网站在使用二级域名和二级目录捉摸不定的时候，看看此文，会对你有所帮助的。首先，我们来看看什么是二级域名，什么是二级目录？1：二级域名:需要创建二级域名，设置DNS，修改A记录，指定IP等操作。具体建网站或者编辑网页时，需要对不同二级域名下的内容分开

Public @ 2020-08-03 16:11:41

Sitemap介绍

对于网站中希望360搜索抓取的网页url，站长可以将其制作成标准的Sitemap（站点地图）文件。站长提交后Sitemap文件后，360搜索会使用Sitemap中的内容来了解网站结构等信息，有助于今后更全面、更快速地对网站进行抓取。但我们不保证一定会抓取及索引Sitemap中所有网址，也不保证其在搜索结果中的排名。点此提交Sitemap网址

Public @ 2014-04-17 16:11:52

Apache IIS/.net 制作404页面

Apache服务器上创建404页面： 1. 创建一个新文本文件，命名为404.html（注意，扩展名必须为html）。 2. 打开这个文件，并添加如下代码： 404页面不在这里抱歉，您正在寻找的页面不在这里请尝试检查您输入的URL或联系网站管理员。 3. 保存文件并将其上传到您的网站根目录下的相

Public @ 2023-04-17 19:50:47

404页面设置方法

1. 通过服务器配置文件设置404页面可以在服务器配置文件中添加以下代码来设置404页面： ``` ErrorDocument 404 /404.html ``` 在这个例子中，当用户请求一个不存在的页面时，服务器会返回404错误，并重新定向到404.html页面。 2. 使用.htaccess文件设置404页面如果你使用的是 Apache 服务器，可以通过在网站根目录下创建一个.h

Public @ 2023-04-17 13:50:14

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基本文件流程错误 SQL 调试

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/www/wwwroot/briline.net/app/common/model/Hook.php ( 0.77 KB )
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[ DB ] CONNECT:[ UseTime:0.022758s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.017075s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4513 LIMIT 1 [ RunTime:0.015395s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.015597s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.015625s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.015767s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4513 LIMIT 1 [ RunTime:0.015186s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] update `ob_article` set views=views+2 where id=4513 [ RunTime:0.015865s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站结构优化' AND `status` <> -1 LIMIT 1 [ RunTime:0.022005s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站结构优化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035068s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海404页面' AND `status` <> -1 LIMIT 1 [ RunTime:0.021949s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海404页面' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032152s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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