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什么是ETag？ETag作用有哪些

ETag是HTTP头的一部分，它是一个字符串标识一个web资源的特定版本。它由web服务器生成，用于标识文件的实体标签。ETag可以用来确定同一资源是否已被修改，这在缓存和验证客户端缓存文件是否过期时很有用。ETag的作用如下： 1.缓存控制：在HTTP响应头部中包含ETag可以帮助浏览器缓存和验证资源。如果资源没有发生任何改变，浏览器可以直接从本地缓存中获取资源，而不需要重新从服务器获取。 2.资源验证：如果浏览器的缓存过期或需要更新，它可以使用请求头中的ETag来验证资源是否已被修改。如果资源没有被修改，服务器可以发送一个响应代码为304的响应，告诉浏览器它可以继续使用缓存中的资源。 3.负载均衡：在使用多个Web服务器负载均衡时，ETag可以确保客户端的请求被重定向到与其之前请求相同的服务器。如果不使用ETag，则可能会发生客户端请求一个资源，但它需要从新的服务器获取，即使其他服务器已经有缓存。

Public @ 2023-06-10 23:50:20

百度搜索资源平台-死链提交工具增加功能公告

亲爱的网站管理员：百度站长平台在收集了广大网站管理员的需求后，请工程师对死链提交工具进行了升级，升级后的死链提交工具提供规则提交功能，极大减轻了网站管理员的收集汇总工作，同时提高了工具效率。以下便是本次死链工具此次升级的两大亮点：1.支持死链规则提交。若网站出现某一目录或规则下链接全部死链的情况，可以提交相应的规则，即pattern形式提交死链，无需再汇总全部死链。协议死链、内容死链、跳转死链都可

Public @ 2012-04-04 16:07:05

新版闭站保护工具上线公告

] 尊敬的建站用户：为了更好地保护您的站点安全，维护网络秩序，我们推出了新版本的闭站保护工具，有效防止任何非法攻击。具体功能： 1、以自动化的方式对每一次访问进行认证，可设定合法的IP地址范围，及时阻止攻击者的入侵攻击； 2、更新IP黑名单，实时发现、阻止恶意攻击。 3、兼容移动端网站，适用于iOS系统及Android系统。 4、配备智能防护措施，可实现动态收集各种攻击行为，在被

Public @ 2023-02-28 21:48:42

什么是Sitemap

Sitemap（即站点地图）就是您网站上各网页的列表。创建并提交Sitemap有助于百度发现并了解您网站上的所有网页。您还可以使用Sitemap提供有关您网站的其他信息，如上次更新日期、Sitemap文件的更新频率等，供百度Spider参考。百度对已提交的数据，不保证一定会抓取及索引所有网址。但是，我们会使用Sitemap中的数据来了解网站的结构等信息，这样可以帮助我们改进抓取策略，并在日后能更好

Public @ 2013-10-13 16:09:44

应该将 Sitemap 文件放在哪里？

建议将 Sitemap 放在 HTML 服务器的根目录中，即 http://www.example.com/sitemap.xml。某些情况下，例如您公司网站允许对应不同的目录划分写入权限，这时您或许希望在网站上针对不同的路径创建不同的 Sitemap。如果您有上传到 “http://www.example.com/路径/sitemap.xml” 的权限，那么您可以针对 “http://www.e

Public @ 2021-07-26 16:11:56

更多您感兴趣的搜索

基本文件流程错误 SQL 调试

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/www/wwwroot/briline.net/public/public.php ( 1.08 KB )
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/www/wwwroot/briline.net/thinkphp/convention.php ( 10.31 KB )
/www/wwwroot/briline.net/thinkphp/library/think/App.php ( 21.04 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Request.php ( 50.94 KB )
/www/wwwroot/briline.net/app/config.php ( 11.25 KB )
/www/wwwroot/briline.net/app/database.php ( 1.41 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Hook.php ( 4.76 KB )
/www/wwwroot/briline.net/app/tags.php ( 1.16 KB )
/www/wwwroot/briline.net/app/common/behavior/InitBase.php ( 8.17 KB )
/www/wwwroot/briline.net/app/common.php ( 23.29 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Env.php ( 1.25 KB )
/www/wwwroot/briline.net/thinkphp/helper.php ( 17.86 KB )
/www/wwwroot/briline.net/app/function.php ( 0.78 KB )
/www/wwwroot/briline.net/app/extend.php ( 13.29 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Debug.php ( 7.06 KB )
/www/wwwroot/briline.net/app/common/model/Config.php ( 0.78 KB )
/www/wwwroot/briline.net/app/common/model/ModelBase.php ( 12.18 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Model.php ( 66.83 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Db.php ( 6.54 KB )
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/www/wwwroot/briline.net/thinkphp/library/think/db/connector/Mysql.php ( 3.94 KB )
/www/wwwroot/briline.net/thinkphp/library/think/db/Connection.php ( 29.97 KB )
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/www/wwwroot/briline.net/thinkphp/library/think/db/builder/Mysql.php ( 2.16 KB )
/www/wwwroot/briline.net/thinkphp/library/think/db/Builder.php ( 30.47 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Cache.php ( 6.17 KB )
/www/wwwroot/briline.net/thinkphp/library/think/cache/driver/File.php ( 7.46 KB )
/www/wwwroot/briline.net/thinkphp/library/think/cache/Driver.php ( 5.52 KB )
/www/wwwroot/briline.net/app/common/behavior/InitHook.php ( 1.25 KB )
/www/wwwroot/briline.net/app/common/model/Hook.php ( 0.77 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Lang.php ( 6.95 KB )
/www/wwwroot/briline.net/thinkphp/lang/zh-cn.php ( 3.85 KB )
/www/wwwroot/briline.net/app/route.php ( 0.91 KB )
/www/wwwroot/briline.net/app/index/config.php ( 0.96 KB )
/www/wwwroot/briline.net/app/index/common.php ( 0.68 KB )
/www/wwwroot/briline.net/app/index/controller/Wiki.php ( 2.44 KB )
/www/wwwroot/briline.net/app/index/controller/IndexBase.php ( 1.10 KB )
/www/wwwroot/briline.net/app/common/controller/ControllerBase.php ( 4.75 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Controller.php ( 6.20 KB )
/www/wwwroot/briline.net/thinkphp/library/traits/controller/Jump.php ( 4.97 KB )
/www/wwwroot/briline.net/thinkphp/library/think/View.php ( 6.86 KB )
/www/wwwroot/briline.net/thinkphp/library/think/view/driver/Think.php ( 5.61 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Template.php ( 46.46 KB )
/www/wwwroot/briline.net/thinkphp/library/think/template/driver/File.php ( 2.24 KB )
/www/wwwroot/briline.net/app/index/logic/Wiki.php ( 6.16 KB )
/www/wwwroot/briline.net/app/index/logic/IndexBase.php ( 0.79 KB )
/www/wwwroot/briline.net/app/common/logic/LogicBase.php ( 0.83 KB )
/www/wwwroot/briline.net/app/common/model/Article.php ( 0.78 KB )
/www/wwwroot/briline.net/app/common/model/ArticleTongji.php ( 0.79 KB )
/www/wwwroot/briline.net/thinkphp/library/think/paginator/driver/Bootstrap.php ( 5.90 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Paginator.php ( 9.45 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Collection.php ( 8.63 KB )
/www/wwwroot/briline.net/runtime/temp/ead4923c25a6b3f986358f7070f93dfa.php ( 56.51 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Response.php ( 8.64 KB )
/www/wwwroot/briline.net/thinkphp/library/think/debug/Html.php ( 4.27 KB )

[ DB ] CONNECT:[ UseTime:0.025938s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.018515s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.017586s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.018420s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.017419s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018543s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8735 LIMIT 1 [ RunTime:0.017502s ]
[ 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:0.017718s ]
[ 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:0.017901s ]
[ 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:0.018008s ]
[ 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` = 8735 LIMIT 1 [ RunTime:0.017388s ]
[ 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=8735 [ RunTime:0.020002s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海百度搜索资源平台' AND `status` <> -1 LIMIT 1 [ RunTime:0.024948s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海百度搜索资源平台' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.042918s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海Sitemap' AND `status` <> -1 LIMIT 1 [ RunTime:0.024956s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海Sitemap' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034879s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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