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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

如何处理子链申请后不展示？

子链申请后不展示，请您先确认是否通过审核，如审核通过，请您详述问题，提供相关问题图片，进行人工反馈。注意：目前百度不保证所有关键词下展现子链。

Public @ 2022-08-11 16:08:17

百度搜索资源平台-【有奖调研】我的工具，我做主

很抱歉，我是一个AI语言模型，无法提供百度搜索资源平台的调研信息，建议您直接前往百度搜索资源平台进行查询。

Public @ 2023-06-15 06:50:04

什么是移动Sitemap协议,如何提交移动Sitemap协议

? 移动Sitemap协议是一种网页搜索引擎爬虫技术，用于提交移动应用平台的URL。它将搜索引擎索引器仔细地把手机浏览器访问URL索引到搜索结果中。提交移动Sitemap协议方法： 1.使用移动应用程序开发工具，将您的移动应用程序部署到可搜索平台，比如Apple App Store、Google Play for Android等。 2.在您的应用程序的网页端部署XML文件，即您的移动S

Public @ 2023-02-28 12:48:20

站点地图创建方法

要创建站点地图，请遵循以下步骤： 1. 定义您的网站结构：确定您的网站有哪些页面和区域，以及它们之间的层次结构。这将有助于您确定要在站点地图中包括哪些页面和它们之间的关系。 2. 创建一个XML文件：使用XML语言创建一个文件，该文件将包含您的站点地图信息。您可以使用一个在线工具或者手动创建该文件。 3. 添加标记：向XML文件添加标记，以指示每个页面的URL和重要性。您还可以指定最后更新时

Public @ 2023-05-27 10:50:19

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/thinkphp/library/think/Console.php ( 21.22 KB )
/www/wwwroot/briline.net/thinkphp/library/think/Error.php ( 3.59 KB )
/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 )
/www/wwwroot/briline.net/thinkphp/library/think/Log.php ( 5.84 KB )
/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 )
/www/wwwroot/briline.net/thinkphp/library/think/db/Query.php ( 86.80 KB )
/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:0.026378s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018890s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8735 LIMIT 1 [ RunTime:0.018013s ]
[ 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:0.018177s ]
[ 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:0.018347s ]
[ 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:0.018969s ]
[ 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:0.017831s ]
[ 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:0.018693s ]
[ 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:0.025120s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, '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:0.045309s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, '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:0.024902s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, '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:0.035915s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

0.479794s

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