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网络爬虫（Spider）

威海Spider 威海Spider
2031

网络爬虫（又被称为网页蜘蛛，网络机器人，查找引擎蜘蛛，在FOAF社区中心，更常常的称为网页追逐者），是一种依照必定的规矩，主动的抓取万维网信息的程序或许脚本，别的一些不常运用的姓名还有蚂蚁，主动索引，模拟程序或许蠕虫

Public @ 2017-12-30 16:22:38

各搜索引擎蜘蛛介绍

威海Spider 威海Spider
1516

搜索引擎蜘蛛是搜索引擎的一个自动程序。它的作用是访问互联网上的网页、图片、视频等内容，建立索引数据库，使用户能在搜索引擎中搜索到您网站的网页、图片、视频等内容。一般用法为“ spider+URL”，后面的URL(网址)是搜索引擎的痕迹，如果要查看某搜索引擎是否来爬取过你们的网站，可查看服务器的日志里是否有该URL,同时还能查看来的时间、频率等…1、百度蜘蛛：可以根据服务器的负载能力调节访问密度，大

Public @ 2011-05-10 16:22:33

【官方说法】只需两步，正确识别百度蜘蛛（User-Agent）

威海Spider 威海Baiduspider
1542

步骤一：查看User-Agent字段，百度蜘蛛的User-Agent为：Baiduspider 步骤二：查看IP来源，如果IP来源为baidu.com，则为百度蜘蛛。

Public @ 2023-06-14 09:00:07

网络爬虫（Spider）

威海Spider 威海Spider
2033

网络爬虫（又被称为网页蜘蛛，网络机器人，查找引擎蜘蛛，在FOAF社区中心，更常常的称为网页追逐者），是一种依照必定的规矩，主动的抓取万维网信息的程序或许脚本，别的一些不常运用的姓名还有蚂蚁，主动索引，模拟程序或许蠕虫

Public @ 2017-12-30 16:22:38

网站抓取了一些不存在的目录跟页面?

威海seo问答威海Spider
1537

1. 重新编辑robots.txt文件，将网站中不需要抓取的页面和目录添加进去； 2. 如果抓取的网站带有反爬虫功能，建议可以设置User-Agent，以区分人为访问和爬虫程序进行访问； 3. 设置深度抓取，让程序对某个网页进行抓取时，只抓取它指定难度及深度的URL； 4. 不定时发起网站扫描任务，用来检查异常的URL，以及分析抓取URL的情况，同时将发现的问题处理掉； 5. 合理设置

Public @ 2023-02-24 22:36:31

更多您感兴趣的搜索

基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.027647s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.019689s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 5400 LIMIT 1 [ RunTime:0.018855s ]
[ 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:0.019038s ]
[ 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:0.019743s ]
[ 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:0.021443s ]
[ 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` = 5400 LIMIT 1 [ RunTime:0.018740s ]
[ 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=5400 [ RunTime:0.019651s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海Spider' AND `status` <> -1 LIMIT 1 [ RunTime:0.026010s ]
[ 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Spider' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.052703s ]
[ 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Spider' AND `status` <> -1 LIMIT 1 [ RunTime:0.029538s ]
[ 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Spider' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.047483s ]
[ 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', ) ]

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