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蜘蛛程序（spider）是一種按照一定規(guī)則自動(dòng)地在互聯(lián)網(wǎng)上檢索和獲取信息的計(jì)算機(jī)程序。蜘蛛程序的工作方式類似于蜘蛛在網(wǎng)上爬行，它通過網(wǎng)絡(luò)鏈接搜索引擎等目標(biāo)網(wǎng)站的頁面，并按照預(yù)先設(shè)定的算法和規(guī)則提取所需的信息。蜘蛛程序主要用于搜索引擎的建立與維護(hù)，它們能夠自動(dòng)化地獲取大量的網(wǎng)頁內(nèi)容，并將其存儲(chǔ)在搜索引擎的數(shù)據(jù)庫中。蜘蛛程序可以按照用戶設(shè)定的關(guān)鍵詞和搜索模式來搜索相關(guān)的網(wǎng)頁，然后將搜索結(jié)果進(jìn)行分析和排序，為用戶提供準(zhǔn)確的檢索結(jié)果。蜘蛛程序的工作流程一般包括以下幾個(gè)步驟：首先，蜘蛛程序會(huì)根據(jù)預(yù)設(shè)的起始鏈接開始抓取網(wǎng)頁。然后，它會(huì)解析網(wǎng)頁的各個(gè)元素，并提取出需要的信息，例如標(biāo)題、摘要、鏈接等。接著，蜘蛛程序會(huì)根據(jù)預(yù)設(shè)的規(guī)則和算法判斷網(wǎng)頁是否符合要求，如果符合則將其存儲(chǔ)起來，否則則將其丟棄。最后，蜘蛛程序會(huì)根據(jù)設(shè)定的策略和優(yōu)先級繼續(xù)抓取其他網(wǎng)頁，直到滿足設(shè)定的停止條件。蜘蛛程序的設(shè)計(jì)和實(shí)現(xiàn)需要考慮多個(gè)因素，例如網(wǎng)頁的數(shù)量、頻率和深度，訪問速度和負(fù)載均衡等。同時(shí)，為了防止惡意使用和濫用，蜘蛛程序還需要遵守網(wǎng)站的爬蟲協(xié)議和相關(guān)法律法規(guī)。總的來說，蜘蛛程序是一種高效的自動(dòng)化信息獲取工具，它在互聯(lián)網(wǎng)搜索和數(shù)據(jù)挖掘方面具有重要的應(yīng)用價(jià)值。

Public @ 2023-07-24 14:00:31

什么是Baiduspider

威海Spider 威海Baiduspider
1397

Baiduspider是百度搜索引擎的網(wǎng)絡(luò)爬蟲，用于自動(dòng)抓取和收錄互聯(lián)網(wǎng)中的信息。它通過抓取網(wǎng)頁內(nèi)容、鏈接和其他信息來建立網(wǎng)頁索引，以便用戶進(jìn)行搜索。Baiduspider被認(rèn)為是百度搜索引擎運(yùn)作的重要組成部分，有助于保持百度搜索結(jié)果的廣泛和準(zhǔn)確。

Public @ 2023-04-03 00:00:09

Baiduspider抓取造成的帶寬堵塞？

威海Spider 威海Baiduspider
1551

Baiduspider是百度搜索引擎的網(wǎng)絡(luò)爬蟲程序，用于抓取網(wǎng)頁內(nèi)容并建立索引。由于百度搜索引擎的流量龐大，Baiduspider的爬取行為可能會(huì)對網(wǎng)站的帶寬造成一定的壓力，尤其是對于小型網(wǎng)站或者帶寬較小的服務(wù)器來說，這種壓力可能會(huì)導(dǎo)致帶寬堵塞。當(dāng)Baiduspider爬取網(wǎng)頁時(shí)，它會(huì)發(fā)送大量的HTTP請求到目標(biāo)服務(wù)器，從而消耗服務(wù)器的帶寬資源。如果網(wǎng)站的帶寬無法滿足Baiduspider的抓

Public @ 2023-07-26 06:50:45

網(wǎng)絡(luò)爬蟲（Spider）

威海Spider 威海Spider
1530

網(wǎng)絡(luò)爬蟲（Spider）是一種自動(dòng)化程序，用于通過互聯(lián)網(wǎng)收集和抓取網(wǎng)頁信息。它模擬人類在瀏覽器中的操作，自動(dòng)訪問網(wǎng)站并抓取其中的信息。爬蟲的主要作用是幫助用戶快速地獲取海量數(shù)據(jù)，例如網(wǎng)頁內(nèi)容、圖片、音頻、視頻等，并將它們存儲(chǔ)在一個(gè)本地?cái)?shù)據(jù)庫中，以供后續(xù)處理和分析。在人工獲取數(shù)據(jù)耗時(shí)費(fèi)力的情況下，網(wǎng)絡(luò)爬蟲的應(yīng)用可以大大提高數(shù)據(jù)抓取效率，以及提高數(shù)據(jù)處理的準(zhǔn)確與可靠性。

Public @ 2023-06-02 04:00:09

360瀏覽器模擬百度搜索引擎蜘蛛訪問

威海Spider 威海Spider
1465

一般用在網(wǎng)站被掛馬以后，直接訪問沒有問題，可以通過模擬百度或其他搜索引擎來訪問，即可發(fā)現(xiàn)問題。比如下面的例子，直接訪問沒問題，使用模擬搜索引擎訪問即可發(fā)現(xiàn)問題。比如訪問一個(gè)針對搜索引擎掛馬的網(wǎng)頁：http://www.zttoten.com/index.php?rmlbgh=cbfmcm&westauditpageinfo=1 [這個(gè)地址可能會(huì)會(huì)失效]，這樣就可以看到被掛馬的情況。（默認(rèn)情

Public @ 2015-12-15 16:22:27

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基本文件流程錯(cuò)誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.022130s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.017756s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 9861 LIMIT 1 [ RunTime:0.014986s ]
[ 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:0.015824s ]
[ 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:0.015832s ]
[ 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:0.016031s ]
[ 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` = 9861 LIMIT 1 [ RunTime:0.015059s ]
[ 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=9861 [ RunTime:0.018886s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海Spider' AND `status` <> -1 LIMIT 1 [ RunTime:0.023671s ]
[ 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:0.033348s ]
[ 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:0.023116s ]
[ 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:0.032529s ]
[ 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', ) ]

0.439756s

Categories

Tags

蜘蛛程序（spider）

什么是Baiduspider

Baiduspider抓取造成的帶寬堵塞？

網(wǎng)絡(luò)爬蟲（Spider）

360瀏覽器模擬百度搜索引擎蜘蛛訪問

更多您感興趣的搜索

Categories

Tags

蜘蛛程序（spider）

什么是Baiduspider

Baiduspider抓取造成的帶寬堵塞？

網(wǎng)絡(luò)爬蟲（Spider）

360瀏覽器模擬百度搜索引擎蜘蛛訪問

更多您感興趣的搜索

Baiduspider抓取造成的帶寬堵塞？