A PHP Error was encountered

Severity: Warning

Message: Declaration of Administrator::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: system/Administrator.php

Line Number: 259

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Administrator::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: system/Administrator.php

Line Number: 281

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Menu::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: system/Menu.php

Line Number: 82

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Menu::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: system/Menu.php

Line Number: 95

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of MenuCategory::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: system/MenuCategory.php

Line Number: 58

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/Menu.php
Line: 29
Function: model

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of MenuCategory::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: system/MenuCategory.php

Line Number: 68

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/Menu.php
Line: 29
Function: model

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Logo::upload_image($sub_idx) should be compatible with MY_Model::upload_image($idx, $temp_key = NULL)

Filename: system/Logo.php

Line Number: 100

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 12
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Logo::delete_image($sub_idx = NULL) should be compatible with MY_Model::delete_image($idx, $temp_key = NULL)

Filename: system/Logo.php

Line Number: 119

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/BackPlatform.php
Line: 12
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of SEO::insert($property, $property_idx, $data) should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: system/SEO.php

Line Number: 129

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of SEO::update($property, $property_idx, $data) should be compatible with MY_Model::update($idx, $data)

Filename: system/SEO.php

Line Number: 151

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of SiteInfo::get() should be compatible with MY_Model::get($idx)

Filename: system/SiteInfo.php

Line Number: 24

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of SiteInfo::update() should be compatible with MY_Model::update($idx, $data)

Filename: system/SiteInfo.php

Line Number: 37

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Google::update() should be compatible with MY_Model::update($idx, $data)

Filename: system/Google.php

Line Number: 34

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 7
Function: __construct

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Article::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/Article.php

Line Number: 257

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Article::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Article.php

Line Number: 285

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Article::upload_image($idx, $sub_idx) should be compatible with MY_Model::upload_image($idx, $temp_key = NULL)

Filename: customize/Article.php

Line Number: 307

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Article_category::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/Article_category.php

Line Number: 49

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 31
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Article_category::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Article_category.php

Line Number: 61

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 31
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Article_tag::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Article_tag.php

Line Number: 71

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 32
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of A2t::insert($article_idx, $tag_idx) should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/A2t.php

Line Number: 134

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/Article_tag.php
Line: 20
Function: model

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 32
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of A2p::insert($article_idx, $product_idx) should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/A2p.php

Line Number: 134

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 33
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Product::insert($temp_key) should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/Product.php

Line Number: 288

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/A2p.php
Line: 19
Function: model

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 33
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Product::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Product.php

Line Number: 305

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/A2p.php
Line: 19
Function: model

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 33
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Product_category::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/Product_category.php

Line Number: 189

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/Product.php
Line: 39
Function: model

File: /home2/beta/public_html/lupopi/application/models/customize/A2p.php
Line: 19
Function: model

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 33
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Product_category::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Product_category.php

Line Number: 202

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/customize/Product.php
Line: 39
Function: model

File: /home2/beta/public_html/lupopi/application/models/customize/A2p.php
Line: 19
Function: model

File: /home2/beta/public_html/lupopi/application/models/customize/Article.php
Line: 33
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 8
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of A2c::insert($article_idx, $category_idx) should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/A2c.php

Line Number: 132

Backtrace:

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 14
Function: model

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Tracking_code::insert($temp_key) should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/Tracking_code.php

Line Number: 35

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Tracking_code::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Tracking_code.php

Line Number: 47

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of About::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/About.php

Line Number: 25

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 10
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of About::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/About.php

Line Number: 36

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 10
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Service::insert() should be compatible with MY_Model::insert($data, $temp_key = NULL)

Filename: customize/Service.php

Line Number: 25

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 11
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Service::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Service.php

Line Number: 38

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 11
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Front_menu::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Front_menu.php

Line Number: 102

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 12
Function: model

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

爬蟲(crawler)是什麼? 爬蟲的運作原理

A PHP Error was encountered

Severity: Warning

Message: Declaration of User::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/User.php

Line Number: 89

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/user_helper.php
Line: 23
Function: model

File: /home2/beta/public_html/lupopi/application/views/front/common/menu_mobile.php
Line: 17
Function: is_user_login

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 66
Function: view

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Cart_setting::get() should be compatible with MY_Model::get($idx)

Filename: system/Cart_setting.php

Line Number: 18

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/Cart.php
Line: 11
Function: model

File: /home2/beta/public_html/lupopi/application/helpers/cart_helper.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/views/front/common/menu_mobile.php
Line: 23
Function: get_cart_quantity

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 66
Function: view

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Cart_setting::update() should be compatible with MY_Model::update($idx, $data)

Filename: system/Cart_setting.php

Line Number: 31

Backtrace:

File: /home2/beta/public_html/lupopi/application/models/system/Cart.php
Line: 11
Function: model

File: /home2/beta/public_html/lupopi/application/helpers/cart_helper.php
Line: 9
Function: model

File: /home2/beta/public_html/lupopi/application/views/front/common/menu_mobile.php
Line: 23
Function: get_cart_quantity

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 66
Function: view

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 207
Function: get_header_footer

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

0

A PHP Error was encountered

Severity: Warning

Message: Declaration of Page_banner::update($idx) should be compatible with MY_Model::update($idx, $data)

Filename: customize/Page_banner.php

Line Number: 98

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 153
Function: model

File: /home2/beta/public_html/lupopi/application/views/front/blog/main.php
Line: 1
Function: get_page_banner

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 214
Function: view

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Declaration of Page_banner::upload_image($idx, $sub_idx) should be compatible with MY_Model::upload_image($idx, $temp_key = NULL)

Filename: customize/Page_banner.php

Line Number: 110

Backtrace:

File: /home2/beta/public_html/lupopi/application/helpers/header_helper.php
Line: 153
Function: model

File: /home2/beta/public_html/lupopi/application/views/front/blog/main.php
Line: 1
Function: get_page_banner

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 214
Function: view

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type bool

Filename: blog/detail.php

Line Number: 19

Backtrace:

File: /home2/beta/public_html/lupopi/application/views/front/blog/detail.php
Line: 19
Function: _error_handler

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 213
Function: view

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

" alt="

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type bool

Filename: blog/detail.php

Line Number: 19

Backtrace:

File: /home2/beta/public_html/lupopi/application/views/front/blog/detail.php
Line: 19
Function: _error_handler

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 213
Function: view

File: /home2/beta/public_html/lupopi/application/controllers/Blog.php
Line: 224
Function: article

File: /home2/beta/public_html/lupopi/index.php
Line: 317
Function: require_once

" class="img-fluid">

爬蟲(crawler)是什麼? 爬蟲的運作原理

網站搬家 產品開箱 網頁相關
最近常常看到 fb 廣告

開課教別人寫爬蟲

然後自己做金融的服務

能夠用別人的資料來做自己的金融模型

當然是很好

但什麼是爬蟲?





爬蟲是一種程式

簡單說就是瀏覽器

只是一般瀏覽器需要把網頁敘述(hml)變成網頁內容 (文字/圖片)

爬蟲不需要顯示內容

只要把需要的內容解析出來

 

例如Google就有爬蟲

會來爬你的網頁

然後索引你的內容

提供大家去搜尋引擎查詢

 

那金融的爬蟲

主要是去各大揭露商品報價的網站

爬取交易的數值

存在自己的資料庫中

再用自己的算式去算各種數據指標

 

聽起來爬蟲很厲害

只要會寫爬蟲程式 就可以上網爬各式各樣的資料

然後自己存起來

分析分析 又可以拿出去賣錢

真棒

那寫爬蟲爬人家的資料 都不會有什麼問題嗎?



問題一堆

 

著作權/版權問題


如果你爬的是人家彙整過的資料

理論上都有這類的問題

要是被發現你未經許可 爬人家的資料

重製販售

對方"應該"可以採取法律行動

不是沒被告 只是人家還在養大魚

這類的法律問題我是外行人

我們請方道樞律師特別撰文說明XD

 

授權/經營問題


既然沒有得到別人的授權

人家就算不告你 也可以整你

只要人家天天改格式 或是知道爬蟲的IP/行為

把你的爬蟲封了

你就沒搞頭了

看過這個介面吧?

這個就是 Google 做來檔機器人(爬蟲)的工具

Google Recaptcha



爬蟲可不會去點 "我不是機器人"

就算去點

Google Recaptcha 也會出現機器人難以辨識的圖片



跟 Google 鬥智簡直找死

一開始你的資料源可能讓你爬

把你養大

等你大了 賺錢了

再來收割 斷掉你的資料

等你無法跟客戶交代 再出手跟你要錢

 

爬蟲不是永遠可靠有效/有用


如同上述問題

也許資料源不是故意要封鎖你

他只是改版一下

你的爬蟲可能就因為網頁的格式變更

得重新寫

有可能是小改

但也有可能是大改

如果你沒有自己的團隊

是很難持續維護 或是應付這種突發情況

 

我手上有個服務叫做 seo-rank.tw

是拿來爬關鍵字排名的

之前也是爬 Google 的搜尋結果

通常都是等客戶反應沒排名

我才知道爬蟲掛了

每當掛了

我就得熬夜修改程式

因為客戶不能一天沒有排名

我自己是工程師 所以我能自己改

如果你的服務有爬蟲 又沒有工程師

那你就死定了

後來我發現網路上有資訊源

而且是花錢就可以解決

我直接就串對方API

把爬蟲都收了

因為維護爬蟲實在是太累了

 

結論


爬蟲對初期創業來說可能是個機會

但如果有一定的規模 有賺錢後

最好還是弄個付費可靠的資料源

不然這種生意是不會長久的