{"id":923136,"date":"2024-06-06T12:46:31","date_gmt":"2024-06-06T12:46:31","guid":{"rendered":"https:\/\/proxyelite.info\/?p=923136"},"modified":"2025-06-04T03:03:34","modified_gmt":"2025-06-04T03:03:34","slug":"web-scraping-with-python-and-beautifulsoup-how-to-do-it-easily","status":"publish","type":"post","link":"https:\/\/proxyelite.info\/vi\/web-scraping-with-python-and-beautifulsoup-how-to-do-it-easily\/","title":{"rendered":"Qu\u00e9t web b\u1eb1ng Python v\u00e0 BeautifulSoup: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 th\u1ef1c hi\u1ec7n d\u1ec5 d\u00e0ng?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Qu\u00e9t web l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u00edch xu\u1ea5t th\u00f4ng tin t\u1eeb c\u00e1c trang web. N\u1ebfu b\u1ea1n \u0111ang mu\u1ed1n t\u00ecm hi\u1ec3u c\u00e1ch c\u1ea1o d\u1eef li\u1ec7u b\u1eb1ng Python v\u00e0 BeautifulSoup, h\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n th\u1ef1c hi\u1ec7n quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc. \u0110\u1ebfn cu\u1ed1i b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd bi\u1ebft c\u00e1ch lo\u1ea1i b\u1ecf nhi\u1ec1u trang, x\u1eed l\u00fd n\u1ed9i dung \u0111\u1ed9ng v\u00e0 s\u1eed d\u1ee5ng <a href=\"https:\/\/proxyelite.info\/vi\/solutions\/proxies-for-web-scraping\/\" data-type=\"link\" data-id=\"https:\/\/proxyelite.info\/solutions\/proxies-for-web-scraping\/\">m\u00e1y ch\u1ee7 proxy<\/a> \u0111\u1ec3 tr\u00e1nh ti\u1ebft l\u1ed9 \u0111\u1ecba ch\u1ec9 IP c\u1ee7a b\u1ea1n. H\u00e3y c\u00f9ng b\u1eaft \u0111\u1ea7u ngay nh\u00e9!<\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>M\u1ee5c l\u1ee5c<\/h2><nav><div><div><a href=\"#1-introduction-to-web-scraping\">1. Gi\u1edbi thi\u1ec7u v\u1ec1 Web Scraping<\/a><\/div><div><a href=\"#2-setting-up-your-environment\">2. Thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n<\/a><\/div><div><a href=\"#3-scraping-a-website-with-beautiful-soup\">3. Qu\u00e9t trang web b\u1eb1ng BeautifulSoup<\/a><div><div><a href=\"#importing-libraries\">Nh\u1eadp th\u01b0 vi\u1ec7n<\/a><\/div><div><a href=\"#fetching-the-web-page\">T\u00ecm n\u1ea1p trang Web<\/a><\/div><\/div><\/div><div><a href=\"#4-handling-multiple-pages\">4. X\u1eed l\u00fd nhi\u1ec1u trang<\/a><div><div><a href=\"#looping-through-pages\">L\u1eb7p qua c\u00e1c trang<\/a><\/div><\/div><\/div><div><a href=\"#5-using-proxies-to-avoid-ip-bans\">5. S\u1eed d\u1ee5ng proxy \u0111\u1ec3 tr\u00e1nh l\u1ec7nh c\u1ea5m IP<\/a><div><div><a href=\"#setting-up-a-proxy\">Thi\u1ebft l\u1eadp proxy<\/a><\/div><\/div><\/div><div><a href=\"#6-storing-data-in-csv-and-excel-formats\">6. L\u01b0u tr\u1eef d\u1eef li\u1ec7u \u1edf \u0111\u1ecbnh d\u1ea1ng CSV v\u00e0 Excel<\/a><div><div><a href=\"#saving-data-to-csv\">L\u01b0u d\u1eef li\u1ec7u v\u00e0o CSV<\/a><\/div><div><a href=\"#saving-data-to-excel\">L\u01b0u d\u1eef li\u1ec7u v\u00e0o Excel<\/a><\/div><div><a href=\"#sample-table-of-scraped-data\">B\u1ea3ng m\u1eabu d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c c\u1ea1o<\/a><\/div><\/div><\/div><div><a href=\"#7-conclusion\">7. K\u1ebft lu\u1eadn<\/a><\/div><\/div><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-introduction-to-web-scraping\">1. Gi\u1edbi thi\u1ec7u v\u1ec1 Web Scraping<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e9t web li\u00ean quan \u0111\u1ebfn vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c trang web b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c t\u1eadp l\u1ec7nh t\u1ef1 \u0111\u1ed9ng. K\u1ef9 thu\u1eadt n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u, theo d\u00f5i gi\u00e1 v\u00e0 t\u1ed5ng h\u1ee3p n\u1ed9i dung. Python, v\u1edbi c\u00e1c th\u01b0 vi\u1ec7n m\u1ea1nh m\u1ebd nh\u01b0 BeautifulSoup v\u00e0 Y\u00eau c\u1ea7u, gi\u00fap vi\u1ec7c qu\u00e9t web tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-setting-up-your-environment\">2. Thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u thu th\u1eadp d\u1eef li\u1ec7u, ch\u00fang ta c\u1ea7n thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n c\u1ee7a m\u00ecnh. \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c c\u00e0i \u0111\u1eb7t c\u00e1c th\u01b0 vi\u1ec7n c\u1ea7n thi\u1ebft. \u0110\u00e2y l\u00e0 c\u00e1ch b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">pip install requests beautifulsoup4 pandas<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng th\u01b0 vi\u1ec7n n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Y\u00eau c\u1ea7u<\/strong>: \u0110\u1ec3 l\u1ea5y n\u1ed9i dung c\u1ee7a c\u00e1c trang web.<\/li>\n\n\n\n<li><strong>S\u00fap \u0111\u1eb9p<\/strong>: \u0110\u1ec3 ph\u00e2n t\u00edch v\u00e0 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c t\u00e0i li\u1ec7u HTML.<\/li>\n\n\n\n<li><strong>g\u1ea5u tr\u00fac<\/strong>: \u0110\u1ec3 l\u01b0u tr\u1eef v\u00e0 thao t\u00e1c d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-scraping-a-website-with-beautiful-soup\">3. Qu\u00e9t trang web b\u1eb1ng BeautifulSoup<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi c\u00e0i \u0111\u1eb7t xong c\u00e1c th\u01b0 vi\u1ec7n, b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u vi\u1ebft t\u1eadp l\u1ec7nh thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh. H\u00e3y l\u1ea5y m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c qu\u00e9t m\u1ed9t trang web li\u1ec7t k\u00ea s\u00e1ch.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"importing-libraries\">Nh\u1eadp th\u01b0 vi\u1ec7n<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">import requests\nfrom bs4 import BeautifulSoup\nimport pandas as pd<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"fetching-the-web-page\">T\u00ecm n\u1ea1p trang Web<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">url = \"http:\/\/books.toscrape.com\/\"\nresponse = requests.get(url)\nhtml_content = response.text<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00e2n t\u00edch c\u00fa ph\u00e1p HTML<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">soup = BeautifulSoup(html_content, 'html.parser')<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-handling-multiple-pages\">4. X\u1eed l\u00fd nhi\u1ec1u trang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 lo\u1ea1i b\u1ecf nhi\u1ec1u trang, b\u1ea1n c\u1ea7n l\u1eb7p qua c\u00e1c trang v\u00e0 t\u00ecm n\u1ea1p d\u1eef li\u1ec7u t\u1eeb m\u1ed7i trang. \u0110\u00e2y l\u00e0 c\u00e1ch b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"looping-through-pages\">L\u1eb7p qua c\u00e1c trang<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">base_url = \"http:\/\/books.toscrape.com\/catalogue\/page-{}.html\"\ndata = &#91;]\n\nfor page_num in range(1, 51):  # Assuming there are 50 pages\n    response = requests.get(base_url.format(page_num))\n    soup = BeautifulSoup(response.text, 'html.parser')\n    \n    # Extract book data here and append to data list\n    books = soup.find_all('article', class_='product_pod')\n    for book in books:\n        title = book.h3.a&#91;'title']\n        price = book.find('p', class_='price_color').text\n        stock = book.find('p', class_='instock availability').text.strip()\n        \n        data.append({\n            \"Title\": title,\n            \"Price\": price,\n            \"Stock\": stock\n        })<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-using-proxies-to-avoid-ip-bans\">5. S\u1eed d\u1ee5ng proxy \u0111\u1ec3 tr\u00e1nh l\u1ec7nh c\u1ea5m IP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c trang web th\u01b0\u1eddng theo d\u00f5i \u0111\u1ecba ch\u1ec9 IP \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u. S\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n tr\u00e1nh \u0111\u01b0\u1ee3c s\u1ef1 c\u1ed1 n\u00e0y b\u1eb1ng c\u00e1ch che gi\u1ea5u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"setting-up-a-proxy\">Thi\u1ebft l\u1eadp proxy<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">proxies = {\n    \"http\": \"http:\/\/your_proxy_server:port\",\n    \"https\": \"http:\/\/your_proxy_server:port\",\n}\n\nresponse = requests.get(url, proxies=proxies)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng proxy, t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n qua m\u1ed9t m\u00e1y ch\u1ee7 kh\u00e1c, ng\u0103n trang web m\u1ee5c ti\u00eau ph\u00e1t hi\u1ec7n \u0111\u1ecba ch\u1ec9 IP c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"6-storing-data-in-csv-and-excel-formats\">6. L\u01b0u tr\u1eef d\u1eef li\u1ec7u \u1edf \u0111\u1ecbnh d\u1ea1ng CSV v\u00e0 Excel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi thu th\u1eadp d\u1eef li\u1ec7u, b\u1ea1n s\u1ebd mu\u1ed1n l\u01b0u tr\u1eef d\u1eef li\u1ec7u \u0111\u00f3 \u0111\u1ec3 ph\u00e2n t\u00edch th\u00eam. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Pandas \u0111\u1ec3 l\u01b0u d\u1eef li\u1ec7u \u1edf \u0111\u1ecbnh d\u1ea1ng CSV ho\u1eb7c Excel.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"saving-data-to-csv\">L\u01b0u d\u1eef li\u1ec7u v\u00e0o CSV<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">df = pd.DataFrame(data)\ndf.to_csv('books.csv', index=False)<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"saving-data-to-excel\">L\u01b0u d\u1eef li\u1ec7u v\u00e0o Excel<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code data-no-translation=\"\">df.to_excel('books.xlsx', index=False)<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"sample-table-of-scraped-data\">B\u1ea3ng m\u1eabu d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c c\u1ea1o<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Ti\u00eau \u0111\u1ec1<\/th><th>Gi\u00e1<\/th><th>C\u1ed5 ph\u1ea7n<\/th><\/tr><\/thead><tbody><tr><td>Thi\u1ebft k\u1ebf v\u0129 \u0111\u1ea1i<\/td><td>\u00a313.76<\/td><td>Trong kho<\/td><\/tr><tr><td>B\u1eaft tr\u1ebb \u0111\u1ed3ng xanh<\/td><td>\u00a35.95<\/td><td>Trong kho<\/td><\/tr><tr><td>Th\u1ebf gi\u1edbi m\u1edbi d\u0169ng c\u1ea3m<\/td><td>\u00a339.74<\/td><td>Trong kho<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"7-conclusion\">7. K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e9t web b\u1eb1ng Python v\u00e0 BeautifulSoup l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt m\u1ea1nh m\u1ebd \u0111\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c trang web. B\u1eb1ng c\u00e1ch l\u00e0m theo h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 th\u1ec3 qu\u00e9t nhi\u1ec1u trang, x\u1eed l\u00fd n\u1ed9i dung \u0111\u1ed9ng v\u00e0 s\u1eed d\u1ee5ng proxy \u0111\u1ec3 tr\u00e1nh b\u1ecb c\u1ea5m IP. H\u00e3y nh\u1edb lu\u00f4n ki\u1ec3m tra c\u00e1c \u0111i\u1ec1u kho\u1ea3n d\u1ecbch v\u1ee5 c\u1ee7a trang web tr\u01b0\u1edbc khi thu th\u1eadp v\u00e0 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch c\u00f3 tr\u00e1ch nhi\u1ec7m.<\/p>","protected":false},"excerpt":{"rendered":"<p>Web scraping is an essential technique for extracting information from websites. If you\u2019re looking to learn how to scrape data with Python and BeautifulSoup, this guide will walk you through the process step-by-step. By the end of this article, you\u2019ll know how to scrape multiple pages, handle dynamic content, and use proxy servers to avoid [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":923137,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-923136","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/posts\/923136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/comments?post=923136"}],"version-history":[{"count":1,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/posts\/923136\/revisions"}],"predecessor-version":[{"id":926430,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/posts\/923136\/revisions\/926430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media\/923137"}],"wp:attachment":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media?parent=923136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/categories?post=923136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/tags?post=923136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}