{"id":470970,"date":"2024-07-21T03:55:35","date_gmt":"2024-07-21T03:55:35","guid":{"rendered":"https:\/\/proxycompass.com\/?p=470970"},"modified":"2024-07-23T16:19:42","modified_gmt":"2024-07-23T16:19:42","slug":"from-python-to-java-what-is-the-best-language-to-web-scrape","status":"publish","type":"post","link":"https:\/\/proxycompass.com\/vi\/from-python-to-java-what-is-the-best-language-to-web-scrape\/","title":{"rendered":"T\u1eeb Python \u0111\u1ebfn Java: Ng\u00f4n ng\u1eef t\u1ed1t nh\u1ea5t \u0111\u1ec3 qu\u00e9t web l\u00e0 g\u00ec?"},"content":{"rendered":"

B\u1ea1n kh\u00f4ng ch\u1eafc ch\u1eafn n\u00ean ch\u1ecdn ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh n\u00e0o? V\u00e2ng, c\u00f3 m\u1ed9t th\u1eddi gian, t\u00f4i c\u0169ng v\u1eady!<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n gi\u1ed1ng t\u00f4i, t\u00ecnh tr\u1ea1ng t\u00ea li\u1ec7t trong ph\u00e2n t\u00edch c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t n\u1ed7i \u0111au th\u1ef1c s\u1ef1\u2026 Ch\u00fang t\u00f4i \u0111\u00e3 chu\u1ea9n b\u1ecb m\u1ed9t danh s\u00e1ch v\u1edbi nh\u1eefng l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 ng\u1eebng l\u00e3ng ph\u00ed th\u1eddi gian v\u00e0 b\u1eaft \u0111\u1ea7u h\u00e0nh \u0111\u1ed9ng. Ch\u00fang t\u00f4i kh\u00f4ng ch\u1ec9 ti\u1ebft l\u1ed9 ng\u00f4n ng\u1eef t\u1ed1t nh\u1ea5t \u0111\u1ec3 qu\u00e9t web m\u00e0 c\u00f2n so s\u00e1nh \u0111i\u1ec3m m\u1ea1nh, \u0111i\u1ec3m y\u1ebfu v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee7a ch\u00fang, gi\u00fap b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t.<\/p>\n\n\n\n

Ch\u00fang t\u00f4i s\u1ebd kh\u00f4ng l\u00e3ng ph\u00ed th\u1eddi gian c\u1ee7a b\u1ea1n v\u00ec ch\u00fang t\u00f4i \u0111\u00e3 t\u00f3m t\u1eaft m\u1ecdi th\u1ee9 cho b\u1ea1n. <\/p>\n\n\n\n

c\u00e1i g\u00ec l\u00e0 <\/strong>Ng\u00f4n ng\u1eef t\u1ed1t nh\u1ea5t \u0111\u1ec3 qu\u00e9t web<\/strong>?<\/strong><\/h2>\n\n\n\n

Python l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh t\u1ed1t nh\u1ea5t \u0111\u1ec3 qu\u00e9t web. N\u00f3 d\u1ec5 s\u1eed d\u1ee5ng, c\u00f3 c\u00e1c th\u01b0 vi\u1ec7n phong ph\u00fa nh\u01b0 BeautifulSoup v\u00e0 Scrapy, c\u00e1c c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p \u0111\u1ec3 qu\u00e9t c\u00e1c trang web \u0111\u1ed9ng v\u00e0 t\u0129nh c\u0169ng nh\u01b0 c\u00e1c m\u00e3 \u0111\u01a1n gi\u1ea3n.<\/p>\n\n\n\n

T\u1ed5ng quan<\/strong><\/h2>\n\n\n\n
Ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh<\/strong><\/td>S\u1ee9c m\u1ea1nh ch\u1ee7 ch\u1ed1t<\/strong><\/td>\u0110i\u1ec3m y\u1ebfu ch\u00ednh<\/strong><\/td>Th\u01b0 vi\u1ec7n h\u00e0ng \u0111\u1ea7u<\/strong><\/td>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1t nh\u1ea5t<\/strong><\/td>\u0110\u01b0\u1eddng cong h\u1ecdc t\u1eadp<\/strong><\/td><\/tr>
Python<\/td>H\u1ec7 sinh th\u00e1i phong ph\u00fa g\u1ed3m c\u00e1c th\u01b0 vi\u1ec7n Scraping chuy\u00ean d\u1ee5ng<\/td>T\u1ed1c \u0111\u1ed9 th\u1ef1c hi\u1ec7n ch\u1eadm h\u01a1n cho c\u00e1c d\u1ef1 \u00e1n quy m\u00f4 l\u1edbn<\/td>S\u00fap \u0111\u1eb9p, v\u1ee5n<\/td>Trang web t\u0129nh, t\u00edch h\u1ee3p d\u1eef li\u1ec7u v\u1edbi NumPy\/Pandas<\/td>D\u1ec5 d\u00e0ng cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/td><\/tr>
JavaScript\/Node.js<\/td>X\u1eed l\u00fd tuy\u1ec7t v\u1eddi n\u1ed9i dung \u0111\u1ed9ng, \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng JavaScript<\/td>R\u00f2 r\u1ec9 b\u1ed9 nh\u1edb trong c\u00e1c t\u00e1c v\u1ee5 thu th\u1eadp d\u1eef li\u1ec7u ch\u1ea1y d\u00e0i<\/td>Ng\u01b0\u1eddi m\u00faa r\u1ed1i, Cheerio<\/td>\u1ee8ng d\u1ee5ng m\u1ed9t trang, \u1ee9ng d\u1ee5ng web hi\u1ec7n \u0111\u1ea1i<\/td>V\u1eeba ph\u1ea3i<\/td><\/tr>
h\u1ed3ng ng\u1ecdc<\/td>Ph\u00e2n t\u00edch c\u00fa ph\u00e1p HTML m\u1ea1nh m\u1ebd v\u1edbi \u0111\u00e1 qu\u00fd Nokogiri<\/td>\u0110\u1ed3ng th\u1eddi h\u1ea1n ch\u1ebf cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng quy m\u00f4 l\u1edbn<\/td>Nokogiri, C\u01a1 gi\u1edbi h\u00f3a<\/td>HTML c\u00f3 c\u1ea5u tr\u00fac t\u1ed1t, c\u00e1c trang web c\u00f3 x\u00e1c th\u1ef1c c\u01a1 b\u1ea3n<\/td>D\u1ec5 d\u00e0ng cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/td><\/tr>
\u0110i<\/td>Qu\u00e9t \u0111\u1ed3ng th\u1eddi hi\u1ec7u su\u1ea5t cao v\u1edbi goroutines<\/td>H\u1ec7 sinh th\u00e1i k\u00e9m tr\u01b0\u1edfng th\u00e0nh h\u01a1n so v\u1edbi Python\/JavaScript<\/td>Colly, Goquery<\/td>Nhi\u1ec7m v\u1ee5 c\u1ea1o song song, quy m\u00f4 l\u1edbn<\/td>Trung b\u00ecnh \u0111\u1ebfn n\u00e2ng cao<\/td><\/tr>
Java<\/td>X\u1eed l\u00fd m\u1ea1nh m\u1ebd HTML kh\u00f4ng \u0111\u00fang \u0111\u1ecbnh d\u1ea1ng v\u1edbi JSoup<\/td>C\u00fa ph\u00e1p d\u00e0i d\u00f2ng, th\u1eddi gian ph\u00e1t tri\u1ec3n d\u00e0i h\u01a1n<\/td>JSoup, HtmlUnit<\/td>C\u00e1c d\u1ef1 \u00e1n c\u1ea1o ph\u1ee9c t\u1ea1p, c\u1ea5p doanh nghi\u1ec7p<\/td>D\u1ed1c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Top 5 <\/strong>Ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u1ec3 qu\u00e9t web<\/strong><\/h2>\n\n\n\n

Python th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 ng\u00f4n ng\u1eef \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn cho h\u1ea7u h\u1ebft t\u1ea5t c\u1ea3 c\u00e1c quy tr\u00ecnh li\u00ean quan \u0111\u1ebfn vi\u1ec7c qu\u00e9t web. Tuy nhi\u00ean, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p nh\u01b0 \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao ho\u1eb7c d\u1ef1 \u00e1n nhanh, s\u1eed d\u1ee5ng n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3i l\u00e0 \u00fd t\u01b0\u1edfng t\u1ed1t nh\u1ea5t. Ki\u1ec3m tra xem ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh n\u00e0o kh\u00e1c c\u00f3 th\u1ec3 thay th\u1ebf t\u1ed1t.<\/p>\n\n\n\n

1. Tr\u0103n<\/strong><\/h3>\n\n\n\n

N\u1ebfu b\u1ea1n h\u1ecfi b\u1ea5t k\u1ef3 ng\u01b0\u1eddi thu th\u1eadp d\u1eef li\u1ec7u n\u00e0o v\u1ec1 ng\u00f4n ng\u1eef s\u1eed d\u1ee5ng \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a h\u1ecd, r\u1ea5t c\u00f3 th\u1ec3 h\u1ea7u h\u1ebft h\u1ecd s\u1ebd n\u00f3i Python. H\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi d\u1ecdn d\u1eb9p \u0111\u1ec1u th\u00edch Python v\u00ec n\u00f3 d\u1ec5 l\u00e0m vi\u1ec7c, n\u00f3 c\u00f3 c\u00e1c c\u00f4ng c\u1ee5 qu\u00e9t web tuy\u1ec7t v\u1eddi v\u00e0 h\u1ec7 sinh th\u00e1i x\u1eed l\u00fd d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3. N\u00f3 tuy\u1ec7t v\u1eddi cho c\u1ea3 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u00e0 ng\u01b0\u1eddi d\u00f9ng n\u00e2ng cao.<\/p>\n\n\n\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh:<\/strong><\/p>\n\n\n\n

    \n
  • D\u1ec5 d\u00e0ng s\u1eed d\u1ee5ng<\/li>\n\n\n\n
  • H\u1ec7 sinh th\u00e1i phong ph\u00fa g\u1ed3m c\u00e1c th\u01b0 vi\u1ec7n v\u00e0 c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng<\/li>\n\n\n\n
  • Kh\u1ea3 n\u0103ng \u0111\u1ecdc: C\u00fa ph\u00e1p r\u00f5 r\u00e0ng, th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/li>\n\n\n\n
  • H\u1ed7 tr\u1ee3 c\u1ed9ng \u0111\u1ed3ng m\u1ea1nh m\u1ebd v\u00e0 t\u00e0i li\u1ec7u to\u00e0n di\u1ec7n<\/li>\n\n\n\n
  • Hi\u1ec7u su\u1ea5t t\u1ed1t cho h\u1ea7u h\u1ebft c\u00e1c d\u1ef1 \u00e1n c\u1ea1o<\/li>\n\n\n\n
  • Qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb hi\u1ec7u qu\u1ea3<\/li>\n\n\n\n
  • H\u1ecdc nhanh v\u00ec h\u1ea7u h\u1ebft n\u1ed9i dung gi\u00e1o d\u1ee5c \u0111\u1ec1u b\u1eb1ng Python<\/li>\n<\/ul>\n\n\n\n

    \u0110i\u1ec3m m\u1ea1nh nh\u1ea5t:<\/strong> H\u1ec7 sinh th\u00e1i tuy\u1ec7t v\u1eddi c\u1ee7a n\u00f3 v\u1edbi v\u00f4 s\u1ed1 c\u00f4ng c\u1ee5 v\u00e0 th\u01b0 vi\u1ec7n gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c t\u00e1c v\u1ee5 qu\u00e9t web. <\/p>\n\n\n\n

    \u0110i\u1ec3m y\u1ebfu l\u1edbn nh\u1ea5t:<\/strong> M\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng cho r\u1eb1ng n\u00f3 th\u1ef1c thi qu\u00e1 ch\u1eadm so v\u1edbi c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c, nh\u01b0 Node.js <\/p>\n\n\n\n

    Th\u01b0 vi\u1ec7n c\u00f3 s\u1eb5n:<\/strong><\/p>\n\n\n\n

      \n
    • BeautifulSoup<\/li>\n\n\n\n
    • Scrapy<\/li>\n\n\n\n
    • Requests<\/li>\n\n\n\n
    • Selenium<\/li>\n\n\n\n
    • Nh\u00e0 vi\u1ebft k\u1ecbch<\/li>\n\n\n\n
    • lxml<\/li>\n\n\n\n
    • Urllib3<\/li>\n\n\n\n
    • C\u01a1 Kh\u00edS\u00fap<\/li>\n<\/ul>\n\n\n\n

      Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Python \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

        \n
      1. B\u1ea1n c\u1ea7n m\u1ed9t ng\u00f4n ng\u1eef \u0111\u01a1n gi\u1ea3n m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm ra m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/li>\n\n\n\n
      2. C\u00e1c trang web c\u00f3 n\u1ed9i dung ch\u1ee7 y\u1ebfu l\u00e0 t\u0129nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch c\u00fa ph\u00e1p b\u1eb1ng BeautifulSoup.<\/li>\n\n\n\n
      3. T\u00ecm ki\u1ebfm s\u1ef1 linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t \u0111\u1ec3 tinh ch\u1ec9nh logic c\u1ea1o v\u00e0 x\u1eed l\u00fd c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00f3 kh\u0103n.<\/li>\n<\/ol>\n\n\n\n

        Khi n\u00e0o n\u00ean tr\u00e1nh Python \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

          \n
        1. C\u00e1c trang web ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o JavaScript \u0111\u1ec3 hi\u1ec3n th\u1ecb n\u1ed9i dung \u0111\u1ed9ng, vi\u1ec7c lo\u1ea1i b\u1ecf n\u1ed9i dung n\u00e0y ph\u1ee9c t\u1ea1p h\u01a1n.<\/li>\n\n\n\n
        2. Khi b\u1ea1n c\u1ea7n hi\u1ec7u su\u1ea5t v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ef1c cao.\u00a0<\/li>\n\n\n\n
        3. Nh\u00f3m ph\u00e1t tri\u1ec3n thi\u1ebfu chuy\u00ean m\u00f4n v\u1ec1 Python v\u00e0 d\u1ef1 \u00e1n r\u1ea5t nh\u1ea1y c\u1ea3m v\u1ec1 th\u1eddi gian.<\/li>\n<\/ol>\n\n\n\n

          2. JavaScript\/Node.js<\/strong><\/h3>\n\n\n\n

          Node.js \u0111\u1ee9ng th\u1ee9 hai sau Python khi n\u00f3i \u0111\u1ebfn vi\u1ec7c ch\u1ecdn ng\u00f4n ng\u1eef \u0111\u1ec3 qu\u00e9t web. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng th\u00edch n\u00f3 v\u00ec n\u00f3 c\u00f3 v\u1ebb nh\u1eb9 h\u01a1n v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng h\u01a1n b\u1ea5t c\u1ee9 khi n\u00e0o h\u1ecd g\u1eb7p v\u1ea5n \u0111\u1ec1. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 quen thu\u1ed9c v\u1edbi JavaScript c\u00f3 th\u1ec3 th\u1ea5y vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 d\u1ec5 d\u00e0ng h\u01a1n thay v\u00ec h\u1ecdc Python. V\u00ec v\u1eady, cu\u1ed1i c\u00f9ng, \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 \u01b0u ti\u00ean v\u00e0 b\u1ea1n s\u1eb5n s\u00e0ng h\u1ecdc c\u00e1i n\u00e0o.<\/p>\n\n\n\n

          C\u00e1c t\u00ednh n\u0103ng ch\u00ednh:<\/strong> <\/p>\n\n\n\n

            \n
          • C\u00e1c th\u01b0 vi\u1ec7n tr\u00edch xu\u1ea5t th\u00f4ng tin d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u trong c\u00e1c trang web t\u1ea3i \u0111\u1ed9ng.<\/li>\n\n\n\n
          • L\u00e0m quen v\u1edbi c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n web \u0111\u00e3 th\u00e0nh th\u1ea1o JavaScript.<\/li>\n\n\n\n
          • Tuy\u1ec7t v\u1eddi \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c nhi\u1ec7m v\u1ee5 c\u1ea1o \u0111\u01a1n gi\u1ea3n.<\/li>\n\n\n\n
          • M\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh kh\u00f4ng \u0111\u1ed3ng b\u1ed9.<\/li>\n\n\n\n
          • C\u00f3 r\u1ea5t nhi\u1ec1u h\u01b0\u1edbng d\u1eabn \u0111\u1ec3 h\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng n\u00f3.<\/li>\n\n\n\n
          • Hi\u1ec7u su\u1ea5t t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi th\u1eddi gian ch\u1ea1y Node.js.<\/li>\n<\/ul>\n\n\n\n

            \u0110i\u1ec3m m\u1ea1nh nh\u1ea5t: <\/strong>X\u1eed l\u00fd tuy\u1ec7t v\u1eddi n\u1ed9i dung \u0111\u1ed9ng v\u00e0 c\u00e1c trang web \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng JavaScript th\u00f4ng qua c\u00e1c th\u01b0 vi\u1ec7n nh\u01b0 Puppeteer v\u00e0 Playwright, cho ph\u00e9p t\u1ef1 \u0111\u1ed9ng h\u00f3a tr\u00ecnh duy\u1ec7t v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c trang web nh\u01b0 m\u1ed9t ng\u01b0\u1eddi d\u00f9ng th\u1ef1c s\u1ef1.<\/p>\n\n\n\n

            \u0110i\u1ec3m y\u1ebfu l\u1edbn nh\u1ea5t: <\/strong>C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb trong c\u00e1c t\u00e1c v\u1ee5 thu th\u1eadp d\u1eef li\u1ec7u ch\u1ea1y d\u00e0i, c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111\u1ebfn r\u00f2 r\u1ec9 b\u1ed9 nh\u1edb v\u00e0 gi\u1ea3m hi\u1ec7u su\u1ea5t theo th\u1eddi gian.<\/p>\n\n\n\n

            Th\u01b0 vi\u1ec7n c\u00f3 s\u1eb5n:<\/strong><\/p>\n\n\n\n

              \n
            • Ng\u01b0\u1eddi m\u00faa r\u1ed1i<\/li>\n\n\n\n
            • Nh\u00e0 vi\u1ebft k\u1ecbch<\/li>\n\n\n\n
            • c\u1ed5 v\u0169<\/li>\n\n\n\n
            • Axios<\/li>\n\n\n\n
            • Jsdom<\/li>\n\n\n\n
            • C\u01a1n \u00e1c m\u1ed9ng<\/li>\n\n\n\n
            • L\u1eddi y\u00eau c\u1ea7u<\/li>\n\n\n\n
            • \u0110\u00e3 c\u1ea1o<\/li>\n<\/ul>\n\n\n\n

              Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng JavaScript \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

                \n
              1. Qu\u00e9t c\u00e1c trang web \u0111\u1ed9ng<\/li>\n\n\n\n
              2. X\u1eed l\u00fd c\u00e1c \u1ee9ng d\u1ee5ng m\u1ed9t trang<\/li>\n\n\n\n
              3. T\u00edch h\u1ee3p d\u1eef li\u1ec7u c\u00f3p nh\u1eb7t m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng web d\u1ef1a tr\u00ean JavaScript.<\/li>\n<\/ol>\n\n\n\n

                Khi n\u00e0o c\u1ea7n tr\u00e1nh JavaScript \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

                  \n
                1. Qu\u00e9t c\u00e1c trang web t\u0129nh<\/li>\n\n\n\n
                2. C\u00e1c nh\u00f3m c\u00f3 kinh nghi\u1ec7m h\u1ea1n ch\u1ebf v\u1ec1 l\u1eadp tr\u00ecnh kh\u00f4ng \u0111\u1ed3ng b\u1ed9<\/li>\n\n\n\n
                3. Th\u1ef1c hi\u1ec7n x\u1eed l\u00fd d\u1eef li\u1ec7u s\u1eed d\u1ee5ng nhi\u1ec1u CPU, c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 h\u01a1n trong c\u00e1c ng\u00f4n ng\u1eef nh\u01b0 C++ ho\u1eb7c Java.<\/li>\n<\/ol>\n\n\n\n

                  3. H\u1ed3ng ng\u1ecdc<\/strong><\/h3>\n\n\n\n

                  Ruby l\u00e0 m\u1ed9t t\u00f9y ch\u1ecdn m\u1ea1nh m\u1ebd \u0111\u1ec3 qu\u00e9t web do c\u00f3 r\u1ea5t nhi\u1ec1u th\u01b0 vi\u1ec7n v\u00e0 gem ho\u00e0n h\u1ea3o cho c\u1ea3 c\u00e1c t\u00e1c v\u1ee5 \u0111\u01a1n gi\u1ea3n v\u00e0 ph\u1ee9c t\u1ea1p. N\u00f3 \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n Node.js v\u00e0 Python, khi\u1ebfn vi\u1ec7c t\u00ecm h\u01b0\u1edbng d\u1eabn v\u00e0 tr\u1ea3i nghi\u1ec7m c\u1ee7a ng\u01b0\u1eddi d\u00f9ng kh\u00e1c tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n.<\/p>\n\n\n\n

                  C\u00e1c t\u00ednh n\u0103ng ch\u00ednh:<\/strong><\/p>\n\n\n\n

                    \n
                  • C\u00fa ph\u00e1p ng\u1eafn g\u1ecdn v\u00e0 d\u1ec5 \u0111\u1ecdc\u00a0<\/li>\n\n\n\n
                  • Kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch c\u00fa ph\u00e1p m\u1ea1nh m\u1ebd v\u1edbi c\u00e1c th\u01b0 vi\u1ec7n nh\u01b0 Nokogiri \u0111\u1ec3 x\u1eed l\u00fd HTML v\u00e0 XML<\/li>\n\n\n\n
                  • C\u00e1c th\u01b0 vi\u1ec7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 qu\u00e9t web, nh\u01b0 Nogokori v\u00e0 Mechanize<\/li>\n\n\n\n
                  • Th\u01b0 vi\u1ec7n Nogokiri r\u1ea5t d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 kh\u00e1 \u0111\u01a1n gi\u1ea3n, ho\u00e0n h\u1ea3o cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/li>\n\n\n\n
                  • C\u01a1 gi\u1edbi h\u00f3a bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft \u0111\u1ec3 qu\u00e9t web.<\/li>\n\n\n\n
                  • C\u00fa ph\u00e1p r\u00f5 r\u00e0ng v\u00e0 bi\u1ec3u c\u1ea3m gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng \u0111\u1ecdc v\u00e0 b\u1ea3o tr\u00ec<\/li>\n\n\n\n
                  • T\u00ednh s\u1eb5n c\u00f3 c\u1ee7a c\u00e1c khung qu\u00e9t web nh\u01b0 Kimurai \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c ph\u00e1t tri\u1ec3n<\/li>\n<\/ul>\n\n\n\n

                    \u0110i\u1ec3m m\u1ea1nh nh\u1ea5t:<\/strong> \u0110\u00e1 qu\u00fd Nokogiri, cung c\u1ea5p m\u1ed9t c\u00e1ch m\u1ea1nh m\u1ebd v\u00e0 linh ho\u1ea1t \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c t\u00e0i li\u1ec7u HTML v\u00e0 XML, gi\u00fap d\u1ec5 d\u00e0ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u b\u1eb1ng m\u00e3 r\u00f5 r\u00e0ng v\u00e0 ng\u1eafn g\u1ecdn.<\/p>\n\n\n\n

                    \u0110i\u1ec3m y\u1ebfu l\u1edbn nh\u1ea5t:<\/strong> H\u1ed7 tr\u1ee3 \u0111\u1ed3ng th\u1eddi h\u1ea1n ch\u1ebf so v\u1edbi c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng thu th\u1eadp d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn.<\/p>\n\n\n\n

                    Th\u01b0 vi\u1ec7n c\u00f3 s\u1eb5n:<\/strong><\/p>\n\n\n\n

                      \n
                    • Nokogiri<\/li>\n\n\n\n
                    • C\u01a1 gi\u1edbi h\u00f3a<\/li>\n\n\n\n
                    • Watir<\/li>\n\n\n\n
                    • HTTParty<\/li>\n\n\n\n
                    • kimurai<\/li>\n\n\n\n
                    • t\u1eed cung<\/li>\n\n\n\n
                    • h\u1ea3i qu\u1ef3<\/li>\n\n\n\n
                    • Ng\u01b0\u1eddi Nh\u1ec7n<\/li>\n<\/ul>\n\n\n\n

                      Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Ruby \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

                        \n
                      1. Qu\u00e9t c\u00e1c trang t\u0129nh<\/li>\n\n\n\n
                      2. X\u1eed l\u00fd c\u00e1c \u0111o\u1ea1n HTML b\u1ecb h\u1ecfng<\/li>\n\n\n\n
                      3. Nhu c\u1ea7u qu\u00e9t web \u0111\u01a1n gi\u1ea3n<\/li>\n<\/ol>\n\n\n\n

                        Khi n\u00e0o n\u00ean tr\u00e1nh Ruby \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

                          \n
                        1. C\u00e1c trang web \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng JavaScript<\/li>\n\n\n\n
                        2. C\u1ea1o \u0111\u1ed3ng th\u1eddi v\u00e0 song song<\/li>\n\n\n\n
                        3. C\u00e1c d\u1ef1 \u00e1n quy m\u00f4 l\u1edbn ho\u1eb7c quan tr\u1ecdng v\u1ec1 hi\u1ec7u su\u1ea5t.<\/li>\n<\/ol>\n\n\n\n

                          4. \u0110i<\/strong><\/h3>\n\n\n\n

                          \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 ng\u01b0\u1eddi qu\u00e9t, Go \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef qu\u00e9t web th\u00fa v\u1ecb v\u00ec n\u00f3 c\u00f3 hi\u1ec7u su\u1ea5t cao v\u00e0 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Google. N\u00f3 ho\u00e0n h\u1ea3o cho c\u00e1c d\u1ef1 \u00e1n c\u1ea1o quy m\u00f4 l\u1edbn \u0111\u00f2i h\u1ecfi t\u1ed1c \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd song song.<\/p>\n\n\n\n

                          C\u00e1c t\u00ednh n\u0103ng ch\u00ednh:<\/strong><\/p>\n\n\n\n

                            \n
                          • Th\u1ef1c hi\u1ec7n nhanh ch\u00f3ng.<\/li>\n\n\n\n
                          • C\u00e1c t\u00ednh n\u0103ng \u0111\u1ed3ng th\u1eddi t\u00edch h\u1ee3p s\u1eb5n cho c\u00e1c t\u00e1c v\u1ee5 qu\u00e9t song song.<\/li>\n\n\n\n
                          • Kh\u1ea3 n\u0103ng bi\u00ean d\u1ecbch th\u00e0nh m\u1ed9t nh\u1ecb ph\u00e2n duy nh\u1ea5t \u0111\u1ec3 tri\u1ec3n khai d\u1ec5 d\u00e0ng.<\/li>\n\n\n\n
                          • Qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb hi\u1ec7u qu\u1ea3.<\/li>\n\n\n\n
                          • Th\u00edch h\u1ee3p \u0111\u1ec3 th\u1ef1c hi\u1ec7n nhi\u1ec1u y\u00eau c\u1ea7u c\u1ea1o.<\/li>\n\n\n\n
                          • H\u1ec7 sinh th\u00e1i \u0111ang ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c th\u01b0 vi\u1ec7n qu\u00e9t web nh\u01b0 Colly v\u00e0 Goquery.<\/li>\n\n\n\n
                          • C\u00e1c t\u00ednh n\u0103ng nh\u01b0 thu gom r\u00e1c khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao.<\/li>\n<\/ul>\n\n\n\n

                            \u0110i\u1ec3m m\u1ea1nh nh\u1ea5t: <\/strong>Kh\u1ea3 n\u0103ng thu th\u1eadp d\u1eef li\u1ec7u \u0111\u1ed3ng th\u1eddi hi\u1ec7u su\u1ea5t cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi th\u01b0 vi\u1ec7n Colly, h\u1ed7 tr\u1ee3 x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 c\u00e1c t\u00e1c v\u1ee5 thu th\u1eadp d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn th\u00f4ng qua c\u00e1c goroutine v\u00e0 k\u00eanh.<\/p>\n\n\n\n

                            \u0110i\u1ec3m y\u1ebfu l\u1edbn nh\u1ea5t:<\/strong> H\u1ec7 sinh th\u00e1i qu\u00e9t web k\u00e9m ho\u00e0n thi\u1ec7n h\u01a1n so v\u1edbi Python ho\u1eb7c JavaScript, v\u1edbi \u00edt th\u01b0 vi\u1ec7n v\u00e0 c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng h\u01a1n.<\/p>\n\n\n\n

                            Th\u01b0 vi\u1ec7n c\u00f3 s\u1eb5n:<\/strong><\/p>\n\n\n\n

                              \n
                            • Colly<\/li>\n\n\n\n
                            • truy v\u1ea5n<\/li>\n\n\n\n
                            • Canh<\/li>\n\n\n\n
                            • g\u1eady<\/li>\n\n\n\n
                            • Chromedp<\/li>\n\n\n\n
                            • Ch\u1ed3n h\u00f4i<\/li>\n\n\n\n
                            • Geziyor<\/li>\n\n\n\n
                            • Gocrawl<\/li>\n<\/ul>\n\n\n\n

                              Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Go \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

                                \n
                              1. Qu\u00e9t nhi\u1ec1u trang web c\u00f9ng m\u1ed9t l\u00fac.<\/li>\n\n\n\n
                              2. \u1ee8ng d\u1ee5ng kh\u00e1ch API \u1ed5n \u0111\u1ecbnh v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec cho c\u00e1c v\u1ea5n \u0111\u1ec1 HTTP.<\/li>\n\n\n\n
                              3. X\u00e2y d\u1ef1ng c\u00e1c bot qu\u00e9t web.<\/li>\n<\/ol>\n\n\n\n

                                Khi n\u00e0o n\u00ean tr\u00e1nh truy c\u1eadp web:<\/strong><\/p>\n\n\n\n

                                  \n
                                1. T\u1ea1o m\u1eabu v\u00e0 th\u1eed nghi\u1ec7m nhanh<\/li>\n\n\n\n
                                2. Qu\u00e9t c\u00e1c trang web c\u00f3 nhu c\u1ea7u tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p<\/li>\n\n\n\n
                                3. C\u00e1c d\u1ef1 \u00e1n ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o th\u01b0 vi\u1ec7n ph\u00e2n t\u00edch c\u00fa ph\u00e1p ho\u1eb7c x\u1eed l\u00fd d\u1eef li\u1ec7u th\u00edch h\u1ee3p<\/li>\n<\/ol>\n\n\n\n

                                  5. Java<\/strong><\/h3>\n\n\n\n

                                  H\u1ec7 sinh th\u00e1i r\u1ed9ng l\u1edbn, t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 m\u1ea1nh m\u1ebd c\u1ee7a Java khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p cho vi\u1ec7c qu\u00e9t web. N\u00f3 d\u1ef1a tr\u00ean nhi\u1ec1u th\u01b0 vi\u1ec7n, nh\u01b0 JSoup v\u00e0 HtmlUnit, cung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 ph\u00e2n t\u00edch c\u00fa ph\u00e1p HTML v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c tr\u00ecnh duy\u1ec7t, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c d\u1ef1 \u00e1n qu\u00e9t quy m\u00f4 l\u1edbn, ph\u1ee9c t\u1ea1p.<\/p>\n\n\n\n

                                  C\u00e1c t\u00ednh n\u0103ng ch\u00ednh:<\/strong><\/p>\n\n\n\n

                                    \n
                                  • Ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3 r\u1ea5t d\u1ec5 d\u00e0ng \u0111\u1ec3 m\u1edf r\u1ed9ng.<\/li>\n\n\n\n
                                  • C\u00f3 s\u1eb5n c\u00e1c c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a tr\u00ecnh duy\u1ec7t web.<\/li>\n\n\n\n
                                  • Nguy\u00ean t\u1eafc g\u00f5 m\u1ea1nh v\u00e0 l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n\n\n\n
                                  • L\u1eadp tr\u00ecnh song song, l\u00fd t\u01b0\u1edfng cho c\u00e1c t\u00e1c v\u1ee5 qu\u00e9t web quy m\u00f4 l\u1edbn.<\/li>\n\n\n\n
                                  • Th\u01b0 vi\u1ec7n c\u00f3 kh\u1ea3 n\u0103ng c\u1ea1o n\u00e2ng cao.\u00a0<\/li>\n\n\n\n
                                  • \u0110a lu\u1ed3ng v\u00e0 \u0111\u1ed3ng th\u1eddi n\u00e2ng cao.<\/li>\n\n\n\n
                                  • Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111a n\u1ec1n t\u1ea3ng v\u00e0 c\u1ed9ng \u0111\u1ed3ng nh\u00e0 ph\u00e1t tri\u1ec3n l\u1edbn.<\/li>\n<\/ul>\n\n\n\n

                                    \u0110i\u1ec3m m\u1ea1nh nh\u1ea5t:<\/strong> C\u00e1c th\u01b0 vi\u1ec7n m\u1ea1nh m\u1ebd nh\u01b0 JSoup \u0111\u1ec3 x\u1eed l\u00fd HTML kh\u00f4ng \u0111\u00fang \u0111\u1ecbnh d\u1ea1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 HtmlUnit \u0111\u1ec3 cung c\u1ea5p ch\u1ee9c n\u0103ng tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 GUI, cho ph\u00e9p th\u1eed nghi\u1ec7m v\u00e0 t\u01b0\u01a1ng t\u00e1c to\u00e0n di\u1ec7n tr\u00ean trang web.<\/p>\n\n\n\n

                                    \u0110i\u1ec3m y\u1ebfu l\u1edbn nh\u1ea5t: <\/strong>Ng\u00f4n ng\u1eef t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p, v\u1edbi c\u00fa ph\u00e1p d\u00e0i d\u00f2ng v\u00e0 \u0111\u01b0\u1eddng cong h\u1ecdc t\u1eadp d\u1ed1c. C\u00f3 m\u1ed9t ch\u00fat th\u00e1ch th\u1ee9c khi ph\u00e1t tri\u1ec3n v\u00e0 duy tr\u00ec c\u00e1c t\u1eadp l\u1ec7nh so v\u1edbi c\u00e1c ng\u00f4n ng\u1eef ng\u1eafn g\u1ecdn h\u01a1n.<\/p>\n\n\n\n

                                    Th\u01b0 vi\u1ec7n c\u00f3 s\u1eb5n:<\/strong><\/p>\n\n\n\n

                                      \n
                                    • JSoup<\/li>\n\n\n\n
                                    • Html\u0110\u01a1n v\u1ecb<\/li>\n\n\n\n
                                    • Tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n web Selenium<\/li>\n\n\n\n
                                    • M\u00e1y kh\u00e1ch HTTP Apache<\/li>\n\n\n\n
                                    • \u0110i ch\u01a1i<\/li>\n\n\n\n
                                    • Tr\u00ecnh thu th\u1eadp th\u00f4ng tin4j<\/li>\n\n\n\n
                                    • WebMagic<\/li>\n\n\n\n
                                    • Heritrix<\/li>\n<\/ul>\n\n\n\n

                                      Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Java \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

                                        \n
                                      1. Qu\u00e9t d\u1eef li\u1ec7u t\u1eeb c\u00e1c t\u00e0i li\u1ec7u HTML v\u00e0 XML.<\/li>\n\n\n\n
                                      2. C\u00e1c t\u00e1c v\u1ee5 qu\u00e9t web \u0111\u01a1n gi\u1ea3n \u0111\u00f2i h\u1ecfi \u00edt t\u00e0i nguy\u00ean h\u01a1n.<\/li>\n\n\n\n
                                      3. Ho\u1eb7c c\u00f3 th\u1ec3 b\u1ea1n l\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n Java c\u00f3 r\u1ea5t nhi\u1ec1u kinh nghi\u1ec7m.<\/li>\n<\/ol>\n\n\n\n

                                        Khi n\u00e0o n\u00ean tr\u00e1nh s\u1eed d\u1ee5ng Java \u0111\u1ec3 qu\u00e9t web:<\/strong><\/p>\n\n\n\n

                                          \n
                                        1. C\u00e1c d\u1ef1 \u00e1n n\u01a1i t\u1ed1c \u0111\u1ed9 l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/li>\n\n\n\n
                                        2. T\u1ea1o m\u1eabu v\u00e0 th\u1eed nghi\u1ec7m nhanh.<\/li>\n\n\n\n
                                        3. Qu\u00e9t th\u1eddi gian th\u1ef1c quan tr\u1ecdng v\u1ec1 hi\u1ec7u su\u1ea5t.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

                                          Unsure which programming language to choose? Well, for a while, I was too! If you are like me, analysis paralysis can be a real pain… We have prepared a list with our top choices so you can stop wasting time and start taking action. Not only we\u2019ll reveal the best language to web scrape, but […]<\/p>\n","protected":false},"author":1,"featured_media":470973,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-470970","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/posts\/470970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/comments?post=470970"}],"version-history":[{"count":4,"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/posts\/470970\/revisions"}],"predecessor-version":[{"id":470977,"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/posts\/470970\/revisions\/470977"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/media\/470973"}],"wp:attachment":[{"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/media?parent=470970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/categories?post=470970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/proxycompass.com\/vi\/wp-json\/wp\/v2\/tags?post=470970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}