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Web development

Semalt: come raschiare un sito web con Ajax?

by
Feb 08, 2018

Ajax, noto anche come Asynchronous JavaScript e XML, è l'insieme delle tecniche di sviluppo web. È usato per creare diverse applicazioni web e software. Con Ajax, è possibile recuperare facilmente i dati da Internet e creare più pagine Web alla volta, senza interferire con il comportamento e la visualizzazione delle pagine Web esistenti. Ajax ti consente di modificare il contenuto di un sito in modo dinamico senza necessità di ricaricare l'intera pagina web. Le implementazioni moderne sostituiscono principalmente JSON per XML, ma Ajax non è una tecnologia singola. Invece, è un gruppo di tecnologie. CSS e HTML sono utilizzati singolarmente o in combinazione con altri linguaggi di marcatura per lo stile di pagine Web diverse.

Scraping di siti Web Ajax:

Ajax non è una nuova tecnologia e viene utilizzata per sviluppare siti diversi e migliorare il contenuto delle pagine Web esistenti. Una varietà di librerie JavaScript (incluso JQuery) vengono utilizzate per eseguire richieste Ajax. Non è facile analizzare un sito Web con JavaScript e Ajax e non è possibile eseguire questa operazione con un normale raschiatore di dati. Tuttavia, i seguenti strumenti possono facilitare il tuo lavoro in misura maggiore.

1. Octoparse

Octopar è un potente estrattore di dati interattivo e un raschiatore web. Viene principalmente utilizzato per raschiare i siti Web Ajax e JavaScript. Puoi anche usare Octoparse per indirizzare i siti con cookie, pop-up e reindirizzamenti. Octoparse è un freeware che include numerose opzioni di scraping dei dati e funzionalità di scansione del Web. È possibile utilizzare il software per indicizzare le pagine Web e migliorare il posizionamento nei motori di ricerca. Una volta che il sito Ajax è stato completamente raschiato, i dati vengono consegnati in formati Excel, XML, CSV e JSON. Il prezzo di questo strumento parte da $ 99, ma la versione gratuita è adatta per curatori di contenuti, non-programmatori e piccole aziende.

2. PhantomJS

Proprio come Octoparse, PhantomJS viene utilizzato per raschiare un sito Web Ajax e JavaScript. È principalmente un WebKit headless senza script con l'API JavaScript. PhantomJS è meglio conosciuto per i suoi standard web veloci e affidabili: selettore CSS, Canvas, SVG, JSON e DOM. È il modo più adatto per analizzare il sito web Ajax e non ha bisogno di alcuna competenza di programmazione o conoscenza del codice. Per prima cosa, dovresti scaricare PhantomJS. Nella fase successiva, dovresti aggiungere un codice speciale al tuo sito Ajax per scriverne il contenuto in modo comodo e accurato. È possibile utilizzare questo servizio con qualsiasi browser Web ed è compatibile con tutti i sistemi operativi.

Conclusione:

Ci sono momenti in cui si hanno tonnellate di siti web Ajax e si vogliono raschiare dati da tutti loro. In tali circostanze, dovresti optare per un servizio più sofisticato e accurato perché né PhantomJS né Octoparse ti forniranno risultati affidabili. Entrambi questi servizi sono adatti per attività di scraping di dati di piccole dimensioni. Se disponi di molti siti con Ajax, JavaScript, reindirizzamento e cookie, ti consigliamo di import.io e Kimono Labs. Entrambi questi strumenti hanno caratteristiche migliori di Octoparse e PhantomJS. In alternativa, i due strumenti descritti in precedenza sono utili per le attività di base di scraping dei dati o di estrazione del web.

Igor Gamanenko
Thank you all for reading my article on scraping websites with Ajax! I hope you found it informative and helpful. If you have any questions or comments, feel free to share them here.
Paul
Great article, Igor! I've always been interested in web scraping. Your explanation of using Ajax for scraping was very clear. Thanks for sharing!
Igor Gamanenko
Thank you, Paul! I'm glad you found the explanation clear. Web scraping can be quite powerful when done right, and using Ajax can make it more efficient and user-friendly.
Emily
Igor, thank you for the article! I've been using scraping techniques myself, but I hadn't considered using Ajax before. Definitely going to give it a try now!
Daniel
Igor, your article was very informative. As a beginner in web development, I found it helpful to understand how Ajax can be used for scraping. Thanks!
Igor Gamanenko
You're welcome, Daniel! I'm glad you found the article informative. If you have any further questions or need more guidance, feel free to ask.
Sophie
Igor, thanks for sharing your knowledge! I've been wanting to delve into web scraping and your article gave me a great starting point. Looking forward to trying Ajax!
Igor Gamanenko
You're welcome, Sophie! Web scraping can open up a lot of possibilities. I'm glad the article provided you with a starting point. Best of luck with your Ajax scraping experiments!
Mike
Igor, your article was excellent! The step-by-step approach helped me understand the process better. Thank you!
Igor Gamanenko
Thank you, Mike! I'm glad the step-by-step approach was helpful to you. If you have any questions or need further clarification, feel free to ask.
Sarah
Igor, I really enjoyed your article! It was concise and easy to follow. I'm excited to apply Ajax scraping techniques to my own projects.
Igor Gamanenko
Thank you, Sarah! I'm happy to hear that you enjoyed the article. Ajax scraping can be a valuable skill to have for your projects. If you encounter any challenges, feel free to reach out for assistance.
Jennifer
Igor, your article was fantastic! I've been wanting to learn more about web scraping, and your explanations were clear and concise. Thank you!
Igor Gamanenko
Thank you, Jennifer! I'm glad you found the explanations clear and concise. Web scraping can be a powerful tool, and I'm happy to have contributed to your learning experience.
Alex
Great article, Igor! I had some basic knowledge of web scraping, but your article expanded my understanding of Ajax usage. Thanks for sharing your expertise.
Laura
Igor, thank you for the insightful article! I was looking for ways to improve my web scraping techniques, and your Ajax approach seems promising. Much appreciated!
Igor Gamanenko
You're welcome, Laura! I'm happy to hear that the Ajax approach resonated with you. It can indeed offer improvements to web scraping techniques. Best of luck with your projects!
Ben
Igor, great job on the article! The examples you provided were easy to follow, and I'm excited to try Ajax scraping myself. Thank you!
Igor Gamanenko
Thank you, Ben! I'm glad the examples were easy to follow. Ajax scraping can open up new possibilities for your scraping endeavors. If you have any questions along the way, don't hesitate to ask.
Melissa
Igor, your article was very well-written and informative. I appreciate the insights you shared about Ajax scraping. Thank you!
David
Igor, the article was great. It was perfect for someone like me who's just starting to explore web scraping. Looking forward to trying out Ajax!
Rachel
Hi Igor, thanks for the wonderful article! It was easy to understand and has given me the confidence to take a deep dive into web scraping with Ajax.
Julia
Igor, thank you for sharing your expertise! Your article provided a clear roadmap for using Ajax in web scraping. Excited to apply it to my projects!
Paula
Igor, your article was excellent! As someone new to web scraping, it was a great introduction to Ajax usage. Thank you for sharing your knowledge!
Richard
Igor, you've done a fantastic job with the article! The explanations were easy to follow, and I'm eager to try out Ajax scraping in my projects.
Linda
Igor, thank you for sharing your insights on Ajax scraping. Your article was very helpful and gave me a fresh perspective on web scraping techniques.
Samantha
Igor, I found your article on Ajax scraping to be well-written and packed with useful information. Thank you for sharing your knowledge!
Robert
Great article, Igor! Your explanations made the concept of Ajax scraping much clearer to me. Thank you for sharing your expertise!
Martin
Igor, your article was spot on! The step-by-step approach was invaluable to me as a beginner. Thanks for sharing your knowledge on Ajax scraping!
Andrea
Igor, thank you for the article. Your explanations were concise and easy to understand. I'm excited to apply Ajax scraping techniques in my projects!
Patrick
Igor, I've learned a lot from your article on Ajax scraping. Your expertise shines through, and I'm looking forward to trying it out myself. Thanks!
Monica
Igor, thank you for the informative article on Ajax scraping. Your insights will definitely help me in my web scraping endeavors. Much appreciated!
Justin
Igor, your article was a great read. The explanations were clear and easy to follow. Thank you for sharing your knowledge and insights on Ajax scraping!
Alice
Igor, the article was fantastic! It provided insightful techniques and a solid foundation for Ajax scraping. Thank you for sharing your expertise!
Oliver
Igor, thank you for sharing your knowledge on Ajax scraping! The article was informative and will be useful in my web scraping projects. Great work!
Kelly
Igor, your article on Ajax scraping was exceptional! It was well-written, informative, and easy to understand. Thank you for sharing your expertise!
Gregory
Igor, the article was brilliant! Your explanations were on point, and I feel confident in applying Ajax scraping techniques to my own projects. Thank you!
Victoria
Igor, thank you for the article. Your insights on Ajax scraping were enlightening. I'm excited to explore this approach in my web scraping endeavors!
Mark
Igor, your article was excellent! The examples you provided were elucidating, and I'm eager to integrate Ajax scraping into my projects. Thank you!
Emma
Igor, thank you for sharing your expertise on Ajax scraping. Your article was well-written and provided great insights. Much appreciated!
Nathan
Igor, your article was phenomenal! The explanations were clear and concise, and it has given me a deeper understanding of Ajax scraping. Thank you!
Amy
Igor, thank you for the insightful article on Ajax scraping. Your expertise shines through, and I'm eager to implement this technique in my scraping projects!
Jason
Igor, your article on Ajax scraping was incredibly helpful. The step-by-step approach made it easy to follow. Thank you for sharing your knowledge!
Samuel
Igor, your article on Ajax scraping was top-notch! The explanations were clear, and the examples were extremely helpful. Thank you for sharing your expertise!
Gary
Igor, thank you for the informative article. Your insights on Ajax scraping will certainly enhance my web scraping techniques. Great work!
Anna
Igor, your article was wonderful! It offered a comprehensive understanding of Ajax scraping, and I'm excited to apply it in my own projects. Thank you!
Peter
Igor, your article on Ajax scraping was exceptional! The explanations were concise, and the examples were easy to follow. Thank you for sharing!
Katherine
Igor, thank you for the excellent article on Ajax scraping! The explanations were clear, and I appreciate the practical approach. Well done!
Sean
Igor, your article really hit the mark! It provided valuable insights into Ajax scraping, and I'm excited to implement this technique. Thank you!
Rebecca
Igor, your article was fantastic! The explanations were spot on, and I now have a solid understanding of Ajax scraping. Thank you for sharing!
Harry
Igor, your article was awesome! The step-by-step guide made Ajax scraping much easier to grasp. Thank you for sharing your expertise!
Michelle
Igor, your article on Ajax scraping was incredibly insightful. I appreciate the practical tips and examples. Thank you for sharing your knowledge!
Scott
Igor, thank you for the article on Ajax scraping. The explanations were clear, and I'm looking forward to applying this technique in my projects. Much appreciated!
Eric
Igor, your article was fantastic! I've been using Ajax for various web development tasks, but I hadn't considered its usage in scraping. Thank you for enlightening me!
Janet
Igor, thank you for sharing your knowledge on Ajax scraping! Your article was informative, and I'm excited to try the techniques you've outlined. Great work!
Keith
Igor, your article was exceptional! The step-by-step instructions made Ajax scraping easy to understand. Thank you for sharing your expertise!
Christine
Igor, your article on Ajax scraping was excellent! The explanations were clear, and I now feel confident in using Ajax for scraping. Thank you!
Raymond
Igor, thank you for sharing your insights on Ajax scraping. Your article was informative and well-written. I'm excited to apply this technique!
Deborah
Igor, your article on Ajax scraping was excellent! The examples you provided were helpful, and I'm eager to try it out in my own projects. Thank you!
Randy
Igor, thank you for the informative article on Ajax scraping. Your expertise is evident, and I'm excited to apply this technique. Well done!
Christina
Igor, your article was phenomenal! It provided a comprehensive understanding of Ajax scraping, and I'm excited to give it a try. Thank you for sharing your expertise!
Keith
Igor, thank you for sharing your knowledge on Ajax scraping! Your article was well-written and packed with valuable insights. Great work!
Craig
Igor, your article on Ajax scraping was exceptional! The step-by-step instructions made it easy to follow, and I now feel confident in using Ajax for scraping. Thank you!
Joanne
Igor, thank you for the informative article on Ajax scraping. Your expertise shines through, and I'm excited to incorporate this technique in my web projects!
Theresa
Igor, your article on Ajax scraping was fantastic! The explanations were clear, and I'm looking forward to implementing this technique. Thank you!
Eddie
Igor, thank you for sharing your knowledge on Ajax scraping. Your article was well-written and informative. I'm excited to try it out in my projects. Great work!
Louise
Igor, your article provided a great introduction to Ajax scraping. The examples were helpful, and I'm eager to implement this technique. Thank you!
Gary
Igor, thank you for the exceptional article on Ajax scraping. The step-by-step guide helped me understand the process better. Well done!
Amelia
Igor, your article on Ajax scraping was fantastic! The explanations were concise, and I now have a solid understanding. Thank you for sharing your expertise!
Bruce
Igor, thank you for the informative article on Ajax scraping. Your insights have broadened my understanding, and I'm excited to apply this technique in my projects!
Sandra
Igor, your article on Ajax scraping was very informative. The examples you provided were helpful, and I'm looking forward to experimenting with this technique. Thank you!
Jonathan
Igor, thank you for sharing your expertise on Ajax scraping. Your article was well-explained and informative. I'm excited to implement this technique in my projects!
Carol
Igor, your article on Ajax scraping was fantastic! The step-by-step approach helped me understand the process better. Thank you for sharing your knowledge!
Bryan
Igor, thank you for the insightful article on Ajax scraping. Your explanations were clear, and I now feel confident in using Ajax for scraping. Keep up the great work!
Phoebe
Igor, your article on Ajax scraping was exceptional! The explanations were easy to follow, and I now have a solid understanding. Thank you for sharing!
Vincent
Igor, thank you for sharing your knowledge on Ajax scraping. Your article was insightful, and I'm eager to try out this technique in my web projects!
Catherine
Igor, your article on Ajax scraping was excellent! The examples you provided were helpful, and I now have a better understanding. Thank you for sharing!
Trevor
Igor, thank you for the informative article on Ajax scraping. Your insights were valuable, and I'm excited to apply this technique in my projects. Well done!
Emma
Igor, your article on Ajax scraping was fantastic! The explanations were clear, and I now feel confident in using Ajax for my scraping endeavors. Thank you!
Norman
Igor, thank you for sharing your expertise on Ajax scraping. Your article was well-explained, and I'm excited to implement this technique in my projects!
Walter
Igor, your article was fantastic! The step-by-step approach made Ajax scraping easy to understand. Thank you for sharing your knowledge and insights!
Laura
Igor, thank you for sharing your insights on Ajax scraping. The examples you provided were helpful, and I'm eager to apply this technique. Great work!
Henry
Igor, your article on Ajax scraping was excellent! The explanations were clear, and I now have a solid understanding of this technique. Thank you!
Jack
Igor, thank you for the informative article on Ajax scraping. Your expertise shines through, and I'm excited to apply this technique in my projects. Well done!
Eleanor
Igor, your article on Ajax scraping was exceptional! The examples you provided were helpful, and I now feel confident in using Ajax for scraping. Thank you!
Fred
Igor, thank you for sharing your knowledge on Ajax scraping. Your article was well-written and packed with valuable insights. Great work!
Mary
Igor, your article on Ajax scraping was fantastic! The step-by-step instructions made it easy to follow, and I now feel confident in using Ajax for scraping. Thank you!
Stephen
Igor, thank you for the insightful article on Ajax scraping. Your explanations were clear, and I'm now equipped with the knowledge to use Ajax effectively. Well done!
Ruth
Igor, your article on Ajax scraping was excellent! The examples you provided were helpful, and I now have a better understanding. Thank you for sharing!
Ernest
Igor, thank you for sharing your expertise on Ajax scraping. Your article was insightful, and I'm eager to try out this technique in my web projects!
Vanessa
Igor, your article on Ajax scraping was fantastic! The explanations were clear, and I'm excited to apply this technique in my projects. Thank you!
Steve
Igor, thank you for the informative article on Ajax scraping. Your insights were valuable, and I'm looking forward to implementing this technique. Well done!
Lori
Igor, your article on Ajax scraping was excellent! The examples you provided were helpful, and I now have a better understanding. Thank you for sharing!
Alan
Igor, thank you for the insightful article on Ajax scraping. Your expertise shines through, and I'm excited to test this technique in my upcoming projects!
Pamela
Igor, your article on Ajax scraping was fantastic! It provided a clear overview of the process, and I'm ready to try it out. Thank you!
Harry
Igor, thank you for sharing your expertise on Ajax scraping. Your article was informative, and I'm looking forward to applying this technique in my projects. Great work!
Deborah
Igor, your article on Ajax scraping was very informative. Your explanations were clear, and I'm eager to try this technique myself. Thank you!
Arthur
Igor, thank you for sharing your knowledge and insights on Ajax scraping. Your article was well-written and packed with valuable information. Great work!
Martha
Igor, your article on Ajax scraping was fantastic! The step-by-step instructions were concise, and I now have a solid understanding of this technique. Thank you!
Igor Gamanenko
Thank you all for your kind words and positive feedback on the article. I'm glad it was helpful! If you have any more questions related to Ajax scraping or any other topic, feel free to ask.
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