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Semalt Expert Javascript Jquery Ve Regex Kullanarak Web Kazıma İçin Adımları Tanımlıyor

Feb 12, 2018

Sadece web sitesi API'lerinden veri getirmek için jQuery'yi kullanmak çok kolay olsa da, tüm sitelerin, yalnızca ihtiyacınız olan bilgiyi alabileceğiniz bir genel API'sı yoktur. Bu nedenle, bir sonraki seçeneği bulmak isteyebilirsiniz web atma. JQuery ve Regex'i kullanarak JavaScript ile hurdaya ayırma istemci tarafı web'i kullanma süreci. Web kazıma aslında, istediğiniz tüm verileri aldıktan sonra web sitesi API'lerini kullanmak gereksiz yapar. API'lar için, size geri dönmenizi kolaylaştıracak şekilde giriş yapmanız gerekebilir.

jQuery .get isteğini kullanarak, tam sayfa HTML'yi alın. Tüm sayfa kaynak kodu konsola günlüğe kaydedilir. Erişim reddinin bu aşamasında bir hata alabilirsiniz, ancak bir çözüm olduğu için endişelenmemelisiniz. Kod sayfayı bir tarayıcı yaptığı gibi istiyor, ancak sayfa görüntüleme yerine HTML kodunu alıyorsunuz.

Verim doğrudan doğruya istediğiniz gibi olmayabilir, ancak bilgi tuttuğunuz kodda. İstediğiniz verileri almak için .find () gibi jQuery yöntemini kullanın. Tüm sayfayı harici komut dosyalarına, yazı tiplerine ve stil sayfalarına yüklemek için yanıtı bir jQuery nesnesine dönüştürün. Bununla birlikte, yalnızca bazı bitlere ihtiyaç duymanız gerekir; tüm sayfa ve harici veriler. Metinde komut desenleri bulmak ve onları ortadan kaldırmak için Regex kullanın. Yine de, ilgilendiğiniz verileri seçmek için Regex'i kullanabilirsiniz.

Regex, dizideki tüm desen türlerini eşleştirmekte ve yanıtta veri aramak için önemlidir. Yukarıda oluşturulan Regex kodunu kullanarak herhangi bir veri dosyası biçimini çıkarabilirsiniz. İhtiyacınız olan verilerin düz metin halinde olması çok daha kolay olurdu.

Karşılaşabileceğiniz Zorluklar ve Onları Nasıl Kullanacaksınız

Çapraz kaynaklı kaynaklar paylaşımı (CORS), istemci tarafı web hurdalamasında gerçek bir zorluktur. Web hurdaya çıkarma, bazı durumlarda yasadışı sayıldığından kısıtlanmıştır. Güvenlik nedenleriyle, komut dosyaları içerisindeki çapraz orijinal HTTP istekleri sınırlandırılarak CORS hatasıyla sonuçlanır. Tüm orijinaller, çapraz orijinli, Kötüye Neler Var, Kökeni ve diğerleri gibi alanlar arası araçlar kullanarak, amacınıza ulaşabilirsiniz.

Karşılaşabileceğiniz bir diğer sorun oranı sınırlandırmaktır. Çoğu web sitesinin, otomatik erişime karşı bir savunma olarak Captcha'dan daha fazla olmamasına rağmen, ücret sınırlamaları olan bir siteyle karşılaşabilirsiniz. Burada sınırlamanın üstesinden gelmek için birkaç IP kullanabilirsiniz.

Bazı sitelerde, web kazıyıcıları durdurmak için kullanılan yazılımlar bulunur. Ne kadar güçlü olduklarına bağlı olarak, kendinizi bir karmaşa içinde bulabilirsiniz. Sorunlara karışmamak için bazı bilgilere bakmanız gerekebilir.

CSS stil sayfaları, resimler ve komut dosyaları, video, ses, eklentiler, yazı tipleri ve çerçeveler de dahil olmak üzere kökeni paylaşmaya izin veren siteler için yabancı alan adından bazı kaynaklara izin verilir.

Üç adım, herhangi bir web sitesinden verileri hurdaya çıkarmada size yardımcı olabilir:

I. İstemci tarafında JavaScript kullanın.

II. Verileri kazıymak için jQuery kullanın.

III. Gerekli bilgiler için verileri filtrelemek için Regex kullanın.

Max Bell

Thank you for reading my article on Semalt Expert JavaScript, jQuery ve Regex Kullanarak Web Kazıma İçin Adımları Tanımlıyor! If you have any questions or comments, please feel free to ask.

Alice

Great article! I found the step-by-step guide on web scraping using JavaScript, jQuery, and regex to be very helpful. Thanks for sharing, Max!

Max Bell

Thank you, Alice! I'm glad you found the article helpful. Do you have any specific questions about the techniques mentioned?

Bob

I'm new to web scraping, but your article explained the concepts clearly. I appreciate the practical examples and resources provided. Thanks, Max!

Max Bell

Thank you, Bob! I'm glad the explanations and examples were clear for you. If you have any specific questions as you start practicing web scraping, feel free to ask.

Eva

This article was really informative. I've been wanting to learn web scraping techniques, and your guide made it easier to understand. Thank you!

Chris

I found the section on using regex in web scraping to be very interesting. It's a powerful tool that can improve data extraction. Great article, Max!

Max Bell

Thank you, Chris! Regex can definitely be a powerful tool in web scraping for extracting specific data patterns. I'm glad you found it interesting!

Lucy

Thanks for the article, Max! I've been using JavaScript and jQuery for web development, but I never realized they could be applied to web scraping too. This opens up new possibilities!

Michael

Max, this article was just what I needed! I've been struggling with web scraping issues, and your step-by-step guide has given me a better understanding. Thank you!

Stephanie

I enjoyed reading your article, Max. It's well-written and easy to follow. Web scraping can be a valuable skill, especially with the techniques you've shared.

Tom

Thanks for the insightful article, Max. Your step-by-step approach makes it easier for beginners to grasp the process of web scraping.

Max Bell

Thank you, Tom! I'm glad you found the step-by-step approach helpful, especially for beginners. If you have any questions as you start experimenting with web scraping, feel free to reach out.

Sarah

The practical examples in your article are really helpful, Max. They make it easier to understand how to apply the techniques in real-world scenarios. Thank you!

Adam

I've been looking for a comprehensive guide on web scraping. Thank you, Max, for providing such an informative article. I'm excited to give it a try!

Max Bell

Thank you, Adam! I'm glad you found the article informative. Best of luck with your web scraping projects!

Melissa

As a developer, I appreciate the detailed explanations and examples in your article, Max. It has given me a solid foundation to explore web scraping further. Great job!

Laura

Thanks for sharing your knowledge, Max. Web scraping can be a valuable skill for data analysis and research. Your article provided a great starting point.

Nick

Excellent article, Max! The combination of JavaScript, jQuery, and regex makes web scraping a powerful technique. Thanks for the guide!

Oliver

Your article is an excellent resource for anyone interested in web scraping, Max. The explanations are clear, and the examples make it easy to understand. Well done!

Grace

Thanks for the step-by-step guide, Max. Your article helped me understand the process of web scraping better. I appreciate the effort you put into explaining the concepts.

Max Bell

Thank you, Grace! I'm glad the step-by-step guide helped you understand web scraping better. If you have any questions as you start applying the techniques, feel free to ask.

Daniel

Max, I found your article to be very informative. The use of JavaScript, jQuery, and regex in web scraping is a powerful combination. Thank you for sharing your expertise!

Emily

Thank you for the detailed article, Max. It has given me a better understanding of web scraping techniques, and I'm excited to apply them in my projects.

Olivia

I've been looking for a comprehensive resource on web scraping. Your article, Max, provides a great starting point. Thank you!

Jackson

Max, I appreciate the examples you provided in your article. They make it easier to grasp the concepts and apply them in practical scenarios. Well done!

Sophia

Your article on web scraping, Max, was a great read. The explanations were clear, and the step-by-step guide made it easy to follow. Thank you for sharing!

Connor

Max, thank you for taking the time to write this article. The techniques and examples you shared are valuable for anyone interested in web scraping.

Amelia

I'm new to web scraping, but your article made it less intimidating. The explanations and resources provided are helpful. Thank you, Max!

Henry

Thanks for the article, Max. I'm excited to explore web scraping further with the techniques you've shared. This will be a valuable skill for data processing.

Liam

I found your article on web scraping to be informative and well-structured, Max. The practical examples made it easier to understand the concepts. Thank you!

Emma

Max, your article provided a comprehensive overview of web scraping techniques. The step-by-step guide is perfect for beginners. Thank you for sharing your knowledge!

Michaela

I've been curious about web scraping, and your article, Max, gave me a good starting point. Thank you for the informative guide!

Victor

Max, thanks for shedding light on web scraping techniques. Your article is a valuable resource for anyone looking to extract data from websites.

Max Bell

Thank you, Victor! I'm glad you found the article helpful in shedding light on web scraping techniques. If you have any further questions or need assistance, feel free to ask.

Caroline

I appreciate the effort you put into explaining web scraping techniques, Max. The examples provided gave me a better understanding of the process. Thank you!

Oliver

Max, your article really demystifies web scraping. The explanations are clear, and the step-by-step guide makes it easy to follow. Thank you for sharing your knowledge!

Isabella

Your article on web scraping was enlightening, Max. The techniques and examples provided are helpful for anyone looking to extract data from websites. Thank you!

Joshua

Max, your article on web scraping techniques was very informative. I appreciate the step-by-step guide, as it makes it easier to understand and implement. Well done!

Sophie

Thank you for the comprehensive article on web scraping, Max. It has given me a better understanding of the techniques involved and the value they can bring.

Jessica

Max, your article was a great read. The explanations and examples provided a solid foundation for understanding web scraping techniques.

Nathan

Thanks for sharing your expertise, Max. Web scraping is an essential skill in data analysis, and your article provided valuable insights into the process.

Anna

Max, your article is a great resource for anyone looking to learn web scraping. The explanations and examples make it easy to grasp the concepts. Thank you!

Leo

I found your article on web scraping to be well-written and informative, Max. The examples provided a clear understanding of the techniques involved. Thank you!

Samantha

Thank you for the informative article on web scraping, Max. Your explanations and examples helped me gain a better grasp of the techniques involved.

William

I appreciate the step-by-step guide you provided in your article, Max. It made it easier for me to understand and apply web scraping techniques. Thank you!

Noah

Max, your article on web scraping was very helpful. The explanations and examples provided a solid foundation for understanding the techniques. Thank you!

Ava

Thanks for the article, Max. The explanations and examples make it easier to grasp web scraping techniques. I appreciate the effort you put into sharing your knowledge.

Max Bell

Thank you, Ava! I'm glad you found the explanations and examples helpful in understanding web scraping techniques. If you have any questions or need further guidance, feel free to ask.

Mason

Max, I found your article on web scraping techniques to be informative and well-structured. The step-by-step guide makes it easier for beginners like me to understand. Thank you!

Elizabeth

Thank you for the detailed article on web scraping, Max. It provided a comprehensive overview of the techniques involved. I appreciate the practical examples too!

Lily

Your article, Max, gave me a better understanding of web scraping techniques. The examples provided made it easier to visualize the process. Thank you!

James

Max, your article on web scraping techniques was informative and well-explained. The practical examples demonstrated the concepts effectively. Thank you!

Benjamin

Thank you for sharing your knowledge, Max. Your article on web scraping techniques was well-written and easy to understand. I appreciate the effort you put into explaining the concepts.

Chloe

I enjoyed reading your article on web scraping, Max. The step-by-step guide and practical examples made it easier to understand the techniques involved. Well done!

Andrew

Thanks for the article, Max. The explanations and examples in your article on web scraping techniques were clear and concise. It's a valuable resource!

Victoria

I found your article on web scraping techniques to be very informative, Max. The practical examples helped me understand how to apply the techniques effectively. Thank you!

David

Thank you for the comprehensive article on web scraping techniques, Max. The step-by-step guide and examples make it easier to understand and implement. Well done!

Natalie

Max, your article provided a clear understanding of web scraping techniques. The explanations and examples were helpful in grasping the concepts. Thank you!

Leo

Your article, Max, is an essential resource for anyone looking to learn web scraping techniques. The step-by-step guide and examples make it easy to follow. Thank you!

Melanie

Max, I appreciate the effort you put into explaining web scraping techniques in your article. The practical examples make it easier to understand and apply. Thank you!

Matthew

Thank you for the informative article on web scraping, Max. The explanations and examples provided a solid foundation for understanding the techniques involved.

Julia

Max, your article on web scraping techniques was a great read. The step-by-step guide and examples provided a clear understanding of the process. Thank you!

Gabriel

I found your article on web scraping techniques to be very helpful. The explanations and examples were clear and concise. Thank you for sharing your knowledge, Max!

Jackson

Max, your article on web scraping techniques was informative and well-structured. The practical examples made it easier to understand the concepts. Thank you!

Daniel

Thank you for the insightful article on web scraping, Max. The explanations and examples provided a solid foundation for understanding the process. Well done!

Sofia

Max, your article on web scraping techniques was well-written and informative. The explanations made it easier to grasp the concepts involved. Thank you!

Joseph

Thanks for sharing your expertise on web scraping techniques, Max. Your article provided valuable insights into the process. I appreciate the effort you put into explaining the concepts.

Emily

Max, your article on web scraping techniques was a great resource. The explanations and examples made it easier to understand and apply the techniques. Thank you!

Samuel

Thank you for the comprehensive article on web scraping, Max. The step-by-step guide and examples provided a clear understanding of the techniques involved. Well done!

Grace

Max, I found your article on web scraping techniques to be well-structured and informative. The practical examples made it easier to grasp the concepts. Thank you!

Ethan

Thanks for sharing your knowledge on web scraping techniques, Max. Your article provided valuable insights into the process. I appreciate the effort you put into explaining the concepts.

Scarlett

Max, your article on web scraping techniques was very informative. The explanations and examples provided a clear understanding of the techniques involved. Thank you!

Connor

Thank you for the detailed article on web scraping, Max. The step-by-step guide and practical examples made it easier to understand the techniques involved.

Madison

Max, your article was an excellent resource for learning web scraping techniques. The explanations and examples provided a solid understanding of the process. Thank you!

David

I found your article on web scraping techniques to be very informative, Max. The step-by-step guide and practical examples made it easier to understand and apply. Thank you!

Josephine

Max, your article on web scraping techniques was insightful and well-structured. The explanations and examples provided a clear understanding of the process. Thank you!

Christopher

Thank you for sharing your knowledge on web scraping techniques, Max. Your article provided valuable insights into the process. I appreciate the effort you put into explaining the concepts.

Maria

Max, your article on web scraping techniques was a great resource. The explanations and examples made it easier to understand and apply the techniques. Thank you!

Charlie

Thanks for the comprehensive article on web scraping, Max. The step-by-step guide and examples provided a clear understanding of the techniques involved. Well done!

Zoe

Max, I found your article on web scraping techniques to be well-structured and informative. The practical examples made it easier to grasp the concepts. Thank you!

Henry

Thanks for sharing your knowledge on web scraping techniques, Max. Your article provided valuable insights into the process. I appreciate the effort you put into explaining the concepts.

Audrey

Max, your article on web scraping techniques was very informative. The explanations and examples provided a clear understanding of the techniques involved. Thank you!

Jonathan

Thank you for the detailed article on web scraping, Max. The step-by-step guide and practical examples made it easier to understand the techniques involved.

Sophia

Max, your article was an excellent resource for learning web scraping techniques. The explanations and examples provided a solid understanding of the process. Thank you!

Samuel

I found your article on web scraping techniques to be very informative, Max. The step-by-step guide and practical examples made it easier to understand and apply. Thank you!

Elizabeth

Max, your article on web scraping techniques was insightful and well-structured. The explanations and examples provided a clear understanding of the process. Thank you!

William

Thank you for sharing your knowledge on web scraping techniques, Max. Your article provided valuable insights into the process. I appreciate the effort you put into explaining the concepts.

Ella

Max, your article on web scraping techniques was a great resource. The explanations and examples made it easier to understand and apply the techniques. Thank you!

Ryan

Thanks for the comprehensive article on web scraping, Max. The step-by-step guide and examples provided a clear understanding of the techniques involved. Well done!

Avery

Max, I found your article on web scraping techniques to be well-structured and informative. The practical examples made it easier to grasp the concepts. Thank you!

Joseph

Thanks for sharing your knowledge on web scraping techniques, Max. Your article provided valuable insights into the process. I appreciate the effort you put into explaining the concepts.

Bella

Max, your article on web scraping techniques was very informative. The explanations and examples provided a clear understanding of the techniques involved. Thank you!

Thomas

Thank you for the detailed article on web scraping, Max. The step-by-step guide and practical examples made it easier to understand the techniques involved.

Grace

Max, your article was an excellent resource for learning web scraping techniques. The explanations and examples provided a solid understanding of the process. Thank you!

Lucas

I found your article on web scraping techniques to be very informative, Max. The step-by-step guide and practical examples made it easier to understand and apply. Thank you!

Zoe

Max, your article on web scraping techniques was insightful and well-structured. The explanations and examples provided a clear understanding of the process. Thank you!

Henry

Thank you for sharing your knowledge on web scraping techniques, Max. Your article provided valuable insights into the process. I appreciate the effort you put into explaining the concepts.

Audrey

Max, your article on web scraping techniques was a great resource. The explanations and examples made it easier to understand and apply the techniques. Thank you!

Jonathan

Thanks for the comprehensive article on web scraping, Max. The step-by-step guide and examples provided a clear understanding of the techniques involved. Well done!

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