<ul><li>Using proxy IP can significantly improve web crawling efficiency and success rate, especially when facing high-frequency requests or restricted access websites.</li><li>Java provides a rich network library that makes it relatively simple to integrate proxy IP for web crawling.</li><li>To use proxy IP in Java, you need to set up the proxy server information and create a Proxy object. Then, open the connection and set up the proxy using the HttpURLConnection class.</li><li>Alternatively, you can use third-party libraries like Apache HttpClient to simplify code, provide richer functions, and better performance for setting up proxy IP.</li></ul>

How to use proxy IP to crawl web pages in Java

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