What are the ways to obtain proxy IP
This article mainly introduces "what are the ways to obtain proxy IP". In daily operation, I believe that many people have doubts about the access to proxy IP. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "what is the way to get proxy IP?" Next, please follow the editor to study!
First, the acquisition of proxy IP
It can be obtained from the following ways:
1. Get it from a free website with very low quality and very few IP available.
2. For fee-based agency services, the quality is much higher.
3. Build your own proxy server, which is stable, but requires a lot of server resources.
The proxy IP pool in this paper is through the crawler to obtain the proxy IP from several free websites in advance, and then check whether the IP is available, store it in the MongoDB if available, and finally display it on the front-end page.
2. Obtain available Proxy
The core code for getting the agent is ProxyManager, which is implemented in RxJava2 and mainly does the following:
1. Create a ParallelFlowable that crawls in parallel for each page that provides a free proxy IP.
2. Crawl each page and return List
3. Check the list of proxy IP obtained from each page to determine whether it is available.
4. Save to proxyList in turn
When doing crawlers, it is necessary to maintain an available proxy IP pool. Of course, if you want to pursue a more stable proxy IP, it is better to consider high quality. Generally speaking, crawler users do not have the ability to maintain their own servers, or to solve the problem of proxy IP on their own, first, because the technical content is too high, second, because the cost is too high, of course, there are many people will put some free proxy IP on the Internet, but from the practical, stability and security considerations, it is not recommended that you use free IP.
At this point, the study of "what are the ways to obtain agent IP" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!
