Java作为互联网开发的主流语言，广泛应用于互联网领域，本课程使用java技术为大家讲解如何编写爬虫程序爬取网络上有价值的数据信息。(Java, as the mainstream language of Internet development, is widely used in the field of Internet. This course uses Java technology to explain how to write crawler programs and crawl