How the R language crawler crawls the recruitment information of the recruitment website

How does the R language crawler crawl the recruitment information of the recruitment website? in view of this problem, this article introduces the corresponding analysis and answer in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

R language crawls the recruitment information on the recruitment website, although R does not specialize in python as a crawler, but there is a package of rvest that I think is not bad. I try to crawl the data of 58.com recruitment website.

Rvest package, the functions used are:

Read_html ()

Html_nodes ()

Html_text ()

Html_attr ()

The specific source code is as follows:

# load related packages #

Library (xml2)

Library (rvest)

Library (base)

Get the address of each subsite below

# 58 URL of the main website in the same city

Url