这里有几个步骤。首先,填写表格并提交,然后提取到表格的链接,然后阅读表格。
library("rvest")
library("stringr")
url <- "https://declaraciones.sri.gob.ec/mat-vehicular-internet/reportes/general/valoresAPagar.jsp"
s <- html_session(url)
s_form <- html_form(s)[[2]]
filled_form <- set_values(s_form, placaCamv="pyk0911")
out <- submit_form(session=s, filled_form)
# out contains the link to the data table that pops up. This extracts that link
dat_path <- out %>% html_nodes("input.boton") %>% html_attr("onclick") %>%
.[2] %>% str_extract("(?<=\\(\\').+(?=','avaluos)")
# then read the second table. I assume this is what you need.
df <- read_html(paste0("https://declaraciones.sri.gob.ec", dat_path)) %>%
html_table(fill=TRUE) %>% .[[2]]
> df
PerÃodo Avalúo Impuesto
1 2016 1,699.00 8.50
2 2015 1,699.00 8.50
3 2014 1,699.00 8.50
4 2013 1,699.00 8.50
5 2012 1,699.00 8.50
6 2011 1,699.00 8.50
7 2010 1,699.00 8.50
8 2009 1,699.00 8.50
9 2008 1,699.00 8.50
10 2007 1,699.00 8.50
11 2006 3,398.00 16.99
12 2005 7,036.00 50.36
13 2004 10,554.00 111.08
14 2003 14,072.00 202.16
15 2002 16,990.00 300.00
16 2001 4,000.00 68.00
谢谢@cory工作完美! – Duck