问题
I am trying to get the results of that form with httr.
Having looked the form results, I tried the following:
library(httr)
library(stringr)
r = str_c("http://www.memoiredeshommes.sga.defense.gouv.fr/fr/arkotheque/",
"client/mdh/base_morts_pour_la_france_premiere_guerre/index.php")
q = list(
"action" = 1,
"todo" = "rechercher",
"le_id" = "",
"multisite" = "",
"r_c_nom" = "mo",
"r_c_nom_like" = 1,
"r_c_prenom" = "",
"r_c_prenom_like" = 1,
"r_c_naissance_jour_mois_annee_jj_debut" = "",
"r_c_naissance_jour_mois_annee_mm_debut" = "",
"r_c_naissance_jour_mois_annee_yyyy_debut" = 1890,
"r_c_naissance_jour_mois_annee_jj_fin" = "",
"r_c_naissance_jour_mois_annee_mm_fin" = "",
"r_c_naissance_jour_mois_annee_yyyy_fin" = "",
"r_c_id_naissance_departement" = "",
"hidden_c_id_naissance_departement" = "",
"r_c_id_naissance_pays" = "",
"hidden_c_id_naissance_pays" = "",
"r_annot_c_id_grade" = "",
"hidden_c_id_grade" = "",
"r_annot_c_id_unite" = "",
"hidden_c_id_unite" = "",
"r_annot_c_id_recrutement_bureau" = "",
"hidden_c_id_recrutement_bureau" = "",
"r_annot_c_classe" = "",
"r_annot_c_recrutement_matricule" = "",
"r_annot_c_id_naissance_lieu" = "",
"hidden_c_id_naissance_lieu" = "",
"r_annot_c_deces_jour_mois_annee_jj_debut" = "",
"r_annot_c_deces_jour_mois_annee_mm_debut" = "",
"r_annot_c_deces_jour_mois_annee_yyyy_debut" = "",
"r_annot_c_deces_jour_mois_annee_jj_fin" = "",
"r_annot_c_deces_jour_mois_annee_mm_fin" = "",
"r_annot_c_deces_jour_mois_annee_yyyy_fin" = "",
"r_annot_c_id_deces_lieu" = "",
"hidden_c_id_deces_lieu" = "",
"r_annot_c_deces_lieu_complement" = "",
"r_annot_c_deces_lieu_complement_like" = 1,
"r_annot_c_id_deces_departement" = "",
"hidden_c_id_deces_departement" = "",
"r_annot_c_id_deces_pays" = "",
"hidden_c_id_deces_pays" = "",
"r_annot_c_id_transcription_etablissement_lieu" = "",
"hidden_c_id_transcription_etablissement_lieu" = "",
"r_annot_c_id_transcription_etablissement_departement" = "",
"hidden_c_id_transcription_etablissement_departement" = "",
"r_annot_c_id_transcription_etablissement_pays" = "",
"hidden_c_id_transcription_etablissement_pays" = ""
)
t = GET(r, query = q, verbose())
writeLines(content(t, "text", encoding = "UTF-8"), "~/Desktop/test.html")
… which is not working at all (all I get is NA).
What am I doing wrong?
回答1:
You could try it like this
library(rvest)
html_session(url) %>%
rvest:::request_POST(url, body = q, encode = "form") %>%
read_html %>%
html_table
# [[1]]
# Nom Prénom(s) Date de naissance Département/Pays de naissance Détail Images Panier Lien Fiche annotée
# 1 MOAL Alain Marc 10-08-1890 29 - Finistère Détail Visualiser Panier Ark oui
# 2 MOAL Jean 22-12-1890 29 - Finistère Détail Visualiser Panier Ark oui
# 3 MOAL Joseph Marie 29-04-1890 29 - Finistère Détail Visualiser Panier Ark oui
# 4 MOALIC Pierre Joseph Marie 05-04-1890 29 - Finistère Détail Visualiser Panier Ark oui
# ...
来源：https://stackoverflow.com/questions/40327657/r-emulating-a-complex-form-with-httr