RSelenium，Chrome，如何设置下载目录，文件下载错误 [英] RSelenium, Chrome, How to set download directory, file download error

问题描述

您好 :) 我正在尝试从 XYZ 网站自动下载电子表格.该代码运行良好，通过授权没有问题并下载文件.但是，当我尝试更改下载目录时，它开始下载文件，但立即在浏览器中给我文件下载错误.我尝试更改下载目录的方式是添加:

Hello :) I'm trying to automate downloading spreadsheets from XYZ website. The code works well, goes through authorization without problem and downloads the file. But, when I try to change the download directory, it starts to download the file, but instantly gives me file download error in browser. The way I tried to change the download directory is by adding:

eCaps <- list(
  chromeOptions = 
    list(prefs = list("profile.default_content_settings.popups" = 0L,
"download.prompt_for_download" = FALSE,
"directory_upgrade" = TRUE,
"download.default_directory" = "C:/XXX/YYY"
    )
    )
)

并将 extraCapabilities = eCaps 添加到 rsDrive():

and adding the extraCapabilities = eCaps to rsDrive():

rD <- rsDriver(browser= "chrome", chromever = "80.0.3987.16", extraCapabilities = eCaps)

没有这两个更改代码运行良好，下载到默认下载目录.有没有办法正确设置它以下载到任何其他目录?完整代码如下:

Without these two changes code worked well, downloading to default download directory. Is there any way to set it properly to download to any other directory? Here is the complete code:

library(RSelenium)
eCaps <- list(
  chromeOptions = 
    list(prefs = list("profile.default_content_settings.popups" = 0L,
"download.prompt_for_download" = FALSE,
"directory_upgrade" = TRUE,
"download.default_directory" = "C:/XXX/YYY"
    )
    )
)
rD <- rsDriver(browser= "chrome", chromever = "80.0.3987.16", extraCapabilities = eCaps)
remDr <- rD$client

appURL <- 'https://XYZ'
remDr$navigate(appURL)
remDr$findElement("id", "loginEmail")$sendKeysToElement(list("email"))
remDr$findElement("id", "loginPassword")$sendKeysToElement(list("password", key='enter'))

appURL2 <- "https://XYZ/XYZ"
remDr$navigate(appURL2)
remDr$navigate(appURL2)

remDr$findElement("link text", "XLSX")$sendKeysToElement(list(key='enter'))

推荐答案

我遇到了同样的问题，这是有效的解决方案:

I ran into this same problem and here's the solution that worked:

出于某种原因，您需要在 download.default_directory 路径中使用双反斜杠，而不是单正斜杠.

For some reason, you need to use double backslashes in the download.default_directory path, rather than single forward slashes.

所以试试这个:

"download.default_directory" = "C:\XXX\YYY"

而不是这个:

"download.default_directory" = "C:/XXX/YYY"

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