无法执行rsDriver(连接被拒绝)
我不能用Rselenium得到任何好处。这是第一步,也是我的输出:
library(RSelenium)rD <- rsDriver()
# checking Selenium Server versions:
# BEGIN: PREDOWNLOAD
# BEGIN: DOWNLOAD
# BEGIN: POSTDOWNLOAD
# checking chromedriver versions:
# BEGIN: PREDOWNLOAD
# BEGIN: DOWNLOAD
# BEGIN: POSTDOWNLOAD
# checking geckodriver versions:
# BEGIN: PREDOWNLOAD
# BEGIN: DOWNLOAD
# BEGIN: POSTDOWNLOAD
# checking phantomjs versions:
# BEGIN: PREDOWNLOAD
# BEGIN: DOWNLOAD
# BEGIN: POSTDOWNLOAD
# [1] "Connecting to remote server"
# Error in checkError(res) :
# Undefined error in httr call. httr output: Failed to connect to localhost port 4567: Connection refused
# In addition: Warning message:
# In rsDriver() : Could not determine server status.
我错过了什么 ?
回答:
尝试运行不建议使用的checkForServer()
Selenium时,有两种选择:
- 使用rsDriver
- 使用Docker
看到:
RSelenium::checkForServer()# Error: checkForServer is now defunct. Users in future can find the function in
# file.path(find.package("RSelenium"), "examples/serverUtils"). The
# recommended way to run a selenium server is via Docker. Alternatively
# see the RSelenium::rsDriver function.
大家似乎 对发生问题rsDriver和码头工人是推荐的选项,所以我们走的这条路:
- 安装码头工人
- 运行它,按要求重新启动计算机
- 通过在命令行中
docker pull selenium/standalone-firefox
(或chrome
代替firefox
)或在R中运行来拉取图像shell('docker pull selenium/standalone-firefox')
- 通过在命令行中
docker run -d -p 4445:4444 selenium/standalone-firefox
或在R中运行来启动服务器shell('docker run -d -p 4445:4444 selenium/standalone-firefox')
- 然后运行
remDr <- remoteDriver(remoteServerAddr = "localhost", port = 4445L, browserName = "firefox'")
。该文档对虚拟机提出了一些不同的建议,但我无法使其正常工作。
设置了这个,这是我的代码:
shell('docker run -d -p 4445:4444 selenium/standalone-firefox')remDr <- remoteDriver(remoteServerAddr = "localhost", port = 4445L, browserName = "firefox")
remDr$open()
remDr$navigate("http://www.google.com/ncr")
remDr$getTitle()
# [[1]]
# [1] "Google"
有关更多信息的文档:
- https://cran.r-project.org/web/packages/RSelenium/vignettes/RSelenium-basics.html
- https://cran.r-project.org/web/packages/RSelenium/vignettes/RSelenium-docker.html
以上是 无法执行rsDriver(连接被拒绝) 的全部内容, 来源链接: utcz.com/qa/428617.html