Question

我想使用R从网址抓取新闻（http://www.foxnews.com/search-results/search?q=“AlphaGo”＆amp; ss = fn＆amp; start = 0）。这是我的代码：

url <- "http://api.foxnews.com/v1/content/search?q=%22AlphaGo%22&fields=date,description,title,url,image,type,taxonomy&section.path=fnc&start=0&callback=angular.callbacks._0&cb=2017719162"
html <- str_c(readLines(url,encoding = "UTF-8"),collapse = "")
content_fox <- RJSONIO:: fromJSON(html)

然而，json无法理解为出现错误：

文件错误（con，“r”）：无法打开连接

我注意到json从angular.callbacks._0开始，我认为这可能是问题所在。

知道怎么解决这个问题吗？

Answer 1

根据Parse JSONP with R中的答案，我用两个新代码调整了我的代码并且它有效：

url <- "http://api.foxnews.com/v1/content/search?q=%22AlphaGo%22&fields=date,description,title,url,image,type,taxonomy&section.path=fnc&start=0&callback=angular.callbacks._0&cb=2017719162"
html <- str_c(readLines(url,encoding = "UTF-8"),collapse = "")
html <- sub('[^\\{]*', '', html) # remove function name and opening parenthesis
html <- sub('\\)$', '', html) # remove closing parenthesis
content_fox <- RJSONIO:: fromJSON(html)

从“angular.callbacks”网络抓取数据

1 个答案: