Html r谷歌新闻结果链接
我对从web上获取信息到R是个新手，但我发现了一个很好的代码，它介绍了如何从普通的google搜索中获取到R的链接 我需要让这个方法在谷歌新闻搜索中运行。 我知道我必须通过添加类似“&source=lnms&tbm=nws”的内容来更改url。 如果我将其从R复制并粘贴到浏览器中，我构建的url将引导我找到正确的新闻结果页-到目前为止一切顺利 我查看了新闻结果页面的html代码，发现信息位于h3[@class='r dO0Ag']中，但还有另一个节点，我不知道如何对这部分进行编码。 非常感谢您的帮助！Html r谷歌新闻结果链接,html,r,xml,web-scraping,Html,R,Xml,Web Scraping,我对从web上获取信息到R是个新手，但我发现了一个很好的代码，它介绍了如何从普通的google搜索中获取到R的链接 我需要让这个方法在谷歌新闻搜索中运行。 我知道我必须通过添加类似“&source=lnms&tbm=nws”的内容来更改url。 如果我将其从R复制并粘贴到浏览器中，我构建的url将引导我找到正确的新闻结果页-到目前为止一切顺利 我查看了新闻结果页面的html代码，发现信息位于h3[@class='r dO0Ag']中，但还有另一个节点，我不知道如何对这部分进行编码。 非常感谢您的
库（XML）
图书馆（RCurl）
getGoogleURL这里有很多选项
RCurl
或RSelenium
将起作用
关键是生成正确的URL：
> library(XML)
> library(RCurl)
> search.term <- "china"
> quotes=FALSE
> start=0
> getGoogleURL <- paste('http://www.google.com',
+ '/search?hl=en&gl=kr&tbm=nws&authuser=0&q=',
+ search.term, "&start=",start,sep='')
> getGoogleURL
[1] "http://www.google.com/search?hl=en&gl=kr&tbm=nws&authuser=0&q=china&start=0"
>
运行时：
>库（XML）
>图书馆（RCurl）
>getGoogleURL这里有很多选项
RCurl
或RSelenium
将起作用
关键是生成正确的URL：
> library(XML)
> library(RCurl)
> search.term <- "china"
> quotes=FALSE
> start=0
> getGoogleURL <- paste('http://www.google.com',
+ '/search?hl=en&gl=kr&tbm=nws&authuser=0&q=',
+ search.term, "&start=",start,sep='')
> getGoogleURL
[1] "http://www.google.com/search?hl=en&gl=kr&tbm=nws&authuser=0&q=china&start=0"
>
运行时：
>库（XML）
>图书馆（RCurl）
>getGoogleURL您可能想发布您正在查看的术语。如果您对此不屑一顾，您将看到。这只是一个简单的“中国”，但也可能是一个更复杂的搜索查询。你可能想发布你正在查看的术语。如果你向下看，你会看到。这只是“中国”，但也可能是一个更复杂的搜索查询。谢谢@Technophobe01这看起来很棒。你能解释一下参数“start”的用途吗？通过这种方法我能得到最新的新闻吗？@Hiatus Q1-关于“开始”，谷歌会返回多页的结果。Start=0是第一页，Start=1是下一页，依此类推。Q2-最新新闻-是的，返回调用点的最新谷歌新闻。您可能希望在运行查询时添加时间戳。通过这种方式，您可以将新闻/订单与日期关联起来，尽管不同用户的结果不同。@Hiatus-Whoops，根据传入的起始页更新了答案以正确返回正确的结果。代码示例已更新。谢谢@Technophobe01这看起来很棒。你能解释一下参数“start”的用途吗？通过这种方法我能得到最新的新闻吗？@Hiatus Q1-关于“开始”，谷歌会返回多页的结果。Start=0是第一页，Start=1是下一页，依此类推。Q2-最新新闻-是的，返回调用点的最新谷歌新闻。您可能希望在运行查询时添加时间戳。通过这种方式，您可以将新闻/订单与日期关联起来，尽管不同用户的结果不同。@Hiatus-Whoops，根据传入的起始页更新了答案以正确返回正确的结果。代码示例已更新。
library(XML)
library(RCurl)
getGoogleURL <- function(search.term, start=0, quotes=FALSE) {
search.term <- gsub(' ', '%20', search.term)
if(quotes) search.term <- paste('%22', search.term, '%22', sep='')
getGoogleURL <- paste('http://www.google.com',
'/search?hl=en&gl=kr&tbm=nws&authuser=0&q=',
search.term, "&start=",start,sep='')
getGoogleURL <- URLencode(getGoogleURL)
}
getGoogleNews <- function(search.term="China",
start=0,
quotes=FALSE ){
google.url <- getGoogleURL(search.term=search.term,
start, quotes=quotes)
print(google.url)
doc <- getURL(google.url,
httpheader = c("User-Agent" = "R(3.0.3)"))
html <- htmlTreeParse(doc, useInternalNodes = TRUE,
error=function(...){}, asText = TRUE)
nodes <- getNodeSet(html, "//*/h3/a[@href]")
title <- sapply(nodes, function(x) x <- xmlValue(x))
url <- unname(sapply(nodes, function(x) x <- xmlAttrs(x)))
url <- gsub("\\/url\\?q=", "", url)
nodes <- getNodeSet(html, "//div[@class='slp']")
source <- sapply(nodes, function(x) x <- xmlValue(x))
nodes <- getNodeSet(html, "//div[@class='st']")
summary <- sapply(nodes, function(x) x <- xmlValue(x))
data.frame(title=title, source=source, url=url, summary=summary)
}
getGoogleNews("China")
getGoogleNews("China", 1)
getGoogleNews("China", 2)
> library(XML)
> library(RCurl)
> getGoogleURL <- function(search.term, start=0, quotes=FALSE) {
+ search.term <- gsub(' ', '%20', search.term)
+ if(quotes) search.term <- paste( .... [TRUNCATED]
> getGoogleNews <- function(search.term="China",
+ start=0,
+ quotes=FALSE ){
+ google.url <- ge .... [TRUNCATED]
> getGoogleNews("China")
[1] "http://www.google.com/search?hl=en&gl=kr&tbm=nws&authuser=0&q=China&start=0"
title
1 Taiwan says China is 'out of control' as it loses El Salvador to Beijing
2 China central bank official rebuts Trump's claim it is manipulating the ...
3 Airbnb Wants to Find a Home in China
4 China's biggest risk may be its property market — not the trade war
5 Malaysia has axed $22 billion of Chinese-backed projects, in a blow ...
6 China reaches 800 million internet users
7 China DEFIES Trump to buy nearly ALL oil imports from Iran despite ...
8 7 Signs that China's Military is Becoming More Dangerous
9 Asia markets trade mostly higher as investors look ahead to US ...
10 Can China, the world's biggest pork producer, contain a fatal pig ...
source
1 CNBC - 17 hours ago
2 CNBC - 10 hours ago
3 WIRED - 13 hours ago
4 CNBC - 23 hours ago
5 Business Insider - 11 hours ago
6 TechCrunch - 10 hours ago
7 Express.co.uk - 12 hours ago
8 The National Interest Online (blog) - 16 hours ago
9 CNBC - 17 hours ago
10 Science Magazine - 5 hours ago
url
1 https://www.cnbc.com/2018/08/21/taiwan-says-china-out-of-control-as-it-loses-el-salvador-to-beijing.html&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIFCgAMAA&usg=AOvVaw2cSTmS65-6IvKQV9xrl3y3
2 https://www.cnbc.com/2018/08/21/china-official-refutes-trumps-claim-it-is-manipulating-the-yuan.html&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIHSgAMAE&usg=AOvVaw2q7yr2oBWHib3bRAVmOna-
3 https://www.wired.com/story/airbnb-china-market/&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIJigAMAI&usg=AOvVaw2a2LSkYlosnwTFRCvjmUhm
4 https://www.cnbc.com/2018/08/21/china-economy-biggest-risk-may-be-property-market-not-trade-war.html&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIKSgAMAM&usg=AOvVaw1bUY5Ii7AlWURDifpeozJU
5 https://www.businessinsider.com/malaysia-axes-22-billion-of-belt-and-road-projects-blow-to-china-2018-8&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIILCgAMAQ&usg=AOvVaw0yGdVilstHZVBBXEuuAbmu
6 https://techcrunch.com/2018/08/21/china-reaches-800-million-internet-users/&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIINSgAMAU&usg=AOvVaw0VYTngAb-OBUSYkxKs0ZKp
7 https://www.express.co.uk/news/world/1006297/Iran-oil-china-donald-trump-oil-prices-oil-price-us-iran-nuclear-deal-sanctions&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIOCgAMAY&usg=AOvVaw3W5adCnWdzz71zvpgE1x6D
8 https://nationalinterest.org/blog/buzz/7-signs-chinas-military-becoming-more-dangerous-29352&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIPigAMAc&usg=AOvVaw1k05lyvFRrx_FImDKIsZ61
9 https://www.cnbc.com/2018/08/21/asia-markets-us-china-trade-talks-in-focus.html&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIQSgAMAg&usg=AOvVaw0YqzZPNbH9bawkv8qX8Bdm
10 http://www.sciencemag.org/news/2018/08/can-china-world-s-biggest-pork-producer-contain-fatal-pig-virus-scientists-fear-worst&sa=U&ved=0ahUKEwi28IGAt__cAhXCj1QKHb0rDPcQqQIIRCgAMAk&usg=AOvVaw1H0c03l4trLI3cbRRlnKJW
summary
1 Taiwan vowed on Tuesday to fight China's "increasingly out of control" behavior after Taipei lost another ally to Beijing when El Salvador ...
2 A senior official of China's central bank told a briefing on Tuesday that the yuan's exchange rate is set by the market, rebutting President Donald ...
3 China is littered with the virtual carcasses of startups that attempted to do business in the country and then gave up or were shut out.
4 China's hot real estate market remains a challenge for authorities trying to maintain stable economic growth in the face of trade tensions with ...
5 The projects were a $20 billion rail link and two gas pipelines worth $2.3 billion. All three were part of China's Belt and Road Initiative (BRI), a massive project ...
6 A new report [in Chinese] issued by the China Internet Network Information Center (CNNIC) put the number of people in China with access to ...
7 China is Iran's biggest oil customer and the shift shows the communist nation wants to keep buying Iranian crude oil despite US sanctions ...
8 Western media seized on a new Pentagon report that Chinese bombers are training to strike deep into the Western Pacific, including Guam, the ...
9 Chinese markets led gains on Tuesday in a mostly positive trading session across Asia, extending their upward climb from the previous day ...
10 As of today, ASF has been reported at sites in four provinces in China's northeast, thousands of kilometers apart. Containing the disease in a ...
> getGoogleNews("China", 1)
[1] "http://www.google.com/search?hl=en&gl=kr&tbm=nws&authuser=0&q=China&start=1"
title
1 China central bank official rebuts Trump's claim it is manipulating the ...
2 Airbnb Wants to Find a Home in China
3 China's biggest risk may be its property market — not the trade war
4 Malaysia has axed $22 billion of Chinese-backed projects, in a blow ...
5 China reaches 800 million internet users
6 China DEFIES Trump to buy nearly ALL oil imports from Iran despite ...
7 7 Signs that China's Military is Becoming More Dangerous
8 Asia markets trade mostly higher as investors look ahead to US ...
9 Can China, the world's biggest pork producer, contain a fatal pig ...
10 How China, India and the US use healthcare aid to win influence in ...
source
1 CNBC - 10 hours ago
2 WIRED - 13 hours ago
3 CNBC - 23 hours ago
4 Business Insider - 11 hours ago
5 TechCrunch - 10 hours ago
6 Express.co.uk - 12 hours ago
7 The National Interest Online (blog) - 16 hours ago
8 CNBC - 17 hours ago
9 Science Magazine - 5 hours ago
10 ABC News - 5 hours ago
url
1 https://www.cnbc.com/2018/08/21/china-official-refutes-trumps-claim-it-is-manipulating-the-yuan.html&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAggUKAAwAA&usg=AOvVaw1Muu65XvSSWVKX06-5syLY
2 https://www.wired.com/story/airbnb-china-market/&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAggdKAAwAQ&usg=AOvVaw0Py7bJDY3tIj4KxgwYot1A
3 https://www.cnbc.com/2018/08/21/china-economy-biggest-risk-may-be-property-market-not-trade-war.html&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAgggKAAwAg&usg=AOvVaw2EHMCQvFQV9ubu17ERCZFO
4 https://www.businessinsider.com/malaysia-axes-22-billion-of-belt-and-road-projects-blow-to-china-2018-8&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAggjKAAwAw&usg=AOvVaw1sMhG0tyUnj8j2W02gD3aW
5 https://techcrunch.com/2018/08/21/china-reaches-800-million-internet-users/&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAggsKAAwBA&usg=AOvVaw1ODs1JY8V_ETi24ugz-yNn
6 https://www.express.co.uk/news/world/1006297/Iran-oil-china-donald-trump-oil-prices-oil-price-us-iran-nuclear-deal-sanctions&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAggvKAAwBQ&usg=AOvVaw0r0HQNfZhEwfbiEocUC74Z
7 https://nationalinterest.org/blog/buzz/7-signs-chinas-military-becoming-more-dangerous-29352&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAgg1KAAwBg&usg=AOvVaw2hpQQXrAm2HW158II7F1kG
8 https://www.cnbc.com/2018/08/21/asia-markets-us-china-trade-talks-in-focus.html&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAgg4KAAwBw&usg=AOvVaw2surM3fW-lLJDd9P-r7xJB
9 http://www.sciencemag.org/news/2018/08/can-china-world-s-biggest-pork-producer-contain-fatal-pig-virus-scientists-fear-worst&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAgg7KAAwCA&usg=AOvVaw3Lzvks6B0Un4IEgoMh86re
10 http://www.abc.net.au/news/2018-08-22/china-india-us-medical-diplomacy-in-the-pacific/10147632&sa=U&ved=0ahUKEwjakZ6At__cAhXjllQKHZEQA9E4ARCpAgg-KAAwCQ&usg=AOvVaw1Ogg8I6mUvDSCc9F90Usg4
summary
1 A senior official of China's central bank told a briefing on Tuesday that the yuan's exchange rate is set by the market, rebutting President Donald ...
2 China is littered with the virtual carcasses of startups that attempted to do business in the country and then gave up or were shut out.
3 China's hot real estate market remains a challenge for authorities trying to maintain stable economic growth in the face of trade tensions with ...
4 The projects were a $20 billion rail link and two gas pipelines worth $2.3 billion. All three were part of China's Belt and Road Initiative (BRI), a massive project ...
5 A new report [in Chinese] issued by the China Internet Network Information Center (CNNIC) put the number of people in China with access to ...
6 China is Iran's biggest oil customer and the shift shows the communist nation wants to keep buying Iranian crude oil despite US sanctions ...
7 Western media seized on a new Pentagon report that Chinese bombers are training to strike deep into the Western Pacific, including Guam, the ...
8 Chinese markets led gains on Tuesday in a mostly positive trading session across Asia, extending their upward climb from the previous day ...
9 As of today, ASF has been reported at sites in four provinces in China's northeast, thousands of kilometers apart. Containing the disease in a ...
10 China's 10,000-ton medical ship, the Peace Ark, has cut a broad arc through the Pacific, stopping off in Papua New Guinea, Vanuatu and Fiji ...
> getGoogleNews("China", 2)
[1] "http://www.google.com/search?hl=en&gl=kr&tbm=nws&authuser=0&q=China&start=2"
title
1 Airbnb Wants to Find a Home in China
2 China's biggest risk may be its property market — not the trade war
3 Malaysia has axed $22 billion of Chinese-backed projects, in a blow ...
4 China reaches 800 million internet users
5 China DEFIES Trump to buy nearly ALL oil imports from Iran despite ...
6 7 Signs that China's Military is Becoming More Dangerous
7 Asia markets trade mostly higher as investors look ahead to US ...
8 Can China, the world's biggest pork producer, contain a fatal pig ...
9 How China, India and the US use healthcare aid to win influence in ...
10 China Is Leading in Artificial Intelligence--and American Businesses ...
source
1 WIRED - 13 hours ago
2 CNBC - 23 hours ago
3 Business Insider - 11 hours ago
4 TechCrunch - 10 hours ago
5 Express.co.uk - 12 hours ago
6 The National Interest Online (blog) - 16 hours ago
7 CNBC - 17 hours ago
8 Science Magazine - 5 hours ago
9 ABC News - 5 hours ago
10 Inc.com - 16 hours ago
url
1 https://www.wired.com/story/airbnb-china-market/&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggUKAAwAA&usg=AOvVaw3M4FbZ71J-NVKHn3fHvYwZ
2 https://www.cnbc.com/2018/08/21/china-economy-biggest-risk-may-be-property-market-not-trade-war.html&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggXKAAwAQ&usg=AOvVaw3vieYvDvTlRzYkWncLgQfu
3 https://www.businessinsider.com/malaysia-axes-22-billion-of-belt-and-road-projects-blow-to-china-2018-8&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggaKAAwAg&usg=AOvVaw3JGNk2Lraivca0P1lS3CoY
4 https://techcrunch.com/2018/08/21/china-reaches-800-million-internet-users/&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggjKAAwAw&usg=AOvVaw2j4-NkfK_fNl8McD6WJjPa
5 https://www.express.co.uk/news/world/1006297/Iran-oil-china-donald-trump-oil-prices-oil-price-us-iran-nuclear-deal-sanctions&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggmKAAwBA&usg=AOvVaw0v1Lybg2SxcJoxVkP7sOx_
6 https://nationalinterest.org/blog/buzz/7-signs-chinas-military-becoming-more-dangerous-29352&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggsKAAwBQ&usg=AOvVaw1B7Krdzgd3LQEJ4bwWSSFW
7 https://www.cnbc.com/2018/08/21/asia-markets-us-china-trade-talks-in-focus.html&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggvKAAwBg&usg=AOvVaw0v734CDRel2Vpke9XVjLqA
8 http://www.sciencemag.org/news/2018/08/can-china-world-s-biggest-pork-producer-contain-fatal-pig-virus-scientists-fear-worst&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAggyKAAwBw&usg=AOvVaw1j6E7a1jk9JiIahN5pdmi7
9 http://www.abc.net.au/news/2018-08-22/china-india-us-medical-diplomacy-in-the-pacific/10147632&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAgg1KAAwCA&usg=AOvVaw2E0qGfLhOkKZWhh5-_Is54
10 https://www.inc.com/magazine/201809/amy-webb/china-artificial-intelligence.html&sa=U&ved=0ahUKEwi1y7KAt__cAhWpilQKHZQXBi04AhCpAgg4KAAwCQ&usg=AOvVaw1thfiF9hJWhz88BU8znvnD
summary
1 China is littered with the virtual carcasses of startups that attempted to do business in the country and then gave up or were shut out.
2 China's hot real estate market remains a challenge for authorities trying to maintain stable economic growth in the face of trade tensions with ...
3 The projects were a $20 billion rail link and two gas pipelines worth $2.3 billion. All three were part of China's Belt and Road Initiative (BRI), a massive project ...
4 A new report [in Chinese] issued by the China Internet Network Information Center (CNNIC) put the number of people in China with access to ...
5 China is Iran's biggest oil customer and the shift shows the communist nation wants to keep buying Iranian crude oil despite US sanctions ...
6 Western media seized on a new Pentagon report that Chinese bombers are training to strike deep into the Western Pacific, including Guam, the ...
7 Chinese markets led gains on Tuesday in a mostly positive trading session across Asia, extending their upward climb from the previous day ...
8 As of today, ASF has been reported at sites in four provinces in China's northeast, thousands of kilometers apart. Containing the disease in a ...
9 China's 10,000-ton medical ship, the Peace Ark, has cut a broad arc through the Pacific, stopping off in Papua New Guinea, Vanuatu and Fiji ...
10 Living in China in the early 2000s changed my perspective. I saw firsthand that the outside world's view--China was good at copying but bad at ...
>