我需要从HTML页面的某个部分检索一些原始HTML 。
我编写了刮刀并抓取了相应的div,但它返回了一个标签贴图。
(:use [net.cgrand.enlive-html :as html])
(defn fetch-url [url]
(html/html-resource (java.net.URL. url)))
(defn parse-test []
(let [url "http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0000928/"
url-data (fetch-url url)
id "a693025"]
(first (html/select url-data [(keyword (str "#" id "-why"))]))))
输出:
{:tag :div, :attrs {:class "section", :id "a693025-why"}, :content ({:tag :h2, :attrs nil, :content ({:tag :span, :attrs {:class "title"}, :content ("Why is this medication prescribed?")})} {:tag :p, :attrs nil, :content ("Zolpidem is used to treat insomnia (difficulty falling asleep or staying asleep). Zolpidem belongs to a class of medications called sedative-hypnotics. It works by slowing activity in the brain to allow sleep.")})}
如何将其转换为原始html?我找不到任何有用的功能。
答案 0 :(得分:5)
(apply str (html/emit* [(parse-test)]))
; => "<div class=\"section\" id=\"a693025-why\"><h2><span class=\"title\">Why is this medication prescribed?</span></h2><p>Zolpidem is used to treat insomnia (difficulty falling asleep or staying asleep). Zolpidem belongs to a class of medications called sedative-hypnotics. It works by slowing activity in the brain to allow sleep.</p></div>"