web-crawler

问题 I am currently trying to extract the webgraph structure during my crawling run with Apache Nutch 1.13 and Solr 4.10.4. According to the documentation, the index-links plugin adds outlinks and inlinks to the collection. I have changed my collection in Solr accordingly (passed the respective fields in schema.xml and restarted Solr), as well as adapted the solr-mapping file, but to no avail. The resulting error can be seen below. bin/nutch index -D solr.server.url=http://localhost:8983/solr

问题 In this answer, @Andrej Kesely use the following code to remove unnecessary elements (ads, huge space,...) from html of this url. import requests from bs4 import BeautifulSoup url = 'https://www.collinsdictionary.com/dictionary/french-english/aimer' headers = {'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0'} soup = BeautifulSoup(requests.get(url, headers=headers).content, 'html.parser') for script in soup.select('script, .hcdcrt, #ad_contentslot_1,

问题 In this answer, @Andrej Kesely use the following code to remove unnecessary elements (ads, huge space,...) from html of this url. import requests from bs4 import BeautifulSoup url = 'https://www.collinsdictionary.com/dictionary/french-english/aimer' headers = {'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0'} soup = BeautifulSoup(requests.get(url, headers=headers).content, 'html.parser') for script in soup.select('script, .hcdcrt, #ad_contentslot_1,

问题 In this answer, @Andrej Kesely use the following code to remove unnecessary elements (ads, huge space,...) from html of this url. import requests from bs4 import BeautifulSoup url = 'https://www.collinsdictionary.com/dictionary/french-english/aimer' headers = {'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0'} soup = BeautifulSoup(requests.get(url, headers=headers).content, 'html.parser') for script in soup.select('script, .hcdcrt, #ad_contentslot_1,

问题 In this answer, @Andrej Kesely use the following code to remove unnecessary elements (ads, huge space,...) from html of this url. import requests from bs4 import BeautifulSoup url = 'https://www.collinsdictionary.com/dictionary/french-english/aimer' headers = {'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0'} soup = BeautifulSoup(requests.get(url, headers=headers).content, 'html.parser') for script in soup.select('script, .hcdcrt, #ad_contentslot_1,

问题 note : The page I am crawling dosen't use javascript till the point where I am right now. I have also tried using scrapy_splash but got the same error! and I have relied on this course for starting the spider. The issue: scrapy spider gives this error: raise TypeError('to_bytes must receive a str or bytes ' TypeError: to_bytes must receive a str or bytes object, got Selector What I want: The string as output which includes "some number of records". What I tried? This and this and such other

问题 note : The page I am crawling dosen't use javascript till the point where I am right now. I have also tried using scrapy_splash but got the same error! and I have relied on this course for starting the spider. The issue: scrapy spider gives this error: raise TypeError('to_bytes must receive a str or bytes ' TypeError: to_bytes must receive a str or bytes object, got Selector What I want: The string as output which includes "some number of records". What I tried? This and this and such other

问题 I want to simulate the 'click' action with the BeautifulSoup so that I can scrape the page returned. I tried selenium webdriver and BeautifulSoup, but I got an empty list every time. In the following code I copied the selector -- my last attempt, but it still doesn't work. # Scraping top products sales and name from the Recommendation page from selenium import webdriver from bs4 import BeautifulSoup as bs import json import requests import numpy as np import pandas as pd headers = { 'user

问题 I want to simulate the 'click' action with the BeautifulSoup so that I can scrape the page returned. I tried selenium webdriver and BeautifulSoup, but I got an empty list every time. In the following code I copied the selector -- my last attempt, but it still doesn't work. # Scraping top products sales and name from the Recommendation page from selenium import webdriver from bs4 import BeautifulSoup as bs import json import requests import numpy as np import pandas as pd headers = { 'user

问题 Hi complete newbie here so bear with me. Seems like a simple job but I can't seem to find an easy way to do this. So I need to extract a particular text from a webpage "www.example.com/index.php". I know that the text would be available in p tag with certain id. How do I extract this data out using javascript? What I'm trying currently is that I have my javascript file (trying.js) on my computer with the following code: $(document).ready(function () { $.get("www.example.com/index.php",