Java tutorial
/* * Copyright (C) 2015 hu * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package com.maoyan.pf.webcollector.spider; import cn.edu.hfut.dmic.webcollector.crawldb.DBManager; import cn.edu.hfut.dmic.webcollector.crawler.Crawler; import cn.edu.hfut.dmic.webcollector.fetcher.Executor; import cn.edu.hfut.dmic.webcollector.model.CrawlDatum; import cn.edu.hfut.dmic.webcollector.model.CrawlDatums; import cn.edu.hfut.dmic.webcollector.plugin.berkeley.BerkeleyDBManager; import org.apache.log4j.Level; import org.apache.log4j.Logger; import org.openqa.selenium.By; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.firefox.FirefoxDriver; import org.openqa.selenium.firefox.FirefoxProfile; import org.openqa.selenium.firefox.internal.ProfilesIni; import org.openqa.selenium.htmlunit.HtmlUnitDriver; import com.gargoylesoftware.htmlunit.BrowserVersion; import com.gargoylesoftware.htmlunit.WebClient; import com.gargoylesoftware.htmlunit.html.DomAttr; import com.gargoylesoftware.htmlunit.html.HtmlInput; import com.gargoylesoftware.htmlunit.html.HtmlPage; import com.mongodb.BasicDBObject; import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.MongoClient; import java.util.List; import java.util.NoSuchElementException; import java.util.Set; import java.util.concurrent.TimeUnit; /** * WebCollector?javascript?? * * @author hu */ public class MoviestoreCrawler { static { // ?Selenium Logger logger = Logger.getLogger("com.gargoylesoftware.htmlunit"); logger.setLevel(Level.OFF); } public static boolean doesWebElementExist(WebDriver driver, By selector) { try { driver.findElement(selector); return true; } catch (org.openqa.selenium.NoSuchElementException e) { return false; } } public static String ReturnString(WebDriver driver, By selector) { if (doesWebElementExist(driver, selector)) { return driver.findElement(selector).getText(); } else return null; } public static void main(String[] args) throws Exception { Executor executor = new Executor() { @Override public void execute(CrawlDatum datum, CrawlDatums next) throws Exception { MongoClient mongoClient = new MongoClient("127.0.0.1", 27017); Logger mongoLogger = Logger.getLogger("org.mongodb.driver"); mongoLogger.setLevel(Level.ERROR); // ? // DBCollection dbCollection = // mongoClient.getDB("maoyan_crawler").getCollection("rankings_am"); DB db = mongoClient.getDB("maoyan_crawler"); // ????? DBCollection dbCollection = db.getCollection("movie_store"); HtmlUnitDriver driver = new HtmlUnitDriver(); driver.setJavascriptEnabled(false); driver.get(datum.getUrl()); // System.out.println(driver.getPageSource()); System.out.println(driver.findElement(By.xpath("//html/body/header/h1")).getText()); // ProfilesIni pi = new ProfilesIni(); // FirefoxProfile profile = pi.getProfile("default"); // WebClient webClient = new // WebClient(BrowserVersion.FIREFOX_38); // driver.setJavascriptEnabled(false); // webClient.getOptions().setCssEnabled(true); // HtmlPage page = webClient.getPage(datum.getUrl()); // System.out.println(page.asXml()); // List<?> title = // page.getByXPath("//html/body/header/h1/text()"); // List<?> score = // page.getByXPath("//html/body/section[1]/article[1]/aside/hgroup/article[1]/i/text()"); // List<?> score_num = // page.getByXPath("//html/body/section[1]/article[1]/aside/hgroup/article[1]/span/text()"); // List<?> want_num = // page.getByXPath("//html/body/section[1]/article[1]/aside/hgroup/article[2]/i/text()"); // List<?> type = // page.getByXPath("//html/body/section[1]/article[1]/aside/p[1]/text()"); // List<?> timing = // page.getByXPath("//html/body/section[1]/article[1]/aside/p[2]/text()"); // List<?> system = // page.getByXPath("//html/body/section[1]/article[1]/aside/p[3]/text()"); // List<?> onscreendate = // page.getByXPath("//html/body/section[1]/article[1]/aside/p[4]/text()"); // List<?> total_rev = // page.getByXPath("//html/body/section[1]/article[2]/span[1]/text()"); // List<?> firstweek_rev = // page.getByXPath("//html/body/section[1]/article[2]/span[2]/text()"); // List<?> ahead_rev = // page.getByXPath("//html/body/section[1]/article[2]/span[3]/text()"); // List<?> director = // page.getByXPath("//*[@id='infoContent']/article[1]/div/div[1]/div/div[2]/div[1]/div[2]/text()"); // List<?> actor = // page.getByXPath("//*[@id='infoContent']/article[1]/div/div[1]/div/div[2]/div[2]/div[2]/text()"); // List<?> production = // page.getByXPath("//*[@id='infoContent']/article[2]/div/div[1]/div/div[2]/text()"); // List<?> distribution = // page.getByXPath("//*[@id='infoContent']/article[4]/div/div[1]/div/div[2]/text()"); // List<?> technique = // page.getByXPath("//*[@id='infoContent']/article[5]/div/div[1]/div/div[2]/text()"); // List<?> desc = // page.getByXPath("//*[@id='infoContent']/article[6]/div/div[2]/text()"); // List<?> want_by_city = // page.getByXPath("//*[@id='wantCity']/ul/li[2]/b/text()"); // List<?> want_val= // page.getByXPath("//*[@id='wantCity']/ul/li[3]/div/@style"); // System.out.println(title); //// System.out.println(page.getByXPath("//span[@class='today']/em/text()")); //// System.out.println(page.getByXPath("//span[@class='today']/text()")); //// List<?> movie_name = // page.getByXPath("//div[@id='seat_table']//ul//li[@class='c1 // lineDot']/text()"); //// List<?> boxoffice_rate = // page.getByXPath("//div[@id='seat_table']//ul//li[@class='c2 // red']/text()"); //// List<?> visit_pershow = // page.getByXPath("//div[@id='seat_table']//ul//li[@class='c3 // gray']/text()"); //// for(int i = 0;i<movie_name.size();i++){ //// System.out.println(movie_name.get(i)); //// System.out.println(boxoffice_rate.get(i)); //// System.out.println(visit_pershow.get(i)); //// } // List<?> hbList = page.getByXPath("//div"); // HtmlDivision hb = (HtmlDivision)hbList.get(0); // System.out.println(hb.toString()); // System.out.println(ReturnString(driver,By.xpath("//*[@id='infoContent']/article[4]/div/div[1]/div/div[2]"))); if (ReturnString(driver, (By.xpath("//html/body/header/h1"))).length() != 0) { BasicDBObject dbObject = new BasicDBObject(); dbObject.append("title", ReturnString(driver, (By.xpath("//html/body/header/h1")))) .append("url", driver.getCurrentUrl()) .append("score", ReturnString(driver, By.xpath( "//html/body/section[1]/article[1]/aside/hgroup/article[1]/i"))) .append("score_num", ReturnString(driver, By.xpath( "//html/body/section[1]/article[1]/aside/hgroup/article[1]/span"))) .append("want_num", ReturnString(driver, By.xpath( "//html/body/section[1]/article[1]/aside/hgroup/article[2]/i"))) .append("type", ReturnString(driver, By.xpath("//html/body/section[1]/article[1]/aside/p[1]"))) .append("timing", ReturnString(driver, By.xpath("//html/body/section[1]/article[1]/aside/p[2]"))) .append("system", ReturnString(driver, By.xpath("//html/body/section[1]/article[1]/aside/p[3]"))) .append("onscreendate", ReturnString(driver, By.xpath("//html/body/section[1]/article[1]/aside/p[4]"))) .append("total_rev", ReturnString(driver, By.xpath("//html/body/section[1]/article[2]/span[1]"))) .append("firstweek_rev", ReturnString(driver, By.xpath("//html/body/section[1]/article[2]/span[2]"))) .append("ahead_rev", ReturnString(driver, By.xpath("//html/body/section[1]/article[2]/span[3]"))) .append("director", ReturnString(driver, By.xpath( "//*[@id='infoContent']/article[@class='m-info-crews m-info-section']/div/div[1]/div/div[2]/div[1]/div[2]"))) .append("actor", ReturnString(driver, By.xpath( "//*[@id='infoContent']/article[@class='m-info-crews m-info-section']/div/div[1]/div/div[2]/div[2]/div[2]"))) .append("production", ReturnString(driver, By.xpath( "//*[@id='infoContent']/article[@class='production-companies m-info-section']/div/div[1]/div/div[2]"))) .append("jointproduction", ReturnString(driver, By.xpath( "//*[@id='infoContent']/article[@class='joint-production-companies m-info-section']/div/div[1]/div/div[2]"))) .append("distribution", ReturnString(driver, By.xpath( "//*[@id='infoContent']/article[@class='distribution-firm m-info-section']/div/div[1]/div/div[2]"))) .append("techpara", ReturnString(driver, By.xpath( "//*[@id='infoContent']/article[tech-params m-info-section]/div/div[1]/div/div[2]"))) .append("infodrama", ReturnString(driver, By.xpath( "//*[@id='infoContent']/article[m-info-drama m-info-section]/div/div[2]"))) .append("want_by_city", ReturnString(driver, By.xpath("//*[@id='wantCity']"))); dbCollection.insert(dbObject); driver.close(); driver.quit(); mongoClient.close(); } } }; MongoClient mongoClient = new MongoClient("127.0.0.1", 27017); // ? // DBCollection dbCollection = // mongoClient.getDB("maoyan_crawler").getCollection("rankings_am"); DB db = mongoClient.getDB("maoyan_crawler"); // ????? Set<String> colls = db.getCollectionNames(); for (String s : colls) { // Collection(?"") if (s.equals("movie_store")) { db.getCollection(s).drop(); } } // DBDBManager DBManager manager = new BerkeleyDBManager("maoyan"); // Crawler?DBManagerExecutor for (int round = 200; round < 300; round++) { System.out.println("Round " + round + " crawling.../n"); Crawler crawler = new Crawler(manager, executor); for (int i = 1 + 100 * round; i <= 100 + 100 * round; i++) { crawler.addSeed("http://pf.maoyan.com/movie/" + i + "?_v_=yes"); } /* ??visit */ crawler.setVisitInterval(50); /* ?http? */ crawler.setRetryInterval(100); crawler.setThreads(10); crawler.start(1); } } }