主题：java 爬虫--爬取'阿里指数'网站的每个分类的top50 相关数据；
网站网址为：http://index.1688.com/alizs/top.htm?curType=offer&userType=purchaser&cat=7
需求：爬取数码电脑下的每个细分分类下的所有top50数据；
工具：使用selenium 爬取指定谷歌浏览器的内容；可进行可视化操作；
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.regex.Matcher;
import java.util.regex.Pattern; import org.apache.bcel.generic.Select;
import org.apache.commons.lang3.builder.ToStringStyle;
import org.apache.commons.logging.LogFactory;
import org.jsoup.Connection;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.phantomjs.PhantomJSDriver;
import org.openqa.selenium.phantomjs.PhantomJSDriverService;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait; import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.NicelyResynchronizingAjaxController;
import com.gargoylesoftware.htmlunit.ProxyConfig;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.WebClientOptions;
import com.gargoylesoftware.htmlunit.html.HtmlAnchor;
import com.gargoylesoftware.htmlunit.html.HtmlButton;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput; import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.text.SimpleDateFormat; public class AliZhiShu {
//日期格式
private static SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//PHANTOMJS驱动路劲
private static String PHANTOMJS_DRIVER = "D:/phantomjs-2.1.1-windows/bin/phantomjs.exe";
//文件位置
private static String path = null;
//文件位置
private static String path2 = null;
private static WebDriver driver = null;
private static int companyNameNum = 0;
//谷歌驱动器
private static String CHROME_DRIVER = "C:/Program Files (x86)/Google/Chrome/Application/chromedriver.exe"; //爬虫时模拟的浏览器请求头
private static String[] userAgent = {
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; AcooBrowser; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Acoo Browser; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506)",
"Mozilla/4.0 (compatible; MSIE 7.0; AOL 9.5; AOLBuild 4337.35; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
"Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)",
"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 2.0.50727; Media Center PC 6.0)",
"Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.0.3705; .NET CLR 1.1.4322)",
"Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30)",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN) AppleWebKit/523.15 (KHTML, like Gecko, Safari/419.3) Arora/0.3 (Change: 287 c9dfb30)",
"Mozilla/5.0 (X11; U; Linux; en-US) AppleWebKit/527+ (KHTML, like Gecko, Safari/419.3) Arora/0.6",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2pre) Gecko/20070215 K-Ninja/2.1.1",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/20080705 Firefox/3.0 Kapiko/3.0",
"Mozilla/5.0 (X11; Linux i686; U;) Gecko/20070322 Kazehakase/0.4.5",
"Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.8) Gecko Fedora/1.9.0.8-1.fc10 Kazehakase/0.5.6",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.20 (KHTML, like Gecko) Chrome/19.0.1036.7 Safari/535.20",
"Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; fr) Presto/2.9.168 Version/11.52",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.11 TaoBrowser/2.0 Safari/536.11",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.71 Safari/537.1 LBBROWSER",
"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; LBBROWSER)",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E; LBBROWSER)",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.84 Safari/535.11 LBBROWSER",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)",
"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; QQBrowser/7.0.3698.400)",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E)",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; SV1; QQDownload 732; .NET4.0C; .NET4.0E; 360SE)",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E)",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)",
"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
"Mozilla/5.0 (iPad; U; CPU OS 4_2_1 like Mac OS X; zh-cn) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5",
"Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:2.0b13pre) Gecko/20110307 Firefox/4.0b13pre",
"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:16.0) Gecko/20100101 Firefox/16.0",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11",
"Mozilla/5.0 (X11; U; Linux x86_64; zh-CN; rv:1.9.2.10) Gecko/20100922 Ubuntu/10.10 (maverick) Firefox/3.6.10",
"Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; SMJB; rv:11.0) like Gecko",
"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36",
"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:36.0) Gecko/20100101 Firefox/36.0"}; //主方法
public static void main(String[] args) throws UnsupportedEncodingException{
String url=null;
String urlWhole=null;
String category2=null;
WebElement search = null;
List<String> arr2=new ArrayList<>();
List<String> arrName2=new ArrayList<>();
List<String> arrName23=new ArrayList<>();
List<String> arr3=new ArrayList<>();
List<String> arrName3=new ArrayList<>();
Document doc = new AliZhiShu().connect("http://index.1688.com/alizs/top.htm?curType=offer&userType=purchaser&cat=7");
//将二级分类文件取出
Elements categoryTwo = doc.select("[class=selector cate-select fd-clr]").select("[data-key=-1]").select("a[data-key]");
int i=0;
for(Element e:categoryTwo){
//将二级分类名称取出
String categoryTwoName =categoryTwo.get(i).text();
//将二级分类id取出
String categoryTwoId = categoryTwo.get(i).attr("data-key");
url="http://index.1688.com/alizs/top.htm?curType=offer&userType=purchaser&cat=7"+","+categoryTwoId;
arr2.add(url);
arrName2.add(categoryTwoName);
i++;
} //将三级分类取出
for (int j = 0; j < arr2.size(); j++) {
Document doc1 = new AliZhiShu().connect(arr2.get(j));
Elements categoryThird = doc1.select("[class=selector cate-select fd-clr]").select("[data-key=-1]").select("a[data-key]");
for(int n=1; n < categoryThird.size();n++){
String categoryThirdName = categoryThird.get(n).text();
String categoryThirdId = categoryThird.get(n).attr("data-key");
urlWhole= arr2.get(j)+","+categoryThirdId;
arrName23.add(arrName2.get(j));
arr3.add(urlWhole);
arrName3.add(categoryThirdName);
}
} //输入每一个三级分类标签，爬虫
for (int j = 0; j < arr3.size(); j++) {
//搜索'最近30天'按钮，并点击
System.setProperty("webdriver.chrome.driver",CHROME_DRIVER);
driver = new ChromeDriver();
driver.get(arr3.get(j));
driver.findElement(By.xpath(".//*/input[@value='month']")).click();
//爬虫
new AliZhiShu().crawler(arr3.get(j),arrName23.get(j),arrName3.get(j));
waitTime(2000);
driver.quit();
}
}
//爬虫
public void crawler(String url,String arrName2,String arrName3) throws UnsupportedEncodingException{
String[] p = new String[10];
/**小区参数数组：p
* p[0]:三级分类链接
* p[1]:一级分类名称
* p[2]:二级分类名称
* p[3]:三级分类名称
* p[4]:产品链接
* p[5]:产品名称
* p[6]:价格
* p[7]:产品所属公司
* p[8]:交易指数
* p[9]:评价
**/
p[0] = url;
p[1] = "数码、电脑";
p[2] = arrName2;
p[3] = arrName3;
Document docDetail = new AliZhiShu().connect(url);
if(docDetail!=null){
Elements elementEach = docDetail.select("div[class=unit hot unfolded]").select(".item.fd-clr");
for(int i=0;i<elementEach.size();i++){
String elementUrl = elementEach.select("div[class=detail each]").select("p[class=title]").select("a").get(i).attr("href");
p[4] = elementUrl;
String elementName = elementEach.select("div[class=detail each]").select("p[class=title]").select("a").get(i).text();
p[5] = elementName;
String elementPrice = elementEach.select("div[class=detail each]").select("em[class=money]").get(i).text();
p[6] = elementPrice;
String elementCompany = elementEach.select("div[class=detail each]").select("p[class=com]").get(i).text();
p[7] = elementCompany;
String elementTrade = elementEach.select("p[class=first each]").get(i).text();
p[8] = elementTrade;
String elementEstimate = elementEach.select("p[class=second each]").get(i).text();
p[9] = elementEstimate;
exportFile(p[0] + "||"
+ p[1] + "||"
+ p[2] + "||"
+ p[3] + "||"
+ p[4] + "||"
+ p[5] + "||"
+ p[6] + "||"
+ p[7] + "||"
+ p[8] + "||"
+ p[9] ,new File("C:/Users/91911/Desktop/jieguo_alizhishu_new_20180724.txt"));
}
}
}
public static Document connect(String url){
if(url==null || url.equals("")) return null;
WebDriver webDriver = null;
try{
System.setProperty("webdriver.chrome.driver","C:/Program Files (x86)/Google/Chrome/Application/chromedriver.exe");
webDriver = new ChromeDriver();
webDriver.get(url);
//开始打开网页，等待输入元素出现
WebDriverWait wait = new WebDriverWait(webDriver,5);
wait.until(ExpectedConditions.presenceOfElementLocated(By.name("keywords")));
int tried = 5;
while(webDriver==null && tried>0){
waitTime(2000);
tried--;
}
}catch(Exception e){
//e.printStackTrace();
System.out.println("！连接网站超时");
} Document doc = null;
if(webDriver!=null) {
doc = Jsoup.parse(webDriver.getPageSource());
}
webDriver.quit();
return doc;
}
//等待
static public void waitTime(int time){
try {
Thread.sleep(time);
}catch(InterruptedException e) {
e.printStackTrace();
System.out.println("！进程被打断");
}
}
//写文件
public static void exportFile(String content,File file){
try {
FileWriter out = new FileWriter(file,true);
out.write(content + "\r\n");
out.flush();
out.close();
}catch (IOException e){
System.out.println("！IO异常，写文件异常");
}
}
}
爬取阿里指数页面的数码电脑分类下的每个分类（三级分类的）top50条内容；