系列文章目录
通过Java+Selenium查询文章质量分
通过Java+Selenium查询某个博主的Top40文章质量分
文章目录
- 系列文章目录
- 前言
- 一、环境准备
- 二、查询某个博主的Top40文章
- 2.1、修改pom.xml配置
- 2.2、配置Chrome驱动
- 2.3、引入浏览器配置
- 2.4、设置无头模式
- 2.5、启动浏览器实例，添加配置信息
- 2.6、窗口设置
- 2.7、禁止加载图片设置
- 2.8、加载博主地址
- 2.9、加载文章列表
- 2.10、加载下一页
- 2.11、设置加载40条数据
- 2.12、成果
- 三、循环查询文章质量分
- 四、代码
- 总结
前言
大家好，我是青花，本篇给大家分享一下《通过Java+Selenium查询某个博主的Top40文章质量分》。
一、环境准备
浏览器：本篇使用的是Chrome
Chrome浏览器版本：113
Chrome驱动版本：113（Java爬虫第一篇）
Java版本：Jdk1.8
selenium版本： 4.9.1
二、查询某个博主的Top40文章
2.1、修改pom.xml配置
<!-- https://mvnrepository.com/artifact/org.jsoup/jsoup -->
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.11.3</version>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>4.9.1</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.10.1</version>
</dependency>
2.2、配置Chrome驱动
public final static String CHROMEDRIVERPATH = "/Users/apple/Downloads/chromedriver_mac64/chromedriver";
System.setProperty("webdriver.chrome.driver", SeleniumUtil.CHROMEDRIVERPATH );// chromedriver localPath
2.3、引入浏览器配置
WebDriver driver;
ChromeOptions chromeOptions = new ChromeOptions();
2.4、设置无头模式
chromeOptions.addArguments('--headless')
chromeOptions.addArguments("--remote-allow-origins=*");
2.5、启动浏览器实例，添加配置信息
driver = new ChromeDriver(chromeOptions);
2.6、窗口设置
chromeOptions.addArguments("–no-sandbox"); //--start-maximized
2.7、禁止加载图片设置
// 增加禁止加载图片的设置
HashMap<String, Object> prefs = new HashMap<>();
prefs.put("profile.default_content_settings", 2);
chromeOptions.setExperimentalOption("prefs", prefs);
chromeOptions.addArguments("blink-settings=imagesEnabled=false");//禁用图片
2.8、加载博主地址
String baseUrl = "https://blog.csdn.net/s445320?type=blog";
2.9、加载文章列表
//定位到文章列表
WebElement mainSelectE = driver.findElement(By.cssSelector("div.mainContent"));
2.10、加载下一页
模拟浏览器滚动条下拉，加载下一页数据
//加载下一页
JavascriptExecutor jsDriver = (JavascriptExecutor) driver;//将java中的driver强制转型为JS类型
jsDriver.executeScript("window.scrollTo(0, 50)");
jsDriver.executeScript("window.scrollTo(0, document.body.scrollHeight-20)");
SeleniumUtil.sleep(500);
jsDriver.executeScript("window.scrollTo(0, document.body.scrollHeight +1)");
SeleniumUtil.sleep(2000);
2.11、设置加载40条数据
// 获取Top40的数量
int topNum = 40;
//如果加载的数据超过或等于 要求的最大长度，返回现在已加载的数据
if( webElements.size() >= topNum ) {
for(WebElement element : webElements ){
System.out.println( element.getAttribute("href") );
blogUrlList.add(element.getAttribute("href"));
}
log.info("文章已读取 {} 条，最大限制 {} 条！" , webElements.size() , topNum);
break;
}
2.12、成果
00:44:50.693 [main] INFO com.kelvin.spiderx.service.CsdnQcService - csdnQcBySelenium start！
00:45:03.151 [main] INFO com.kelvin.spiderx.service.CsdnQcService - 文章已读取 40 条，最大限制 40 条！
00:45:03.151 [main] INFO com.kelvin.spiderx.service.CsdnQcService - blogUrlList size:40
00:45:03.294 [main] INFO com.kelvin.spiderx.service.CsdnQcService - blogUrlList:["https://blog.csdn.net/s445320/article/details/131347069","https://blog.csdn.net/s445320/article/details/131339468","https://blog.csdn.net/s445320/article/details/131339215","https://blog.csdn.net/s445320/article/details/131338267","https://blog.csdn.net/s445320/article/details/131336229","https://blog.csdn.net/s445320/article/details/131336089","https://blog.csdn.net/s445320/article/details/131333724","https://blog.csdn.net/s445320/article/details/131332238","https://blog.csdn.net/s445320/article/details/131290150","https://blog.csdn.net/s445320/article/details/131250793","https://blog.csdn.net/s445320/article/details/131212215","https://blog.csdn.net/s445320/article/details/131189920","https://blog.csdn.net/s445320/article/details/131156242","https://blog.csdn.net/s445320/article/details/131154914","https://blog.csdn.net/s445320/article/details/131150756","https://blog.csdn.net/s445320/article/details/131147965","https://blog.csdn.net/s445320/article/details/131132334","https://blog.csdn.net/s445320/article/details/131119648","https://blog.csdn.net/s445320/article/details/130951405","https://blog.csdn.net/s445320/article/details/130930596","https://blog.csdn.net/s445320/article/details/130928675","https://blog.csdn.net/s445320/article/details/130888590","https://blog.csdn.net/s445320/article/details/130888380","https://blog.csdn.net/s445320/article/details/130887969","https://blog.csdn.net/s445320/article/details/130887448","https://blog.csdn.net/s445320/article/details/130885855","https://blog.csdn.net/s445320/article/details/130840157","https://blog.csdn.net/s445320/article/details/130830753","https://blog.csdn.net/s445320/article/details/130826012","https://blog.csdn.net/s445320/article/details/130823776","https://blog.csdn.net/s445320/article/details/130822527","https://blog.csdn.net/s445320/article/details/130822065","https://blog.csdn.net/s445320/article/details/130820814","https://blog.csdn.net/s445320/article/details/130807205","https://blog.csdn.net/s445320/article/details/130800407","https://blog.csdn.net/s445320/article/details/130717739","https://blog.csdn.net/s445320/article/details/130690514","https://blog.csdn.net/s445320/article/details/130690100","https://blog.csdn.net/s445320/article/details/130635327","https://blog.csdn.net/s445320/article/details/130624259"]
00:45:03.296 [main] INFO com.kelvin.spiderx.service.CsdnQcService - 此博主有文章，开始解析文章质量分！
00:45:03.296 [main] INFO com.kelvin.spiderx.service.CsdnQcService - csdnQcBySelenium start！
---------- 省略解析过程
此博主质量分如下：
00:50:40.699 [main] INFO com.kelvin.spiderx.service.CsdnQcService - [{"title":"[Selenium] 通过Java+Selenium查询文章质量分","posttime":"- 青花锁 · 2023-06-23 08:42:36 -","score":"86","remark":"文章质量良好"},{"title":"【并发知识点】CAS的实现原理及应用","posttime":"- 青花锁 · 2023-06-22 11:55:48 -","score":"90","remark":"文章质量良好"},{"title":"【并发知识点】AQS的实现原理及应用","posttime":"- 青花锁 · 2023-06-22 11:35:53 -","score":"90","remark":"文章质量良好"},{"title":"简单介绍html/javascript、ajax应用","posttime":"- 青花锁 · 2023-06-22 10:18:01 -","score":"92","remark":"文章质量良好"},{"title":"[设计模式] OOP六大原则","posttime":"- 青花锁 · 2023-06-22 01:24:19 -","score":"89","remark":"文章质量良好"},{"title":"[Web前端] Servlet及应用","posttime":"- 青花锁 · 2023-06-22 01:07:56 -","score":"91","remark":"文章质量良好"},{"title":"【在线商城系统】数据来源-爬虫篇","posttime":"- 青花锁 · 2023-06-22 00:48:46 -","score":"87","remark":"文章质量良好"},{"title":"《项目实战》构建SpringCloud alibaba项目（三、构建服务方子工程store-user-service）","posttime":"- 青花锁 · 2023-06-21 18:20:46 -","score":"86","remark":"文章质量良好"},{"title":"《项目实战》构建SpringCloud alibaba项目（二、构建微服务鉴权子工程store-authority-service）","posttime":"- 青花锁 · 2023-06-19 17:24:53 -","score":"86","remark":"文章质量良好"},{"title":"《项目实战》使用JDBC手写分库","posttime":"- 青花锁 · 2023-06-16 17:56:03 -","score":"88","remark":"文章质量良好"},{"title":"《项目实战》构建SpringCloud alibaba项目（一、构建父工程、公共库、网关））","posttime":"- 青花锁 · 2023-06-15 20:41:46 -","score":"92","remark":"文章质量良好"},{"title":"《项目实战》 Jenkins 与 CICD、发布脚本","posttime":"- 青花锁 · 2023-06-13 15:53:46 -","score":"90","remark":"文章质量良好"},{"title":"《微服务实战》 第三十二章 微服务链路跟踪-sleuth zipkin","posttime":"- 青花锁 · 2023-06-11 18:41:09 -","score":"90","remark":"文章质量良好"},{"title":"《微服务实战》 第三十一章 ShardingSphere - ShardingSphere-JDBC","posttime":"- 青花锁 · 2023-06-11 18:25:34 -","score":"80","remark":"文章质量良好"},{"title":"《微服务实战》 第三十章 分布式事务框架seata TCC模式","posttime":"- 青花锁 · 2023-06-11 10:38:21 -","score":"89","remark":"文章质量良好"},{"title":"《微服务实战》 第二十九章 分布式事务框架seata AT模式","posttime":"- 青花锁 · 2023-06-11 10:23:44 -","score":"92","remark":"文章质量良好"},{"title":"《微服务实战》 第二十八章 分布式锁框架-Redisson","posttime":"- 青花锁 · 2023-06-09 17:55:59 -","score":"91","remark":"文章质量良好"},{"title":"【项目实战】一、Spring boot整合JWT、Vue案例展示用户鉴权","posttime":"- 青花锁 · 2023-06-09 09:06:43 -","score":"92","remark":"文章质量良好"},{"title":"《微服务实战》 第二十七章 CAS","posttime":"- 青花锁 · 2023-05-30 16:26:30 -","score":"87","remark":"文章质量良好"},{"title":"《微服务实战》 第二十六章 Java锁的分类","posttime":"- 青花锁 · 2023-05-29 17:28:47 -","score":"91","remark":"文章质量良好"},{"title":"《微服务实战》 第二十五章 Java多线程安全与锁","posttime":"- 青花锁 · 2023-05-29 16:07:53 -","score":"91","remark":"文章质量良好"},{"title":"《微服务实战》 第二十四章 Spring boot 操作 Redis","posttime":"- 青花锁 · 2023-05-26 15:58:06 -","score":"84","remark":"文章质量良好"},{"title":"《微服务实战》 第二十三章 Redis RDB AOF","posttime":"- 青花锁 · 2023-05-26 15:51:44 -","score":"87","remark":"文章质量良好"},{"title":"《微服务实战》 第二十一、二十二章 Redis发布订阅、事务；HyperLoglog基数统计","posttime":"- 青花锁 · 2023-05-26 15:37:14 -","score":"87","remark":"文章质量良好"},{"title":"《微服务实战》 第二十章 Redis连接指令 客户端指令 服务器指令","posttime":"- 青花锁 · 2023-05-26 15:23:09 -","score":"89","remark":"文章质量良好"},{"title":"《微服务实战》 第十九章 Redis key","posttime":"- 青花锁 · 2023-05-26 14:21:22 -","score":"85","remark":"文章质量良好"},{"title":"《微服务实战》 第十八章 Redis查看配置文件和数据类型","posttime":"- 青花锁 · 2023-05-26 14:13:58 -","score":"91","remark":"文章质量良好"},{"title":"《微服务实战》 第十七章 Redis下载与安装","posttime":"- 青花锁 · 2023-05-23 17:09:55 -","score":"85","remark":"文章质量良好"},{"title":"《微服务实战》 第十六章 Spring cloud stream应用","posttime":"- 青花锁 · 2023-05-23 15:17:00 -","score":"89","remark":"文章质量良好"},{"title":"《微服务实战》 第十五章 RabbitMQ 延迟队列","posttime":"- 青花锁 · 2023-05-23 11:35:33 -","score":"86","remark":"文章质量良好"},{"title":"《微服务实战》 第十四章 RabbitMQ应用","posttime":"- 青花锁 · 2023-05-23 11:25:54 -","score":"92","remark":"文章质量良好"},{"title":"Java爬虫第五篇：使用selenium、Jsoup 抓取bing搜索图片","posttime":"- 青花锁 · 2023-05-23 10:39:34 -","score":"13","remark":"文章过短"},{"title":"Java爬虫第四篇：使用selenium、Jsoup 抓取图片","posttime":"- 青花锁 · 2023-05-23 10:04:52 -","score":"13","remark":"文章过短"},{"title":"《微服务实战》 第十三章 JWT","posttime":"- 青花锁 · 2023-05-22 15:54:20 -","score":"92","remark":"文章质量良好"},{"title":"《微服务实战》 第十二章 Spring Cloud Alibaba Sentinel","posttime":"- 青花锁 · 2023-05-22 11:48:27 -","score":"92","remark":"文章质量良好"},{"title":"《微服务实战》 第十一章 Spring Cloud Alibaba nacos配置中心","posttime":"- 青花锁 · 2023-05-17 09:01:39 -","score":"88","remark":"文章质量良好"},{"title":"《微服务实战》 第九章 Gitlab使用","posttime":"- 青花锁 · 2023-05-15 18:54:13 -","score":"80","remark":"文章质量良好"},{"title":"《微服务实战》 第八章 Spring Cloud 之 Hystrix","posttime":"- 青花锁 · 2023-05-15 18:36:19 -","score":"91","remark":"文章质量良好"},{"title":"《微服务实战》 第七章 Spring Cloud 之 GateWay","posttime":"- 青花锁 · 2023-05-15 14:20:09 -","score":"92","remark":"文章质量良好"},{"title":"《微服务实战》 第六章 Spring Cloud 之 OpenFeign","posttime":"- 青花锁 · 2023-05-11 17:07:56 -","score":"90","remark":"文章质量良好"}]
00:50:40.693 [main] INFO com.kelvin.spiderx.service.CsdnQcService - csdnQcBySelenium end！
三、循环查询文章质量分
通过Java+Selenium查询文章质量分
查询文章质量分可见上述文章，在本章中对返回值，禁止图片加载做了优化。
备注： 后期针对查询质量分，可以多个查询页面共用一个driver。
并发情况下，可考虑driver池化技术，100篇文章分为N段，分别去作业，优化性能。
四、代码
```java
package com.kelvin.spiderx.service;
import com.google.gson.Gson;
import com.kelvin.spiderx.util.SeleniumUtil;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
/***
* @title CsdnQcService
* @desctption CSDN查询质量分
* @author LTF
* @create 2023/6/21 23:02
**/
@Slf4j
public class CsdnQcService {
@Data
class CsdnBlogInfo {
private String title;
private String posttime;
private String score;
private String remark;
}
/**
* 获取商品数据
* @throws IOException
*/
CsdnBlogInfo csdnQcBySelenium(String blogUrl) {
log.info("csdnQcBySelenium start！");
CsdnBlogInfo csdnBlogInfo = new CsdnBlogInfo();
System.setProperty("webdriver.chrome.driver", SeleniumUtil.CHROMEDRIVERPATH );// chromedriver localPath
ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.addArguments("--remote-allow-origins=*");
chromeOptions.addArguments("–no-sandbox"); //--start-maximized
// 增加禁止加载图片的设置
HashMap<String, Object> prefs = new HashMap<>();
prefs.put("profile.default_content_settings", 2);
chromeOptions.setExperimentalOption("prefs", prefs);
chromeOptions.addArguments("blink-settings=imagesEnabled=false");//禁用图片
WebDriver driver = new ChromeDriver(chromeOptions);
driver.get("https://www.csdn.net/qc");
SeleniumUtil.sleep(1000);
//定位到输入框
WebElement inputSelectE = driver.findElement(By.cssSelector("input.el-input__inner"));
//输入文字地址
inputSelectE.sendKeys(blogUrl);
SeleniumUtil.sleep(100);
//定位查询按钮
WebElement qcSelectE = driver.findElement(By.cssSelector("div.trends-input-box-btn"));
//点击查询按钮
qcSelectE.click();
SeleniumUtil.sleep(1000);
//获取右边区域 -- 文章质量分结果区域
WebElement mainSelectE = driver.findElement(By.cssSelector("div.csdn-body-right"));
//转化为Jsoup文档处理
Document doc = Jsoup.parse( mainSelectE.getAttribute("outerHTML") );
//获取文章标题
String title = doc.select("span.title").text();
if(!StringUtils.isEmpty(title)) {
csdnBlogInfo.setTitle(title);
}
//获取作者和发布时间
String posttime = doc.select("span.name").text();
if(!StringUtils.isEmpty(posttime)) {
csdnBlogInfo.setPosttime(posttime);
}
//获取质量分
String score = doc.select("p.img").text();
if(!StringUtils.isEmpty(score)) {
csdnBlogInfo.setScore(score);
}
//获取博文质量分建议
String remark = doc.select("p.desc").text();
if(!StringUtils.isEmpty(remark)) {
csdnBlogInfo.setRemark(remark);
}
//打印结果
log.info("文章标题:{} , 作者和发布时间:{} , 质量分:{} , 博文建议:{}" , title , posttime , score , remark );
driver.quit();
log.info("csdnQcBySelenium end！");
return csdnBlogInfo;
}
void allBlogQcDataBySelenium() {
String baseUrl = "https://blog.csdn.net/s445320?type=blog";
String qcUrl = "https://www.csdn.net/qc";
System.setProperty("webdriver.chrome.driver", SeleniumUtil.CHROMEDRIVERPATH );// chromedriver localPath
ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.addArguments("--remote-allow-origins=*");
chromeOptions.addArguments("–no-sandbox"); //--start-maximized
// 增加禁止加载图片的设置
HashMap<String, Object> prefs = new HashMap<>();
prefs.put("profile.default_content_settings", 2);
chromeOptions.setExperimentalOption("prefs", prefs);
chromeOptions.addArguments("blink-settings=imagesEnabled=false");//禁用图片
WebDriver driver = new ChromeDriver(chromeOptions);
driver.get(baseUrl);
SeleniumUtil.sleep(200);
//定位到文章列表
WebElement mainSelectE = driver.findElement(By.cssSelector("div.mainContent"));
boolean isEnd = false;
// 获取Top40的数量
int topNum = 40;
// 上一次读取的文章数
int prePoint = 0;
// 已读取的文章数量
int readNum = 0;
List<String> blogUrlList = new ArrayList<>();
List<WebElement> webElements = null;
while ( isEnd == false ) {
JavascriptExecutor jsDriver = (JavascriptExecutor) driver;//将java中的driver强制转型为JS类型
jsDriver.executeScript("window.scrollTo(0, 50)");
jsDriver.executeScript("window.scrollTo(0, document.body.scrollHeight-20)");
SeleniumUtil.sleep(500);
jsDriver.executeScript("window.scrollTo(0, document.body.scrollHeight +1)");
SeleniumUtil.sleep(2000);
webElements = mainSelectE.findElements(By.cssSelector("article.blog-list-box>a"));
// 如果上一次的文章数
// 等于 当前页面的文章数：文章已全部读取完
// 否则，继续加载下一页
if( webElements.size() == prePoint){
for(WebElement element : webElements ){
System.out.println( element.getAttribute("href") );
blogUrlList.add(element.getAttribute("href"));
}
log.info("文章已全部读取完");
break;
} else {
prePoint = webElements.size();
}
//如果加载的数据超过或等于 要求的最大长度，返回现在已加载的数据
if( webElements.size() >= topNum ) {
for(WebElement element : webElements ){
System.out.println( element.getAttribute("href") );
blogUrlList.add(element.getAttribute("href"));
}
log.info("文章已读取 {} 条，最大限制 {} 条！" , webElements.size() , topNum);
break;
}
}
log.info("blogUrlList size:{}" , blogUrlList.size());
log.info("blogUrlList:{}" , new Gson().toJson(blogUrlList) );
List<CsdnBlogInfo> csdnBlogInfoList = null;
if(CollectionUtils.isEmpty(blogUrlList)) {
log.info("此博主没有发表文章！");
} else {
log.info("此博主有文章，开始解析文章质量分！");
csdnBlogInfoList = new ArrayList<>();
for (String blogUrl : blogUrlList) {
try{
CsdnBlogInfo csdnBlogInfo = this.csdnQcBySelenium(blogUrl);
if( null != csdnBlogInfo ) {
csdnBlogInfoList.add(csdnBlogInfo);
}
} catch (Exception e) {
log.info("解析文章质量分失败,文章：{}" , blogUrl);
}
}
if(CollectionUtils.isEmpty(csdnBlogInfoList)) {
log.info("解析文章质量分失败！");
} else {
log.info("此博主质量分如下：");
log.info(new Gson().toJson(csdnBlogInfoList));
}
}
driver.quit();
log.info("读取数据完毕！the end!");
}
public static void main(String[] args) {
CsdnQcService csdnQcService = new CsdnQcService();
csdnQcService.allBlogQcDataBySelenium();
}
}
总结
通过Java+Selenium查询某个博主的Top40文章质量分至此结束，优化空间还有很大，以实现效果为主。
