B站抓弹幕小程序例子，一下看1千弹幕好爽哦

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老程序员演示68行代码抓视频弹幕，看弹幕再也不累了

大家我是B站UP主我是程序汪

演示一个抓弹幕的小程序

弹幕太多看的我眼花，我要抓下来

程序员多实践多写有意义的代码

比如弹幕里有人骂我，我秒秒钟从1千弹幕中

把他揪出来关小黑屋，哈哈哈。

maven配置

http工具、json工具

fastjson

httpclient

 <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>fastjson</artifactId>            <version>1.2.47</version>        </dependency>
<!--=====================http工具类================= begin-->        <dependency>            <groupId>commons-httpclient</groupId>            <artifactId>commons-httpclient</artifactId>            <version>3.0</version>        </dependency>        <!--=====================http工具类================= end-->

代码

这是java代码，你还可以php/C#/python都行


package http.b;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.JSONPath;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
/*** 我是程序汪  弹幕抓抓抓*/
public class BilibiliGrabData {public static String TMP_COOKIES="你自己浏览器的cookie";public static void main(String[] args) {HttpClient httpClient = new HttpClient();try {httpClient.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);for (int i = 0; i < 20; i++) {Thread.sleep(3000);System.out.println("开始抓数据 开始"+i+1+"数量"+50);getMessage(httpClient,i+1,50);}}catch (Exception e) {e.printStackTrace();}}private static void getMessage(HttpClient httpClient,int cursor,int limit) throws IOException {String dataUrl="https://api.bilibili.com/x/v2/dm/recent?pn="+cursor+"&ps="+limit;PostMethod postMethod=new PostMethod();GetMethod getMethod = new GetMethod(dataUrl);getMethod.setRequestHeader("cookie", TMP_COOKIES);postMethod.setRequestHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36");httpClient.executeMethod(getMethod);String text = getMethod.getResponseBodyAsString();JSONObject jsonObject=JSONObject.parseObject(text);System.out.println("总共记录:"+jsonObject.size());for (int i = 0; i <50 ; i++) {try {String content=JSONPath.eval(jsonObject,"$.data.result["+i+"].msg").toString();writeContent(content);System.out.println("弹幕:"+content);}catch (Exception e){System.out.println(e.getMessage());}}}public  static void  writeContent(String data){try{File file =new File("javaio-appendfile555.txt");if(!file.exists()){file.createNewFile();}FileWriter fileWritter = new FileWriter(file.getName(),true);BufferedWriter bw= new BufferedWriter(fileWritter);bw.write(data);bw.newLine();bw.flush();bw.close();System.out.println("Done");}catch(IOException e){e.printStackTrace();}}
}

下面是弹幕接口，返回的json

其实还有删除弹幕接口、评论消息接口等等，我不一一演示了

喜欢的我后面开发一个抓评论的，

可以抓4万条评论，目测我的评论总数1万不到

google 浏览器中json演示