Spark项目应用-电子商务大数据分析总结
一. 数据采集（要求至少爬取三千条记录，时间跨度超过一星期）数据采集到本地文件内容
爬取详见：python爬取京东评论
爬取了将近20000条数据，156个商品种类，用时2个多小时，期间中断数次
二、数据预处理：要求使用MapReduce或者kettle实现源数据的预处理，对大量的Json文件，进行清洗，以得到结构化的文本文件
在解析json时，处理了一部分，包括日期格式修改，数据格式转换等，在kettle中做去重、排序处理
三.数据统计：生成Hive用户评论数据
（1）在Hive创建一张表，用于存放清洗后的数据，表名为pinglun，（创建数据表SQL语句），创建成功导入数据截图：
使用presto查询，速度比hive快好几倍
需求1：分析用户使用移动端购买还是PC端购买，及移动端和PC端的用户比例，生成ismobilehive表，存储统计结果；
需求2：分析用户评论周期（收到货后，一般多久进行评论），生成dayssql表，存储统计结果；
需求3：分析会员级别（判断购买此商品的用户级别），生成userlevelname_out表，存储统计结果；
需求4：分析每天评论量，生成creationtime_out表，存储统计结果；
四.利用Sqoop进行数据迁移至Mysql数据库：
四个表导入mysql数据库中四个表截图
五.数据可视化：利用JavaWeb+Echarts完成数据图表展示过程
需求1：可视化展示截图
需求2：可视化展示截图
需求3：可视化展示截图
需求4：可视化展示截图
六.中文分词实现用户评价分析
（1）本节通过对商品评论表中的差评数据，进行分析，筛选用户差评点，以知己知彼。（筛选差评数据集截图）
基于TextRank算法进行关键词抽取
import json import jieba from jieba import analyse ll =[] # 引入TextRank关键词抽取接口 textrank = analyse.textrank with open('shoes283.json', 'r', encoding='utf-8') as f: data = json.load(f) for i in range(0, len(data)): ll.append(data[i]['content'].replace(',','，').replace('\n',';')) # 基于TextRank算法进行关键词抽取 keywords = textrank(' '.join(ll),topK=100) # 输出抽取出的关键词 for keyword in keywords: print(keyword + "/")
（2）利用 python 结巴分词实现用户评价信息中的中文分词及词频统计；（分词后截图）
主要利用jieba去除标点符号，停用词，单个字符等等
import csv import json import re import jieba ll =[] def regex_change(line): # 前缀的正则 username_regex = re.compile(r"^\d+::") # URL，为了防止对中文的过滤，所以使用[a-zA-Z0-9]而不是\w url_regex = re.compile(r""" (https?://)? ([a-zA-Z0-9]+) (\.[a-zA-Z0-9]+) (\.[a-zA-Z0-9]+)* (/[a-zA-Z0-9]+)* """, re.VERBOSE | re.IGNORECASE) # 剔除日期 data_regex = re.compile(u""" #utf-8编码 年 | 月 | 日 | (周一) | (周二) | (周三) | (周四) | (周五) | (周六) """, re.VERBOSE) # 剔除所有数字 decimal_regex = re.compile(r"[^a-zA-Z]\d+") # 剔除空格 space_regex = re.compile(r"\s+") regEx = "[\n”“|,，；;''/?! 。的了是]" # 去除字符串中的换行符、中文冒号、|，需要去除什么字符就在里面写什么字符 line = re.sub(regEx, "", line) line = username_regex.sub(r"", line) line = url_regex.sub(r"", line) line = data_regex.sub(r"", line) line = decimal_regex.sub(r"", line) line = space_regex.sub(r"", line) return line with open('data/shoes156.json', 'r', encoding='utf-8') as f: data = json.load(f) for i in range(0, len(data)): ll.append(data[i]['content'].replace(',','，').replace('\n',';')) words = jieba.lcut(regex_change(' '.join(ll))) # 使用精确模式对文本进行分词 counts = {} # 通过键值对的形式存储词语及其出现的次数 for word in words: if word in "|,，；;''/?! 。：:" or len(word) == 1: # 单个词语不计算在内 continue else: counts[word] = counts.get(word, 0) + 1 # 遍历所有词语，每出现一次其对应的值加 1 items = list(counts.items()) # 将键值对转换成列表 items.sort(key=lambda x: x[1], reverse=True) # 根据词语出现的次数进行从大到小排序 a =[] b = [] for i in range(0,len(items)): #word, count = items[i] #b.append([list(items[i])[0],list(items[i])[1]]) print([list(items[i])[0],list(items[i])[1]]) with open("comments_jieba.txt", "a+", encoding='utf-8',newline='') as file: # 处理csv读写时不同换行符 linux:\n windows:\r\n mac:\r csv_file = csv.writer(file) csv_file.writerow([list(items[i])[0],list(items[i])[1]])
（3）在 hive 中新建词频统计表并加载分词数据；
①柱状图可视化展示用户差评的统计前十类
②用词云图可视化展示用户差评分词
七.利用Spark进行实时数据分析
本实验以京东商品评论为目标网站，架构采用爬虫+Flume+Kafka+Spark Streaming+Mysql，实现数据动态实时的采集、分析、展示数据。
具体工作流程如下图：
操作步骤截图
1.启动flume
flume配置文件
pro.sources = s1
pro.channels = c1
pro.sinks = k1
pro.sources.s1.type = exec
pro.sources.s1.command = tail -F /opt/a.log #日志文件
pro.channels.c1.type = memory
pro.channels.c1.capacity = 1000
pro.channels.c1.transactionCapacity = 100
pro.sinks.k1.type = org.apache.flume.sink.kafka.KafkaSink
pro.sinks.k1.kafka.topic = ct #需要启动这个topic
pro.sinks.k1.kafka.bootstrap.servers = node1:9092,node2:9092,node3:9092
pro.sinks.k1.kafka.flumeBatchSize = 20
pro.sinks.k1.kafka.producer.acks = 1
pro.sinks.k1.kafka.producer.linger.ms = 1
pro.sinks.k1.kafka.producer.compression.type = snappy
pro.sources.s1.channels = c1
pro.sinks.k1.channel = c1
启动：
bin/flume-ng agent --conf-file flume-kafka.conf --name pro -Dflume.root.logger=INFO,LOGFILE
2.启动kafka
#查看topic信息
/export/server/kafka/bin/kafka-topics.sh --list --zookeeper node1:2181
#删除topic
/export/server/kafka/bin/kafka-topics.sh --delete --zookeeper node1:2181 --topic edu
#创建topic
/export/server/kafka/bin/kafka-topics.sh --create --zookeeper node1:2181 --replication-factor 1 --partitions 3 --topic ct
#模拟消费者
/export/server/kafka/bin/kafka-console-consumer.sh --bootstrap-server node1:9092 --topic ct --from-beginning
3.编写爬虫向日志文件传输数据
代码：
# -*- coding: utf-8 -*- import gzip import urllib.request import json import time import random import demjson as dj import requests import itertools headers = { "Cookie": "__jdu=1507876332; shshshfpa=2ea021ee-52dd-c54e-1be1-f5aa9e333af2-1640075639; areaId=5; PCSYCityID=CN_0_0_0; shshshfpb=n7UymiTWOsGPvQfCup%2B3J1g%3D%3D; ipLoc-djd=5-142-42547-54561; jwotest_product=99; pinId=S4TjgVP4kjjnul02leqp07V9-x-f3wj7; pin=jd_60a1ab2940be3; unick=jd_60a1ab2940be3; ceshi3.com=000; _tp=672TNfWmOtaDFuqCPQqYycXMpi6F%2BRiwrhIuumNmoJ4%3D; _pst=jd_60a1ab2940be3; __jdc=122270672; shshshfp=4e8d45f57897e469586da47a0016f20e; ip_cityCode=142; CCC_SE=ADC_rzqTR2%2bUDTtHDYjJdX25PEGvHsBpPY%2bC9pRDVdNK7pU%2fwikRihpN3XEXZ1cn4Jd4w5OWdpJuduhBFwUvdeB6X1VFb7eIZkqL0OJvBn9RB6AJYo4An%2fGTiU%2b8rvqQwYxBI4QCM8a9w9kYQczygSjPxPjn1pbQLtBgo%2fzKBhwfKhAWs563NfBjmnRlkGHPX6E7jy6%2fEdfEhtkNSTCQod238cEpUFpKiQ%2bWV%2bW8MiaL3ti7d7ozdlNbZ03ylqRbI1XrXylDiqzW%2b2uALhF5H1eHuk3yH3t4ojXZmRbDy3k2OoZFk%2bcmrXD0eWhcIaD5RnhHbToYLuX%2byx7otaPuemTVAG4Z7CSyEfmUBAj7QuGmHg647a7KuoaR3hoCvxj%2f3woXdd2H9b40oqmJ5PO958Z1g%2fr7Jbk8a5w2CU547IaXRzakehLhW9xzG57Ak0Jhv85Jlt9A5N6hl%2ft4DSAwh%2bGhwg%3d%3d; unpl=JF8EAJJnNSttDBxWAxxSEkUVQg4EW1QKTx9TazcCAV8KSFICE1FIF0N7XlVdXhRKFR9vYhRUW1NPVA4ZBysSEXteVV1YCE0TAGlnNWRtW0tkBCsCHxMWQltTXF8LeycDZ2M1VFxZSlYGHQEbEBBCbWRbXQlKFQBpYQVQbVl7VTVZbEJTDBkCBxNdDEoRCmlgB1ZeaEpkBg; JSESSIONID=347F847A6818E35675648739BD4BA9FF.s1; __jda=122270672.1507876332.1640075637.1647251498.1647261295.13; thor=8D225D1673AA75681B9D3811417B0D325568BB2DD7F2729798D3AECF0428F59F7C70EA7504347F8E059F895AEE7D6E2662F565665845F0D94F2D7D56739CF3BC2B15F5F6E2ADDB891DDA80A9E9F88B7BA0BA95147512F78D28D8095E52379AB78550E451558DB6595C2270A1D5CFA2E211FF20F22ADA1987C6AE9E864DA6A7364D5BFD3EE08DA597D2EF2B37444CFD7A47134EFFD71B3A70B0C8BD55D51F274F; token=397b2c7c58f4021bbe9a9bbe9eeda694,3,915145; __tk=46fbcc7e51f75824dcdc2e8820904365,3,915145; shshshsID=5c5095f0b5728a839c0397308d625da5_1_1647261360535; __jdb=122270672.2.1507876332|13.1647261295; __jdv=122270672|jd.idey.cn|t_2024175271_|tuiguang|ef376a8f48ba48359a5a6d3c2769bb4b|1647261360584; 3AB9D23F7A4B3C9B=24HI5ARAA3SK7RJERTWUDZKA2NYJIXX3ING24VG466VC3ANKUALJLLD7VBYLQ3QPRYUSO3R6QBJYLVTVXBDIGJLGBA", "Accept": "*/*", "Accept-Encoding": "gzip, deflate, br", "Accept-Language": "zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6", "Connection": "keep-alive", "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36 Edg/99.0.1150.39" } headers2 = { "accept": "*/*", "accept-encoding": "gzip, deflate, br", "accept-language": "zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6", "cookie": "__jdu=1507876332; shshshfpa=2ea021ee-52dd-c54e-1be1-f5aa9e333af2-1640075639; areaId=5; PCSYCityID=CN_0_0_0; ipLoc-djd=5-142-42547-54561; pinId=S4TjgVP4kjjnul02leqp07V9-x-f3wj7; pin=jd_60a1ab2940be3; unick=jd_60a1ab2940be3; _tp=672TNfWmOtaDFuqCPQqYycXMpi6F%2BRiwrhIuumNmoJ4%3D; _pst=jd_60a1ab2940be3; user-key=a2aaf011-2c1e-4dea-bf76-3392d16b1fb1; __jdc=122270672; wlfstk_smdl=jlwwba2gmccq62touff9evvbp3fk8gbr; ceshi3.com=000; shshshfp=4e8d45f57897e469586da47a0016f20e; ip_cityCode=142; shshshfpb=n7UymiTWOsGPvQfCup%2B3J1g%3D%3D; joyya=1647305570.1647305909.27.0kop377; __jda=122270672.1507876332.1640075637.1647314039.1647318046.22; token=d5899471c4530886f6a9658cbea3ca94,3,915176; __tk=1570759a7dd1a720b0db2dec5df8d044,3,915176; CCC_SE=ADC_Wj0UWzuXioxsiUvbIxw9PbW9q011vNMASHkfjXFO%2fZlkeGDtZUHe5qgaEpWv8RDEkCruGSGmCItsvHjIZ3aHbh9heUjNIZh6WZl9ZDfDokk66kRX6I%2by%2bDsdf4JtPOQUuULSsWOA%2fcDyP7Bb91YuHOwNnciLtS97UIKO7XA5sAd34Rf4XDKijy6Fw1DFTx%2b7izzme6YALuLp9Y%2bByC6aUTDzU9te7g1BZXPXtfGGwqu52ZVkdVId2jpxPnhX24fFD9WI9aX1qgswZ1PPZSGYKswUkqXhIf2S9aLFkjXW2n61LVzw2ZeqJRQI8QIcmi%2fF7WHOHLbWScnKwG594WIk0SRiCa0n2aEJAhVlXmzEE%2f5%2f%2bXWsKhlneTLduVs52ST5m96zdx%2bLnNGgDERqznFNu3AT5zvLcN0PyVq08n4keSv2ngLLTZK4QQJslS4he9MT3XJoEUfe9L8beZNh1239eLHYF6w4KWMCWWTfwxdCUOY%3d; unpl=JF8EAJZnNSttDEhSAkwDE0dEGAoEWw8LSh9TbjRVXV5QHFIDGwMfGhd7XlVdXhRKFR9vYxRUXlNIUw4ZBysSEXteVV1YCE0TAGlnNWRtW0tkBCsCHxMWQltTXF8LeycDZ2M1VFxZSlYGGwcTEhhObWRbXQlKFQBpYQVQbVl7VTVNbBsTEUpcVVteDENaA2tmA11bX0lWBisDKxE; __jdv=122270672|jd.idey.cn|t_2024175271_|tuiguang|e276f09debfa4c209a0ba829f7710596|1647318395561; thor=8D225D1673AA75681B9D3811417B0D325568BB2DD7F2729798D3AECF0428F59F4C39726C44E930AA2DD868FC4BCA33EA0D52228F39A68FC9F5C1157433CAACF1110B20B6975502864453B70E6B21C0ED165B733359002643CD05BDBA37E4A673AF38CC827B6013BCB5961ADA022E57DB6811E99E10E9C4E6410D844CD129071F7646EC7CE120A0B3D2F768020B044A010452D9F8ABD67A59D41880DD1991935C; 3AB9D23F7A4B3C9B=24HI5ARAA3SK7RJERTWUDZKA2NYJIXX3ING24VG466VC3ANKUALJLLD7VBYLQ3QPRYUSO3R6QBJYLVTVXBDIGJLGBA; __jdb=122270672.5.1507876332|22.1647318046; shshshsID=d7a96097b296c895558adfd840546a72_5_1647318650562", "referer": "https://search.jd.com/" } def crawlProductComment(url): # 读取原始数据(注意选择gbk编码方式) try: req = requests.get(url=url, headers=headers2).text reqs = req.replace("fetchJSON_comment98(", "").strip(');') print(reqs) jsondata = json.loads(reqs) # 遍历商品评论列表 comments = jsondata['comments'] return comments except IOError: print("Error: gbk不合适") # 从原始数据中提取出JSON格式数据(分别以'{'和'}'作为开始和结束标志) def getProduct(url): ids = [] req = requests.get(url=url, headers=headers2).text reqs = req.replace("jQuery1544821(", "").strip(')') jsondata = json.loads(reqs)['291'] for i in range(0, len(jsondata)): ids.append(jsondata[i]['sku_id']) print(ids) return ids import paramiko #服务器信息，主机名（IP地址）、端口号、用户名及密码 hostname = "node1" port = 22 username = "root" password = "123456" client = paramiko.SSHClient() client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) client.connect(hostname, port, username, password, compress=True) sftp_client = client.open_sftp() remote_file = sftp_client.open("/opt/a.log",'a+') # 文件路径 ids = [] for i in range(2,3): product_id = getProduct( "https://search-x.jd.com/Search?callback=jQuery1544821&area=5&enc=utf-8&keyword=%E7%94%B7%E5%A3%AB%E8%BF%90%E5%8A%A8%E9%9E%8B&adType=7&page="+str(i)+"&ad_ids=291%3A33&xtest=new_search&_=1647325621019") time.sleep(random.randint(1, 3)) ids.append(product_id) data = [] count = 0 for k in list(set(itertools.chain.from_iterable(ids))): for i in range(0, 100): url = 'https://club.jd.com/comment/productPageComments.action?callback=fetchJSON_comment98&productId=' + str( k) + '&score=0&sortType=5&page=' \ + str(i) + '&pageSize=10&isShadowSku=0&fold=1' comments = crawlProductComment(url) if len(comments) <= 0: break print(comments) remote_file.writelines(str(len(comments))+"\n") data.extend(comments) # 设置休眠时间 time.sleep(random.randint(1, 5)) print('-------', i) print("这是第{}类商品".format(count)) count += 1
kafka接收到数据并显示出来
4.sparkstreaming接收kafka数据并保存至mysql，动态存储
代码：
package cn.itcast.edu.analysis.streaming import org.apache.kafka.clients.consumer.ConsumerRecord import org.apache.kafka.common.serialization.StringDeserializer import org.apache.spark.streaming.dstream.{DStream, InputDStream} import org.apache.spark.streaming.kafka010.{ConsumerStrategies, KafkaUtils, LocationStrategies} import org.apache.spark.{HashPartitioner, SparkConf, SparkContext} import org.apache.spark.streaming.{Seconds, StreamingContext} import java.sql.{Connection, DriverManager} import java.text.SimpleDateFormat import java.util.Date /** * Author itcast * Desc Direct模式连接Kafka消费数据 */ object Streaming { def main(args: Array[String]): Unit = { //TODO 0.准备环境 val conf: SparkConf = new SparkConf().setAppName("spark").setMaster("local[*]") val sc: SparkContext = new SparkContext(conf) sc.setLogLevel("WARN") //the time interval at which streaming data will be divided into batches val ssc: StreamingContext = new StreamingContext(sc,Seconds(5))//每隔5s划分一个批次 ssc.checkpoint("./ckp") //TODO 1.加载数据-从Kafka val kafkaParams = Map[String, Object]( "bootstrap.servers" -> "node1:9092",//kafka集群地址 "key.deserializer" -> classOf[StringDeserializer],//key的反序列化规则 "value.deserializer" -> classOf[StringDeserializer],//value的反序列化规则 "group.id" -> "ct",//消费者组名称 //earliest:表示如果有offset记录从offset记录开始消费,如果没有从最早的消息开始消费 //latest:表示如果有offset记录从offset记录开始消费,如果没有从最后/最新的消息开始消费 //none:表示如果有offset记录从offset记录开始消费,如果没有就报错 "auto.offset.reset" -> "latest", "auto.commit.interval.ms"->"5000",//自动提交的时间间隔 "enable.auto.commit" -> (true: java.lang.Boolean)//是否自动提交 ) val topics = Array("ct")//要订阅的主题 //使用工具类从Kafka中消费消息 val kafkaDS: InputDStream[ConsumerRecord[String, String]] = KafkaUtils.createDirectStream[String, String]( ssc, LocationStrategies.PreferConsistent, //位置策略,使用源码中推荐的 ConsumerStrategies.Subscribe[String, String](topics, kafkaParams) //消费策略,使用源码中推荐的 ) //TODO 2.处理消息 val infoDS: DStream[Int] = kafkaDS.map(record => { val nowDate = new Date() val strDate: String = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(nowDate) val value: String = record.value() Class.forName("com.mysql.jdbc.Driver") //获取mysql连接 val conn: Connection = DriverManager.getConnection("jdbc:mysql://node3:3306/edu?useUnicode=true&characterEncoding=utf-8", "root", "123456") //把数据写入mysql try { val sql: String = "insert into spider(spider_time,number)values('" + strDate + "','" + value.toInt + "')" conn.prepareStatement(sql).executeUpdate() } finally { conn.close() } value.toInt }) //TODO 3.输出结果 infoDS.print() //TODO 4.启动并等待结束 ssc.start() ssc.awaitTermination()//注意:流式应用程序启动之后需要一直运行等待手动停止/等待数据到来 //TODO 5.关闭资源 ssc.stop(stopSparkContext = true, stopGracefully = true)//优雅关闭 } }
pom.xml配置
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>cn.itcast</groupId> <artifactId>dataproject</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>dataproject Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> <scala.version>2.12.11</scala.version> <spark.version>3.0.3</spark.version> <hadoop.version>3.1.4</hadoop.version> </properties> <repositories> <repository> <id>aliyun</id> <url>https://maven.aliyun.com/nexus/content/groups/public/</url> </repository> <repository> <id>apache</id> <url>https://repository.apache.org/content/repositories/snapshots/</url> </repository> <repository> <id>cloudera</id> <url>https://repository.cloudera.com/artifactory/cloudera-repos/</url> </repository> </repositories> <dependencies> <!--依赖Scala语言--> <dependency> <groupId>org.scala-lang</groupId> <artifactId>scala-library</artifactId> <version>${scala.version}</version> </dependency> <!--SparkCore依赖--> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-core_2.12</artifactId> <version>${spark.version}</version> </dependency> <!-- spark-streaming--> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-streaming_2.12</artifactId> <version>${spark.version}</version> </dependency> <!--spark-streaming+Kafka依赖--> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-streaming-kafka-0-10_2.12</artifactId> <version>${spark.version}</version> </dependency> <!--SparkSQL依赖--> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-sql_2.12</artifactId> <version>${spark.version}</version> </dependency> <!--SparkSQL+ Hive依赖--> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-hive_2.12</artifactId> <version>${spark.version}</version> </dependency> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-hive-thriftserver_2.12</artifactId> <version>${spark.version}</version> </dependency> <!--StructuredStreaming+Kafka依赖--> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-sql-kafka-0-10_2.12</artifactId> <version>${spark.version}</version> </dependency> <!-- SparkMlLib机器学习模块,里面有ALS推荐算法--> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-mllib_2.12</artifactId> <version>${spark.version}</version> </dependency> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-client</artifactId> <version>2.7.5</version> </dependency> <dependency> <groupId>com.hankcs</groupId> <artifactId>hanlp</artifactId> <version>portable-1.7.7</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.22</version> </dependency> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.47</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.2</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-sql_2.12</artifactId> <version>3.0.3</version> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>2.8.2</version> </dependency> </dependencies> <build> <sourceDirectory>src/main/scala</sourceDirectory> <plugins> <!-- 指定编译java的插件 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.5.1</version> </plugin> <!-- 指定编译scala的插件 --> <plugin> <groupId>net.alchim31.maven</groupId> <artifactId>scala-maven-plugin</artifactId> <version>3.2.2</version> <executions> <execution> <goals> <goal>compile</goal> <goal>testCompile</goal> </goals> <configuration> <args> <arg>-dependencyfile</arg> <arg>${project.build.directory}/.scala_dependencies</arg> </args> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>2.18.1</version> <configuration> <useFile>false</useFile> <disableXmlReport>true</disableXmlReport> <includes> <include>**/*Test.*</include> <include>**/*Suite.*</include> </includes> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <version>2.3</version> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <filters> <filter> <artifact>*:*</artifact> <excludes> <exclude>META-INF/*.SF</exclude> <exclude>META-INF/*.DSA</exclude> <exclude>META-INF/*.RSA</exclude> </excludes> </filter> </filters> <transformers> <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> <mainClass></mainClass> </transformer> </transformers> </configuration> </execution> </executions> </plugin> </plugins> </build> </project>
5.可视化展示
动态显示爬取的评论数量，每5秒更新图像，这里就不展示了
