1、PV的案例代码展示
//利用spark程序统计运行商pv总量
object PV {
def main(args: Array[String]): Unit = {
// 1、创建sparkConf,设置appName和master
val sparkConf: SparkConf = new SparkConf().setAppName("PV").setMaster("local[2]")
// 2、创建sparkContext
val sc: SparkContext = new SparkContext(sparkConf)
//设置日志等级
sc.setLogLevel("WARN")
//3、读取日志数据
val dataRDD: RDD[String] = sc.textFile("E:\\data\\access.txt")
//4、统计PV
//方法一:
val dataOne: RDD[(String, Int)] = dataRDD.map(x=>("PV",1))
val result: RDD[(String, Int)] = dataOne.reduceByKey(_+_)
result.foreach(println)
//方法二:
println("方法二 PV总量: "+dataRDD.count())
sc.stop()
}
}
2、UV的案例代码展示
//利用spark程序统计运营商uv总量
object UV extends App{
//1、创建sparkConf,设置appName和master
val sparkConf: SparkConf = new SparkConf().setAppName("UV").setMaster("local[2]")
// 2、创建sparkContext
val sc: SparkContext = new SparkContext(sparkConf)
//设置日志等级
sc.setLogLevel("WARN")
//3、读取日志数据
val dataRDD: RDD[String] = sc.textFile("E:\\data\\access.txt")
// 4、切分每一行,获取对应的ip地址
val ips: RDD[String] = dataRDD.map(_.split(" ")(0))
// 5、去重
val ipNum: Long = ips.distinct().count()
//6、输出结果
println("总的UV量: "+ipNum)
sc.stop()
}
3、TopN的案例代码展示
object TopN extends App{
// 1、创建sparkConf,设置appName和master
val sparkConf: SparkConf = new SparkConf().setAppName("TopN").setMaster("local[2]")
// 2、创建sparkContext
val sc: SparkContext = new SparkContext(sparkConf)
//设置日志等级
sc.setLogLevel("WARN")
//3、读取日志数据
val dataRDD: RDD[String] = sc.textFile("E:\\data\\access.txt")
//4、过滤掉缺失的字段的记录,切分每一行 获取url, 每个url记为1
val urlAndOne: RDD[(String, Int)] = dataRDD.filter(_.split(" ").length>10).map(x=>(x.split(" ")(10),1))
//过滤 "-"
val urls: RDD[(String, Int)] = urlAndOne.filter(_._1.size>3)
// 5、相同url出现的次数累加
val result: RDD[(String, Int)] = urls.reduceByKey(_+_)
//6、访问url最多的排序
val resultSort: RDD[(String, Int)] = result.sortBy(_._2,false)
// 7、取前五位
val finalResultSort: Array[(String, Int)] = resultSort.take(5)
//8、打印输出
finalResultSort.foreach(println)
sc.stop()
}
Pom.xml如下所示
<?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>Spark</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>18</maven.compiler.target>
<encoding>UTF-8</encoding>
<scala.version>2.11.8</scala.version>
<scala.compat.version>2.11</scala.compat.version>
<hadoop.version>2.7.4</hadoop.version>
<spark.version>2.0.2</spark.version>
</properties>
<dependencies>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scala.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>${spark.version}</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src/main/scala</sourceDirectory>
<testSourceDirectory>src/test/scala</testSourceDirectory>
<plugins>
<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>
<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>
资源如下:
access.txt
评论已关闭
暂无评论