flink_初识01

1.flink wordcount

package flink

import org.apache.flink.api.scala._
import org.apache.flink.core.fs.FileSystem.WriteMode
import org.apache.flink.streaming.api.scala.{DataStream, StreamExecutionEnvironment}


object FlinkDemo {
  def main(args: Array[String]): Unit = {

    val env = StreamExecutionEnvironment.getExecutionEnvironment
    //source
    val text: DataStream[String] = env.readTextFile("file:///E:\\sparkproject\\src\\test\\data\\flink.txt")
    //transaction
    val result = text
      .flatMap { x => x.split("\s") }
      .map { x => (x, 1) }
      .keyBy(0)
      .sum(1)
    //sink
    result.setParallelism(1).print()
    result.writeAsText("file:///E:\\sparkproject\\src\\test\\data\\result.txt", WriteMode.OVERWRITE).setParallelism(1)
    env.execute("flink wordcount demo")
  }
}

pom文件

<?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>com.cnsuning.sparkproject</groupId>
    <artifactId>sparkcode</artifactId>
    <version>1.0-SNAPSHOT</version>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <scala.version>2.11.8</scala.version>
        <spark.version>2.1.0.9</spark.version>
        <spark.artifactId.version>2.11</spark.artifactId.version>
    </properties>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.apache.hive/hive-common -->
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-common</artifactId>
            <version>1.2.2</version>
        </dependency>

        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
            <type>jar</type>
        </dependency>

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.1</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.7</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
            <version>2.6.2</version>
        </dependency>
        <!--<dependency>-->
        <!--<groupId>mysql</groupId>-->
        <!--<artifactId>mysql-connector-java</artifactId>-->
        <!--<version>5.1.21</version>-->
        <!--</dependency>-->
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-core_2.11</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-streaming_2.11</artifactId>
            <version>2.1.0</version>
        </dependency>

        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-streaming-kafka-0-8_2.11</artifactId>
            <version>2.1.0</version>
        </dependency>
        <!--<dependency>-->
        <!--<groupId>com.google.code.gson</groupId>-->
        <!--<artifactId>gson</artifactId>-->
        <!--<version>2.8.2</version>-->
        <!--</dependency>-->

        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql_2.11</artifactId>
            <version>2.1.0</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.29</version>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-hive_2.11</artifactId>
            <version>2.1.0</version>
            <!--<scope>provided</scope>-->
        </dependency>
        <!--flink dependency-->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-java</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-streaming-java_2.11</artifactId>
            <version>1.6.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.flink/flink-core -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-core</artifactId>
            <version>1.6.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.flink/flink-cep -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-cep_2.11</artifactId>
            <version>1.6.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-clients_2.11</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-wikiedits_2.11</artifactId>
            <version>1.6.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.flink/flink-streaming-scala -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-streaming-scala_2.11</artifactId>
            <version>1.6.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.flink/flink-connector-kafka-0.9 -->
        <!-- https://mvnrepository.com/artifact/org.apache.flink/flink-connector-kafka-0.11 -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-kafka-0.11_2.11</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-scala_2.11</artifactId>
            <version>1.6.1</version>
            <!--<scope>provided</scope>-->
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table_2.11</artifactId>
            <version>1.6.1</version>
            <scope>provided</scope>
        </dependency>

        <!--hbase dependency-->
        <!--<dependency>-->
        <!--<groupId>org.apache.hbase</groupId>-->
        <!--<artifactId>hbase</artifactId>-->
        <!--<version>0.98.8-hadoop2</version>-->
        <!--<type>pom</type>-->
        <!--</dependency>-->
        <!--<dependency>-->
        <!--<groupId>org.apache.hbase</groupId>-->
        <!--<artifactId>hbase-client</artifactId>-->
        <!--<version>0.98.8-hadoop2</version>-->
        <!--</dependency>-->
        <!--<dependency>-->
        <!--<groupId>org.apache.hbase</groupId>-->
        <!--<artifactId>hbase-common</artifactId>-->
        <!--<version>0.98.8-hadoop2</version>-->
        <!--</dependency>-->
        <!--<dependency>-->
        <!--<groupId>org.apache.hbase</groupId>-->
        <!--<artifactId>hbase-server</artifactId>-->
        <!--<version>0.98.8-hadoop2</version>-->
        <!--</dependency>-->
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch-spark-20_${spark.artifactId.version}</artifactId>
            <version>6.7.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.elasticsearch/elasticsearch -->
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>1.8</version>
                <executions>
                    <execution>
                        <id>add-source</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>add-source</goal>
                        </goals>
                        <configuration>
                            <sources>
                                <source>src/main/scala</source>
                                <source>src/test/scala</source>
                            </sources>
                        </configuration>
                    </execution>
                    <execution>
                        <id>add-test-source</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>add-test-source</goal>
                        </goals>
                        <configuration>
                            <sources>
                                <source>src/test/scala</source>
                            </sources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.scala-tools</groupId>
                <artifactId>maven-scala-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>add-source</goal>
                            <goal>testCompile</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <scalaVersion>2.11.8</scalaVersion>
                    <sourceDir>src/main/scala</sourceDir>
                    <jvmArgs>
                        <jvmArg>-Xms64m</jvmArg>
                        <jvmArg>-Xmx1024m</jvmArg>
                    </jvmArgs>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-release-plugin</artifactId>
                <version>2.5.3</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <configuration>
                    <skip>false</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.4.1</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <filters>
                                <filter>
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        org.apache.hive
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>
                            <minimizeJar>false</minimizeJar>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
            <resource>
                <directory>src/main/resources/${profiles.active}</directory>
            </resource>
        </resources>

        <!-- 修复 Plugin execution not covered by lifecycle configuration -->
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.eclipse.m2e</groupId>
                    <artifactId>lifecycle-mapping</artifactId>
                    <version>1.0.0</version>
                    <configuration>
                        <lifecycleMappingMetadata>
                            <pluginExecutions>
                                <pluginExecution>
                                    <pluginExecutionFilter>
                                        <groupId>org.codehaus.mojo</groupId>
                                        <artifactId>build-helper-maven-plugin</artifactId>
                                        <versionRange>[1.8,)</versionRange>
                                        <goals>
                                            <goal>add-source</goal>
                                            <goal>add-test-source</goal>
                                        </goals>
                                    </pluginExecutionFilter>
                                    <action>flink
                                        <ignore></ignore>
                                    </action>
                                </pluginExecution>

                                <pluginExecution>
                                    <pluginExecutionFilter>
                                        <groupId>org.scala-tools</groupId>
                                        <artifactId>maven-scala-plugin</artifactId>
                                        <versionRange>[1.8,)</versionRange>
                                        <goals>
                                            <goal>compile</goal>
                                            <goal>add-source</goal>
                                            <goal>testCompile</goal>
                                        </goals>
                                    </pluginExecutionFilter>
                                    <action>
                                        <ignore></ignore>
                                    </action>
                                </pluginExecution>
                            </pluginExecutions>
                        </lifecycleMappingMetadata>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>