1.Apache Flink 1.12.0 wordcount

Apache Flink wordcount

java案例，scala案例，python案例

版本

操作系统：win10
JDK：1.8
Scala：2.11
Python：3.7.4
Flink：1.12.0

一、Batch Job(批量计算)

BatchAPI 一般用于离线计算

1 java wordcount

1 创建项目

我已经创建好，有需要的可以直接下载
https://github.com/m769963249/flink_test_java.git

git clone https://github.com/m769963249/flink_test_java.git

2 配置依赖

<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>4.0.0modelVersion>

    <groupId>com.testgroupId>
    <artifactId>flink_test_javaartifactId>
    <version>1.0-SNAPSHOTversion>
    <packaging>jarpackaging>

    <name>Flink Quickstart Jobname>
    <url>http://www.myorganization.orgurl>

    <properties>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <flink.version>1.12.0flink.version>
        <java.version>1.8java.version>
        <flink.scala.version>2.11flink.scala.version>
        <maven.compiler.source>${java.version}maven.compiler.source>
        <maven.compiler.target>${java.version}maven.compiler.target>
    properties>

    <repositories>
        <repository>
            <id>apache.snapshotsid>
            <name>Apache Development Snapshot Repositoryname>
            <url>https://repository.apache.org/content/repositories/snapshots/url>
            <releases>
                <enabled>falseenabled>
            releases>
            <snapshots>
                <enabled>trueenabled>
            snapshots>
        repository>
    repositories>

    <dependencies>
        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-coreartifactId>
            <version>${flink.version}version>
        dependency>

        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-streaming-scala_${flink.scala.version}artifactId>
            <version>${flink.version}version>
        dependency>

        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-scala_${flink.scala.version}artifactId>
            <version>${flink.version}version>
        dependency>

        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-tableartifactId>
            <version>${flink.version}version>
        dependency>

        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-table-commonartifactId>
            <version>${flink.version}version>
        dependency>

        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-table-api-scala_${flink.scala.version}artifactId>
            <version>${flink.version}version>
        dependency>

        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-table-planner_${flink.scala.version}artifactId>
            <version>${flink.version}version>
        dependency>

        
        <dependency>
            <groupId>org.apache.flinkgroupId>
            <artifactId>flink-clients_${flink.scala.version}artifactId>
            <version>${flink.version}version>
        dependency>

        


        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-log4j12artifactId>
            <version>1.7.7version>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <version>1.2.17version>
            <scope>runtimescope>
        dependency>
    dependencies>

    <build>
        <plugins>

            
            <plugin>
                <groupId>org.apache.maven.pluginsgroupId>
                <artifactId>maven-compiler-pluginartifactId>
                <version>3.1version>
                <configuration>
                    <source>${java.version}source>
                    <target>${java.version}target>
                configuration>
            plugin>

            
            
            <plugin>
                <groupId>org.apache.maven.pluginsgroupId>
                <artifactId>maven-shade-pluginartifactId>
                <version>3.0.0version>
                <executions>
                    
                    <execution>
                        <phase>packagephase>
                        <goals>
                            <goal>shadegoal>
                        goals>
                        <configuration>
                            <artifactSet>
                                <excludes>
                                    <exclude>org.apache.flink:force-shadingexclude>
                                    <exclude>com.google.code.findbugs:jsr305exclude>
                                    <exclude>org.slf4j:*exclude>
                                    <exclude>log4j:*exclude>
                                excludes>
                            artifactSet>
                            <filters>
                                <filter>
                                    
                                    <artifact>*:*artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SFexclude>
                                        <exclude>META-INF/*.DSAexclude>
                                        <exclude>META-INF/*.RSAexclude>
                                    excludes>
                                filter>
                            filters>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.test.StreamingJobmainClass>
                                transformer>
                            transformers>
                        configuration>
                    execution>
                executions>
            plugin>
        plugins>

        <pluginManagement>
            <plugins>

                
                <plugin>
                    <groupId>org.eclipse.m2egroupId>
                    <artifactId>lifecycle-mappingartifactId>
                    <version>1.0.0version>
                    <configuration>
                        <lifecycleMappingMetadata>
                            <pluginExecutions>
                                <pluginExecution>
                                    <pluginExecutionFilter>
                                        <groupId>org.apache.maven.pluginsgroupId>
                                        <artifactId>maven-shade-pluginartifactId>
                                        <versionRange>[3.0.0,)versionRange>
                                        <goals>
                                            <goal>shadegoal>
                                        goals>
                                    pluginExecutionFilter>
                                    <action>
                                        <ignore/>
                                    action>
                                pluginExecution>
                                <pluginExecution>
                                    <pluginExecutionFilter>
                                        <groupId>org.apache.maven.pluginsgroupId>
                                        <artifactId>maven-compiler-pluginartifactId>
                                        <versionRange>[3.1,)versionRange>
                                        <goals>
                                            <goal>testCompilegoal>
                                            <goal>compilegoal>
                                        goals>
                                    pluginExecutionFilter>
                                    <action>
                                        <ignore/>
                                    action>
                                pluginExecution>
                            pluginExecutions>
                        lifecycleMappingMetadata>
                    configuration>
                plugin>
            plugins>
        pluginManagement>
    build>

    
    
    
    <profiles>
        <profile>
            <id