Flink 系例 之 搭建开发环境与数据

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2020/09/21 09:57
阅读数 2.6K

本内容为后续系例示例的演示基础,所有相关示例、数据源、依赖均在此文内的工程与数据之上进行演示。后续如有变动,会在本文中变更。如有错误之处,敬请指出。

 示例环境

java.version: 1.8.x
flink.version: 1.11.1

创建工程

idea中创建项目,项目名称:flink-examples

pom.xml

<?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.flink.examples</groupId>
    <artifactId>flink-examples</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>stream</module>
        <module>connectors</module>
    </modules>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <flink.version>1.11.1</flink.version>
        <compiler.version>8</compiler.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-streaming-java_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-clients_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-api-java-bridge_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-planner-blink_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-planner_2.11</artifactId>
            <version>${flink.version}</version>
            <!--<scope>provided</scope>-->
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-json</artifactId>
            <version>${flink.version}</version>
            <!--<scope>test</scope>-->
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.6</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.11.1</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <encoding>UTF-8</encoding>
                    <source>${compiler.version}</source>
                    <target>${compiler.version}</target>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

项目分两个模块

flink-examples
|----connectors(中件间连接器示例模块)
|----examples(模拟电商订单数据并推送到kafka中,以及flink核心数据流处理客户端)
|----stream(数据流与算子、方法、窗口等示例模块)
|----tableapi(table&sql与中件间的使用示例模块)
|----web(获取flink算子计算后的存储结果,提供给前端展示模块)

connectors模块

pom.xml

<?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">
    <parent>
        <groupId>com.flink.examples</groupId>
        <artifactId>flink-examples</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>connectors</artifactId>

    <dependencies>
        <!-- Flink jdbc依赖 -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-jdbc_2.11</artifactId>
            <version>1.10.1</version>
        </dependency>

        <!-- mysql驱动包 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!-- kafka依赖 -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-kafka_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <!-- redis依赖 -->
        <dependency>
            <groupId>org.apache.bahir</groupId>
            <artifactId>flink-connector-redis_2.11</artifactId>
            <version>1.0</version>
        </dependency>
        <!-- rabbitMq依赖 -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-rabbitmq_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <!-- elasticsearch6依赖 -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-elasticsearch6_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-sql-connector-elasticsearch6_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
    </dependencies>

</project>

stream模块

pom.xml

<?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">
    <parent>
        <artifactId>flink-examples</artifactId>
        <groupId>com.flink.examples</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>stream</artifactId>
    <dependencies>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-common</artifactId>
            <version>${flink.version}</version>
            <!--<scope>provided</scope>-->
        </dependency>
    </dependencies>

</project>

项目全局示例图

示例数据类

后续所有算子演示的数据,均来自此类来提供公共数据。

import org.apache.flink.api.java.tuple.Tuple3;
import java.util.Arrays;
import java.util.List;

/**
 * @Description 公共示例数据
 */
public class DataSource {

    /**
     * 示例数据集合
     * Tuple3 是一个固定3个属性变量的实体类,分别用f0,f1,f2表示三个构造传参与变量
     * @return
     */
    public static List<Tuple3<String,String,Integer>> getTuple3ToList(){
        //Tuple3<f0,f1,f2> = Tuple3<姓名,性别(man男,girl女),年龄>
        return Arrays.asList(
                new Tuple3<>("张三", "man", 20),
                new Tuple3<>("李四", "girl", 24),
                new Tuple3<>("王五", "man", 29),
                new Tuple3<>("刘六", "girl", 32),
                new Tuple3<>("伍七", "girl", 18),
                new Tuple3<>("吴八", "man", 30)
        );
    }

}

源码下载

Gitee:https://gitee.com/omsgit/flink-examples

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