flink程序本地运行：No ExecutorFactory found to execute the application

1.问题描述

在idea中运行flink job程序出现如下错误：

Exception in thread "main" java.lang.IllegalStateException: No ExecutorFactory found to execute the application.

at org.apache.flink.core.execution.DefaultExecutorServiceLoader.getExecutorFactory(DefaultExecutorServiceLoader.java:88)

at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:2085)

at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1983)

at org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:68)

at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1969)

at test.ReadTextDemo.main(ReadTextDemo.java:19)

2.问题分析

程序代码如下；

XML 复制代码

<dependencies>

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-streaming-java</artifactId>
            <version>${flink.version}</version>
        </dependency>


        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.12</version>
        </dependency>
</dependencies>

java 复制代码

package test;

import org.apache.flink.api.java.io.TextInputFormat;
import org.apache.flink.streaming.api.datastream.DataStreamSource;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;

/**
 * @Description
 * @Author XXX
 * @Date 2024/5/23
 * @Version 1.0
 */
public class ReadTextDemo {
    public static void main(String[] args) throws Exception {
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        TextInputFormat textInputFormat = new TextInputFormat(null);
        DataStreamSource<String> source = env.readFile(textInputFormat, "D:\\datatest\\readtext.txt");
        source.print();
        env.execute("readText test");
    }
}

代码比较简单，应该没问题，因此不用分析。

从报错信息可以看出，程序没有找到执行器工厂（ExecutorFactory）来执行应用程序中的任务，网上查询了下，出现该报错的原因有以下几个：

参考：no executorfactory found to execute the application_慕课手记

因为改flink 程序没有什么配置，因此可以排除1、3，那最有可能得原因就是2，缺少pom依赖，通过在flink官网可知：

所以应该是缺少flink-clients依赖，加上pom依赖，问题得到解决：

XML 复制代码

 <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-clients</artifactId>
            <version>${flink.version}</version>
</dependency>