效果

 

demo.txt

1,text-1,10
2,text-2,20
3,text-3,30

pom

<?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>csdn.nio4444</groupId>
<artifactId>flink-demo01</artifactId>
<version>1.0-SNAPSHOT</version>
    &