模拟几条数据流,写入到 MySQL中。 packageicu.wzk;importorg.apache.flink.configuration.Configuration;importorg.apache.flink.streaming.api.datastream.DataStreamSource;importorg.apache.flink.streaming.api.functions.sink.RichSinkFunction;importorg.apache.flink.streaming.api.scala.StreamExecutionEnvironment;importjava...
注意文件路径写法不用//stream.writeAsText("D:/flinkOutput01", FileSystem.WriteMode.OVERWRITE);stream.writeAsText("/usr/flink1.9/fileOutPut01", FileSystem.WriteMode.OVERWRITE);//保存到mysql测试stream.addSink(newSink2Mysql());/**计数式滑动窗口测试:countWindowAll(windowSize,slideSize...
public class TestCustomSinkToMysqlDemo { static void sinkToMysql() throws Exception { // env StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); env.setRuntimeMode(RuntimeExecutionMode.AUTOMATIC); // source DataStream<User> userDS = env.fromElements(new User(1, "...
这里的 source 是从 kafka 读取数据的,然后 Flink 从 Kafka 读取到数据(JSON)后用阿里 fastjson 来解析成 student 对象,然后在 addSink 中使用我们创建的 SinkToMySQL,这样就可以把数据存储到 MySQL 了。 package com.zhisheng.flink;import com.alibaba.fastjson.JSON;import com.zhisheng.flink.model.Student;impo...
行编码格式 (Row-encoded sink) 行编码格式需要指定一个Encoder。Encoder 负责为每个处于 In-progress 状态文件的OutputStream序列化数据。 除了桶分配器之外,RowFormatBuilder还允许用户指定: CustomRollingPolicy:自定义滚动策略以覆盖默认的 DefaultRollingPolicy ...
();StreamTableEnvironment ste=StreamTableEnvironment.create(env,settings);String ddl="CREATE TABLE flinksinksds(\r\n"+"componentname STRING,\r\n"+"componentcount INT,\r\n"+"componentsum INT\r\n"+") WITH(\r\n"+"'connector.type'='jdbc',\r\n"+"'connector.driver' = 'com.mysql.cj....
StreamTableEnvironment ste = StreamTableEnvironment.create(env, settings); String ddl = "CREATE TABLE flinksinksds(\r\n" + "componentname STRING,\r\n" + "componentcount INT,\r\n" + "componentsum INT\r\n" + ") WITH(\r\n" +
Search before asking I had searched in the issues and found no similar issues. Java Version No response Scala Version 2.12.x StreamPark Version 2.2.0 Flink Version 1.14.5 deploy mode None What happened flink sql CREATE TABLE datagen ( f_...
flink 将mysql作为Source和Sink的代码示例 1.maven导入 <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> 2.SourceFromMySQL工具类java代码 import org.apache.flink.configuration.Configuration;...
flink 将mysql作为Source和Sink的代码示例 1.maven导入 <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> 2.SourceFromMySQL工具类java代码 import org.apache.flink.configuration.Configuration;...