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通過使用Flink DataStream Connectors 數(shù)據(jù)流連接器連接到RabbitMq消息隊(duì)列中間件,并提供數(shù)據(jù)流輸入與輸出操作;
示例環(huán)境
java.version: 1.8.xflink.version: 1.11.1rabbitMq:3.5.7
示例數(shù)據(jù)源 (項(xiàng)目碼云下載)
Flink 系例 之 搭建開發(fā)環(huán)境與數(shù)據(jù)
示例模塊 (pom.xml)
Flink 系例 之 DataStream Connectors 與 示例模塊
數(shù)據(jù)流輸入
DataStreamSource.java
package com.flink.examples.rabbitmq; import org.apache.flink.api.common.serialization.SimpleStringSchema; import org.apache.flink.streaming.api.datastream.DataStream; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; import org.apache.flink.streaming.connectors.rabbitmq.RMQSource; import org.apache.flink.streaming.connectors.rabbitmq.common.RMQConnectionConfig; /** * @Description 從MQ中獲取數(shù)據(jù)并輸出到DataStream流中 */ public class DataStreamSource { /** * 官方文檔:https://ci.apache.org/projects/flink/flink-docs-release-1.11/zh/dev/connectors/rabbitmq.html */ public static void main(String[] args) throws Exception { final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); RMQConnectionConfig connectionConfig = new RMQConnectionConfig.Builder() .setHost("127.0.0.1") .setPort(5672) .setUserName("admin") .setPassword("admin") .setVirtualHost("datastream") .build(); final DataStream<String> stream = env .addSource(new RMQSource<String>( connectionConfig, "test", true, new SimpleStringSchema())) .setParallelism(1); stream.print(); env.execute("flink rabbitMq source"); } }
數(shù)據(jù)流輸出
DataStreamSink.java
package com.flink.examples.rabbitmq; import org.apache.flink.api.common.serialization.SimpleStringSchema; import org.apache.flink.streaming.api.datastream.DataStream; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; import org.apache.flink.streaming.connectors.rabbitmq.RMQSink; import org.apache.flink.streaming.connectors.rabbitmq.common.RMQConnectionConfig; /** * @Description 將DataStream流中的數(shù)據(jù)輸出到rabbitMq隊(duì)列中 */ public class DataStreamSink { /** * 官方文檔:https://ci.apache.org/projects/flink/flink-docs-release-1.11/zh/dev/connectors/rabbitmq.html */ public static void main(String[] args) throws Exception { final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); RMQConnectionConfig connectionConfig = new RMQConnectionConfig.Builder() .setHost("127.0.0.1") .setPort(5672) .setUserName("admin") .setPassword("admin") .setVirtualHost("datastream") .build(); String [] words = new String[]{"props","student","build","name","execute"}; final DataStream<String> stream = env.fromElements(words); stream.addSink(new RMQSink<String>(connectionConfig,"test",new SimpleStringSchema())); env.execute("flink rabbitMq sink"); } }
數(shù)據(jù)展示
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