flink sink

code/Flink/flink-kafka-integration/src/main/java/com/heibaiying/CustomSinkJob.java

@@ -1,7 +1,7 @@
 package com.heibaiying;
 
 import com.heibaiying.bean.Employee;
-import com.heibaiying.sink.FlinkToMySQL;
+import com.heibaiying.sink.FlinkToMySQLSink;
 import org.apache.flink.streaming.api.datastream.DataStreamSource;
 import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
 
@@ -17,7 +17,7 @@ public class CustomSinkJob {
                 new Employee("hei", 10, date),
                 new Employee("bai", 20, date),
                 new Employee("ying", 30, date));
-        streamSource.addSink(new FlinkToMySQL());
+        streamSource.addSink(new FlinkToMySQLSink());
         env.execute();
     }
 }

code/Flink/flink-kafka-integration/src/main/java/com/heibaiying/KafkaStreamingJob.java

@@ -20,7 +20,7 @@ public class KafkaStreamingJob {
 
         // 1.指定Kafka的相关配置属性
         Properties properties = new Properties();
-        properties.setProperty("bootstrap.servers", "192.168.200.229:9092");
+        properties.setProperty("bootstrap.servers", "192.168.200.0:9092");
 
         // 2.接收Kafka上的数据
         DataStream<String> stream = env
@@ -35,7 +35,9 @@ public class KafkaStreamingJob {
         };
         // 4. 定义Flink Kafka生产者
         FlinkKafkaProducer<String> kafkaProducer = new FlinkKafkaProducer<>("flink-stream-out-topic",
-                kafkaSerializationSchema, properties, FlinkKafkaProducer.Semantic.AT_LEAST_ONCE, 5);
+                kafkaSerializationSchema,
+                properties,
+                FlinkKafkaProducer.Semantic.AT_LEAST_ONCE, 5);
         // 5. 将接收到输入元素*2后写出到Kafka
         stream.map((MapFunction<String, String>) value -> value + value).addSink(kafkaProducer);
         env.execute("Flink Streaming");

code/Flink/flink-kafka-integration/src/main/java/com/heibaiying/sink/FlinkToMySQLSink.java

@@ -8,7 +8,7 @@ import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.PreparedStatement;
 
-public class FlinkToMySQL extends RichSinkFunction<Employee> {
+public class FlinkToMySQLSink extends RichSinkFunction<Employee> {
 
     private PreparedStatement stmt;
     private Connection conn;
@@ -16,7 +16,7 @@ public class FlinkToMySQL extends RichSinkFunction<Employee> {
     @Override
     public void open(Configuration parameters) throws Exception {
         Class.forName("com.mysql.cj.jdbc.Driver");
-        conn = DriverManager.getConnection("jdbc:mysql://192.168.200.229:3306/employees?characterEncoding=UTF-8&serverTimezone=UTC&useSSL=false", "root", "123456");
+        conn = DriverManager.getConnection("jdbc:mysql://192.168.0.229:3306/employees?characterEncoding=UTF-8&serverTimezone=UTC&useSSL=false", "root", "123456");
         String sql = "insert into emp(name, age, birthday) values(?, ?, ?)";
         stmt = conn.prepareStatement(sql);
     }