style: just test

dankal-test-kafka-protogenesis/src/test/java/cn/dankal/test/first/KafkaFirstConsumer.java

@@ -2,15 +2,17 @@ package cn.dankal.test.first;
 
 import cn.dankal.test.common.Const;
 import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.util.RandomUtil;
 import org.apache.kafka.clients.consumer.ConsumerConfig;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
 import org.apache.kafka.clients.consumer.ConsumerRecords;
 import org.apache.kafka.clients.consumer.KafkaConsumer;
-import org.apache.kafka.common.serialization.StringDeserializer;
+import org.apache.kafka.common.serialization.ByteArrayDeserializer;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
+import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.time.LocalDateTime;
 import java.util.Objects;
@@ -29,21 +31,23 @@ public class KafkaFirstConsumer {
     /**
      * KafkaConsumer
      */
-    private static KafkaConsumer<String, String> kafkaConsumer;
+    private static KafkaConsumer<byte[], byte[]> kafkaConsumer;
 
 
     @BeforeAll
     public static void before() {
         Properties properties = new Properties();
-        final String bootstrapServers = "192.168.128.3:9092,192.168.128.3:9093,192.168.128.3:9094";
+        final String bootstrapServers = "39.100.35.15:9092";
         // broker(Kafka服务器) 地址清单
         properties.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
         // message key 反序列化器
-        properties.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getCanonicalName());
+        properties.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, ByteArrayDeserializer.class.getCanonicalName());
         // message value 反序列化器
-        properties.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getCanonicalName());
+        properties.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, ByteArrayDeserializer.class.getCanonicalName());
+
+        properties.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
+        properties.put(ConsumerConfig.GROUP_ID_CONFIG, RandomUtil.randomString(12));
 
-        properties.put(ConsumerConfig.GROUP_ID_CONFIG, Const.Kafka.ConsumerGroupId.HELLO_CONSUMER_GROUP_ID);
 
         // 通过 Properties 配置 实例化 KafkaConsumer
         kafkaConsumer = new KafkaConsumer<>(properties);
@@ -55,18 +59,22 @@ public class KafkaFirstConsumer {
     @Test
     public void testKafkaFirstConsumer() {
         // consumer 订阅 主题
-        kafkaConsumer.subscribe(CollectionUtil.newArrayList(Const.Kafka.Topic.HELLO_TOPIC));
+        kafkaConsumer.subscribe(CollectionUtil.newArrayList("cdc-test"));
         while (true) {
-            ConsumerRecords<String, String> consumerRecords = kafkaConsumer.poll(Duration.ofMillis(500));
-            for (ConsumerRecord<String, String> consumerRecord : consumerRecords) {
-                System.out.printf(
-                        "%s 消息消息 ==> 主题: %s 分区: %s 偏移量: %s key: %s value: %s %n",
-                        Const.FULL_DATE_TIME_FORMATTER.format(LocalDateTime.now()),
-                        consumerRecord.topic(),
-                        consumerRecord.partition(),
-                        consumerRecord.offset(),
-                        consumerRecord.key(),
-                        consumerRecord.value());
+            ConsumerRecords<byte[], byte[]> consumerRecords = kafkaConsumer.poll(Duration.ofMillis(500));
+            for (ConsumerRecord<byte[], byte[]> consumerRecord : consumerRecords) {
+                String key = new String(consumerRecord.key(), StandardCharsets.UTF_8);
+                String value = new String(consumerRecord.value(), StandardCharsets.UTF_8);
+                if (key.contains("test_master") || value.contains("test_master")) {
+                    System.out.printf(
+                            "%s 消息消息 ==> 主题: %s 分区: %s 偏移量: %s key: %s value: %s %n",
+                            Const.FULL_DATE_TIME_FORMATTER.format(LocalDateTime.now()),
+                            consumerRecord.topic(),
+                            consumerRecord.partition(),
+                            consumerRecord.offset(),
+                            key,
+                            value);
+                }
             }
         }
     }