本文整理汇总了Java中org.apache.kafka.common.serialization.DoubleDeserializer类的典型用法代码示例。如果您正苦于以下问题：Java DoubleDeserializer类的具体用法？Java DoubleDeserializer怎么用？Java DoubleDeserializer使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
DoubleDeserializer类属于org.apache.kafka.common.serialization包，在下文中一共展示了DoubleDeserializer类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: createDefaultMessageFormats
import org.apache.kafka.common.serialization.DoubleDeserializer; //导入依赖的package包/类
/**
* Creates default message formats.
*/
private void createDefaultMessageFormats() {
final Map<String, String> defaultFormats = new HashMap<>();
defaultFormats.put("Short", ShortDeserializer.class.getName());
defaultFormats.put("ByteArray", ByteArrayDeserializer.class.getName());
defaultFormats.put("Bytes", BytesDeserializer.class.getName());
defaultFormats.put("Double", DoubleDeserializer.class.getName());
defaultFormats.put("Float", FloatDeserializer.class.getName());
defaultFormats.put("Integer", IntegerDeserializer.class.getName());
defaultFormats.put("Long", LongDeserializer.class.getName());
defaultFormats.put("String", StringDeserializer.class.getName());
// Create if needed.
for (final Map.Entry<String, String> entry : defaultFormats.entrySet()) {
MessageFormat messageFormat = messageFormatRepository.findByName(entry.getKey());
if (messageFormat == null) {
messageFormat = new MessageFormat();
}
messageFormat.setName(entry.getKey());
messageFormat.setClasspath(entry.getValue());
messageFormat.setJar("n/a");
messageFormat.setDefaultFormat(true);
messageFormatRepository.save(messageFormat);
}
}
示例2: main
import org.apache.kafka.common.serialization.DoubleDeserializer; //导入依赖的package包/类
public static void main(String[] args) throws Exception {
args = new String[] { "kafka0:19092", "gender-amount", "group4", "consumer2" };
if (args == null || args.length != 4) {
System.err.println(
"Usage:\n\tjava -jar kafka_consumer.jar ${bootstrap_server} ${topic_name} ${group_name} ${client_id}");
System.exit(1);
}
String bootstrap = args[0];
String topic = args[1];
String groupid = args[2];
String clientid = args[3];
Properties props = new Properties();
props.put("bootstrap.servers", bootstrap);
props.put("group.id", groupid);
props.put("enable.auto.commit", "false");
props.put("key.deserializer", StringDeserializer.class.getName());
props.put("value.deserializer", DoubleDeserializer.class.getName());
props.put("max.poll.interval.ms", "300000");
props.put("max.poll.records", "500");
props.put("auto.offset.reset", "earliest");
KafkaConsumer<String, String> consumer = new KafkaConsumer<>(props);
consumer.subscribe(Arrays.asList(topic));
AtomicLong atomicLong = new AtomicLong();
while (true) {
ConsumerRecords<String, String> records = consumer.poll(100);
records.forEach(record -> {
System.out.printf("client : %s , topic: %s , partition: %d , offset = %d, key = %s, value = %s%n",
clientid, record.topic(), record.partition(), record.offset(), record.key(), record.value());
if (atomicLong.get() % 10 == 0) {
// consumer.commitSync();
}
});
}
}