Kafka消费者处理消息时可能会遇到各种异常。为了确保消费者能够正确处理这些异常,可以采取以下措施:
public void consumeMessage(ConsumerRecord<String, String> record) {
try {
// 处理消息的逻辑
} catch (Exception e) {
// 处理异常,例如记录日志、重试或发送消息到死信队列
log.error("Error consuming message: {}", e.getMessage());
}
}
public void consumeMessage(ConsumerRecord<String, String> record) {
try {
// 处理消息的逻辑
Thread.sleep(1000); // 设置1秒的超时时间
} catch (InterruptedException e) {
// 处理中断异常
Thread.currentThread().interrupt();
log.error("Error consuming message: {}", e.getMessage());
} catch (Exception e) {
// 处理其他异常
log.error("Error consuming message: {}", e.getMessage());
}
}
@Retryable(value = {Exception.class}, maxAttempts = 3, backoff = @Backoff(delay = 1000))
public void consumeMessage(ConsumerRecord<String, String> record) {
try {
// 处理消息的逻辑
} catch (Exception e) {
// 抛出异常,以便触发重试机制
throw new RuntimeException("Error consuming message", e);
}
}
public void consumeMessage(ConsumerRecord<String, String> record) {
try {
// 处理消息的逻辑
} catch (Exception e) {
// 将消息发送到死信队列
kafkaTemplate.send("dead-letter-topic", record);
}
}