Web_BLSKafka_Server_Prod/消费/Program.cs

using BLWData.Entity;
using Confluent.Kafka;
using static Confluent.Kafka.ConfigPropertyNames;

namespace 消费
{
    internal class Program
    {
        static void Main(string[] args)
        {
            RunConsumers().Wait();
            Console.WriteLine("Hello, World!");
            Console.ReadKey();

        }



        //private const string TopicName = "firsttopic";
        private const string TopicName = "blwlog4BaoJing-rcu-udppackage-topic";
        private const string BootstrapServers = "43.138.217.154:9092";
        private const string GroupId = "parallel-consumer-group";
        private const int ConsumerCount = 3; // 启动3个消费者

        public static async Task RunConsumers()
        {
            var cts = new CancellationTokenSource();

            var consumers = new List<Task>();
            for (int i = 0; i < 1; i++)
            {
                consumers.Add(Task.Run(() => StartConsumer(cts.Token)));
            }

            await Task.WhenAll(consumers);

            //await StartConsumer(cts.Token);
        }

        private static async Task StartConsumer(CancellationToken cancellationToken)
        {
            //var config = new ConsumerConfig
            //{
            //    BootstrapServers = BootstrapServers,
            //    GroupId = GroupId,
            //    AutoOffsetReset = AutoOffsetReset.Earliest,
            //    SecurityProtocol = SecurityProtocol.SaslPlaintext,
            //    SaslMechanism = SaslMechanism.Plain,
            //    EnableAutoCommit = true, // 手动提交偏移量
            //    EnablePartitionEof = true,
            //    AllowAutoCreateTopics = true,
            //    SaslUsername = "aaa",
            //    SaslPassword = "aaa123"
            //};

            var config = new ConsumerConfig
            {
                GroupId = "laravel-consumer-kafka-group",
                AutoOffsetReset = AutoOffsetReset.Earliest,
                //BootstrapServers = BootstrapServers,
                BootstrapServers = "43.138.217.154:9092",
                SecurityProtocol = SecurityProtocol.SaslPlaintext,
                SaslMechanism = SaslMechanism.Plain,
                EnableAutoCommit = true, // 手动提交偏移量
                SaslUsername = "baojing",
                SaslPassword = "blwmaigong##2025"

            };

            var consumer = new ConsumerBuilder<string, byte[]>(config).Build();
            //var consumer = new ConsumerBuilder<string, byte[]>(config).SetErrorHandler((_, e) => Console.WriteLine($"消费者错误: {e.Reason}")).SetPartitionsAssignedHandler((c, partitions) =>
            //    {
            //        Console.WriteLine($"消费者分配到分区: {string.Join(", ", partitions)}");
            //    }).Build();
            consumer.Subscribe(TopicName);

            try
            {
                while (!cancellationToken.IsCancellationRequested)
                {
                    try
                    {
                        var consumeResult = consumer.Consume(cancellationToken);

                        var k = consumeResult.Message.Key;
                        var v = consumeResult.Message.Value;
                        EnergyConsumption ese = new EnergyConsumption();

                        if (k.Equals(""))
                        {

                        }
                        var SSA = EnergyConsumption.Parser.ParseFrom(v);
                        if (consumeResult.IsPartitionEOF)
                        {
                            Console.WriteLine($"消费者1到达分区末尾: {consumeResult.TopicPartitionOffset}");
                            continue;
                        }

                        Console.WriteLine($"消费者1收到消息: [分区{consumeResult.Partition}] " +
                                        $"偏移量{consumeResult.Offset}: {consumeResult.Message.Value}");

                        // 手动提交偏移量
                        //consumer.Commit(consumeResult);
                    }
                    catch (ConsumeException e)
                    {
                        Console.WriteLine($"消费者消费错误: {e.Error.Reason}");
                    }
                }
            }
            catch (Exception)
            {

            }
            finally
            {
                consumer.Close();
            }
            await Task.CompletedTask;
        }
    }
}