初始化

duoge/Program.cs

@@ -0,0 +1,135 @@
+using System.Text;
+using Confluent.Kafka;
+using Google.Protobuf;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using Tutorial;
+
+namespace duoge
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+
+            string json = @"{ 'name': 'John Doe', 'id': 123, 'email': 'john@example.com' }";
+            JObject jsonObject = JObject.Parse(json);
+            Person person = new Person();
+            person.Name = (string)jsonObject["name"];
+            person.Id = (int)jsonObject["id"];
+            person.Email = (string)jsonObject["email"];
+            Console.WriteLine("Name: " + person.Name); // 输出转换后的ProtoBuf对象信息
+            byte[] bbb1 = Encoding.UTF8.GetBytes(json);
+
+            byte[] bbb = person.ToByteArray();
+
+            Person PPP = Person.Parser.ParseFrom(bbb);
+
+
+            // 方法1：使用静态Parser（推荐）
+            Person restoredPerson1 = Person.Parser.ParseFrom(bbb);
+
+            // 方法2：创建新的Parser实例
+            var parser = new MessageParser<Person>(() => new Person());
+            Person restoredPerson2 = parser.ParseFrom(bbb);
+
+            // 方法3：使用扩展方法
+            Person restoredPerson3 = Person.Parser.ParseFrom(bbb.AsMemory<byte>().ToArray());
+            Console.WriteLine("Hello, World!");
+        }
+
+        static void MMM()
+        {
+
+            string[] _topics = ["", ""];
+            List<IConsumer<string, string>> _consumers = new List<IConsumer<string, string>>();
+            // 为每个主题创建一个消费者
+            foreach (var topic in _topics)
+            {
+                var consumerConfig = new ConsumerConfig
+                {
+                    BootstrapServers = "localhost:9092",
+                    GroupId = $"consumer-group-{topic}",
+                    AutoOffsetReset = AutoOffsetReset.Earliest,
+                    EnableAutoCommit = false
+                };
+
+                var consumer = new ConsumerBuilder<string, string>(consumerConfig).Build();
+                consumer.Subscribe(topic);
+                _consumers.Add(consumer);
+
+                // 为每个消费者启动一个独立的任务
+                Task.Run(() => ConsumeMessages(consumer, topic));
+            }
+        }
+
+
+        static private async Task ConsumeMessages(IConsumer<string, string> consumer, string topic)
+        {
+            try
+            {
+                var consumeResult = consumer.Consume();
+
+                if (consumeResult != null)
+                {
+                    Console.WriteLine($"收到消息 - 主题: {topic}, 键: {consumeResult.Message.Key}, 值: {consumeResult.Message.Value}");
+
+                    // 手动提交偏移量
+                    consumer.Commit(consumeResult);
+                }
+            }
+            catch (ConsumeException ex)
+            {
+            }
+            catch (OperationCanceledException)
+            {
+            }
+        }
+
+        //private async Task ProcessMessage(string topic, string key, string value)
+        //{
+        //    // 根据不同的主题执行不同的处理逻辑
+        //    switch (topic)
+        //    {
+        //        case "topic-1":
+        //            await ProcessTopic1Message(key, value);
+        //            break;
+        //        case "topic-2":
+        //            await ProcessTopic2Message(key, value);
+        //            break;
+        //        // ... 其他主题的处理逻辑
+        //        default:
+        //            _logger.LogInformation($"处理默认主题消息: {topic}, Key: {key}, Value: {value}");
+        //            break;
+        //    }
+        //}
+
+        //private async Task ProcessTopic1Message(string key, string value)
+        //{
+        //    // 主题1的具体处理逻辑
+        //    await Task.Delay(100); // 模拟处理耗时
+        //    _logger.LogInformation($"处理主题1消息: Key={key}, Value={value}");
+        //}
+
+        //private async Task ProcessTopic2Message(string key, string value)
+        //{
+        //    // 主题2的具体处理逻辑
+        //    await Task.Delay(100); // 模拟处理耗时
+        //    _logger.LogInformation($"处理主题2消息: Key={key}, Value={value}");
+        //}
+
+        //public Task StopAsync(CancellationToken cancellationToken)
+        //{
+        //    _logger.LogInformation("停止Kafka消费者服务...");
+        //    _cancellationTokenSource.Cancel();
+
+        //    foreach (var consumer in _consumers)
+        //    {
+        //        consumer.Close();
+        //        consumer.Dispose();
+        //    }
+
+        //    return Task.CompletedTask;
+        //}
+    }
+}