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