protected virtual async Task Subscribe_Should_Succeed()
{
var serviceName = $"sub-{Guid.NewGuid().ToString()}";
var ip = "127.0.0.3";
var port = 9999;
await AssertRegisterSingleInstance(serviceName, ip, port, nameof(DeregisterInstance_Should_Succeed)).ConfigureAwait(false);
var listerner = new NamingListerner(_output);
await _namingSvc.Subscribe(serviceName, listerner).ConfigureAwait(false);
await _namingSvc.RegisterInstance(serviceName, "127.0.0.4", 9999).ConfigureAwait(false);
await Task.Delay(500).ConfigureAwait(false);
}
/// <summary>
/// 订阅服务变化
/// </summary>
/// <param name="stoppingToken"></param>
/// <returns></returns>
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
// Add listener
await _nacosNamingService.Subscribe(JsonConfigSettings.NacosServiceName, Nacos.V2.Common.Constants.DEFAULT_GROUP, eventListener);
var instance = new Nacos.V2.Naming.Dtos.Instance()
{
ServiceName = JsonConfigSettings.NacosServiceName,
ClusterName = Nacos.V2.Common.Constants.DEFAULT_CLUSTER_NAME,
Ip = IpHelper.GetCurrentIp(null),
Port = JsonConfigSettings.NacosPort,
Enabled = true,
Weight = 1000,// 权重 默认1000
Metadata = JsonConfigSettings.NacosMetadata
};
await _nacosNamingService.RegisterInstance(JsonConfigSettings.NacosServiceName, Nacos.V2.Common.Constants.DEFAULT_GROUP, instance);
ConsoleHelper.WriteSuccessLine($"Nacos connect: Success!");
}
static async Task Subscribe(INacosNamingService svc, IEventListener listener)
{
// 订阅服务变化
await svc.Subscribe("demo-svc1", Nacos.V2.Common.Constants.DEFAULT_GROUP, listener);
// 模拟服务变化，listener会收到变更信息
await RegisterInstance(svc, 9997);
await Task.Delay(3000);
// 取消订阅
await svc.Unsubscribe("demo-svc1", Nacos.V2.Common.Constants.DEFAULT_GROUP, listener);
// 服务变化后，listener不会收到变更信息
await RegisterInstance(svc);
await Task.Delay(1000);
}
