在使用ASP.NET Core HealthChecks与RabbitMQ集成时,可能会遇到一些错误或负面结果。以下是一种解决方法,其中包含代码示例:
services.AddHealthChecks()
.AddRabbitMQ("rabbitmq", connectionString: "your_connection_string");
using Microsoft.Extensions.Diagnostics.HealthChecks;
using RabbitMQ.Client;
public class RabbitMQHealthCheck : IHealthCheck
{
private readonly string _connectionString;
public RabbitMQHealthCheck(string connectionString)
{
_connectionString = connectionString;
}
public Task CheckHealthAsync(HealthCheckContext context, CancellationToken cancellationToken = default)
{
try
{
var factory = new ConnectionFactory { Uri = _connectionString };
using (var connection = factory.CreateConnection())
{
if (connection.IsOpen)
{
return Task.FromResult(HealthCheckResult.Healthy("RabbitMQ is healthy."));
}
else
{
return Task.FromResult(HealthCheckResult.Unhealthy("RabbitMQ is unhealthy."));
}
}
}
catch (Exception ex)
{
return Task.FromResult(HealthCheckResult.Unhealthy("RabbitMQ is unhealthy.", ex));
}
}
}
services.AddSingleton(sp =>
{
var connectionString = Configuration.GetConnectionString("RabbitMQ");
return new RabbitMQHealthCheck(connectionString);
});
app.UseEndpoints(endpoints =>
{
endpoints.MapHealthChecks("/health");
});
例如,使用curl命令检查/health端点:
$ curl http://localhost:5000/health
如果RabbitMQ健康,则响应应该类似于:
{"status":"Healthy","totalDuration":"00:00:00.0194249"}
如果RabbitMQ不健康,则响应应该类似于:
{"status":"Unhealthy","totalDuration":"00:00:00.0202101","error":"RabbitMQ is unhealthy."}
通过以上步骤,您可以在与RabbitMQ一起使用ASP.NET Core HealthChecks时检查RabbitMQ的健康状态,并根据需要进行错误报告。