首先我们准备两个服务接口
public interface IServiceA
{
void showConsole();
int GetValue(int val);
}
public interface IServiceB
{
void DoWork();
string ShowName();
}
接着我们分别实现两个接口
public class ServiceA : IServiceA
{
private IServiceB _serviceB { get; }
public ServiceA(IServiceB serviceB)
{
_serviceB = serviceB;
} public int GetValue(int val)
{
return val;
} public void showConsole()
{
_serviceB.ShowName();
}
}
class ServiceB : IServiceB
{
private Microsoft.Extensions.Logging.ILogger _log { get; } public ServiceB(ILogger<ServiceB> logger)
{
_log = logger;
}
public void DoWork()
{
_log.LogInformation($" I am doing work ");
}
public string ShowName()
{
_log.LogInformation($" At Time :{DateTime.Now.ToString()} 被调用");
return "I am ServiceB ";
}
}
在主函数中这么写
static void Main(string[] args)
{
var serviceProvider = new ServiceCollection()
.AddLogging()
.AddTransient<IServiceB, ServiceB>()
.AddTransient<IServiceA, ServiceA>()
.BuildServiceProvider(); serviceProvider.GetService<ILoggerFactory>().AddConsole(LogLevel.Debug);
var Logger = serviceProvider
.GetService<ILoggerFactory>()
.CreateLogger<Program>();
Logger.LogDebug("Starting Program");
var serviceB = serviceProvider.GetService<IServiceB>();
serviceB.DoWork();
var serviceA = serviceProvider.GetService<IServiceA>();
var k = serviceA.GetValue(12345);
Console.WriteLine(k);
serviceA.showConsole();
Logger.LogInformation("All Done ");
Console.ReadLine();
}
提示需要引入的Nuget包
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="1.1.1" />
<PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.2" />
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="1.1.2" />
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="1.1.2" />
</ItemGroup>
运行结果：