.net core 如何在EF Core 2.2中为Oracle设置执行策略？

我想通过使用DbContext注入在Entity Framework Core 2.2中为Oracle设置执行策略。我正在使用NuGet包Oracle.EntityFrameworkCore连接到Oracle DB

services.AddDbContext<MyContext>(options =>
        {
            options.UseOracle(configuration.GetConnectionString("MyConnection"), oracleOptionsAction: oracleOptions =>
            {
                oracleOptions.ExecutionStrategy(x => 
                    new MyExecutionStrategy();
            });
        });

---

DbExecutionStrategy类不存在于dotnet core中，仅存在于dotnet中。您必须实现抽象类ExecutionStrategy。 自定义执行策略类必须以以下方式定义：

public class MyExecutionStrategy : ExecutionStrategy
{
    public MyExecutionStrategy(ExecutionStrategyDependencies dependencies, int maxRetryCount, TimeSpan maxRetryDelay) 
        : base(dependencies, maxRetryCount, maxRetryDelay)
    {

    }

    protected override bool ShouldRetryOn(Exception exception)
    {        
        return true;
    }
}

然后，依赖项注入部分：

services.AddDbContext(options =>
{
    options.UseOracle(configuration.GetConnectionString("MyConnection"), oracleOptionsAction: oracleOptions =>
    {
        oracleOptions.ExecutionStrategy(dependencies => 
            new MyExecutionStrategy(
            dependencies,
            retryCount,
            retryDelay));
    });
});

---

DbExecutionStrategy类不存在于dotnet core中，仅存在于dotnet中。您必须实现抽象类ExecutionStrategy。 自定义执行策略类必须以以下方式定义：

public class MyExecutionStrategy : ExecutionStrategy
{
    public MyExecutionStrategy(ExecutionStrategyDependencies dependencies, int maxRetryCount, TimeSpan maxRetryDelay) 
        : base(dependencies, maxRetryCount, maxRetryDelay)
    {

    }

    protected override bool ShouldRetryOn(Exception exception)
    {        
        return true;
    }
}

然后，依赖项注入部分：

services.AddDbContext(options =>
{
    options.UseOracle(configuration.GetConnectionString("MyConnection"), oracleOptionsAction: oracleOptions =>
    {
        oracleOptions.ExecutionStrategy(dependencies => 
            new MyExecutionStrategy(
            dependencies,
            retryCount,
            retryDelay));
    });
});