结合Command以AOP方式实现事务

nuget包

1. Autofac
2. Autofac.Extensions.DependencyInjection
3. MediatR
4. MediatR.Extensions.Microsoft.DependencyInjection

一、Command

 public class CreateStudentCommand : IRequest<int>
    {
   
   
        public int ID {
   
    get; set; }
        public string Name {
   
    get; set; } 
        public string Sex {
   
    get; set; }
        public string Phone {
   
    get; set; }
        public string Address {
   
    get; set; }
    }

二、CommandHandler

  public class CreateStudentCommandHandler : IRequestHandler<CreateStudentCommand, int>
    {
   
   

        private readonly StudentDbContext _studentDbContext;
        private readonly IMediator _mediator;

        public CreateStudentCommandHandler(StudentDbContext studentDbContext , IMediator mediator)
        {
   
   
            _studentDbContext = studentDbContext;
            _mediator = mediator;
        }
        public async Task<int> Handle(CreateStudentCommand request, CancellationToken cancellationToken)
        {
   
   
            Student student = new Student
            {
   
   
                Name = "123"