.NetCore6 + MediatR

不取姓名

已于 2022-11-07 20:50:13 修改

阅读量562

点赞数

CC 4.0 BY-SA版权

文章标签： .netcore c# 开发语言

于 2022-11-07 20:25:56 首次发布

本文链接：https://blog.youkuaiyun.com/a_1ba1a/article/details/127738493

.NetCore6 + MediatR

一、安装Nuget包

MediatR 版本 11.0.0
MediatR.Extensions.Microsoft.DependencyInjection 版本 11.0.0

二、注入MeditorR

【program】

builder.Services.AddControllers();

builder.Services.AddMediatR(Assembly.GetExecutingAssembly());

三、使用mediatR

开始添加用户的逻辑处理。（Send）

public class AddUserCommand : IRequest<bool>
{
    public string UserName { get; set; }
    public string PassWord { get; set; }

}
public class AddUserCommandHandler : IRequestHandler<AddUserCommand, bool>
{
    public Task<bool> Handle(AddUserCommand request, CancellationToken cancellationToken)
    {
        //这里实现添加用户的业务逻辑
        Console.WriteLine("开始添加用户处理");
        
        return Task.FromResult(true);
    }
}

用户添加完成后，使用消息通知，实现下一步操作。（Publish）

public class AddUserCommandSuccess : INotification
{
    public string UserName { get; set; }
    public string PassWord { get; set; }
}
public class AddUserCommandSuccessQQHandler : INotificationHandler<AddUserCommandSuccess>
{
    public Task Handle(AddUserCommandSuccess notification, CancellationToken cancellationToken)
    {
        //开始下一步操作的用户逻辑
        Console.WriteLine($"推送QQ：添加用户成功，用户名是{notification.UserName},密码是{notification.PassWord}");
        return Task.CompletedTask;
    }
}

四、开始业务调用

public class UserController : ControllerBase
{
    private IMediator _mediator;
    public UserController(IMediator mediator)
    {
        _mediator = mediator;
    }

    [HttpGet("CreateUser")]
    public async Task<ActionResult> CreateUser(string userName, string password)
    {
        bool flag = await _mediator.Send(new AddUserCommand() { UserName = userName, PassWord = password });
        if (flag)
        {
            await _mediator.Publish(new AddUserCommandSuccess() { UserName = userName, PassWord = password });
        }

        return Ok(flag);
    }

}

文档参考: https://www.cnblogs.com/zoe-zyq/p/13894801.html