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项目地址

• 教程作者：
• 教程地址：

https://www.CSDN.com/watch?v=AiwzQMupPsU

• 代码仓库地址作者：

https://github.com/mohammad-taheri1/Youtube-Resume-Management-dotnet-react-ts

• 代码仓库自己：

https://github.com/CXTV/Resume/tree/main/backend

一、数据库准备/日志安装

1.1 创建实体层

1. Entities

1. BaseEntity.cs

namespace ResumeManagement.Domain.Entities
{public abstract class BaseEntity{public Guid ID { get; set; }   public DateTime CreatedAt { get; set; } = DateTime.Now;public DateTime UpdateAt { get; set; } = DateTime.Now;public bool isActive { get; set; } = true;  }
}

2. Company.cs : 里面有Job的Collection

namespace ResumeManagement.Domain.Entities
{public class Company:BaseEntity{public string Name { get; set; }public CompanySize Size { get; set; }//relations 一对多public ICollection<Job> Jobs { get; set; }}
}

3. Job.cs:每个职位有对应的公司id和名称，一个职位有多个候选人

namespace ResumeManagement.Domain.Entities
{public class Job: BaseEntity{public string Title { get; set; }public JobLevel Level { get; set; }//relations 多对一public Guid CompanyID { get; set; }public Company Company { get; set; }//relations 一对多一个职位可以有多个候选人public ICollection<Candidate> Candidates { get; set; }}
}

4. Candidate.cs: 每个候选人，有投递的工作ID和工作名称

namespace ResumeManagement.Domain.Entities
{public class Candidate: BaseEntity{public string FirstName { get; set; }public string LastName { get; set; }public string Email { get; set; }public string Phone { get; set; }public string CoverLetter { get; set; }public string ResumeUrl { get; set; }//relations 多对一public Guid JobID { get; set; }public Job Job { get; set; }}
}

2. Enums 存放枚举

1. 公司规模的枚举

namespace ResumeManagement.Domain.Enums
{public enum CompanySize{Small,Medium,Large}
}

2.工作等级的

1.2 创建数据库层

1. 安装Persistance层需要的库

2. 创建ResumeDbContext

• 这里定义表的关系
  

3. 添加数据库配置/注册DBContext

1. API层数据库连接appsettings.json

{"Logging": {"LogLevel": {"Default": "Information","Microsoft.AspNetCore": "Warning"}},"ConnectionStrings": {"ResumeDBConnectionStrings": "Server=.;Database=ResumeDB;Trusted_Connection=True;MultipleActiveResultSets=true;TrustServerCertificate=True;"},"AllowedHosts": "*"
}

2. 在Persistance层创建PersistanceRegistration.cs文件

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;namespace ResumenManagement.Persistance
{public static class PersistanceRegistration{public static void  AddPersistanceRegistration(this IServiceCollection services, IConfiguration configuration){services.AddDbContext<ResumeDbContext>(options =>options.UseSqlServer(configuration.GetConnectionString("ResumeDBConnectionStrings")));}}
}

3. 在Api层里注册

4. 执行Add-Migration

• 注意：如果从新添加了文件夹，一定要build项目之后，重启项目，才会执行migration成功
  
• 执行成功后，在数据里，就可以看到我们的表

5. 修改字段类型

• 在我们创建完成表之后，返现Size是int类型，Job里的Level也是int类型，这是因为枚举类型造成的原因，需要在DbContext里修改类型
• 

6. Enum支持Json

• 在Program.cs里添加

builder.Services.AddControllers().AddJsonOptions(options =>
{options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
});

1.3 安装Serilog

1. Api层安装所需要的包

2. 在appsetting里配置

• 直接配置在setting之后，就不需要在中间件里配置

  "Serilog": {"MinimumLevel": {"Override": {"Microsoft": "Warning","Microsoft.EntityFrameworkCore": "Information"}},"WriteTo": [{"Name": "Console","Args": {"outputTemplate": "[{Timestamp:dd-MM HH:mm:ss} {Level:u3}] |{SourceContext}| {NewLine}{Message:lj}{NewLine}{Exception}"}},{"Name": "File","Args": {"path": "Logs/Resturant-API-.log","rollingInterval": "Day","rollOnFileSizeLimit": true,"formatter": "Serilog.Formatting.Compact.CompactJsonFormatter, Serilog.Formatting.Compact"}}]},"AllowedHosts": "*"

3. 注册Serilog在Program里

• 注册服务以及中间件
  

4.EfCore开启日志

• 在Persistence层里，efCore服务注册的地方PersistanceRegistration.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using ResumenManagement.Application.Contracts.Persistance;
using ResumenManagement.Persistance.Repositories;namespace ResumenManagement.Persistance
{public static class PersistanceRegistration{public static void  AddPersistanceRegistration(this IServiceCollection services, IConfiguration configuration){services.AddDbContext<ResumeDbContext>(options =>options.UseSqlServer(configuration.GetConnectionString("ResumeDBConnectionStrings")).EnableSensitiveDataLogging() // 启用敏感数据记录);services.AddScoped(typeof(IAsyncRepository<>), typeof(BaseRepository<>));services.AddScoped<ICompanyRepository, CompanyRepository>();}}
}

5. 在Hanlder里使用

1. 需要先在Application层安装一个包才可以使用
   
2. 注册服务以及使用

二、Application层

2.1 安装MediaR和AutoMapper

1. 安装所需要的包和引用

2. 添加ApplicationRegistration

• 在Application层添加ApplicationRegistration.cs

using Microsoft.Extensions.DependencyInjection;namespace ResumenManagement.Application
{public static class ApplicationRegistration{public static void AddApplicationRegistration(this IServiceCollection services){//1.获取应用程序程序集var applicationAssembly = typeof(ApplicationRegistration).Assembly;//2.注册所有MediatR处理程序services.AddMediatR(cfg => cfg.RegisterServicesFromAssembly(applicationAssembly));//3.注册所有AutoMapper配置services.AddAutoMapper(applicationAssembly);              }}
}

3. 在Program里注册

• Program.cs里添加ApplicationRegistration