我是企业架构的新手,但是当我正确理解时,它由3层组成。我在.net平台上的学校项目工作,我有这样的结构:
当我有这个结构时,我可以在哪里存储一些WEB API或WCF?可以通过商业层吗?或者你可以建议我,在那里我找到EA与服务和mvc的真实单词示例?感谢
答案 0 :(得分:3)
你实际上有四层:
命名约定可能有点不同,但这个想法是Separation Of Principal's。允许服务层执行业务逻辑但不知道数据层的方法调用的想法。
所以你可以参考:
因此,您的表示层将引用所有内容,因此在构建依赖注入容器时,您可以在整个过程中正确引用。
您可以将此project视为示例。如何互动。
<强>演示:强>
using Microsoft.AspNetCore.Mvc;
using Service_Layer;
namespace Address_Book.Controllers
{
[Route("api/[controller]")]
public class PeopleController : Controller
{
#region Dependencies:
private readonly IPeopleService peopleService;
#endregion
#region Constructor:
public PeopleController(IPeopleService peopleService)
{
this.peopleService = peopleService;
}
#endregion
[HttpGet]
public JsonResult Get()
{
var branches = peopleService.GetBranches();
return Json(branches);
}
[HttpGet("{id}")]
public JsonResult Get(int id)
{
var people = peopleService.GetEmployees(id);
return Json(people);
}
}
}
服务层:
using Data_Layer.Factory;
using Domain_Layer.Entity;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
namespace Service_Layer
{
public class PeopleService : IPeopleService
{
private readonly IEmployeeFactory factory;
private const string getBranches = "...";
private const string getPeople = "..."
#region Constructor:
public PeopleService(IEmployeeFactory factory)
{
this.factory = factory;
}
#endregion
public IEnumerable<BranchModel> GetBranches()
{
using (var context = factory.Create())
return context.List<BranchModel>(getBranches, CommandType.Text);
}
public IEnumerable<EmployeeModel> GetEmployees(int branchId)
{
using (var context = factory.Create())
return context.List<EmployeeModel>(getPeople, CommandType.Text, new SqlParameter() { ParameterName = "BranchNum", SqlDbType = SqlDbType.Int, Value = branchId });
}
}
#region Declaration of Intent:
public interface IPeopleService
{
IEnumerable<BranchModel> GetBranches();
IEnumerable<EmployeeModel> GetEmployees(int branchId);
}
#endregion
}
数据层:
using Data_Layer.Repository;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using Data_Layer.Helper;
namespace Data_Layer.Context
{
public class EmployeeContext : DbCommand, IEmployeeRepository
{
private bool disposed = false;
private string dbConnection;
#region Constructor:
public EmployeeContext(string dbConnection)
{
this.dbConnection = dbConnection;
}
#endregion
public IEnumerable<TEntity> List<TEntity>(string query, CommandType commandType, params SqlParameter[] parameters) where TEntity : class, new()
{
using (var connection = new SqlConnection(dbConnection))
using (var command = new SqlCommand(query, connection))
{
connection.Open();
command.CommandType = commandType;
foreach (var parameter in parameters)
command.Parameters.Add(parameter);
return BuildEntity(command, new TEntity());
}
}
#region Dispose:
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(true);
}
protected virtual void Dispose(bool disposing)
{
if (!disposed)
disposed = true;
}
~EmployeeContext() { Dispose(false); }
#endregion
}
}
您将需要查看项目,通过依赖注入调用数据层和服务层,我为Startup.cs
文件创建了一个扩展方法,但这就是它们的交互方式。如果您有任何问题可以随意提问,我每天都在C#聊天。