ASP.NET MVC:调用存储过程的最佳方式 [英] ASP.NET MVC: Best Way To Call Stored Procedure

问题描述

我正在尝试确定调用存储过程的最佳方式.

I'm trying to decide which is the best way to call a stored procedure.

我是 ASP.NET MVC 的新手，我阅读了很多关于 Linq to SQL 和实体框架以及存储库模式的文章.老实说，我很难理解 L2S 和 EF 之间的真正区别……但我想确保我在应用程序中构建的内容是正确的.

I'm new to ASP.NET MVC and I've been reading a lot about Linq to SQL and Entity Framework, as well as the Repository Pattern. To be honest, I'm having a hard time understanding the real differences between L2S and EF... but I want to make sure that what I'm building within my application is right.

现在，我需要正确调用存储过程来:a) 保存一些用户信息并获得响应，b) 获取产品目录的一些信息.

For right now, I need to properly call stored procedures to: a) save some user information and get a response and, b) grab some inforation for a catalog of products.

到目前为止，我已经创建了一个 Linq to SQL .dbml 文件，从服务器资源管理器中选择了 sotred 过程并将该实例拖到 .dbml 中.我目前正在像这样调用存储过程:

So far, I've created a Linq to SQL .dbml file, selected the sotred procedure from the Server Explorer and dragged that instance into the .dbml. I'm currently calling the Stored Procedure like so:

MyLinqModel _db = new MyLinqModel();
_db.MyStoredProcedure(args);

我知道必须有更多的参与......而且我是在我的控制器中这样做的，我认为这不是一个好的做法.

I know there's got to be more involved... plus I'm doing this within my controller, which I understand to be not a good practice.

有人能认出我的问题在哪里吗?

Can someone recognize what my issues are here?

推荐答案

如果您只想调用存储过程，那么 LINQ 和 EF 可能有点矫枉过正.

LINQ and EF are probably overkill if all you're trying to do is call a stored proc.

我使用企业库，但 ADO.NET 也可以正常工作.

I use Enterprise Library, but ADO.NET will also work fine.

请参阅本教程.

简要(从引用的文章中无耻地复制粘贴):

Briefly (shamelessly copied-and-pasted from the referenced article):

    SqlConnection conn = null;
    SqlDataReader rdr  = null;

    // typically obtained from user
    // input, but we take a short cut
    string custId = "FURIB";

    Console.WriteLine("
Customer Order History:
");

        // create and open a connection object
        conn = new SqlConnection("Server=(local);DataBase=Northwind; Integrated Security=SSPI");
        conn.Open();

        // 1.  create a command object identifying
        //     the stored procedure
        SqlCommand cmd  = new SqlCommand(
            "CustOrderHist", conn);

        // 2. set the command object so it knows
        //    to execute a stored procedure
        cmd.CommandType = CommandType.StoredProcedure;

        // 3. add parameter to command, which
        //    will be passed to the stored procedure
        cmd.Parameters.Add(
            new SqlParameter("@CustomerID", custId));

        // execute the command
        rdr = cmd.ExecuteReader();

        // iterate through results, printing each to console
        while (rdr.Read())
        {
            Console.WriteLine(
                "Product: {0,-35} Total: {1,2}",
                rdr["ProductName"],
                rdr["Total"]);
        }
    }

更新

我错过了您说您在控制器中执行此操作的部分.

I missed the part where you said that you were doing this in your controller.

不，这不是正确的做法.

No, that's not the right way to do this.

你的控制器应该只参与编排视图构建.创建一个单独的类库，称为数据访问层"或不那么通用的东西，并创建一个处理调用存储过程、从结果创建对象等的类. 关于如何处理这个问题有很多意见，但也许是最常见的是:

Your controller should really only be involved with orchestrating view construction. Create a separate class library, called "Data Access Layer" or something less generic, and create a class that handles calling your stored procs, creating objects from the results, etc. There are many opinions on how this should be handled, but perhaps the most common is:

View
|
Controller
|
Business Logic
|
Data Access Layer
   |--- SQL (Stored procs)
           -Tables
           -Views
           -etc.
   |--- Alternate data sources
           -Web services
           -Text/XML files
           -blah blah blah.

MSDN 有关于该主题的不错的教程.

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