Spring.NET Installation and setup the first program

最新推荐文章于 2020-05-09 10:58:48 发布

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最新推荐文章于 2020-05-09 10:58:48 发布

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原文链接：http://www.cnblogs.com/yangbin990/archive/2011/12/08/2280753.html

本文详细介绍如何在C#环境中利用Spring.NET框架进行依赖注入，包括安装、创建项目、配置和运行示例代码。通过修改配置文件，可以灵活地切换不同的数据访问对象，无需重新编译应用程序。

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1. Download the file in blue box from website http://www.springsource.com/, then execute the exe file to install it

2. Create a sample porject called DataAccess in C# console program

3. Add C:\Program Files\Spring.NET 1.3.2\bin\net\2.0\release\Spring.Core.dll (2.0 means framework 2)

The solution file is like

The code is like below

Program.cs

using System;
using System.Collections.Generic;
using System.Text;
using Spring.Context;
using Spring.Context.Support; 
namespace DataAccess
{
  class MainApp
  { 
    static void Main()
    {
      DataAccessObject daoCategories = new Categories();
      daoCategories.Run();
 
      DataAccessObject daoProducts = new Products();
      daoProducts.Run();
  
      IApplicationContext context = ContextRegistry.GetContext(); 
      DataAccessObject DAO = (DataAccessObject)context.GetObject("DataAccessObject");
      DAO.Run();
  
      // Wait for user
      Console.ReadKey();
    }
  }
  
  abstract class DataAccessObject
  {
    protected string connectionString; 
 
    public virtual void Connect()
    {
        Console.WriteLine("Connect '" + connectionString + "'"); 
    }
 
    public abstract void Select();
    public abstract void Process();
 
    public virtual void Disconnect()
    {
        Console.WriteLine("Discount\r\n");
    }
 
    // The 'Template Method'
    public void Run()
    {
      Connect();
      Select();
      Process();
      Disconnect();
    }
  }
  
  class Categories : DataAccessObject
  {
    public override void Select()
    {
        Console.WriteLine("Get Categories"); 
    }
 
    public override void Process()
    {
        Console.WriteLine("Process Categories"); 
    }
  }
  
  class Products : DataAccessObject
  {
    public override void Select()
    {
        Console.WriteLine("Get Products"); 
    }
 
    public override void Process()
    {
        Console.WriteLine("Process Products"); 
    }
  }
} 
  

App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <sectionGroup name="spring">
      <section name="context" type="Spring.Context.Support.ContextHandler, Spring.Core"/>
    </sectionGroup>
  </configSections>
  <spring>
    <context>
      <resource uri="spring.xml.config"/>
    </context> 
  </spring>
</configuration>

spring.xml.config

<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net">
  <object id="DataAccessObject" type="DataAccess.Products">
    <property name="connectionString" value="C:\db\northwind.mdb"/>
  </object>
</objects>

Running the application, the output is like

Now modify the spring.xml.config as below, only change “Products” to “Categories”

<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net">
  <object id="DataAccessObject" type="DataAccess.Categories">
    <property name="connectionString" value="C:\db\northwind.mdb"/>
  </object>
</objects>