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經過很多努力,我一直無法在我的應用程序層和業務層之間創建一個簡單的DI示例。無法獲得彈簧依賴注入以在簡單的Web應用程序上工作
這裏是我的web.config春天片段:
<configSections>
<sectionGroup name="spring">
<section name="context" type="Spring.Context.Support.WebContextHandler, Spring.Web"/>
<section name="objects" type="Spring.Context.Support.DefaultSectionHandler, Spring.Core"/>
<section name="parsers" type="Spring.Context.Support.NamespaceParsersSectionHandler, Spring.Core"/>
</sectionGroup>
</configSections>
<spring>
<parsers>
<parser type="Spring.Data.Config.DatabaseNamespaceParser, Spring.Data"/>
<parser type="Spring.Transaction.Config.TxNamespaceParser, Spring.Data"/>
</parsers>
<context>
<resource uri="config://spring/objects"/>
<resource uri="~/BusinessLayer/Business.xml"/>
<resource uri="~/Web.xml"/>
</context>
<objects xmlns="http://www.springframework.net" xmlns:db="http://www.springframework.net/database" xmlns:tx="http://www.springframework.net/tx">
<!-- Pages -->
</objects>
</spring>
這是Business.xml
<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.net http://www.springframework.net/xsd/spring-objects.xsd">
<object id="UserBLL" type="Kupla.BusinessLayer.UserBLL, Kupla.BusinessLayer">
</object>
</objects>
這是在web.xml:
<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.net http://www.springframework.net/xsd/spring-objects.xsd">
<object type="default.aspx">
<property name="UserBLL" ref="UserBLL"></property>
</object>
</objects>
這是業務層中UserBLL.cs的定義:
namespace Kupla.BusinessLayer
{
class UserBLL : IUserBLL
{
public int TestGetUserId()
{
int userId = 1;
return userId;
}
}
}
終於在應用層的代碼試圖從default.aspx.cs訪問業務層:
using System;
using Kupla.BusinessLayer;
namespace Kupla
{
public partial class _default : System.Web.UI.Page
{
private IUserBLL _userBLL;
public IUserBLL UserBLL
{
set { _userBLL = value; }
}
protected void Page_Load(object sender, EventArgs e)
{
int userID = _userBLL.TestGetUserId();
}
}
}
當啓動該網站,_userBLL爲空。我的DI在某處失敗。
非常感謝。