Web.config中configSections詳細說明

原創

lizuwu

2020-02-21 13:18

第一部分：Web.config如何定義configSections

建立Test.Demo1類庫，默認情況下，此類庫的默認屬性中，程序集名稱爲：Test.Demo1,默認命名空間爲:Test.Demo1.

此類庫生成的Dll相應的爲Test.Demo1.dll和Test.Demo1.pdb.

Demo02.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Configuration;

namespace Test.SectionDemo
{
    /// <summary>  
    /// 自定義Section  
    /// </summary>  
    public class SectionHandle : ConfigurationSection
    {
        [ConfigurationProperty("users", IsRequired = true)]
        public SectionElement Users
        {
            get
            {
                return (SectionElement)this["users"];
            }
        }
    }
}

Web.config

<?xml version="1.0"?>
<!--
  有關如何配置 ASP.NET 應用程序的詳細信息，請訪問
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
	<configSections>
		<section name="SectionHandle" type="Test.SectionDemo.SectionHandle,Test.Demo1"/>
	</configSections>
	<SectionHandle>
		<users username="kevin" password="123"></users>
	</SectionHandle>
	<system.web>
		<compilation debug="true" targetFramework="4.0"/>
	</system.web>
</configuration>

此處，type=“Test.SectionDemo.SectionHandle"來自Demo2.cs的類定義。和默認命名空間沒有關係。

但是Test.Demo1就來自“程序集名稱爲：Test.Demo1”

Element.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;

namespace Test.SectionDemo
{
    ///  <summary>    
    /// 自定義Element  
    /// </summary>  
    public class SectionElement : ConfigurationElement
    {
        /// <summary>  
        /// 用戶名             
        /// </summary>            
        [ConfigurationProperty("username", IsRequired = true)]
        public string UserName
        {
            get
            {
                return (string)this["username"];
            }
        }
        ///  <summary>    
        ///   密碼   
        ///  </summary>    
        [ConfigurationProperty("password", IsRequired = true)]
        public string Password
        {
            get
            {
                return (string)this["password"];
            }
        }
    }
}

Default.aspx.cs

using System;   
using System.Collections.Generic;   
using System.Linq;   
using System.Web;   
using System.Web.UI;   
using System.Web.UI.WebControls;   
     
using System.Configuration;
using Test.SectionDemo;


public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        SectionHandle mySectionHandle = (SectionHandle)ConfigurationManager.GetSection("SectionHandle");
        Response.Write("username：" + mySectionHandle.Users.UserName + "<br/>");
        Response.Write("password：" + mySectionHandle.Users.Password + "<br/>");
    }
}

運行結果