.Net里面，ConfigurationManager默认读取的是Web.config或者App.config但是，什么都放在这两个文件里面，感觉太多了，也不好管理配置。于是参考了下别人的资料，自己写了一个例子，例子实现的的是E:\App.config的文件，文件格式如下

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <configSections>

    <section name="books" type="ConfigurationDemo.BooksSection, ConfigurationDemo"/>

  </configSections>

  <books>

    <book name="" author=""/>

  </books>

</configuration>

要实现这样的功能，就要实现自己的ConfigurationSection，ConfigurationElementCollection，ConfigurationElement 

.ConfigurationSection

public class BooksSection : ConfigurationSection

    {

        [ConfigurationProperty("books", IsRequired = true)]

        public string Category

        {

            get

            {

                return (string)base["Category"];

            }

            set

            {

                base["Category"] = value;

            }

        }

        [ConfigurationProperty("", IsDefaultCollection = true)]

        public BookElementCollection Books

        {

            get

            {

                return (BookElementCollection)base[""];

            }

        }

    }

.ConfigurationElementCollection

    public class BookElementCollection : ConfigurationElementCollection

    {

        protected override ConfigurationElement CreateNewElement()

        {

            return new BookElement();

        }

        protected override object GetElementKey(ConfigurationElement element)

        {

            return ((BookElement)element).Name;

        }

        public override ConfigurationElementCollectionType CollectionType

        {

            get

            {

                return ConfigurationElementCollectionType.BasicMap;

            }

        }

        protected override string ElementName

        {

            get

            {

                return "book";

            }

        }

        public BookElement this[int index]

        {

            get

            {

                return (BookElement)BaseGet(index);

            }

            set

            {

                if (BaseGet(index) != null)

                {

                    BaseRemoveAt(index);

                }

                BaseAdd(index, value);

            }

        }

    }

.ConfigurationElement

    public class BookElement : ConfigurationElement

    {

        [ConfigurationProperty("name", IsRequired = true)]

        public string Name

        {

            get

            {

                return (string)base["name"];

            }

            set

            {

                base["name"] = value;

            }

        }

        [ConfigurationProperty("author", IsRequired = true)]

        public double Author

        {

            get

            {

                return (double)base["author"];

            }

            set

            {

                base["author"] = value;

            }

        }

    }

.0Config文件

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <configSections>

    <section name="books" type="ConfigurationDemo.BooksSection, ConfigurationDemo"/>

  </configSections>

  <books>

    <book name="" author=""/>

  </books>

</configuration>

.0读取

        static void Main(string[] args)

        {

            string configPath = @"E:\App.config";

            ExeConfigurationFileMap map = new ExeConfigurationFileMap();

            map.ExeConfigFilename = configPath;

            var configManager = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);

            if (configManager.HasFile)

            {

                BooksSection config = (BooksSection)configManager.GetSection("books");

                Console.WriteLine(config.Books[].Name);

            }

        }

结果

请按任意键继续. . .