使用对象序列化实现自定义配置文件管理

来源:互联网 发布:测量员软件使用说明书 编辑:程序博客网 时间:2024/05/18 00:08

一、 为什么要这样做

  问题:在程序开发中,经常会涉及对XML的操作,在C#中常用的方法有两种

  1. xpath解析

  2. XMLDocument解析

  在解析时什么很麻烦,c#提供了xml序列化的方法,非常方便进实现xml和以象间的转换,在插件系统框架程序中,实现插件的管理配置,使用序列化确实方便了不少,扩展性非常方便,有些朋友会提到性能的问题,在这个系统中,结合缓存问题不是问题。

  二、 怎么样来做概况

  首先来看类结构图:

.NET 插件系统框架设计(二) 使用对象序列化实现自定义配置文件管理

类名说明备注FrameworkConfiguraconfigManager配置文件管理类实现config管理,load、saveFrameworkConfiguraconfig配置文件类 PluginSettings插件配置文件集合适配器利用索引实现集合访问PluginSetting插件配置文件例如UserCentERPluginAssemblyFile插件对应配置文件 AppSettings应用程序配置集合适配器得 key valueAppSetting应用程序配置 

  本文主要是实现对象读取与保存,类结构就不做过多分析,主要看FrameworkConfiguration 、FrameworkConfigurationManager类

.NET 插件系统框架设计(二) 使用对象序列化实现自定义配置文件管理

  FrameworkConfigurationManager实现FrameworkConfiguration 保存与读取,FrameworkConfiguration包含了AppSettings对象及PluginSettiongs对象,后续还可以扩展。

  关键代码

//名称空间引入 
using System.IO; 
using System.Xml.Serialization; 
//指定xml序列化属性 根结点名间 
[Serializable] 
[XmlRootAttribute("configuration", Namespace = "http://www.codemarks.net ")] 
public class FrameworkConfiguration 
//序列化保存 
[XmlElementAttribute(ElementName = "pluginSetting", IsNullable = false)] 
public List<PluginSetting> Items 
{ 
get { return _items; } 
set { _items = value; } 
} 
public void Save() 
{ 
FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write); 
XmlSerializer ser = new XmlSerializer(typeof(FrameworkConfiguration), new Type[] { 
typeof(PluginSettings), 
typeof(PluginSetting), 
typeof(AssemblyFile), 
}); 
ser.Serialize(fs, this.config); 
fs.Close(); 
} 
//序列化读取 
public void Load() 
{ 
//不存配置文件 
if (!File.Exists(fileName)) 
{ 
this.config = new FrameworkConfiguration(); 
return; 
} 
FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read); 
XmlSerializer ser = new XmlSerializer(typeof(FrameworkConfiguration), new Type[] { 
typeof(PluginSetting), 
typeof(PluginSettings), 
typeof(AssemblyFile) 
}); 
this.config = (FrameworkConfiguration)ser.Deserialize(fs); 
fs.Close(); 
} 

  在Test类中读到插件对象

  FrameworkConfigurationManager.Instance.Config.PluginSettings["UserCenter"]; // UserCenter为插件名称

  结果

<?xml version="1.0" encoding="utf-8"?> 
<configuration> 
<pluginSettings> 
<plugin name="UserPlugin" author="codemarks" descript="" version="1.0" Webroot="/plugin/user/web/"> 
<assemblys> 
<assembly name="CodeMarks.Framework.Plugin.Adapter.User" descript="">cn.CodeMarks.Framework.Plugin.Adapter.UserAdapter</assembly> 
<assembly name="CodeMarks.Framework.Plugin.AddIn.User" descript=""/> 
<assembly name="CodeMarks.Framework.Plugin.Model.User" descript=""/> 
<assembly name="CodeMarks.Framework.Plugin.View.User" descript=""/> 
</assemblys> 
</plugin> 
</pluginSettings> 
<appSettings> 
<add key="pluginRoot" value="/Plugin/"></add> 
</appSettings> 
</configuration> 

  三、 问题及其它四、 完整代码

//FrameworkConfiguraconfigManager完成代码 
using System; 
using System.Collections.Generic; 
using System.Text; 
using System.IO; 
using System.Xml.Serialization; 
namespace cn.CodeMarks.Framework.Plugin 
{ 
  public class FrameworkConfigurationManager 
  { 
    private static FrameworkConfigurationManager instance = null; 
    public static FrameworkConfigurationManager Instance 
    { 
      get 
      { 
        if (FrameworkConfigurationManager.instance == null) 
        { 
          FrameworkConfigurationManager.instance = new FrameworkConfigurationManager(); 
        } 
        return FrameworkConfigurationManager.instance; 
      } 
    } 
    private FrameworkConfiguration config = new FrameworkConfiguration(); 
    public FrameworkConfiguration Config 
    { 
      get { return config; } 
      set { config = value; } 
    } 
    public void Save() 
    { 
      FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write); 
      XmlSerializer ser = new XmlSerializer(typeof(FrameworkConfiguration), new Type[] { 
        typeof(PluginSettings), 
        typeof(PluginSetting), 
        typeof(AssemblyFile), 
         
      }); 
      ser.Serialize(fs, this.config); 
      fs.Close(); 
    } 
    private string fileName = "FrameworkConfig.xml"; 
    public void Load() 
    { 
      //不存配置文件 
      if (!File.Exists(fileName)) 
      { 
        this.config = new FrameworkConfiguration(); 
        return; 
      } 
      FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read); 
      XmlSerializer ser = new XmlSerializer(typeof(FrameworkConfiguration), new Type[] { 
        typeof(PluginSetting), 
        typeof(PluginSettings), 
        typeof(AssemblyFile) 
      }); 
      this.config = (FrameworkConfiguration)ser.Deserialize(fs); 
      fs.Close(); 
    } 
    public void TestData() 
    { 
      PluginSetting ps1 = new PluginSetting(); 
      ps1.PluginName = "UserPlugin"; 
      ps1.Author = "codemarks"; 
      ps1.Descript = ""; 
      ps1.Version = "1.0"; 
      ps1.WebRoot = "/plugin/user/webroot/"; 
      AssemblyFile af1 = new AssemblyFile(); 
      af1.Name = "CodeMarks.Framework.Plugin.Adapter.User"; 
      af1.AdapterClassName = "CodeMarks.Framework.Plugin.Adapter.User.UserAdapter"; 
      ps1.Items.Add(af1); 
      this.config.PluginSettings.AddPlugin(ps1); 
      PluginSetting ps = new PluginSetting(); 
      ps.PluginName = "UserPlugin2"; 
      ps.Author = "codemarks2"; 
      ps.Descript = ""; 
      ps.Version = "1.0"; 
      ps.WebRoot = "/plugin/user/webroot/"; 
      AssemblyFile af = new AssemblyFile(); 
      af.Name = "CodeMarks.Framework.Plugin.Adapter.User2"; 
      af.AdapterClassName = "CodeMarks.Framework.Plugin.Adapter.User.UserAdapter"; 
      ps.Items.Add(af); 
      this.config.PluginSettings.AddPlugin(ps); 
      this.config.AppSettings.Items.Add(new AppSetting("conn", ".\\nbaqn")); 
      this.config.AppSettings.Items.Add(new AppSetting("config", "frame.config")); 
      this.config.AppSettings.Items.Add(new AppSetting("catch", "sql")); 
    } 
  } 
} 
//FrameworkConfiguraconfig完整代码 
using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Xml; 
using System.Xml.Serialization; 
using System.IO; 
namespace cn.CodeMarks.Framework.Plugin 
{ 
  [Serializable] 
  [XmlRootAttribute("configuration", Namespace = "http://www.codemarks.net ", IsNullable = false)] 
  public class FrameworkConfiguration 
  { 
    public FrameworkConfiguration() 
    { 
      _PluginSettings = new PluginSettings(); 
      _appSettings = new AppSettings(); 
    } 
    private PluginSettings _PluginSettings; 
    /// <summary> 
    /// 插件配置 
    /// </summary> 
    
    public PluginSettings PluginSettings 
    { 
      get { return _PluginSettings; } 
      set { _PluginSettings = value; } 
    } 
    private AppSettings _appSettings; 
    public AppSettings AppSettings 
    { 
      get { return _appSettings; } 
      set { _appSettings = value; } 
    } 
  } 
} 
//PluginSettings完整代码 
using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Xml.Serialization; 
namespace cn.CodeMarks.Framework.Plugin 
{ 
  [Serializable] 
  public class PluginSettings 
  { 
    public PluginSettings() 
    { 
      _items = new List<PluginSetting>(); 
    } 
    private List<PluginSetting> _items; 
    
    [XmlElementAttribute(ElementName = "pluginSetting", IsNullable = false)] 
    public List<PluginSetting> Items 
    { 
      get { return _items; } 
      set { _items = value; } 
    } 
    public PluginSetting this[string pluginName] 
    { 
      get 
      { 
        return GetPlugin(pluginName); 
      } 
    } 
    /// <summary> 
    /// 根据插件名称获取插件 
    /// </summary> 
    /// <param name="plugName"></param> 
    /// <returns></returns> 
    public PluginSetting GetPlugin(string plugName) 
    { 
      PluginSetting ret = null; 
      foreach (PluginSetting plug in Items) 
      { 
        if (plugName == plug.PluginName) 
        { 
          ret = plug; 
          break; 
        } 
      } 
      return ret; 
    } 
    /// <summary> 
    /// 添加插件成功返回true 
    /// </summary> 
    /// <param name="plugin"></param> 
    /// <returns></returns> 
    public bool AddPlugin(PluginSetting plugin) 
    { 
      bool ret = false; 
      foreach (PluginSetting plug in Items) 
      { 
        if (plugin.PluginName == plug.PluginName) 
        { 
          ret = true; 
          break; 
        } 
      } 
      if (!ret) 
      { 
        Items.Add(plugin); 
      } 
      return ret; 
    } 
    /// <summary> 
    /// 移除插件,成功返回true 
    /// </summary> 
    /// <param name="pluginName"></param> 
    /// <returns></returns> 
    public bool ReMovePlugin(string pluginName) 
    { 
      bool ret = false; 
      foreach (PluginSetting plug in Items) 
      { 
        if (pluginName == plug.PluginName) 
        { 
          Items.Remove(plug); 
          ret = true; 
          break; 
        } 
      } 
      return ret; 
    } 
  } 
//PluginSetting完整代码 
  [Serializable] 
  public class PluginSetting 
  { 
    public PluginSetting() 
    { 
      _items = new List<AssemblyFile>(); 
    } 
    private string _pluginName; 
    /// <summary> 
    /// 插件名称 
    /// </summary> 
    [XmlAttribute("name")] 
    public string PluginName 
    { 
      get { return _pluginName; } 
      set { _pluginName = value; } 
    } 
    private string _descript; 
    /// <summary> 
    /// 插件描述 
    /// </summary> 
    [XmlAttribute("descript")] 
    public string Descript 
    { 
      get { return _descript; } 
      set { _descript = value; } 
    } 
    private string _version; 
    /// <summary> 
    /// 插件版本 
    /// </summary> 
    [XmlAttribute("version")] 
    public string Version 
    { 
      get { return _version; } 
      set { _version = value; } 
    } 
    private string _author; 
    /// <summary> 
    /// 插件作者 
    /// </summary> 
    [XmlAttribute("author")] 
    public string Author 
    { 
      get { return _author; } 
      set { _author = value; } 
    } 
    private string webRoot; 
    /// <summary> 
    /// 页面路径 
    /// </summary> 
    [XmlAttribute("webroot")] 
    public string WebRoot 
    { 
      get { return webRoot; } 
      set { webRoot = value; } 
    } 
    private List<AssemblyFile> _items; 
    [XmlArrayAttribute("assemblyFiles")] 
    public List<AssemblyFile> Items 
    { 
      get { return _items; } 
      set { _items = value; } 
    } 
  } 
} 
//AssemblyFile完整代码 
using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Xml.Serialization; 
namespace cn.CodeMarks.Framework.Plugin 
{ 
  [Serializable] 
  public class AssemblyFile 
  { 
    string name; 
    [XmlAttribute("name")] 
    public string Name 
    { 
      get { return name; } 
      set { name = value; } 
    } 
    string descript; 
    [XmlAttribute("descript")] 
    public string Descript 
    { 
      get { return descript; } 
      set { descript = value; } 
    } 
    string adapterClassName; 
    [XmlAttribute("adapter")] 
    public string AdapterClassName 
    { 
      get { return adapterClassName; } 
      set { adapterClassName = value; } 
    } 
  } 
} 
//AppSettings完整代码 
//AppSetting完整代码 
using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Xml; 
using System.Xml.Serialization; 
namespace cn.CodeMarks.Framework.Plugin 
{ 
  public class AppSettings 
  { 
    public AppSettings() 
    { 
      _items = new List<AppSetting>(); 
    } 
    private List<AppSetting> _items; 
    [XmlElementAttribute(ElementName = "add", IsNullable = false)] 
    public List<AppSetting> Items 
    { 
      get { return _items; } 
      set { _items = value; } 
    } 
    /// <summary> 
    /// 根据key获取配置对象 
    /// </summary> 
    /// <param name="key"></param> 
    /// <returns></returns> 
    public AppSetting this[string key] 
    { 
      get 
      { 
        AppSetting ret = null; 
        foreach (AppSetting app in Items) 
        { 
          if (app.Key == key) 
          { 
            ret = app; 
            break; 
          } 
        } 
        return ret; 
      } 
    } 
    public AppSetting this[AppSetting appSetting] 
    { 
      set 
      { 
        bool isAlready = false; 
        foreach (AppSetting app in Items) 
        { 
          if (app.Key == appSetting.Key) 
          { 
            isAlready = true; 
            break; 
          } 
        } 
        if (!isAlready) 
        { 
          Items.Add(appSetting); 
        } 
      } 
    } 
  } 
  /// <summary> 
  /// 应用程序设置 
  /// </summary>                       
  public class AppSetting 
  { 
    public AppSetting() 
    { 
    } 
    public AppSetting(string _key, string _value) 
    { 
      this.Key = _key; 
      this.Value = _value; 
    } 
    private string _key; 
    [XmlAttribute("key")] 
    public string Key 
    { 
      get { return _key; } 
      set { _key = value; } 
    } 
    private string value; 
    [XmlAttribute("value")] 
    public string Value 
    { 
      get { return this.value; } 
      set { this.value = value; } 
    } 
  } 
} 
//生成的xml文件 
<?xml version="1.0" encoding="utf-8"?> 
<configuration> 
 <pluginSettings> 
  <plugin name="UserPlugin" author="codemarks" descript="" version="1.0"  webroot="/plugin/user/web/"> 
   <assemblys> 
    <assembly name="CodeMarks.Framework.Plugin.Adapter.User" descript="">cn.CodeMarks.Framework.Plugin.Adapter.UserAdapter</assembly> 
    <assembly name="CodeMarks.Framework.Plugin.AddIn.User" descript=""/> 
    <assembly name="CodeMarks.Framework.Plugin.Model.User"  descript=""/> 
    <assembly name="CodeMarks.Framework.Plugin.View.User"  descript=""/> 
   </assemblys> 
  </plugin> 
 </pluginSettings> 
 <appSettings> 
  <add key="pluginRoot" value="/Plugin/"></add> 
 </appSettings> 
</configuration> 

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