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      .Net 配置的简陋解决方案,.net解决方案


          公司是做CS产品的, 最近分配给我一个活, 要求:
          1. 公司程序启动时, 检测是否有配置文件, 没有的话则按默认值创建一个
          2. 配置文件要加密, 不能让客户随便看到里面的参数
          3. 配置文件要有配套的GUI配置工具, 因为现场实施人员嫌XML配置麻烦

          如果只有一个产品需要这个功能, 把每个配置项的读写功能硬编码写到工具里就完事了, 但公司有好几个产品都需要这个, 不得不写一个通用的工具类

          这个工作还解决了两个问题:
          a. 以前设置项都配置在 app.config 里, 每次升级都会覆盖原来的设置, 所以现场人员都必须先将 app.config复制出来.
          b. app.config 里新增了配置项, 现场实施人员必须仔细对比, 将新增项人工放入原来的app.config

          现在的做法是, 配置文件ConfigSetting.xml并不在安装包中, 所以卸载升级都不会影响它; 程序第一次启动时, 会按默认值生成一个ConfigSetting.xml; 以后程序启动的时候, 假如有新增的配置项, 则将其加入ConfigSetting.xml

          我把涉及的两个类都放在了一个文件, 这样引入一个文件即可

          using System;
          using System.Collections.Generic;
          using System.Xml.Linq;
          using System.Security.Cryptography;
          using System.IO;
          /// <summary>
          /// 设置项的帮助类
          /// </summary>
          public class ConfigSettingTool
          {
              /// <summary>
              /// 保存读取时, 是否加密解密; 设为false, 可以方便调试
              /// 其实也只能防小白, 随便反编译一下就啥都漏出来了
              /// </summary>
              private static bool isEncrypt = false;
      
              /// <summary>
              /// 默认的配置文件名
              /// </summary>
              public static readonly string DefaultXmlFileName = "ConfigSetting.xml";
      
              /// <summary>
              /// 获取XDocument, 解密失败、XML结构不合理, 都会根据模板重新生成一个
              /// </summary>
              /// <param name="xmlFileName"></param>
              /// <param name="msg"></param>
              /// <returns>确保返回如下格式
              /// <?xml version="1.0" encoding="utf-8" standalone="yes"?>
              /// <Setting>
              ///   <SingleSetting></SingleSetting>
              /// </Setting>
              /// </returns>
              public static XDocument GetXDocument(string xmlFileName, out string msg)
              {
                  msg = null;
                  if (!System.IO.File.Exists(xmlFileName))
                  {
                      msg = "配置文件不存在, 创建默认配置文件";
                      return new XDocument(new XDeclaration("1.0", "utf-8", "yes"), new XElement("Setting", new XElement("SingleSetting")));
                  }
                  try
                  {
                      var textContent = System.IO.File.ReadAllText(xmlFileName);
                      textContent = isEncrypt ? Decrypt(textContent) : textContent;
                      var xdoc = XDocument.Parse(textContent);
                      if (xdoc.Root.Name != "Setting")
                      {
                          throw new Exception("根节点不是 Setting");
                      }
                      if (xdoc.Root.Element("SingleSetting") == null)
                      {
                          throw new Exception("没有 SingleSetting 节点");
                      }
                      return xdoc;
                  }
                  catch
                  {
                      msg = "配置文件不是标准格式, 删除后, 创建默认配置文件";
                      return new XDocument(new XDeclaration("1.0", "utf-8", "yes"), new XElement("Setting", new XElement("SingleSetting")));
                  }
              }
      
      
              /// <summary>
              /// 将xml信息读出到settingArray, 如果缺少某项设定则增加到xdoc
              /// </summary>
              /// <param name="xdoc"></param>
              /// <param name="settingList">通常就是GlobalSetting.DefaultGlobalSettingArray</param>
              public static void ReadValueToSettingArray(XDocument xdoc, List<ConfigureItemModel> settingArray)
              {
                  var singleSettingElement = xdoc.Root.Element("SingleSetting");
                  foreach (var configureItem in settingArray)
                  {
                      configureItem.ErrorMsg = null;
                      var element = singleSettingElement.Element(configureItem.Name);
                      if (element == null)
                      {
                          element = new XElement(configureItem.Name, configureItem.DefaultValue, new XAttribute("Caption", configureItem.Caption), new XAttribute("Description", configureItem.Description), new XAttribute("DefaultValue", configureItem.DefaultValue), new XAttribute("CanBeEmpty", configureItem.CanBeEmpty));
                          singleSettingElement.Add(element);
                      }
                      configureItem.Value = string.IsNullOrWhiteSpace(element.Value) ? "" : element.Value.Trim();
                  }
              }
      
      
              /// <summary>
              /// 将xml信息读出到settingArray
              /// </summary>
              /// <param name="xdoc"></param>
              /// <param name="settingList">通常就是GlobalSetting.DefaultGlobalSettingArray</param>
              public static void ReadConfig(XDocument xdoc, out List<ConfigureItemModel> settingList)
              {
                  settingList = new List<ConfigureItemModel>();
      
                  var singleSettingElement = xdoc.Root.Element("SingleSetting");
                  foreach (var element in singleSettingElement.Elements())
                  {
                      var captionAttribute = element.Attribute("Caption");
                      var caption = captionAttribute != null ? captionAttribute.Value : "";
      
                      var name = element.Name.ToString();
                      var value = element.Value.ToString();
      
                      var descriptionAttribute = element.Attribute("Description");
                      var description = descriptionAttribute != null ? descriptionAttribute.Value : "";
      
                      var defaultValueAttribute = element.Attribute("DefaultValue");
                      var defaultValue = defaultValueAttribute != null ? defaultValueAttribute.Value : "";
      
                      var canBeEmpty = false;
                      try
                      {
                          canBeEmpty = bool.Parse(element.Attribute("CanBeEmpty").Value);
                      }
                      catch { }
      
                      var errorMsgAttribute = element.Attribute("ErrorMsg");
                      var errorMsg = errorMsgAttribute != null ? errorMsgAttribute.Value : "";
      
      
                      var configureItem = new ConfigureItemModel(caption, name, defaultValue, description, canBeEmpty) { Value = value, ErrorMsg = errorMsg };
                      settingList.Add(configureItem);
                  }
              }
      
      
              /// <summary>
              /// 尝试解析设置内容 到 目标class
              /// </summary>
              /// <param name="settingList">通常就是GlobalSetting.DefaultGlobalSettingArray, 配置项设置不合理时, 会将错误信息保存到ErrorMsg</param>
              /// <param name="targetSettingClass">通常就是GlobalSetting</param>
              /// <returns>成功, true; 失败: false</returns>
              public static bool TryParseConfig(List<ConfigureItemModel> settingArray, Type targetSettingClass)
              {
                  bool isAllSuccess = true;
                  foreach (var configureItem in settingArray)
                  {
                      configureItem.ErrorMsg = null;
                      configureItem.Value = string.IsNullOrWhiteSpace(configureItem.Value) ? "" : configureItem.Value.Trim();
                      if (configureItem.Value == "" && configureItem.CanBeEmpty == false)
                      {
                          configureItem.ErrorMsg += "该项值不能为空, 请手动填写该值;";
                          isAllSuccess = false;
                          continue;
                      }
      
                      var property = targetSettingClass.GetProperty(configureItem.Name);
                      //如果 targetSettingClass 没有对应的静态属性, 则跳过
                      if (property == null)
                      {
                          continue;
                      }
                      object value = null;
                      try
                      {
                          value = Convert.ChangeType(configureItem.Value, property.PropertyType);
                          property.SetValue(null, value, null);
                      }
                      catch
                      {
                          configureItem.ErrorMsg += configureItem.Value + "不能转换为" + property.PropertyType.Name + ", 请重新填写该值;";
                          isAllSuccess = false;
                          continue;
                      }
                  }
                  return isAllSuccess;
              }
      
      
              /// <summary>
              /// 写入
              /// </summary>
              /// <param name="xmlFileName"></param>
              /// <param name="settingList">通常就是GlobalSetting.DefaultGlobalSettingArray</param>
              /// <returns>成功, null</returns>
              public static bool TrySaveToXML(string xmlFileName, List<ConfigureItemModel> settingArray, out string msg)
              {
                  msg = null;
                  var xdoc = GetXDocument(xmlFileName, out  msg);//原文件读出错误, 忽略即可, 因为settingArray会自动填充
                  var singleSettingElement = xdoc.Root.Element("SingleSetting");
      
                  foreach (var configureItem in settingArray)
                  {
                      var element = singleSettingElement.Element(configureItem.Name);
                      if (element == null)
                      {
                          element = new XElement(configureItem.Name, configureItem.Value);
                          singleSettingElement.Add(element);
                      }
                      else
                      {
                          element.Value = configureItem.Value ?? "";
                      }
                      element.RemoveAttributes();
                      element.Add(new XAttribute("Caption", configureItem.Caption));
                      element.Add(new XAttribute("Description", configureItem.Description));
                      element.Add(new XAttribute("DefaultValue", configureItem.DefaultValue));
                      element.Add(new XAttribute("CanBeEmpty", configureItem.CanBeEmpty));
                      if (!string.IsNullOrWhiteSpace(configureItem.ErrorMsg))
                      {
                          element.Add(new XAttribute("ErrorMsg", configureItem.ErrorMsg));
                      }
                  }
      
      
                  var textContent = xdoc.ToString();
                  textContent = isEncrypt ? Encrypt(textContent) : textContent;
                  try
                  {
                      System.IO.File.WriteAllText(xmlFileName, textContent);
                      return true;
                  }
                  catch (Exception ex)
                  {
                      msg= "保存失败:" + ex.Message;
                      return false;
                  }
              }
      
              #region 加密解密部分
              private static byte[] DESKey = new byte[] { 11, 69, 93, 102, 172, 41, 18, 12 };
              private static byte[] DESIV = new byte[] { 75, 77, 46, 197, 78, 157, 23, 36 };
      
              /// <summary>
              /// 加密
              /// </summary>
              private static string Encrypt(string source)
              {
                  string reValue = "";
                  DESCryptoServiceProvider objDes = new DESCryptoServiceProvider();
                  MemoryStream objMemoryStream = new MemoryStream();
                  CryptoStream objCrytoStream = new CryptoStream(objMemoryStream, objDes.CreateEncryptor(DESKey, DESIV), CryptoStreamMode.Write);
                  StreamWriter objStreamWriter = new StreamWriter(objCrytoStream);
                  objStreamWriter.Write(source);
                  objStreamWriter.Flush();
                  objCrytoStream.FlushFinalBlock();
                  objMemoryStream.Flush();
                  reValue = Convert.ToBase64String(objMemoryStream.GetBuffer(), 0, (int)objMemoryStream.Length);
                  return reValue;
              }
      
              /// <summary>
              /// 解密
              /// </summary>
              private static string Decrypt(string source)
              {
                  string reValue = "";
                  DESCryptoServiceProvider objDES = new DESCryptoServiceProvider();
                  byte[] Input = Convert.FromBase64String(source);
                  MemoryStream objMemoryStream = new MemoryStream(Input);
                  CryptoStream objCryptoStream = new CryptoStream(objMemoryStream, objDES.CreateDecryptor(DESKey, DESIV), CryptoStreamMode.Read);
                  StreamReader objStreamReader = new StreamReader(objCryptoStream);
                  reValue = objStreamReader.ReadToEnd();
                  return reValue;
              }
              #endregion
          }
      
          /// <summary>
          /// 单个设置项
          /// </summary>
          /// <remarks>由于XML中不能保存null, 所以所有属性都不会被设置为null</remarks>
          public class ConfigureItemModel
          {
              /// <summary>
              /// 单个设置项
              /// </summary>
              /// <param name="captionParam">显示名称</param>
              /// <param name="nameParam">参数名称</param>
              /// <param name="defaultValueParam">默认值</param>
              /// <param name="descriptionParam">描述, 该项不设定时候, 显示默认值</param>
              /// <param name="canBeEmptyParam">能否为空字符串</param>
              public ConfigureItemModel(string captionParam, string nameParam, string defaultValueParam, string descriptionParam = "", bool canBeEmptyParam = false)
              {
                  Caption = captionParam;
                  Name = nameParam;
                  Description = descriptionParam;
                  DefaultValue = defaultValueParam;
                  CanBeEmpty = canBeEmptyParam;
              }
      
      
      
              private string caption = "";
              /// <summary>
              /// 显示名称
              /// </summary>
              public string Caption
              {
                  get { return caption; }
                  set { caption = string.IsNullOrWhiteSpace(value) ? "" : value; }
              }
      
      
      
              private string name = "";
              /// <summary>
              /// 参数名称
              /// </summary>
              public string Name
              {
                  get { return name; }
                  set { name = string.IsNullOrWhiteSpace(value) ? "" : value; ; }
              }
      
      
              private string description = "";
              /// <summary>
              /// 说明, 如果该值没有赋值, 则显示DefaultValue
              /// </summary>
              public string Description
              {
                  get { return string.IsNullOrWhiteSpace(description) ? defaultValue : description; }
                  set { description = string.IsNullOrWhiteSpace(value) ? "" : value; }
              }
      
      
              private string defaultValue = "";
              /// <summary>
              /// 默认值
              /// </summary>
              public string DefaultValue
              {
                  get { return defaultValue; }
                  set { defaultValue = string.IsNullOrWhiteSpace(value) ? "" : value; }
              }
      
      
              /// <summary>
              /// 能否为空字符串
              /// </summary>
              public bool CanBeEmpty { get; set; }
      
              /// <summary>
              /// 能否为空字符串 的字符串形式
              /// </summary>
              public string CanBeEmptyString { get { return CanBeEmpty ? "" : ""; } }
      
      
              private string innerValue = "";
              /// <summary>
              ////// </summary>
              public string Value
              {
                  get { return innerValue; }
                  set { innerValue = string.IsNullOrWhiteSpace(value) ? "" : value; ; }
              }
      
      
              private string errorMsg = "";
              /// <summary>
              /// 错误信息
              /// </summary>
              public string ErrorMsg
              {
                  get { return errorMsg; }
                  set { errorMsg = string.IsNullOrWhiteSpace(value) ? "" : value; ; }
              }
      
          }
      View Code

       

         产品里建一个 GlobalSetting 类, 里面的配置项都必须是  static 属性, 然后加入 public static List<ConfigureItemModel> DefaultGlobalSettingArray 保存默认设置

          /// <summary>
          /// 全局设定
          /// </summary>
          /// <remarks>所有属性都必须是 static , 即 类属性</remarks>
          public class GlobalSetting
          {
              public static List<ConfigureItemModel> DefaultGlobalSettingArray = new List<ConfigureItemModel>()
              {
                  new ConfigureItemModel("数据库的主机地址","ConnectionStringHost", "127.0.0.1"),
              };
      
              /// <summary>
              /// 数据库的主机地址
              /// </summary>
              public static string ConnectionStringHost { get; set; }
          }
      View Code

       

        具体的示例请参考 ConfigSettingToolTest, 第一次运行时会报错: 升级地址 不能为空, 使用  配置文件编辑工具2.exe 为其赋值后, 就可以正常启动了

       

      ConfigSettingToolTest              ConfigEditer

       

      www.1click-soft.comtruehttp://www.1click-soft.com/Asp_Netjc/1316439.htmlTechArticle.Net 配置的简陋解决方案,.net解决方案 公司是做CS产品的, 最近分配给我一个活, 要求: 1. 公司程序启动时, 检测是否有配置文件, 没有的话则...

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