C#操作INI文件的辅助类IniHelper

using System;using System.Collections;using System.Collections.Generic;using System.Runtime.InteropServices;using System.Text;namespace Eyuan.Common{ public static class INIHelper {  #region 读写INI文件相关  [DllImport("kernel32.dll", EntryPoint = "WritePrivateProfileString", CharSet = CharSet.Ansi)]  private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);  [DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileString", CharSet = CharSet.Ansi)]  private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);  [DllImport("kernel32")]  private static extern int GetPrivateProfileInt(string lpApplicationName, string lpKeyName, int nDefault, string lpFileName);  [DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileSectionNames", CharSet = CharSet.Ansi)]  private static extern int GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, int nSize, string filePath);  [DllImport("KERNEL32.DLL ", EntryPoint = "GetPrivateProfileSection", CharSet = CharSet.Ansi)]  private static extern int GetPrivateProfileSection(string lpAppName, byte[] lpReturnedString, int nSize, string filePath);  #endregion  #region 读写操作（字符串）  /// <summary>  /// 向INI写入数据  /// </summary>  /// <PARAM name="Section">节点名</PARAM>  /// <PARAM name="Key">键名</PARAM>  /// <PARAM name="Value">值（字符串）</PARAM>  public static void Write(string Section, string Key, string Value, string path)  {   WritePrivateProfileString(Section, Key, Value, path);  }  /// <summary>  /// 读取INI数据  /// </summary>  /// <PARAM name="Section">节点名</PARAM>  /// <PARAM name="Key">键名</PARAM>  /// <PARAM name="Path">值名</PARAM>  /// <returns>值（字符串）</returns>  public static string Read(string Section, string Key, string path)  {   StringBuilder temp = new StringBuilder(255);   int i = GetPrivateProfileString(Section, Key, "", temp, 255, path);   return temp.ToString();  }  #endregion  #region 配置节信息  /// <summary>  /// 读取一个ini里面所有的节  /// </summary>  /// <param name="sections"></param>  /// <param name="path"></param>  /// <returns>-1:没有节信息，0:正常</returns>  public static int GetAllSectionNames(out string[] sections, string path)  {   int MAX_BUFFER = 32767;   IntPtr pReturnedString = Marshal.AllocCoTaskMem(MAX_BUFFER);   int bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path);   if (bytesReturned == 0)   {    sections = null;    return -1;   }   string local = Marshal.PtrToStringAnsi(pReturnedString, (int)bytesReturned).ToString();   Marshal.FreeCoTaskMem(pReturnedString);   //use of Substring below removes terminating null for split   sections = local.Substring(0, local.Length - 1).Split('/0');   return 0;  }  /// <summary>  /// 返回指定配置文件下的节名称列表  /// </summary>  /// <param name="path"></param>  /// <returns></returns>  public static List<string> GetAllSectionNames(string path)  {   List<string> sectionList = new List<string>();   int MAX_BUFFER = 32767;   IntPtr pReturnedString = Marshal.AllocCoTaskMem(MAX_BUFFER);   int bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path);   if (bytesReturned != 0)   {    string local = Marshal.PtrToStringAnsi(pReturnedString, (int)bytesReturned).ToString();    Marshal.FreeCoTaskMem(pReturnedString);    sectionList.AddRange(local.Substring(0, local.Length - 1).Split('/0'));   }   return sectionList;  }  /// <summary>  /// 得到某个节点下面所有的key和value组合  /// </summary>  /// <param name="section">指定的节名称</param>  /// <param name="keys">Key数组</param>  /// <param name="values">Value数组</param>  /// <param name="path">INI文件路径</param>  /// <returns></returns>  public static int GetAllKeyValues(string section, out string[] keys, out string[] values, string path)  {   byte[] b = new byte[65535];//配置节下的所有信息   GetPrivateProfileSection(section, b, b.Length, path);   string s = System.Text.Encoding.Default.GetString(b);//配置信息   string[] tmp = s.Split((char)0);//Key/Value信息   List<string> result = new List<string>();   foreach (string r in tmp)   {    if (r != string.Empty)     result.Add(r);   }   keys = new string[result.Count];   values = new string[result.Count];   for (int i = 0; i < result.Count; i++)   {    string[] item = result[i].Split(new char[] { '=' });//Key=Value格式的配置信息    //Value字符串中含有=的处理，    //一、Value加""，先对""处理    //二、Key后续的都为Value    if (item.Length > 2)    {     keys[i] = item[0].Trim();     values[i] = result[i].Substring(keys[i].Length + 1);    }    if (item.Length == 2)//Key=Value    {     keys[i] = item[0].Trim();     values[i] = item[1].Trim();    }    else if (item.Length == 1)//Key=    {     keys[i] = item[0].Trim();     values[i] = "";    }    else if (item.Length == 0)    {     keys[i] = "";     values[i] = "";    }   }   return 0;  }  /// <summary>  /// 得到某个节点下面所有的key  /// </summary>  /// <param name="section">指定的节名称</param>  /// <param name="keys">Key数组</param>  /// <param name="path">INI文件路径</param>  /// <returns></returns>  public static int GetAllKeys(string section, out string[] keys, string path)  {   byte[] b = new byte[65535];   GetPrivateProfileSection(section, b, b.Length, path);   string s = System.Text.Encoding.Default.GetString(b);   string[] tmp = s.Split((char)0);   ArrayList result = new ArrayList();   foreach (string r in tmp)   {    if (r != string.Empty)     result.Add(r);   }   keys = new string[result.Count];   for (int i = 0; i < result.Count; i++)   {    string[] item = result[i].ToString().Split(new char[] { '=' });    if (item.Length == 2)    {     keys[i] = item[0].Trim();    }    else if (item.Length == 1)    {     keys[i] = item[0].Trim();    }    else if (item.Length == 0)    {     keys[i] = "";    }   }   return 0;  }  /// <summary>  /// 获取指定节下的Key列表  /// </summary>  /// <param name="section">指定的节名称</param>  /// <param name="path">配置文件名称</param>  /// <returns>Key列表</returns>  public static List<string> GetAllKeys(string section, string path)  {   List<string> keyList = new List<string>();   byte[] b = new byte[65535];   GetPrivateProfileSection(section, b, b.Length, path);   string s = System.Text.Encoding.Default.GetString(b);   string[] tmp = s.Split((char)0);   List<string> result = new List<string>();   foreach (string r in tmp)   {    if (r != string.Empty)     result.Add(r);   }   for (int i = 0; i < result.Count; i++)   {    string[] item = result[i].Split(new char[] { '=' });    if (item.Length == 2 || item.Length == 1)    {     keyList.Add(item[0].Trim());    }    else if (item.Length == 0)    {     keyList.Add(string.Empty);    }   }   return keyList;  }  /// <summary>  /// 获取值  /// </summary>  /// <param name="section"></param>  /// <param name="path"></param>  /// <returns></returns>  public static List<string> GetAllValues(string section, string path)  {   List<string> keyList = new List<string>();   byte[] b = new byte[65535];   GetPrivateProfileSection(section, b, b.Length, path);   string s = System.Text.Encoding.Default.GetString(b);   string[] tmp = s.Split((char)0);   List<string> result = new List<string>();   foreach (string r in tmp)   {    if (r != string.Empty)     result.Add(r);   }   for (int i = 0; i < result.Count; i++)   {    string[] item = result[i].Split(new char[] { '=' });    if (item.Length == 2 || item.Length == 1)    {     keyList.Add(item[1].Trim());    }    else if (item.Length == 0)    {     keyList.Add(string.Empty);    }   }   return keyList;  }    #endregion  #region 通过值查找键（一个节中的键唯一，可能存在多个键值相同，因此反查的结果可能为多个）  /// <summary>  /// 第一个键  /// </summary>  /// <param name="section"></param>  /// <param name="path"></param>  /// <param name="value"></param>  /// <returns></returns>  public static string GetFirstKeyByValue(string section, string path, string value)  {   foreach (string key in GetAllKeys(section, path))   {    if (ReadString(section, key, "", path) == value)    {     return key;    }   }   return string.Empty;  }  /// <summary>  /// 所有键  /// </summary>  /// <param name="section"></param>  /// <param name="path"></param>  /// <param name="value"></param>  /// <returns></returns>  public static List<string> GetKeysByValue(string section, string path, string value)  {   List<string > keys = new List<string>();   foreach (string key in GetAllKeys(section, path))   {    if (ReadString(section, key, "", path) == value)    {     keys.Add(key);    }   }   return keys;  }  #endregion  #region 具体类型的读写  #region string  /// <summary>  ///   /// </summary>  /// <param name="sectionName"></param>  /// <param name="keyName"></param>  /// <param name="defaultValue" />  /// <param name="path"></param>  /// <returns></returns>  public static string ReadString(string sectionName, string keyName, string defaultValue, string path)  {   const int MAXSIZE = 255;   StringBuilder temp = new StringBuilder(MAXSIZE);   GetPrivateProfileString(sectionName, keyName, defaultValue, temp, 255, path);   return temp.ToString();  }  /// <summary>  ///   /// </summary>  /// <param name="sectionName"></param>  /// <param name="keyName"></param>  /// <param name="value"></param>  /// <param name="path"></param>  public static void WriteString(string sectionName, string keyName, string value, string path)  {   WritePrivateProfileString(sectionName, keyName, value, path);  }  #endregion  #region Int  /// <summary>  ///   /// </summary>  /// <param name="sectionName"></param>  /// <param name="keyName"></param>  /// <param name="defaultValue"></param>  /// <param name="path"></param>  /// <returns></returns>  public static int ReadInteger(string sectionName, string keyName, int defaultValue, string path)  {   return GetPrivateProfileInt(sectionName, keyName, defaultValue, path);  }  /// <summary>  ///   /// </summary>  /// <param name="sectionName"></param>  /// <param name="keyName"></param>  /// <param name="value"></param>  /// <param name="path"></param>  public static void WriteInteger(string sectionName, string keyName, int value, string path)  {   WritePrivateProfileString(sectionName, keyName, value.ToString(), path);  }  #endregion  #region bool  /// <summary>  /// 读取布尔值  /// </summary>  /// <param name="sectionName"></param>  /// <param name="keyName"></param>  /// <param name="defaultValue"></param>  /// <param name="path"></param>  /// <returns></returns>  public static bool ReadBoolean(string sectionName, string keyName, bool defaultValue, string path)  {   int temp = defaultValue ? 1 : 0;   int result = GetPrivateProfileInt(sectionName, keyName, temp, path);   return (result == 0 ? false : true);  }  /// <summary>  /// 写入布尔值  /// </summary>  /// <param name="sectionName"></param>  /// <param name="keyName"></param>  /// <param name="value"></param>  /// <param name="path"></param>  public static void WriteBoolean(string sectionName, string keyName, bool value, string path)  {   string temp = value ? "1 " : "0 ";   WritePrivateProfileString(sectionName, keyName, temp, path);  }  #endregion  #endregion  #region 删除操作  /// <summary>  /// 删除指定项  /// </summary>  /// <param name="sectionName"></param>  /// <param name="keyName"></param>  /// <param name="path"></param>  public static void DeleteKey(string sectionName, string keyName, string path)  {   WritePrivateProfileString(sectionName, keyName, null, path);  }  /// <summary>  /// 删除指定节下的所有项  /// </summary>  /// <param name="sectionName"></param>  /// <param name="path"></param>  public static void EraseSection(string sectionName, string path)  {   WritePrivateProfileString(sectionName, null, null, path);  }  #endregion  #region 判断节、键是否存在  /// <summary>  /// 指定节知否存在  /// </summary>  /// <param name="section"></param>  /// <param name="fileName"></param>  /// <returns></returns>  public static bool ExistSection(string section, string fileName)  {   string[] sections = null;   GetAllSectionNames(out sections, fileName);   if (sections != null)   {    foreach (var s in sections)    {     if (s == section)     {      return true;     }    }   }   return false;  }  /// <summary>  /// 指定节下的键是否存在  /// </summary>  /// <param name="section"></param>  /// <param name="key"></param>  /// <param name="fileName"></param>  /// <returns></returns>  public static bool ExistKey(string section, string key, string fileName)  {   string[] keys = null;   GetAllKeys(section, out keys, fileName);   if (keys != null)   {    foreach (var s in keys)    {     if (s == key)     {      return true;     }    }   }   return false;  }  #endregion  #region 同一Section下添加多个Key/Value  /// <summary>  ///   /// </summary>  /// <param name="section"></param>  /// <param name="keyList"></param>  /// <param name="valueList"></param>  /// <param name="path"></param>  /// <returns></returns>  public static bool AddSectionWithKeyValues(string section, List<string> keyList, List<string> valueList, string path)  {   bool bRst = true;   //判断Section是否已经存在，如果存在，返回false   //已经存在，则更新   //if (GetAllSectionNames(path).Contains(section))   //{   // return false;   //}   //判断keyList中是否有相同的Key，如果有，返回false   //添加配置信息   for (int i = 0; i < keyList.Count; i++)   {    WriteString(section, keyList[i], valueList[i], path);   }   return bRst;  }  #endregion }}