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- //************************************************************************
- // author: yuzhengyang
- // date: 2018.3.27 - 2018.6.3
- // desc: 工具描述
- // Copyright (c) yuzhengyang. All rights reserved.
- //************************************************************************
- using System;
- using System.Runtime.InteropServices;
- using System.Text;
- namespace Azylee.Core.IOUtils.TxtUtils
- {
- public class IniTool
- {
- /*
- * 针对INI文件的API操作方法,其中的节点(Section)、键(KEY)都不区分大小写
- * 如果指定的INI文件不存在,会自动创建该文件。
- *
- * CharSet定义的时候使用了什么类型,在使用相关方法时必须要使用相应的类型
- * 例如 GetPrivateProfileSectionNames声明为CharSet.Auto,那么就应该使用 Marshal.PtrToStringAuto来读取相关内容
- * 如果使用的是CharSet.Ansi,就应该使用Marshal.PtrToStringAnsi来读取内容
- *
- */
- #region API声明
- /// <summary>
- /// 获取所有节点名称(Section)
- /// </summary>
- /// <param name="lpszReturnBuffer">存放节点名称的内存地址,每个节点之间用\0分隔</param>
- /// <param name="nSize">内存大小(characters)</param>
- /// <param name="lpFileName">Ini文件</param>
- /// <returns>内容的实际长度,为0表示没有内容,为nSize-2表示内存大小不够</returns>
- [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
- private static extern uint GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, uint nSize, string lpFileName);
- /// <summary>
- /// 获取某个指定节点(Section)中所有KEY和Value
- /// </summary>
- /// <param name="lpAppName">节点名称</param>
- /// <param name="lpReturnedString">返回值的内存地址,每个之间用\0分隔</param>
- /// <param name="nSize">内存大小(characters)</param>
- /// <param name="lpFileName">Ini文件</param>
- /// <returns>内容的实际长度,为0表示没有内容,为nSize-2表示内存大小不够</returns>
- [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
- private static extern uint GetPrivateProfileSection(string lpAppName, IntPtr lpReturnedString, uint nSize, string lpFileName);
- /// <summary>
- /// 读取INI文件中指定的Key的值
- /// </summary>
- /// <param name="lpAppName">节点名称。如果为null,则读取INI中所有节点名称,每个节点名称之间用\0分隔</param>
- /// <param name="lpKeyName">Key名称。如果为null,则读取INI中指定节点中的所有KEY,每个KEY之间用\0分隔</param>
- /// <param name="lpDefault">读取失败时的默认值</param>
- /// <param name="lpReturnedString">读取的内容缓冲区,读取之后,多余的地方使用\0填充</param>
- /// <param name="nSize">内容缓冲区的长度</param>
- /// <param name="lpFileName">INI文件名</param>
- /// <returns>实际读取到的长度</returns>
- [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
- private static extern uint GetPrivateProfileString(string lpAppName, string lpKeyName, string lpDefault, [In, Out] char[] lpReturnedString, uint nSize, string lpFileName);
- //另一种声明方式,使用 StringBuilder 作为缓冲区类型的缺点是不能接受\0字符,会将\0及其后的字符截断,
- //所以对于lpAppName或lpKeyName为null的情况就不适用
- [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
- private static extern uint GetPrivateProfileString(string lpAppName, string lpKeyName, string lpDefault, StringBuilder lpReturnedString, uint nSize, string lpFileName);
- //再一种声明,使用string作为缓冲区的类型同char[]
- [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
- private static extern uint GetPrivateProfileString(string lpAppName, string lpKeyName, string lpDefault, string lpReturnedString, uint nSize, string lpFileName);
- /// <summary>
- /// 将指定的键值对写到指定的节点,如果已经存在则替换。
- /// </summary>
- /// <param name="lpAppName">节点,如果不存在此节点,则创建此节点</param>
- /// <param name="lpString">Item键值对,多个用\0分隔,形如key1=value1\0key2=value2
- /// <para>如果为string.Empty,则删除指定节点下的所有内容,保留节点</para>
- /// <para>如果为null,则删除指定节点下的所有内容,并且删除该节点</para>
- /// </param>
- /// <param name="lpFileName">INI文件</param>
- /// <returns>是否成功写入</returns>
- [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
- [return: MarshalAs(UnmanagedType.Bool)] //可以没有此行
- private static extern bool WritePrivateProfileSection(string lpAppName, string lpString, string lpFileName);
- /// <summary>
- /// 将指定的键和值写到指定的节点,如果已经存在则替换
- /// </summary>
- /// <param name="lpAppName">节点名称</param>
- /// <param name="lpKeyName">键名称。如果为null,则删除指定的节点及其所有的项目</param>
- /// <param name="lpString">值内容。如果为null,则删除指定节点中指定的键。</param>
- /// <param name="lpFileName">INI文件</param>
- /// <returns>操作是否成功</returns>
- [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- private static extern bool WritePrivateProfileString(string lpAppName, string lpKeyName, string lpString, string lpFileName);
- #endregion
- #region 封装
- /// <summary>
- /// 读取INI文件中指定INI文件中的所有节点名称(Section)
- /// </summary>
- /// <param name="iniFile">Ini文件</param>
- /// <returns>所有节点,没有内容返回string[0]</returns>
- public static string[] GetAllSectionNames(string iniFile)
- {
- uint MAX_BUFFER = 32767; //默认为32767
- string[] sections = new string[0]; //返回值
- //申请内存
- IntPtr pReturnedString = Marshal.AllocCoTaskMem((int)MAX_BUFFER * sizeof(char));
- uint bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, iniFile);
- if (bytesReturned != 0)
- {
- //读取指定内存的内容
- string local = Marshal.PtrToStringAuto(pReturnedString, (int)bytesReturned).ToString();
- //每个节点之间用\0分隔,末尾有一个\0
- sections = local.Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
- }
- //释放内存
- Marshal.FreeCoTaskMem(pReturnedString);
- return sections;
- }
- /// <summary>
- /// 获取INI文件中指定节点(Section)中的所有条目(key=value形式)
- /// </summary>
- /// <param name="iniFile">Ini文件</param>
- /// <param name="section">节点名称</param>
- /// <returns>指定节点中的所有项目,没有内容返回string[0]</returns>
- public static string[] GetAllItems(string iniFile, string section)
- {
- //返回值形式为 key=value,例如 Color=Red
- uint MAX_BUFFER = 32767; //默认为32767
- string[] items = new string[0]; //返回值
- //分配内存
- IntPtr pReturnedString = Marshal.AllocCoTaskMem((int)MAX_BUFFER * sizeof(char));
- uint bytesReturned = GetPrivateProfileSection(section, pReturnedString, MAX_BUFFER, iniFile);
- if (!(bytesReturned == MAX_BUFFER - 2) || (bytesReturned == 0))
- {
- string returnedString = Marshal.PtrToStringAuto(pReturnedString, (int)bytesReturned);
- items = returnedString.Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
- }
- Marshal.FreeCoTaskMem(pReturnedString); //释放内存
- return items;
- }
- /// <summary>
- /// 获取INI文件中指定节点(Section)中的所有条目的Key列表
- /// </summary>
- /// <param name="iniFile">Ini文件</param>
- /// <param name="section">节点名称</param>
- /// <returns>如果没有内容,反回string[0]</returns>
- public static string[] GetAllItemKeys(string iniFile, string section)
- {
- string[] value = new string[0];
- const int SIZE = 1024 * 10;
- if (string.IsNullOrEmpty(section))
- {
- throw new ArgumentException("必须指定节点名称", "section");
- }
- char[] chars = new char[SIZE];
- uint bytesReturned = GetPrivateProfileString(section, null, null, chars, SIZE, iniFile);
- if (bytesReturned != 0)
- {
- value = new string(chars).Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
- }
- chars = null;
- return value;
- }
- /// <summary>
- /// 在INI文件中,将指定的键值对写到指定的节点,如果已经存在则替换
- /// </summary>
- /// <param name="iniFile">INI文件</param>
- /// <param name="section">节点,如果不存在此节点,则创建此节点</param>
- /// <param name="items">键值对,多个用\0分隔,形如key1=value1\0key2=value2</param>
- /// <returns></returns>
- public static bool WriteItems(string iniFile, string section, string items)
- {
- if (string.IsNullOrEmpty(section))
- {
- throw new ArgumentException("必须指定节点名称", "section");
- }
- if (string.IsNullOrEmpty(items))
- {
- throw new ArgumentException("必须指定键值对", "items");
- }
- return WritePrivateProfileSection(section, items, iniFile);
- }
- /// <summary>
- /// 在INI文件中,删除指定节点中的指定的键。
- /// </summary>
- /// <param name="iniFile">INI文件</param>
- /// <param name="section">节点</param>
- /// <param name="key">键</param>
- /// <returns>操作是否成功</returns>
- public static bool DeleteKey(string iniFile, string section, string key)
- {
- if (string.IsNullOrEmpty(section))
- {
- throw new ArgumentException("必须指定节点名称", "section");
- }
- if (string.IsNullOrEmpty(key))
- {
- throw new ArgumentException("必须指定键名称", "key");
- }
- return WritePrivateProfileString(section, key, null, iniFile);
- }
- /// <summary>
- /// 在INI文件中,删除指定的节点。
- /// </summary>
- /// <param name="iniFile">INI文件</param>
- /// <param name="section">节点</param>
- /// <returns>操作是否成功</returns>
- public static bool DeleteSection(string iniFile, string section)
- {
- if (string.IsNullOrEmpty(section))
- {
- throw new ArgumentException("必须指定节点名称", "section");
- }
- return WritePrivateProfileString(section, null, null, iniFile);
- }
- /// <summary>
- /// 在INI文件中,删除指定节点中的所有内容。
- /// </summary>
- /// <param name="iniFile">INI文件</param>
- /// <param name="section">节点</param>
- /// <returns>操作是否成功</returns>
- public static bool EmptySection(string iniFile, string section)
- {
- if (string.IsNullOrEmpty(section))
- {
- throw new ArgumentException("必须指定节点名称", "section");
- }
- return WritePrivateProfileSection(section, string.Empty, iniFile);
- }
- /// <summary>
- /// 测试
- /// </summary>
- private void Test()
- {
- string file = "F:\\TestIni.ini";
- //写入/更新键值
- WriteValue(file, "Desktop", "Color", "Red");
- WriteValue(file, "Desktop", "Width", "3270");
- WriteValue(file, "Toolbar", "Items", "Save,Delete,Open");
- WriteValue(file, "Toolbar", "Dock", "True");
- //写入一批键值
- WriteItems(file, "Menu", "File=文件\0View=视图\0Edit=编辑");
- //获取文件中所有的节点
- string[] sections = GetAllSectionNames(file);
- //获取指定节点中的所有项
- string[] items = GetAllItems(file, "Menu");
- //获取指定节点中所有的键
- string[] keys = GetAllItemKeys(file, "Menu");
- //获取指定KEY的值
- string value = GetValue(file, "Desktop", "color", null);
- //删除指定的KEY
- DeleteKey(file, "desktop", "color");
- //删除指定的节点
- DeleteSection(file, "desktop");
- //清空指定的节点
- EmptySection(file, "toolbar");
- }
- #endregion
- #region 写入方法
- [Obsolete]
- /// <summary>
- /// 在INI文件中,指定节点写入指定的键及值。如果已经存在,则替换。如果没有则创建。
- /// </summary>
- /// <param name="iniFile">INI文件</param>
- /// <param name="section">节点</param>
- /// <param name="key">键</param>
- /// <param name="value">值</param>
- /// <returns>操作是否成功</returns>
- public static bool WriteValue(string iniFile, string section, string key, string value)
- {
- if (string.IsNullOrEmpty(section))
- {
- throw new ArgumentException("必须指定节点名称", "section");
- }
- if (string.IsNullOrEmpty(key))
- {
- throw new ArgumentException("必须指定键名称", "key");
- }
- if (value == null)
- {
- throw new ArgumentException("值不能为null", "value");
- }
- return WritePrivateProfileString(section, key, value, iniFile);
- }
- public static bool Set(string iniFile, string section, string key, string value) { return WriteValue(iniFile, section, key, value); }
- public static bool Set(string iniFile, string section, string key, int value) { return WriteValue(iniFile, section, key, value.ToString()); }
- public static bool Set(string iniFile, string section, string key, long value) { return WriteValue(iniFile, section, key, value.ToString()); }
- public static bool Set(string iniFile, string section, string key, bool value) { return WriteValue(iniFile, section, key, value ? "true" : "false"); }
- #endregion
- #region 读取方法
- [Obsolete]
- /// <summary>
- /// 读取INI文件中指定KEY的字符串型值
- /// </summary>
- /// <param name="iniFile">Ini文件</param>
- /// <param name="section">节点名称</param>
- /// <param name="key">键名称</param>
- /// <param name="defaultValue">如果没此KEY所使用的默认值</param>
- /// <returns>读取到的值</returns>
- public static string GetValue(string iniFile, string section, string key, string defaultValue)
- {
- string value = defaultValue;
- const int SIZE = 1024 * 10;
- if (string.IsNullOrEmpty(section))
- {
- throw new ArgumentException("必须指定节点名称", "section");
- }
- if (string.IsNullOrEmpty(key))
- {
- throw new ArgumentException("必须指定键名称(key)", "key");
- }
- StringBuilder sb = new StringBuilder(SIZE);
- uint bytesReturned = GetPrivateProfileString(section, key, defaultValue, sb, SIZE, iniFile);
- if (bytesReturned != 0)
- {
- value = sb.ToString();
- }
- sb = null;
- return value;
- }
- public static string GetString(string iniFile, string section, string key, string defaultValue)
- {
- return GetValue(iniFile, section, key, defaultValue);
- }
- public static bool GetBool(string iniFile, string section, string key, bool defaultValue)
- {
- string value = GetString(iniFile, section, key, "");
- if (value.ToLower() == "true") return true;
- if (value.ToLower() == "false") return false;
- return defaultValue;
- }
- public static int GetInt(string iniFile, string section, string key, int defaultValue)
- {
- string value = GetString(iniFile, section, key, defaultValue.ToString());
- if (int.TryParse(value, out int result)) return result;
- return defaultValue;
- }
- public static long GetLong(string iniFile, string section, string key, long defaultValue)
- {
- string value = GetString(iniFile, section, key, defaultValue.ToString());
- if (long.TryParse(value, out long result)) return result;
- return defaultValue;
- }
- #endregion
- }
- }
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