.NET框架中是否有可以读写标准.ini文件的类:
[Section]
<keyname>=<value>
...
Delphi有TIniFile组件,我想知道是否有类似的c# ?
.NET框架中是否有可以读写标准.ini文件的类:
[Section]
<keyname>=<value>
...
Delphi有TIniFile组件,我想知道是否有类似的c# ?
当前回答
如果您只需要读访问而不需要写访问,并且您正在使用microsoft . extensions . configuration(默认情况下与ASP. extension . configuration捆绑在一起)。你可以使用NuGet包Microsoft.Extensions.Configuration.Ini将ini文件导入到你的配置设置中。
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddIniFile("SomeConfig.ini", optional: false);
Configuration = builder.Build();
}
其他回答
下面是我自己的版本,使用正则表达式。这段代码假设每个节名都是唯一的——如果不是这样的话——用List替换Dictionary是有意义的。此函数支持.ini文件注释,从';'字符开始。Section正常启动[Section],键值对也正常出现“key = value”。与节相同的假设-键名是唯一的。
/// <summary>
/// Loads .ini file into dictionary.
/// </summary>
public static Dictionary<String, Dictionary<String, String>> loadIni(String file)
{
Dictionary<String, Dictionary<String, String>> d = new Dictionary<string, Dictionary<string, string>>();
String ini = File.ReadAllText(file);
// Remove comments, preserve linefeeds, if end-user needs to count line number.
ini = Regex.Replace(ini, @"^\s*;.*$", "", RegexOptions.Multiline);
// Pick up all lines from first section to another section
foreach (Match m in Regex.Matches(ini, "(^|[\r\n])\\[([^\r\n]*)\\][\r\n]+(.*?)(\\[([^\r\n]*)\\][\r\n]+|$)", RegexOptions.Singleline))
{
String sectionName = m.Groups[2].Value;
Dictionary<String, String> lines = new Dictionary<String, String>();
// Pick up "key = value" kind of syntax.
foreach (Match l in Regex.Matches(ini, @"^\s*(.*?)\s*=\s*(.*?)\s*$", RegexOptions.Multiline))
{
String key = l.Groups[1].Value;
String value = l.Groups[2].Value;
// Open up quotation if any.
value = Regex.Replace(value, "^\"(.*)\"$", "$1");
if (!lines.ContainsKey(key))
lines[key] = value;
}
if (!d.ContainsKey(sectionName))
d[sectionName] = lines;
}
return d;
}
joerage回答中的代码是鼓舞人心的。
不幸的是,它改变了键的字符大小写,并且不处理注释。所以我写了一些足够健壮的东西,可以读取(只)非常脏的INI文件,并允许按原样检索密钥。
它使用一些LINQ,一个嵌套的不区分大小写的字符串字典来存储节,键和值,并一次性读取文件。
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class IniReader
{
Dictionary<string, Dictionary<string, string>> ini = new Dictionary<string, Dictionary<string, string>>(StringComparer.InvariantCultureIgnoreCase);
public IniReader(string file)
{
var txt = File.ReadAllText(file);
Dictionary<string, string> currentSection = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase);
ini[""] = currentSection;
foreach(var line in txt.Split(new[]{"\n"}, StringSplitOptions.RemoveEmptyEntries)
.Where(t => !string.IsNullOrWhiteSpace(t))
.Select(t => t.Trim()))
{
if (line.StartsWith(";"))
continue;
if (line.StartsWith("[") && line.EndsWith("]"))
{
currentSection = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase);
ini[line.Substring(1, line.LastIndexOf("]") - 1)] = currentSection;
continue;
}
var idx = line.IndexOf("=");
if (idx == -1)
currentSection[line] = "";
else
currentSection[line.Substring(0, idx)] = line.Substring(idx + 1);
}
}
public string GetValue(string key)
{
return GetValue(key, "", "");
}
public string GetValue(string key, string section)
{
return GetValue(key, section, "");
}
public string GetValue(string key, string section, string @default)
{
if (!ini.ContainsKey(section))
return @default;
if (!ini[section].ContainsKey(key))
return @default;
return ini[section][key];
}
public string[] GetKeys(string section)
{
if (!ini.ContainsKey(section))
return new string[0];
return ini[section].Keys.ToArray();
}
public string[] GetSections()
{
return ini.Keys.Where(t => t != "").ToArray();
}
}
如果你不需要铃铛和口哨(即部分),这里有一个班轮:
List<(string, string)> ini = File.ReadLines(filename)
.Select(s => {
var spl = s.Split('=', 2);
return spl.Length == 2 ? (spl[0], spl[1]) : (s, "");
})
.Select(vt => (vt.Item1.Trim(), vt.Item2.Trim()))
.Where(vt => vt.Item1 != "")
.ToList();
写:
File.WriteAllLines(filename, ini.Select(vt => $"{vt.Item1}={vt.Item2}"));
(如果你不关心重复,使用.ToDictionary()而不是.ToList()更容易访问)
试试这个方法:
public static Dictionary<string, string> ParseIniDataWithSections(string[] iniData)
{
var dict = new Dictionary<string, string>();
var rows = iniData.Where(t =>
!String.IsNullOrEmpty(t.Trim()) && !t.StartsWith(";") && (t.Contains('[') || t.Contains('=')));
if (rows == null || rows.Count() == 0) return dict;
string section = "";
foreach (string row in rows)
{
string rw = row.TrimStart();
if (rw.StartsWith("["))
section = rw.TrimStart('[').TrimEnd(']');
else
{
int index = rw.IndexOf('=');
dict[section + "-" + rw.Substring(0, index).Trim()] = rw.Substring(index+1).Trim().Trim('"');
}
}
return dict;
}
它创建键为“-”的字典。你可以这样加载它:
var dict = ParseIniDataWithSections(File.ReadAllLines(fileName));
如果你只是想要一个简单的阅读器没有部分和任何其他dll这里是一个简单的解决方案:
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tool
{
public class Config
{
Dictionary <string, string> values;
public Config (string path)
{
values = File.ReadLines(path)
.Where(line => (!String.IsNullOrWhiteSpace(line) && !line.StartsWith("#")))
.Select(line => line.Split(new char[] { '=' }, 2, 0))
.ToDictionary(parts => parts[0].Trim(), parts => parts.Length>1?parts[1].Trim():null);
}
public string Value (string name, string value=null)
{
if (values!=null && values.ContainsKey(name))
{
return values[name];
}
return value;
}
}
}
使用示例:
file = new Tool.Config (Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) + "\\config.ini");
command = file.Value ("command");
action = file.Value ("action");
string value;
//second parameter is default value if no key found with this name
value = file.Value("debug","true");
this.debug = (value.ToLower()=="true" || value== "1");
value = file.Value("plain", "false");
this.plain = (value.ToLower() == "true" || value == "1");
配置文件内容同时(如你所见,支持#符号的行注释):
#command to run
command = php
#default script
action = index.php
#debug mode
#debug = true
#plain text mode
#plain = false
#icon = favico.ico