C#读取配置文件源代码

example1:mysql.ini

[mysql]
username=root;

//注释
password=123456

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/mysql

///////////////////////////////////////////////////////////////////////////////////////////////////////////

FileAssistant.cs

//////////////////////////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace FileAssistant
{
public class Assistant
{
private String path,section="section1";
private StreamWriter writer=null;
private StreamReader reader=null;
private bool isSection = false,isReader=false,isAppend;
public String Path
{
set
{
path = value;
}
get
{
return path;
}
}
public String Section
{
set
{
section = value;
}
get
{
return section;
}
}
public Assistant()
{
}
public void parse(String path, bool isAppend)
{
this.path = path;
this.isAppend = isAppend;
}
public void put(String Key, String Value)
{
if (isAppend)
{
writer = File.AppendText(path);
}
else
{
writer = File.CreateText(path);
}
if (!isSection)
{
writer.WriteLine("["+section+"]");
}
writer.WriteLine(Key+"="+Value);
writer.Flush();
writer.Close();
isSection = true;
}
public String get(String Key)
{
if (File.Exists(path))
{
try
{
String line = "";
String Value = "";
reader = File.OpenText(path);
line = reader.ReadLine();
while (line != null)
{
if (line.IndexOf("[" + section + "]") >= 0)
{
continue;
}
else
if (line.IndexOf(";") >= 0 || line.IndexOf("#") >= 0)
{
continue;
}
else
if (line.IndexOf(Key) >= 0 && line.IndexOf(";") < 0 && line.IndexOf("#") < 0)
{
Value = line.Substring(Key.Length + "=".Length);
}
line = reader.ReadLine();
}

}
catch (Exception e)
{
reader.Close();
throw new Exception(e.Message);
}
}
else
{
throw new FileNotFoundException(path+"未找到,请确认文件是否存在!");
}
reader.Close();
return Value;

}
public void release()
{
if (isSection)
{
writer.Close();
}
else if(isReader)
{
reader.Close();
}
reader = null;
writer = null;
}
~Assistant()
{
if (isSection)
{
writer.Close();
}
else if (isReader)
{
reader.Close();
}
reader = null;
writer = null;
}

}
}

///////////////////////////////////////////////////////////////////

Test.cs

///////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using FileAssistant;
namespace AssistantTest
{
class Program
{
static void Main(string[] args)
{
Assistant file = new Assistant();
file.parse("c://mysql.ini",true);
/**file.Section = "mysql";
file.put("username","root");
file.put("password", "123456");
file.put("driver", "com.mysql.jdbc.Driver");
file.put("url", "jdbc:mysql://localhost:3306/mysql");*/
Console.WriteLine(file.get("username"));
Console.WriteLine(file.get("password"));
Console.WriteLine(file.get("driver"));
Console.WriteLine(file.get("url"));
file.release();
Console.ReadLine();
}
}
}

result:

root
123456

com.mysql.jdbc.Driver
jdbc:mysql://localhost:3306/mysql