[C#] 纯文本查看 复制代码
using System.Collections.Generic;
using System.Configuration;
namespace BinGoo
{
public class ConfigHelper
{
///<summary>
///依据连接串名字connectionName返回数据连接字符串
///</summary>
///<param name="connectionName"></param>
///<returns></returns>
public static string GetConnectionStringsConfig(string connectionName)
{
string connectionString =
ConfigurationManager.ConnectionStrings[connectionName].ConnectionString.ToString();
return connectionString;
}
///<summary>
///更新连接字符串
///</summary>
///<param name="newName">连接字符串名称</param>
///<param name="newConString">连接字符串内容</param>
///<param name="newProviderName">数据提供程序名称</param>
public static void UpdateConnectionStringsConfig(string newName, string newConString, string newProviderName)
{
bool isModified = false; //记录该连接串是否已经存在
//如果要更改的连接串已经存在
if (ConfigurationManager.ConnectionStrings[newName] != null)
{
isModified = true;
}
//新建一个连接字符串实例
ConnectionStringSettings mySettings =
new ConnectionStringSettings(newName, newConString, newProviderName);
// 打开可执行的配置文件*.exe.config
Configuration config =
ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
// 如果连接串已存在，首先删除它
if (isModified)
{
config.ConnectionStrings.ConnectionStrings.Remove(newName);
}
// 将新的连接串添加到配置文件中.
config.ConnectionStrings.ConnectionStrings.Add(mySettings);
// 保存对配置文件所作的更改
config.Save(ConfigurationSaveMode.Modified);
// 强制重新载入配置文件的ConnectionStrings配置节
ConfigurationManager.RefreshSection("ConnectionStrings");
}
public static List<string> GetAppConfigList(string ch)
{
List<string> listKeyStr = new List<string>();
listKeyStr.Clear();
foreach (string key in ConfigurationManager.AppSettings)
{
if (key.Length > ch.Length)
{
if (key.Substring(0, ch.Length).Equals(ch))
listKeyStr.Add(key + "：" + ConfigurationManager.AppSettings[key]);
}
}
return listKeyStr;
}
///<summary>
///返回＊.exe.config文件中appSettings配置节的value项
///</summary>
///<param name="strKey"></param>
///<returns></returns>
public static string GetAppConfig(string strKey)
{
foreach (string key in ConfigurationManager.AppSettings)
{
if (key == strKey)
{
return ConfigurationManager.AppSettings[strKey];
}
}
return null;
}
///<summary>
///在＊.exe.config文件中appSettings配置节增加一对键、值对
///</summary>
///<param name="newKey"></param>
///<param name="newValue"></param>
public static void UpdateAppConfig(string newKey, string newValue)
{
bool isModified = false;
foreach (string key in ConfigurationManager.AppSettings)
{
if (key == newKey)
{
isModified = true;
}
}
// 打开应用程序配置文件
Configuration config =
ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
//删除对象
if (isModified)
{
config.AppSettings.Settings.Remove(newKey);
}
// 添加节点
config.AppSettings.Settings.Add(newKey, newValue);
// 保存app.config文件
config.Save(ConfigurationSaveMode.Modified);
//强制重新加载
ConfigurationManager.RefreshSection("appSettings");
}
}
}
[C#] 纯文本查看 复制代码
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
</configSections>
<connectionStrings>
<add name="ConnStr" connectionString="user id =数据库账号;password=数据库密码;initial catalog=数据库名称;Server=127.0.0.1"/>
</connectionStrings>
<!--系统参数配置-->
<appSettings>
<add key="Debug" value="true"/>
<add key="SocketIp" value="127.0.0.1"/>
<add key="ServerPort" value="5000"/>
</appSettings>
<startup>
<supportedRuntime version="v2.0.50727"/>
</startup>
</configuration>