C#读取Web.config文件里面的值

Web.config配置文件

<configuration>
  <appSettings>
      <add key="CS1" value="UTF-8" />
  </appSettings>
  
  <connectionStrings>
    <add name="connOracle" connectionString="Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=IP)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL)));Persist Security Info=True;User ID=user;Password=pass; Max Pool Size = 512;" providerName="Oracle.ManagedDataAccess.Client"/>
    <add name="connMysql" connectionString="server=IP;user id=root;password=pass;database=db"/>
  </connectionStrings>
</configuration>

后台读取配置

//根据key 读取value
public static string AppSetting(string key)
{
    return ConfigurationManager.AppSettings[key];
}
//根据connectionStrings的name读取内容
ConfigurationManager.ConnectionStrings["connMysql"].ConnectionString;