C# 读取 appconfig文件配置数据库连接的方法

APP。config配置如下：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <connectionStrings >
    <add name="strCon" connectionString="server=127.0.0.1;user id=root; password=cms1005; database=uestc_infosoft; pooling=false;port=8500"/>
  </connectionStrings>
  <appSettings>
    <add key="ConnectionString" value="server=127.0.0.1;user id=root; password=cms1005; database=uestc_infosoft; pooling=false;port=8500"/>
    <add key="ConStringEncrypt" value="true"/>
  </appSettings>
</configuration>

主要是数据库操作：

方法一：         string _connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["strCon"].ToString();

方法二：                string _connectionString = ConfigurationManager.AppSettings["ConnectionString"];