web.config中自定义配置项读取

（一）配置

1.配置示例代码.

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

<appSettings>

<!--数据库配置-->

<add key="DBHost" value ="192.168.0.2" />

<add key="DBName" value="NorthWind" />

<add key="DBUser" value="sa" />

<add key="DBPass" value="" />

<add key="DBMaxConn" value="50" />

<add key="DBMinConn" value="3" />

<add key="DBConnTimeOut" value="3" />

</appSettings>

</configuration>

(二).用法

2.打开命名空间

using System.Configuration;

3.读取示例

string dbhost=ConfigurationSettings.AppSettings["DBHost"].Trim();

string dbname=ConfigurationSettings.AppSettings["DBName"].Trim();

string dbuser=ConfigurationSettings.AppSettings["DBUser"].Trim();

string dbpass=ConfigurationSettings.AppSettings["DBPass"].Trim();