新建ConnectionTestInfo类
using System.Data.SqlClient;
using System.Data;
public class ConnectionTestInfo
{
private static SqlConnection mySqlConnection; //mySqlConnection is a SqlConnection object
private static string ConnectionString = "";
private static bool IsCanConnectioned = false;
///
/// 测试连接数据库是否成功
///
///
public static bool ConnectionTest()
{
//获取数据库连接字符串
ConnectionString = ConnectionInfo.ConnectionString();
//创建连接对象
mySqlConnection = new SqlConnection(ConnectionString);
//ConnectionTimeout 在.net 1.x 可以设置 在.net 2.0后是只读属性，则需要在连接字符串设置
//如：server=.;uid=sa;pwd=;database=PMIS;Integrated Security=SSPI; Connection Timeout=30
//mySqlConnection.ConnectionTimeout = 1;//设置连接超时的时间
try
{
//Open DataBase
//打开数据库
mySqlConnection.Open();
IsCanConnectioned = true;
}
catch
{
//Can not Open DataBase
//打开不成功 则连接不成功
IsCanConnectioned = false;
}
finally
{
//Close DataBase
//关闭数据库连接
mySqlConnection.Close();
}
//mySqlConnection is a SqlConnection object
if (mySqlConnection.State == ConnectionState.Closed || mySqlConnection.State == ConnectionState.Broken)
{
//Connection is not available
return IsCanConnectioned;
}
else
{
//Connection is available
return IsCanConnectioned;
}
}
}
其中数据库字符串调用了类ConnectionInfo的方法ConnectionString
public class ConnectionInfo
{
public ConnectionInfo() { }
///
/// 从配置文件中读取数据库联接字符串
///
///
public static string ConnectionString()
{
return (ConfigurationSettings.AppSettings["ConnectionString"]);
}
}
转播
