.net MVC 连接数据本地数据库三种方法
<appSettings> <add key="webpages:Version" value="2.0.0.0" /> <add key="webpages:Enabled" value="false" /> <add key="PreserveLoginUrl" value="true" /> <add key="ClientValidationEnabled" value="true" /> <add key="UnobtrusiveJavaScriptEnabled" value="true" /> <add key="con" value="server=.\sqlexpress; user id = sa;password = a123456;database = xsgl1;max pool size=512;"/> </appSettings> <connectionStrings> <add name="conSql" connectionString="server=(local)\sqlexpress; User Id = sa;password = a123456;database = xsgl1;max pool size=512;"/> </connectionStrings>
Configuration
public class HomeController : Controller
{
//
// GET: /Home/
public ActionResult Index()
{
#region connect sql function one
SqlConnectionStringBuilder one = new SqlConnectionStringBuilder();
one.DataSource = "(local)\\sqlexpress";
one.InitialCatalog = "xsgl1";
one.UserID = "sa";
one.Password = "a123456";
one.MaxPoolSize = 512;
SqlConnection sct = new SqlConnection(one.ConnectionString);
#endregion
#region connect sql function two
//string conn = ConfigurationManager.AppSettings["con"].ToString();
//SqlConnection sct = new SqlConnection(conn);
#endregion
#region connect sql function three
//string conn = ConfigurationManager.ConnectionStrings["conSql"].ConnectionString;
//SqlConnection sct = new SqlConnection(conn);
#endregion
SqlCommand scm = new SqlCommand();
scm.Connection = sct;
scm.CommandType = CommandType.Text;
scm.CommandText = "select 课程名 from kc where 课程号='A001'";
sct.Open();
SqlDataReader sdr = scm.ExecuteReader();
if (sdr.Read())
{
ViewBag.hao = sdr["课程名"];
}
sdr.Close();
return View();
}
public ActionResult About()
{
return View();
}
}
Controller
@{
ViewBag.Title = "Index";
}
@ViewBag.hao
<h2>Index</h2>
