asp .net连接打开数据库初步

1 //测试连接字符串是否成功
2  #region
3 using System;
4 using System.Collections.Generic;
5 using System.Linq;
6 using System.Web;
7 using System.Web.UI;
8 using System.Web.UI.WebControls;
9 using System.Data.SqlClient;
10 using System.Configuration;
11
12 public partial class test_Default : System.Web.UI.Page
13 {
14     protected void Page_Load(object sender, EventArgs e)
15     {
16         string str = ConfigurationManager.ConnectionStrings["haqiuConnectionString"].ConnectionString;
17         SqlConnection strConn = new SqlConnection(str);
18         if (strConn == null)
19         {
20             Response.Write("连接字符串为空！");
21         }
22         else
23         {
24             Response.Write("连接字符串不为空！");
25         }
26     }
27 }
28 #endregion
29
30 //打开数据库连接
31 #region
32 using System;
33 using System.Collections.Generic;
34 using System.Linq;
35 using System.Web;
36 using System.Web.UI;
37 using System.Web.UI.WebControls;
38 using System.Data.SqlClient;
39 using System.Configuration;
40
41 public partial class test_Default : System.Web.UI.Page
42 {
43     protected void Page_Load(object sender, EventArgs e)
44     {
45         string str = ConfigurationManager.ConnectionStrings["haqiuConnectionString"].ConnectionString;
46         SqlConnection strConn = new SqlConnection(str);
47         if (strConn.State.ToString()=="Closed")
48         {
49             strConn.Open();
50             Response.Write("数据库连接已经打开！");
51         }
52         else
53         {
54             Response.Write("数据库连接无法打开！");
55         }
56     }
57 }
58 #endregion
59

WebDriver