Java connection database does not need to set data source problems

Connection Database | Data Source | Problem I see a code like this on the Internet:

<% class.forname ("Com.microsoft.jdbc.sqlserver.SQLServerDriver"). newinstance ();

String url= "Jdbc:microsoft:sqlserver://localhost:1433;databasename=shop"; Database name

String user= "SA";

String password= "SA";

Connection conn= drivermanager.getconnection (Url,user,password);

Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);

String sql= "SELECT * from UserInfo";

ResultSet rs=stmt.executequery (SQL);

while (Rs.next ())

{%> Your first field content is: <%=rs.getstring (2)%>

The contents of your second field are: <%=rs.getstring (3)%>

<%}%>

<%out.print ("Successful database operation, congratulations");%>

<%rs.close ();

Stmt.close ();

Conn.close (); %> I copied down the database name, and then modified the table name, but under Tomcat browsing times wrong; I am a beginner jsp, please enlighten you!! I wonder if there is no com.microsoft.jdbc.sqlserver.SQLServerDriver drive??