INSERT from servlet throws java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver - sql-server-2005

Question

I am using the code below to connect to a SQL Server 2005 database from a servlet. But it is throwing the following exception:
java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver
Code Snippet:
import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class InsertServlet extends HttpServlet
{
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
doGet(request,response);
}
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
response.setContentType("text/html");
PrintWriter pw=response.getWriter();
EmpDetailBean empdetailbean=new EmpDetailBean();
Connection con=null;
PreparedStatement pstmt2=null;
//ResultSet rs=null;
String employeecode=request.getParameter("employeecode");
pw.println(employeecode);
empdetailbean.setEmployeecode(employeecode);
try
{ //String emp_code=(String)session.getAttribute("empcode");
//Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
//String url = "jdbc:sqlserver://localhost;" +
// "databaseName=test;user=sa;password= ;";
//con=DriverManager.getConnection("Jdbc:Odbc:leave1");
con=DriverManager.getConnection("jdbc:sqlserver://10.217.7.3;databaseName=test;user=sa;password=123;");
String query1="insert into leavetype(dbo.empcode) values(?)";
pstmt2=con.prepareStatement(query1);
pstmt2.setString(1,empdetailbean.getEmployeecode());
int k=pstmt2.executeUpdate();
System.out.println(k);
pstmt2.close();
}
catch(Exception e)
{ pw.println("exception"+ e);
}
}
}
the log file shows
May 2, 2012 11:34:19 AM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
May 2, 2012 11:34:19 AM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()

Answer 1

If you want to use com.microsoft.sqlserver.jdbc.SQLServerDriver as Driver then sqljdbc.jar is required to be
present in your classpath which is WEB-INF\lib.
If you want to user Jtds Driver Check this link for Driver and databse URL

Answer 2

Seems that the Jar file for the JDBC Connectivity is missing from the war file that you have deployed. could you please ensure that the lib files are getting packaged with war file properly