JDBC连接SQLServer 2000的问题 - Java / Web 开发

HTTP Status 500 - 

--------------------------------------------------------------------------------

type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 

org.apache.jasper.JasperException: An exception occurred processing JSP page /save.jsp at line 18

15: }else
16: {
17: Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
18: Connection connection=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=web","sa","");
19: String sql="insert into guestbook(content,author,email,tel) values(?,?,?,?)";
20: PreparedStatement ps=connection.prepareStatement(sql);
21: ps.setString(1,con);


Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:401)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

javax.servlet.ServletException: java.sql.SQLException: No suitable driver found for jdbc:microsoft:sqlser