无法向MySQL数据库添加新信息，JDBC驱动程序存在

Question

找不到合适的jdbc驱动程序：mysql：//mudfoot.doc.stu.mmu.ac.uk/

这是我收到的错误。我正在尝试连接到我的数据库以添加有关课程的新信息。下面是我的CourseAdd.java的代码。它从html文件中获取参数，然后尝试添加信息。请帮忙 ！！！ 我在库中有JDBC驱动程序

**package course_14024632;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/CourseAdd")
public class CourseAdd extends HttpServlet {
    private static final long serialVersionUID = 1L;

 public CourseAdd() {
     super();

 }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        //this adds a new recording into the database
        //under the table called Music_Recordings

        response.setContentType("text/html;charset=UTF-8");
     PrintWriter out = response.getWriter();

     out.println("<header> <link rel = \"stylesheet\" href= \"style1.css\" />  </header>");
     //links to the stylesheet

        String r = request.getParameter("courseid");
        String a = request.getParameter("coursename");
        String t = request.getParameter("coursecredits");
        String c = request.getParameter("courseduration");
        String i = request.getParameter("coursetutor");

        //gets all the parameters 

        String insertSQL = "insert into Course values('+r+','+a+','"+t+"','"+c+"','+i+')";

        //creates an SQL statement


        Connection conn =null; // Create connection object so it can connect to the database
        String database = "*database name*"; // Name of the database
        String user = "*username*"; //name of the username
        String password = "*password*"; //and password
        String url = "jdbc:mysql://mudfoot.doc.stu.mmu.ac.uk/" + database;

        try{
            Class.forName("com.mysql.jdbc.Driver").newInstance();
        } catch(Exception e) { System.out.println(e); }


        // connecting to database
        try{
            conn = DriverManager.getConnection(url, user, password);

        }
        catch(SQLException se) {
            System.err.println(se);
        }
        // Create select statement and execute it

        try{

            Statement stmt = conn.createStatement();
            int success = stmt.executeUpdate(insertSQL);
            if(success<1){
                System.out.println("update failed!");
            }

            //executes the statement created earlier and closes
            //conneciton to the database

            conn.close();
        }catch(SQLException se) {
            System.err.println(se);
        }


        doGet(request, response);
    }
}**