我无法使用 Java Eclipse 连接到 MS Access

Question

我正在尝试连接到我的 MS Access 数据库，但由于某种原因无法连接。它给我一个错误，"data source name not found and no default driver specified"。我已经毫无问题地连接到 mysql。这是我第一次尝试连接到 MSAccess。

这是我的代码：`

import java.sql.*;

import javax.swing.JOptionPane;


public class Database2 {

    public String DBname = "comlab";
    public static String host = "localhost";
    public String Username = "";
    public String Password = "";
    String driver = "sun.jdbc.odbc.JdbcOdbcDriver";

    public Database2() {
    }
    public Connection conn;
    public ResultSet rs = null;
    public Statement st = null;
    String dbconnect = "jdbc:";

    public void connect() throws SQLException {
        try {
            if(conn==null){
            this.conn = DriverManager.getConnection("jdbc:odbc:Database11");
            this.st = this.conn.createStatement();}
            else
                this.st = this.conn.createStatement();
        } catch (SQLException e) {
            JOptionPane.showMessageDialog(null, "The system could not connect to the database." + e, "Connection Error",
                    JOptionPane.ERROR_MESSAGE);
            System.exit(0);
        }
    }

    public void connect1() throws SQLException {
        try {
            this.conn = DriverManager.getConnection("jdbc:odbc:Database11");

        } catch (SQLException e) {
            JOptionPane.showMessageDialog(null, "The system could not connect to the database." + e, "Connection Error",
                    JOptionPane.ERROR_MESSAGE);
            System.exit(0);
        }
    }

    public void close(Connection conn, Statement st, ResultSet rs) {
        try {
            if (rs != null)
                this.rs.close();
            if (st != null) {
            }
            if (conn != null)
                this.conn.close();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public void close(Statement st, ResultSet rs) {
        close(null, st, rs);
    }

    public void close(Statement st){
        close(null, st, null);
    }
}
`

Answer 1

import java.sql.*;

public class UserLogin {
    public static void main(String[] args) 
    {
        try {
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

            String url = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=" + "C:\bank.accdb";

            Connection conn = DriverManager.getConnection(url, "username", "password");
            System.out.println("Connection Succesfull");
        }
        catch (Exception e) 
        {
            System.err.println("Got an exception! ");
            System.err.println(e.getMessage());
        }
    }
}