如何使用模型视图控制器（mvc）模型在数据库中从数据库检索数据

Question

我已经为表的视图部分编写了代码

private JTable table; 
     public String setTableData(Vector data){
        Vector<String> column = new Vector<String>();
        column.addElement("SN");
        column.addElement("Name");
        column.addElement("Last Name");
        column.addElement("Mobile No");
        column.addElement("Email");
        DefaultTableModel model = new DefaultTableModel(data,column);
        table.setModel(model);
        return null;
    }

然后我写了如下模型部分：

   public Vector retriveUser() {
    Connection connection;
    ResultSet resultSet;
    Statement statement = null;
    Vector data = new Vector();
    try {
        connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/contact_info", "root", "");
        System.out.println("Connection established");
        statement = connection.createStatement();
        resultSet = statement.executeQuery(retriveUser);
        ResultSetMetaData metaData = resultSet.getMetaData();
        int columns = metaData.getColumnCount();

        while (resultSet.next()) {
            Vector row = new Vector(columns);
            for (int i = 1; i <= columns; i++) {
                row.addElement(resultSet.getObject(i));
            }
            data.addElement(row);
        }
 } catch (SQLException e) {
        System.out.println("Exception occur");
        e.printStackTrace();
    }
    }

然后我写了控制器

 public class ActionBtnListener implements ActionListener{
    @Override
    public void actionPerformed(ActionEvent e) {

        String firstName =userView.getfirstName();
        String lastName = userView.getlastName();
        String mobNo = userView.getmobNo();
        String emailAdd = userView.getemailAdd();


        userModel.insertUser(firstName,lastName,mobNo,emailAdd);
        userModel.retriveUser();
        userView.setTableData(null);

    }

 }

因此，在运行时我没有在表单中看到任何表格。只显示框架。我想将数据库数据显示到视图表中。并且在单击提交按钮时刷新表数据。请解决我的问题。