Creating JTable from database

问题

I am trying to generate a JTable in my Inventory system and I wanna display records from my database table to the JTable when user click the view bill button,Image of my Billing Form.

Database structure

Bill_Master

1. Bill_Id (Primary Key INT ):-Stores Bill Number
2. Bill_Date (Date): Stores Date Of Bill
3. Customer_Name ( VARCHAR(50)): Customer Name
4. Total_amt (NUMBER(6)) :Total Bill Amount
5. Cash_Disc (Number(2)):Discount
6. Grand_Total(Number(6)):Grand Total (Total-Discnt)

7. UID(VARCHAR(10)) Stores Who Generated the bill.(EMPLOYEE ID)

   Bill_Details

8. Bill_Detailid(INT PRIMARY KEY) Detailed Bill No.1
9. Bill_Id(Foreign Key To Bill_Master)
10. Item_Id(Foreign Key To Stock)
11. Qty (INT)
12. Rate(number(5))
13. Total(Number(5))

I want to display the detailed bill when user clicks on View Bill Button by using the query

Select * from Bill_Master Inner join Bill_Details on Bill_Master.Bill_Id=Bill_Details.Bill_Id.

Database Connection Type:ODBC Please help to generate the table.

回答1:

You can get data from ResultSet and Add Each row of table to the DefaultTableModel using vector.

Like following Example:

try {
        ResultSetMetaData rm = rs.getMetaData();
        int j = rm.getColumnCount();
        JTable table=new JTable();
        int rowCount = table.getRowCount();
        DefaultTableModel model = (DefaultTableModel) table.getModel();
        Vector v = null;
        if (rowCount == 0) {
            while (rs.next()) {
                v = new Vector();

                for (int i = 1; i <= j; i++) {
                    String type = rm.getColumnTypeName(i);
                    // System.out.println(type);
                    switch (type) {
                        case "FLOAT":
                            v.add(rs.getFloat(i));
                            break;
                        case "COUNTER":
                            v.add(rs.getInt(i));
                            break;
                        case "VARCHAR":
                            v.add(rs.getString(i));
                            break;
                        case "INTEGER":
                            v.add(rs.getInt(i));
                            break;
                        case "DATETIME":
                            v.add(rs.getString(i));
                            break;
                        case "MEDIUMINT":
                            v.add(rs.getInt(i));
                            break;
                        case "LONGBLOB":
                            v.add(rs.getTime(i));
                            break;
                        default:
                            v.add(rs.getString(i));
                    }
                }
                model.addRow(v);
            }

Here model is the DefaultTableModel of the Your table on which you have to add the row. do you get my point? Or any doubt.?

回答2:

while(resultset.next()){
    // iterate through the results, get necessary column values add them into table model
    Vector v = new Vector();
    v.add(resultset.getString(0));
     .
     .
    model.addRow(v)

}

table.setModel(model)

follow some tutorials on how to use jTable

来源：https://stackoverflow.com/questions/19629198/creating-jtable-from-database