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如何将数据从数据库显示到JTable中? 我设法显示在控制台中的数据,但IN JTABLE它不显示即使Jtable没有出现在Jframe上,但我没有错误。请任何帮助,将不胜感激。Eclipse平台java如何将数据从db显示到jtable中
import java.awt.Dimension;
import java.io.PrintWriter;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.*;
import com.mysql.jdbc.Connection;
import com.mysql.jdbc.Statement;
public class ju {
private static Object request;
static JTable mysTable;
//constructor method
public static void main (String args []){
mysTable = new JTable(3,2);
JScrollPane myPanel = new JScrollPane(mysTable,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
mysTable.setPreferredScrollableViewportSize(new Dimension(500,70));
JFrame frame = new JFrame("King Musa Saloon Software");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(null);
frame.setSize(500,500);
frame.setVisible(true);
frame.add(mysTable);
//frame.add(mysTable);
try {
Class.forName("com.mysql.jdbc.Driver");
System.out.println("Driver loading success!");
String url = "jdbc:mysql://localhost:3306/saloon";
String name = "root";
String password = "";
try {
java.sql.Connection con = DriverManager.getConnection(url, name, password);
System.out.println("Connected.");
// pull data from the database
java.sql.Statement stmts = null;
String query = "select userid, username, name from saloonuser ";
stmts = con.createStatement();
ResultSet rs = stmts.executeQuery(query);
int li_row = 0;
while(rs.next()){
mysTable.setValueAt(rs.getString("username"),li_row,0);
mysTable.setValueAt(rs.getString("name"),li_row,0);
int userid = rs.getInt("userid");
String username = rs.getString("username");
String name1 = rs.getString("name");
System.out.println(name1);
li_row++;
}
} catch (SQLException e) {
e.printStackTrace();
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
我试过了,但没有成功 –
你试过了什么?你从该链接剪切和粘贴代码?如果是,发生了什么? – duffymo
我设法解决了这个问题,但现在Jscroll是probklem –