import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

;

------解决方案--------------------
我测试下来也没显示

Java code
import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

public class Test {
    public static void main(String[] args) {
        JFrame jf = new JFrame();
        Object[][] playerInfo = new Object[1][5];
        String[] Names = { "ID", "地区", "学校代码", "学校名称", "详细地址" };
        playerInfo[0][0]="1";
        playerInfo[0][1]="2";
        playerInfo[0][2]="3";
        playerInfo[0][3]="4";
        playerInfo[0][4]="5";

        DefaultTableModel defaultModel = new DefaultTableModel(playerInfo,Names);
        JTable table = new JTable(defaultModel);
        TableColumnModel columnModel = table.getColumnModel();
        TableColumn column = columnModel.getColumn(0);
        jf.add(table);
        jf.setVisible(true);
        column.setMinWidth(0);
        column.setMaxWidth(0);
        column.setWidth(0);
        column.setPreferredWidth(0);
        System.out.println(table.getModel().getValueAt(0, 0));
    }
}