在附件的截图中，我有一个JLabel,JTextField和一个包装在JSchrollPane中的JTabel.首先，JLabel和JTextField在中间漂浮得太远了.上面有很大的空间.我想关闭那个空间.其次，我想让JTable/JSchrollPane填满整个宽度.它只占宽度的一半.并且它不会显示该表包含的3行.

如果我这样做，而不是panFindStudent.add(table, gbcFindStud);行显示，但它仍然看起来不漂亮.我想使用JSchrollPane，这样，如果表包含许多行/列，则可以执行Schroll

我还try 将JLabel和JTexField包装在JPanel中，并将JSchrollPane包装在另一个JPanel中，然后将这2个JPanels分别添加到JFrame中，如下所示

findStudentFrame.add(panelWithLabelAndTextField)
findStudentFrame.add(paneLWithShcrollPane)

但这样做，似乎只添加了最后一个面板，而不是第一个

我最终也认为GridBagLayout可能不是这项任务的正确 Select ，我try 了GridBagLayout和FlowLayout的混合.它给出了更好的结果，但仍然不令人满意.但我认为最好是学会用GridBagLayout来解决这个问题，这样我才能学会正确地使用它.欢迎你提出建议，让我的结果/看起来更好.我已经在底部添加了我的整个代码，所以您可以运行和更改它.谢谢

I want something similaar to this

import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Toolkit;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;

public class SwingPractice2 {
    
    private JFrame findStudentFrame;
    private JPanel panFindStudent, panTableResults;
    private JLabel labelAddStudEmail;
    private JTextField tFieldAddStudFirstName;
    
    private int textFieldWidth = 20,
            textFieldHeight = 10;
    
    private Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); 

    private int frameWidth = screenSize.width/4, 
            frameHeight = screenSize.height/3;
    
    public SwingPractice2() {
        findStudentFrame = new JFrame();
        //findStudentFrame.setLayout(new GridLayout(2, 1));
        //findStudentFrame.setSize(frameWidth, frameHeight);
        //addStudentFrame.setSize(frameWidth, frameHeight);
        panFindStudent = new JPanel(new GridBagLayout());
        panFindStudent.setPreferredSize(new Dimension(frameWidth, frameHeight));
        panFindStudent.setBorder(BorderFactory.createTitledBorder("Students"));
        
        labelAddStudEmail = new JLabel("Email");    
        tFieldAddStudFirstName = new JTextField();
        tFieldAddStudFirstName.setSize(textFieldWidth, textFieldHeight);
        
        panTableResults = new JPanel(new FlowLayout());
    }

    public void showStudentGUI() {
        GridBagConstraints gbcFindStud = new GridBagConstraints();
        gbcFindStud.anchor = GridBagConstraints.NORTHWEST;      
        gbcFindStud.gridx = 0;
        gbcFindStud.gridy = 0;
        gbcFindStud.weightx = 1.0;
        gbcFindStud.fill = GridBagConstraints.HORIZONTAL;
        gbcFindStud.insets = new Insets(5, 5, 5, 5);
        
        panFindStudent.add(labelAddStudEmail, gbcFindStud);
                
        gbcFindStud.gridx++;
        gbcFindStud.anchor = GridBagConstraints.NORTHEAST;
        panFindStudent.add(tFieldAddStudFirstName, gbcFindStud);
        
        String[] tableCols = new String[] {
            "ID", "First name", "Last name" 
        };
        
        String data[][] = {
                {"1", "Marcus", "Johnson" }, 
                {"2", "Miko", "Jameson"},
                {"2", "Kate", "Anderson"}
        };
        
        JTable table = new JTable(data, tableCols);     
        //table.setBounds(30, 40, 200, 300);
        
        JScrollPane jsp = new JScrollPane(table);   
        //jsp.setBounds(30, 40, 300, 300);
        
        gbcFindStud.gridx = 0;
        gbcFindStud.gridy = 1;
        gbcFindStud.fill = GridBagConstraints.HORIZONTAL;
        gbcFindStud.anchor = GridBagConstraints.CENTER;
                
        panFindStudent.add(jsp, gbcFindStud);
        
        findStudentFrame.add(panFindStudent);
        //findStudentFrame.add(jsp);
        findStudentFrame.pack();
        findStudentFrame.setVisible(true);
    }
    
    public static void main(String[] args) {
        new SwingPractice2().showStudentGUI();
    }

}