Question

java可不可以给窗体或者面板设置滚动条?怎么设置?请说的通俗一些，最好有代码，谢谢

Answer 1

可以的！
JTextArea jta = new JTextArea();
JScrollPane jsp = new JScrollPanel(jta);

然后把jsp添加到面板就好了

追问

那个是文本域吧？我想在窗体（JFrame）上添加滚动条，该那么办

追答

就像web浏览器的效果吗?

追问

能吗

追答

明天有空了我试试看，给你答复哈。这周很忙

Answer 2

package com.my.test;
import java.awt.EventQueue;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JTextField;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.border.EmptyBorder;

public class MainFrame extends JFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
private JPanel contentPane;
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTextField textField_4;
private JTextField textField_5;
private JTextField textField_6;

/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MainFrame frame = new MainFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the frame.
*/
public MainFrame() {
setTitle("\u6D4B\u8BD5");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 689, 437);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);

JLabel lblNewLabel = new JLabel("New label");

JScrollBar scrollBar = new JScrollBar();

textField = new JTextField();
textField.setColumns(10);

JLabel lblNewLabel_1 = new JLabel("New label");

JLabel lblNewLabel_2 = new JLabel("New label");

JLabel lblNewLabel_3 = new JLabel("New label");

textField_1 = new JTextField();
textField_1.setColumns(10);

textField_2 = new JTextField();
textField_2.setColumns(10);

textField_3 = new JTextField();
textField_3.setColumns(10);

JLabel lblNewLabel_4 = new JLabel("New label");

JLabel lblNewLabel_5 = new JLabel("New label");

textField_4 = new JTextField();
textField_4.setColumns(10);

textField_5 = new JTextField();
textField_5.setColumns(10);

JLabel lblNewLabel_6 = new JLabel("New label");

textField_6 = new JTextField();
textField_6.setColumns(10);
GroupLayout gl_contentPane = new GroupLayout(contentPane);
gl_contentPane.setHorizontalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(45)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(lblNewLabel)
.addGap(18)
.addComponent(textField, GroupLayout.PREFERRED_SIZE, 251, GroupLayout.PREFERRED_SIZE))
.addGroup(gl_contentPane.createSequentialGroup()
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(lblNewLabel_1)
.addGap(18)
.addComponent(textField_1))
.addGroup(gl_contentPane.createSequentialGroup()
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(lblNewLabel_2)
.addGap(18)
.addComponent(textField_2))
.addGroup(gl_contentPane.createSequentialGroup()
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(lblNewLabel_3)
.addGap(18)
.addComponent(textField_3))
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(lblNewLabel_4)
.addGap(18)
.addComponent(textField_4))
.addGroup(gl_contentPane.createSequentialGroup()
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(lblNewLabel_5)
.addGap(18)
.addComponent(textField_5))
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(lblNewLabel_6)
.addGap(18)
.addComponent(textField_6)))
.addGap(268)
.addComponent(scrollBar, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
gl_contentPane.setVerticalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(18)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel)
.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(32)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(lblNewLabel_1))
.addGap(38)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_2)
.addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(33)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_3)
.addComponent(textField_3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(39)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_4)
.addComponent(textField_4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addPreferredGap(ComponentPlacement.RELATED, 46, Short.MAX_VALUE)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_5)
.addComponent(textField_5, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(32)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_6)
.addComponent(textField_6, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)))
.addGroup(gl_contentPane.createSequentialGroup()
.addContainerGap()
.addComponent(scrollBar, GroupLayout.DEFAULT_SIZE, 369, Short.MAX_VALUE)))
.addContainerGap())
);
contentPane.setLayout(gl_contentPane);
}
}