一个布局怎么也调不好了，求助

Question

如下图所示：学校名校输入应用一行，说明为多行，可是现在却变了形，怎么也调不出来了，求助高手！
代码如下package com.mwq.frame.treatement;import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;public class CreateCriterionSetDialog extends JDialog { private JTextArea explainTextArea; private JTextField nameTextField; private boolean submit = true; /**
 * Launch the application
 * 
 * @param args
 */
public static void main(String args[]) {
try {
CreateCriterionSetDialog dialog = new CreateCriterionSetDialog();
dialog.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
dialog.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
} /**
 * Create the dialog
 */
public CreateCriterionSetDialog() {
super();
setModal(true);
setTitle("新建学校");
setBounds(100, 100, 350, 250); addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
submit = false;
}
}); final JPanel topPanel = new JPanel();
topPanel.setLayout(new GridBagLayout());
getContentPane().add(topPanel); final JLabel nameLabel = new JLabel();
nameLabel.setText("学校名称：");
final GridBagConstraints gridBagConstraints = new GridBagConstraints();
gridBagConstraints.gridy = 0;
gridBagConstraints.gridx = 0;
topPanel.add(nameLabel, gridBagConstraints); nameTextField = new JTextField();
nameTextField.setColumns(40);
final GridBagConstraints gridBagConstraints_1 = new GridBagConstraints();
gridBagConstraints_1.gridy = 0;
gridBagConstraints_1.gridx = 1;
topPanel.add(nameTextField, gridBagConstraints_1); final JLabel explainLabel = new JLabel();
explainLabel.setText("学校说明：");
final GridBagConstraints gridBagConstraints_2 = new GridBagConstraints();
gridBagConstraints_2.insets = new Insets(10, 0, 100, 0);
gridBagConstraints_2.gridy = 1;
gridBagConstraints_2.gridx = 0;
topPanel.add(explainLabel, gridBagConstraints_2); explainTextArea = new JTextArea();
explainTextArea.setLineWrap(true);
explainTextArea.setRows(6);
explainTextArea.setColumns(34);
final GridBagConstraints gridBagConstraints_3 = new GridBagConstraints();
gridBagConstraints_3.insets = new Insets(10, 0, 0, 0);
gridBagConstraints_3.gridy = 1;
gridBagConstraints_3.gridx = 1;
topPanel.add(explainTextArea, gridBagConstraints_3); final JPanel bottomPanel = new JPanel();
final FlowLayout flowLayout = new FlowLayout();
flowLayout.setAlignment(FlowLayout.RIGHT);
bottomPanel.setLayout(flowLayout);
getContentPane().add(bottomPanel, BorderLayout.SOUTH); final JButton exitButton = new JButton();
exitButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
submit = false;
dispose();
}
});
exitButton.setText("退出");
bottomPanel.add(exitButton); final JButton submitButton = new JButton();
submitButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
if (nameTextField.getText().equals("")) {
JOptionPane.showMessageDialog(null, "请填写学校名称！", "友情提示",
JOptionPane.INFORMATION_MESSAGE);
return;
}
if (explainTextArea.getText().equals("")) {
JOptionPane.showMessageDialog(null, "请填写学校说明！", "友情提示",
JOptionPane.INFORMATION_MESSAGE);
return;
}
dispose();
}
});
submitButton.setText("确定");
bottomPanel.add(submitButton); final JLabel label = new JLabel();
bottomPanel.add(label);
//
} public JTextArea getExplainTextArea() {
return explainTextArea;
} public JTextField getNameTextField() {
return nameTextField;
} public boolean isSubmit() {
return submit;
}}

Answer 1

public class CreateCriterionSetDialog extends JDialog
{
private JTextArea explainTextArea; private JTextField nameTextField; private boolean submit = true; /**
 * Launch the application
 * 
 * @param args
 */
public static void main(String args[])
{
try
{
CreateCriterionSetDialog dialog = new CreateCriterionSetDialog();
dialog.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
dialog.setVisible(true);
}
catch (Exception e)
{
e.printStackTrace();
}
} /**
 * Create the dialog
 */
public CreateCriterionSetDialog()
{
super();
setModal(true);
setTitle("新建学校");
setBounds(100, 100, 350, 250); addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
submit = false;
}
}); final JPanel topPanel = new JPanel();
topPanel.setLayout(new GridBagLayout());
getContentPane().add(topPanel); final JLabel nameLabel = new JLabel();
nameLabel.setText("学校名称：");
final GridBagConstraints gridBagConstraints = new GridBagConstraints();
gridBagConstraints.gridy = 0;
gridBagConstraints.gridx = 0;
topPanel.add(nameLabel, gridBagConstraints); nameTextField = new JTextField();
nameTextField.setColumns(40);
final GridBagConstraints gridBagConstraints_1 = new GridBagConstraints();
gridBagConstraints_1.gridy = 0;
gridBagConstraints_1.gridx = 1;
gridBagConstraints_1.fill = GridBagConstraints.HORIZONTAL;
topPanel.add(nameTextField, gridBagConstraints_1); final JLabel explainLabel = new JLabel();
explainLabel.setText("学校说明：");
final GridBagConstraints gridBagConstraints_2 = new GridBagConstraints();
gridBagConstraints_2.insets = new Insets(10, 0, 100, 0);
gridBagConstraints_2.gridy = 1;
gridBagConstraints_2.gridx = 0;
topPanel.add(explainLabel, gridBagConstraints_2); explainTextArea = new JTextArea();
explainTextArea.setLineWrap(true);
explainTextArea.setRows(6);
explainTextArea.setColumns(34);
final GridBagConstraints gridBagConstraints_3 = new GridBagConstraints();
gridBagConstraints_3.insets = new Insets(10, 0, 0, 0);
gridBagConstraints_3.gridy = 1;
gridBagConstraints_3.gridx = 1;
gridBagConstraints_3.fill = GridBagConstraints.BOTH;
topPanel.add(explainTextArea, gridBagConstraints_3); final JPanel bottomPanel = new JPanel();
final FlowLayout flowLayout = new FlowLayout();
flowLayout.setAlignment(FlowLayout.RIGHT);
bottomPanel.setLayout(flowLayout);
getContentPane().add(bottomPanel, BorderLayout.SOUTH); final JButton exitButton = new JButton();
exitButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent arg0)
{
submit = false;
dispose();
}
});
exitButton.setText("退出");
bottomPanel.add(exitButton); final JButton submitButton = new JButton();
submitButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent arg0)
{
if (nameTextField.getText().equals(""))
{
JOptionPane.showMessageDialog(null, "请填写学校名称！", "友情提示",
JOptionPane.INFORMATION_MESSAGE);
return;
}
if (explainTextArea.getText().equals(""))
{
JOptionPane.showMessageDialog(null, "请填写学校说明！", "友情提示",
JOptionPane.INFORMATION_MESSAGE);
return;
}
dispose();
}
});
submitButton.setText("确定");
bottomPanel.add(submitButton); final JLabel label = new JLabel();
bottomPanel.add(label);
//
} public JTextArea getExplainTextArea()
{
return explainTextArea;
} public JTextField getNameTextField()
{
return nameTextField;
} public boolean isSubmit()
{
return submit;
}}

Answer 2

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;public class CreateCriterionSetDialog extends JDialog
{
private JTextArea explainTextArea; private JTextField nameTextField; private boolean submit = true; /**
 * Launch the application
 * 
 * @param args
 */
public static void main(String args[])
{
try
{
CreateCriterionSetDialog dialog = new CreateCriterionSetDialog();
dialog.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
dialog.setVisible(true);
}
catch (Exception e)
{
e.printStackTrace();
}
} /**
 * Create the dialog
 */
public CreateCriterionSetDialog()
{
super();
setModal(true);
setTitle("新建学校");
setSize(300, 200);
setLocationRelativeTo(getParent()); addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
submit = false;
}
}); final JPanel topPanel = new JPanel();
topPanel.setBorder(new EmptyBorder(8, 8, 0, 8));
topPanel.setLayout(new GridBagLayout());
getContentPane().add(topPanel); final JLabel nameLabel = new JLabel();
nameLabel.setText("学校名称：");
final GridBagConstraints gridBagConstraints = new GridBagConstraints();
gridBagConstraints.gridy = 0;
gridBagConstraints.gridx = 0;
topPanel.add(nameLabel, gridBagConstraints); nameTextField = new JTextField();
// nameTextField.setColumns(60);
final GridBagConstraints gridBagConstraints_1 = new GridBagConstraints();
gridBagConstraints_1.gridy = 0;
gridBagConstraints_1.gridx = 1;
gridBagConstraints_1.weightx = 1;
gridBagConstraints_1.fill = GridBagConstraints.HORIZONTAL;
topPanel.add(nameTextField, gridBagConstraints_1); final JLabel explainLabel = new JLabel();
explainLabel.setText("学校说明：");
final GridBagConstraints gridBagConstraints_2 = new GridBagConstraints();
gridBagConstraints_2.insets = new Insets(8, 0, 0, 0);
gridBagConstraints_2.gridy = 1;
gridBagConstraints_2.gridx = 0;
topPanel.add(explainLabel, gridBagConstraints_2); explainTextArea = new JTextArea();
explainTextArea.setLineWrap(true);
final JScrollPane scrlpn = new JScrollPane();
scrlpn
.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
scrlpn.setViewportView(explainTextArea);
// explainTextArea.setRows(6);
// explainTextArea.setColumns(40);
final GridBagConstraints gridBagConstraints_3 = new GridBagConstraints();
gridBagConstraints_3.insets = new Insets(10, 0, 0, 0);
gridBagConstraints_3.gridy = 1;
gridBagConstraints_3.gridx = 1;
gridBagConstraints_3.weighty = 1;
gridBagConstraints_3.fill = GridBagConstraints.BOTH;
topPanel.add(scrlpn, gridBagConstraints_3); final JPanel bottomPanel = new JPanel();
final FlowLayout flowLayout = new FlowLayout();
flowLayout.setAlignment(FlowLayout.CENTER);
bottomPanel.setLayout(flowLayout);
getContentPane().add(bottomPanel, BorderLayout.SOUTH); final JButton submitButton = new JButton();
submitButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent arg0)
{
if (nameTextField.getText().equals(""))
{
JOptionPane.showMessageDialog(null, "请填写学校名称！", "友情提示",
JOptionPane.INFORMATION_MESSAGE);
return;
}
if (explainTextArea.getText().equals(""))
{
JOptionPane.showMessageDialog(null, "请填写学校说明！", "友情提示",
JOptionPane.INFORMATION_MESSAGE);
return;
}
dispose();
}
});
submitButton.setText("确定");
bottomPanel.add(submitButton); final JButton exitButton = new JButton();
exitButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent arg0)
{
submit = false;
dispose();
}
});
exitButton.setText("退出");
bottomPanel.add(exitButton); final JLabel label = new JLabel();
bottomPanel.add(label);
//
} public JTextArea getExplainTextArea()
{
return explainTextArea;
} public JTextField getNameTextField()
{
return nameTextField;
} public boolean isSubmit()
{
return submit;
}}