在网格包布局中添加组件的垂直距离

Question

我在gridbagLayout中添加了四个组件。我想在它们之间添加垂直距离如何添加垂直距离？组件是

达特菲尔德（Jlabel）billno （JTextFEILD）日期（JTextField）搜索JBUTTOn） delete（JBUTTOn）

我尝试通过使宽度= 1.0; 但没有得到。请帮助我..谢谢。。

enter code here

     b()
{
    GridBagLayout gridBag = new GridBagLayout();
    GridBagConstraints gbc = new GridBagConstraints();
    this.setLayout(gridBag);
    panel.setLayout(gridBag);
    JButton search=new JButton();
    JButton delete=new JButton();
    JLabel dateFieldLabel = new JLabel("Date Field");
    JTextField thingNameField = new JTextField("Billno");
    JTextField thingdateField = new JTextField("Date");

gbc.gridx = 0;
gbc.gridy = 0;
this.add(new JScrollPane(table),gbc);

gbc.gridx = 0;
gbc.gridy = 1;
gbc.insets = new Insets(2,2,2,2);
gbc.fill = GridBagConstraints.BOTH; 
gbc.weightx = 1.0; 
gbc.weighty = 1.0;
panel.add(dateFieldLabel,  gbc);


gbc.gridx = 0;
gbc.gridy = 2;  
gbc.insets = new Insets(2,2,2,2);
gbc.fill = GridBagConstraints.BOTH; 
gbc.gridwidth = 2;
gbc.fill = GridBagConstraints.HORIZONTAL; 
gbc.weightx = 0.0; 
gbc.weighty = 0.0;
panel.add(thingNameField,  gbc);        


gbc.gridx = 0;
gbc.gridy = 3;
gbc.insets = new Insets(2,2,2,2);
gbc.fill = GridBagConstraints.BOTH; 
gbc.weightx = 0.0; 
gbc.weighty = 1.0;
gbc.gridwidth = 2;
gbc.fill = GridBagConstraints.HORIZONTAL; 
panel.add(thingdateField,  gbc);
gbc.gridx = 0;
gbc.gridy = 4;
gbc.gridwidth = 1;
gbc.fill = GridBagConstraints.BOTH; 
gbc.fill = GridBagConstraints.NONE; 
gbc.weightx = 1.0; 
gbc.weighty = 1.0;
gbc.insets = new Insets(2,2,2,2);
panel.add(search,  gbc);
gbc.gridx = 1;
gbc.gridy = 4;  
gbc.gridwidth = 1;
gbc.fill = GridBagConstraints.BOTH; 
gbc.fill = GridBagConstraints.NONE; 
gbc.weightx = 1.0; 
gbc.weighty = 1.0;
gbc.insets = new Insets(2,2,2,2);
panel.add(delete,  gbc);
gbc.anchor = GridBagConstraints.NORTHEAST;
this.add(panel);

     }

Answer 1

有类 GridBagConstraints 具有字段insets。这允许设置组件内陷：

Component c = ...
GridBagLayout gbl = ...
Container container = new JPanel(gbl);
GridBagConstraints gbc = gbl.getConstraints(c);
gbc.insets = new Insets(....);
container.add(c, gbc);

Answer 2

你的答案就在你眼皮底下：使用 Insets ：

gbc.insets = new Insets(2,2,2,2); 

可以成为

gbc.insets = new Insets(12,2,12,2);