日期:2014-05-20  浏览次数:20754 次

[新人求解]用GridBagLayout设计图形界面
现在尝试用GridBagLayout设计图形界面,可是总打不到预期效果。
预期效果:
//姓名:(JTextField)
//性别:(JRadioButton)(JRadioButton)
//QQ:(JTextField)
(括号中是对应的组件。)

代码如下:
import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
public class AddContact extends JFrame{
JTextField JTName=new JTextField();
JTextField JTQQ=new JTextField();
JTextField JTPhone=new JTextField();
JTextField JTEmail=new JTextField();
JTextField JTAddr=new JTextField();
JRadioButton JRBM=new JRadioButton("男");
JRadioButton JRBF=new JRadioButton("女");
JButton JBAdd=new JButton("提交");
public AddContact()
{
JPanel jp=new JPanel();
GridBagLayout gb=new GridBagLayout();
GridBagConstraints c=new GridBagConstraints();
JLabel jl=new JLabel();
jp.setLayout(gb);
c.anchor = GridBagConstraints.NORTHWEST;
c.fill = GridBagConstraints.BOTH;

//set name info.
c.gridx=0;
c.gridy=0;
c.gridwidth=1;
c.gridheight=1;
jl.setText("姓名:");
gb.setConstraints(jl, c);
jp.add(jl);

c.gridx=1;
c.gridy=0;
c.gridwidth=2;
c.gridheight=1;
gb.setConstraints(JTName, c);
jp.add(JTName);

//set sex info.
c.gridx=0;
c.gridy=1;
c.gridwidth=1;
c.gridheight=1;
jl.setText("性别:");
gb.setConstraints(jl, c);
jp.add(jl);

c.gridx=1;
c.gridy=1;
c.gridwidth=1;
c.gridheight=1;
gb.setConstraints(JRBM, c);
jp.add(JRBM);

c.gridx=2;
c.gridy=1;
c.gridwidth=1;
c.gridheight=1;
gb.setConstraints(JRBF, c);
jp.add(JRBF);

ButtonGroup bg=new ButtonGroup();
bg.add(JRBM);
bg.add(JRBF);


//set QQ info.
c.gridx=0;
c.gridy=2;
c.gridwidth=1;
c.gridheight=1;
jl.setText("QQ:");
gb.setConstraints(jl, c);
jp.add(jl);

c.gridx=1;
c.gridy=2;
c.gridwidth=2;
c.gridheight=1;
gb.setConstraints(JTQQ, c);
jp.add(JTQQ);

this.add(jp);
this.setVisible(true);
this.pack();
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


}
public static void main(String[] args)
{
javax.swing.SwingUtilities.invokeLater(new Runnable() {
  public void run() {
new AddContact();}});
}
}
就是这个我弄一晚上了,有劳各位多多纠正啊。

------解决方案--------------------
在你的基础上作出修改,代码如下:
Java code
//import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
//import java.awt.event.ActionEvent;
//import java.awt.event.ActionListener;

import javax.swing.*;
public class GBCTest extends JFrame{
    public GBCTest()
    {
        JTextField JTName=new JTextField();
        JTextField JTQQ=new JTextField();
        //JTextField JTPhone=new JTextField();
        //JTextField JTEmail=new JTextField();
        //JTextField JTAddr=new JTextField();
        JRadioButton JRBM=new JRadioButton("男");
        JRadioButton JRBF=new JRadioButton("女");
        //JButton JBAdd=new JButton("提交");

        JPanel jp=new JPanel();
        GridBagLayout gb=new GridBagLayout();
        GridBagConstraints c=new GridBagConstraints();
        JLabel jl= new JLabel();
        JLabel j2 = new JLabel();
        JLabel j3 = new JLabel();
        jp.setLayout(gb);
        c.anchor = GridBagConstraints.NORTHWEST;
        c.fill = GridBagConstraints.BOTH;

//set name info.
        c.gridx=0;
        c.gridy=0;
        c.gridwidth=1;
        c.gridheight=1;
        jl.setText("姓名:");
        gb.setConstraints(jl, c);
        jp.add(jl);

        c.gridx=1;
        c.gridy=0;
        c.gridwidth=2;
        c.gridheight=1;
        gb.setConstraints(JTName, c);
        jp.add(JTName);

//set sex info.
        c.gridx=0;
        c.gridy=1;
        c.gridwidth=1;
        c.gridheight=1;
        j2.setText("性别:");
        gb.setConstraints(j2, c);
        jp.add(j2);

        c.gridx=1;
        c.gridy=1;
        c.gridwidth=1;
        c.gridheight=1;
        gb.setConstraints(JRBM, c);
        jp.add(JRBM);

        c.gridx=2;
        c.gridy=1;
        c.gridwidth=1;
        c.gridheight=1;
        gb.setConstraints(JRBF, c);
        jp.add(JRBF);

        ButtonGroup bg=new ButtonGroup();
        bg.add(JRBM);
        bg.add(JRBF);


//set QQ info.
        c.gridx=0;
        c.gridy=2;
        c.gridwidth=1;
        c.gridheight=1;
        j3.setText("QQ:");
        gb.setConstraints(j3, c);
        jp.add(j3);

        c.gridx=1;
        c.gridy=2;
        c.gridwidth=2;
        c.gridheight=1;
        gb.setConstraints(JTQQ, c);
        jp.add(JTQQ);

        this.add(jp);
        this.setVisible(true);
        this.pack();
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


    }
    public static void main(String[] args)
    {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new GBCTest();}});
    }
}