import java.awt.*;
import javax.swing.*;

class Test extends JFrame {
JTextField txtName = new JTextField(20);
JLabel lblName = new JLabel("名称：");
txtName.setEditable(false);//放这里没反应

public Test(String title)
{
super(title);
getContentPane().setLayout(new FlowLayout());
getContentPane().add(lblName);
getContentPane().add(txtName);
}


public static void main(String[] args)
{
Test x = new Test("TEST");
x.setSize(300,100);
x.setVisible(true);
x.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
就可以了