showhtml.java

网络书店的设计与实现 网络书店的设计与实现

//: c15:ShowHTML.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// <applet code=ShowHTML width=100 height=50>
// </applet>
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import com.bruceeckel.swing.*;

public class ShowHTML extends JApplet {
  static final String CGIProgram = "MyCGIProgram";
  JButton send = new JButton("Go");
  JLabel l = new JLabel();
  public void init() {
    Container cp = getContentPane();
    cp.setLayout(new FlowLayout());
    send.addActionListener(new Al());
    cp.add(send);
    cp.add(l);
  }
  class Al implements ActionListener {
    public void actionPerformed(ActionEvent ae) {
      try {
        // This could be an HTML page instead of
        // a CGI program. Notice that this CGI 
        // program doesn't use arguments, but 
        // you can add them in the usual way.
        URL u = new URL(
          getDocumentBase(), 
          "cgi-bin/" + CGIProgram);
        // Display the output of the URL using
        // the Web browser, as an ordinary page:
        getAppletContext().showDocument(u);
      } catch(Exception e) {
        l.setText(e.toString());
      }
    }
  }
  public static void main(String[] args) {
    Console.run(new ShowHTML(), 100, 50);
  }
} ///:~