100 lines
2.7 KiB
Java
100 lines
2.7 KiB
Java
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Socket Applet
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import java.applet.*;
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import java.awt.*;
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import java.awt.event.*;
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import java.io.*;
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import java.net.*;
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public class SocketApplet extends Applet {
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TextField nameTF, passTF, domainTF;
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Image im;
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Button sendButton;
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/** Where the Applet came from */
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URL whence;
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//+
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/** Initialize the GUI nicely. */
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public void init() {
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Label aLabel;
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setLayout(new GridBagLayout());
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int LOGO_COL = 1;
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int LABEL_COL = 2;
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int TEXT_COL = 3;
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int BUTTON_COL = 1;
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GridBagConstraints gbc = new GridBagConstraints();
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gbc.weightx = 100.0; gbc.weighty = 100.0;
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gbc.gridx = LABEL_COL; gbc.gridy = 0;
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gbc.anchor = GridBagConstraints.EAST;
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add(aLabel = new Label("Name:", Label.CENTER), gbc);
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gbc.anchor = GridBagConstraints.CENTER;
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gbc.gridx = TEXT_COL; gbc.gridy = 0;
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add(nameTF=new TextField(10), gbc);
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gbc.gridx = LABEL_COL; gbc.gridy = 1;
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gbc.anchor = GridBagConstraints.EAST;
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add(aLabel = new Label("Password:", Label.CENTER), gbc);
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gbc.anchor = GridBagConstraints.CENTER;
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gbc.gridx = TEXT_COL; gbc.gridy = 1;
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add(passTF=new TextField(10), gbc);
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passTF.setEchoChar('*');
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gbc.gridx = LABEL_COL; gbc.gridy = 2;
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gbc.anchor = GridBagConstraints.EAST;
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add(aLabel = new Label("Domain:", Label.CENTER), gbc);
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gbc.anchor = GridBagConstraints.CENTER;
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gbc.gridx = TEXT_COL; gbc.gridy = 2;
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add(domainTF=new TextField(10), gbc);
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sendButton = new Button("Send data");
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gbc.gridx = BUTTON_COL; gbc.gridy = 3;
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gbc.gridwidth = 3;
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add(sendButton, gbc);
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whence = getCodeBase();
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// Now the action begins...
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sendButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent evt) {
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String name = nameTF.getText();
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if (name.length() == 0) {
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showStatus("Name required");
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return;
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}
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String domain = domainTF.getText();
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if (domain.length() == 0) {
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showStatus("Domain required");
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return;
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}
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showStatus("Connecting to host " + whence.getHost() +
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" as " + nameTF.getText());
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try {
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Socket s = new Socket(getCodeBase().getHost(),
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SocketServer.PORT);
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PrintWriter pf = new PrintWriter(s.getOutputStream(), true);
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// send login name
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pf.println(nameTF.getText());
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// passwd
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pf.println(passTF.getText());
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// and domain
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pf.println(domainTF.getText());
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BufferedReader is = new BufferedReader(
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new InputStreamReader(s.getInputStream()));
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String response = is.readLine();
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showStatus(response);
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} catch (IOException e) {
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showStatus("ERROR: " + e.getMessage());
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}
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}
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});
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}
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//-
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}
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/*
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<APPLET CODE="SocketApplet" width=300 height=120>
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</APPLET>
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*/
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