deyou
67 lines
2.0 KiB
Java
67 lines
2.0 KiB
Java
package jaas;
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import java.awt.*;
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import javax.security.auth.*;
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import javax.security.auth.login.*;
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import javax.swing.*;
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/**
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* This frame has text fields for user name and password, a field for the name of the requested
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* system property, and a field to show the property value.
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*/
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public class JAASFrame extends JFrame
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{
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private JTextField username;
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private JPasswordField password;
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private JTextField propertyName;
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private JTextField propertyValue;
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public JAASFrame()
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{
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username = new JTextField(20);
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password = new JPasswordField(20);
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propertyName = new JTextField("user.home");
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propertyValue = new JTextField(20);
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propertyValue.setEditable(false);
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JPanel panel = new JPanel();
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panel.setLayout(new GridLayout(0, 2));
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panel.add(new JLabel("username:"));
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panel.add(username);
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panel.add(new JLabel("password:"));
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panel.add(password);
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panel.add(propertyName);
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panel.add(propertyValue);
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add(panel, BorderLayout.CENTER);
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JButton getValueButton = new JButton("Get Value");
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getValueButton.addActionListener(event -> getValue());
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JPanel buttonPanel = new JPanel();
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buttonPanel.add(getValueButton);
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add(buttonPanel, BorderLayout.SOUTH);
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pack();
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}
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public void getValue()
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{
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try
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{
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LoginContext context = new LoginContext("Login1", new SimpleCallbackHandler(
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username.getText(), password.getPassword()));
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System.out.println("Trying to log in with " + username.getText()
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+ " and " + new String(password.getPassword()));
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context.login();
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Subject subject = context.getSubject();
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propertyValue.setText(""
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+ Subject.doAsPrivileged(subject, new SysPropAction(propertyName.getText()), null));
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context.logout();
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}
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catch (LoginException ex)
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{
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ex.printStackTrace();
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Throwable ex2 = ex.getCause();
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if (ex2 != null) ex2.printStackTrace();
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}
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}
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} |