acount.java

JAVA 简单程序 用neetbean6.0 编的 实现HTML 下载

/*
 * NewJPanel.java
 *
 * Created on 2008年4月26日, 下午5:41
 */

package fxurl;

import java.net.InetAddress;
import java.net.UnknownHostException;
import javax.swing.JOptionPane;
import javax.swing.UIManager;

/**
 *
 * @author  ruicosta
 */
public class NewJPanel extends javax.swing.JPanel {
    
    /** Creates new form NewJPanel */
    public NewJPanel() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        jList1 = new javax.swing.JList();

        jLabel1.setFont(new java.awt.Font("宋体", 0, 24));
        jLabel1.setText("请输入：");

        jTextField1.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                jTextField1KeyPressed(evt);
            }
        });

        jButton1.setFont(new java.awt.Font("宋体", 0, 24));
        jButton1.setText("退出");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setFont(new java.awt.Font("宋体", 0, 24));
        jButton2.setText("确定");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jScrollPane1.setViewportView(jList1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jLabel1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 301, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 195, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, 200, Short.MAX_VALUE))
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 401, Short.MAX_VALUE))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jTextField1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 29, Short.MAX_VALUE)
                    .addComponent(jLabel1, javax.swing.GroupLayout.Alignment.LEADING))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 206, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 59, javax.swing.GroupLayout.PREFERRED_SIZE)))
        );
    }// </editor-fold>

    private void jTextField1KeyPressed(java.awt.event.KeyEvent evt) {
        // TODO add your handling code here: if ((evt.getKeyCode()) == (KeyEvent.VK_ENTER)) {
            parse();
    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        int returnValue = JOptionPane.showConfirmDialog(this, "是否退出程序？", "确认退出", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
        if (returnValue == JOptionPane.YES_OPTION) {
            System.exit(0);
        }
    }

        private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
            // TODO add your handling code here: 
            parse();
        }
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                    new NewJPanel().setVisible(true);
                } catch (Exception ex) {                    
                }
            }
        });
    }

    public void parse() {
        String parseString = jTextField1.getText();
        String ipOrURL = null;
        String[] result = null;
        try {
            InetAddress ia = InetAddress.getByName(parseString);
            if (Character.isDigit(parseString.charAt(parseString.length() - 1))) {
                ipOrURL = "IP地址";
            } else {
                ipOrURL = "域名";
            }
            result = new String[]{"要解析的是一个" + ipOrURL, "主机名：" + ia.getHostName(), "IP地址：" + ia.getHostAddress()};
        } catch (UnknownHostException e) {
            result = new String[]{"不能解析" + parseString};
            JOptionPane.showMessageDialog(this, result, "出错了！", JOptionPane.ERROR_MESSAGE);
        } catch (Exception e) {
            result=new String[]{"未知错误！"};
            JOptionPane.showMessageDialog(this, result, "出错了！", JOptionPane.ERROR_MESSAGE);
        } finally {
            jList1.setListData(result);
        }
    }
    
    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JList jList1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration
    
}