frame1.java

农业银行ATM对帐查询系统后台类包的源代码,实现了FTP,数据库管理等等功能

package boco.ftp.ftp2;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import javax.swing.*;
import sun.net.*;
import sun.net.ftp.*;
import com.borland.jbcl.layout.*;

public class Frame1 extends JFrame {
    //定义变量
    private JPanel contentPane;
    private XYLayout xYLayout1 = new XYLayout();
    private JLabel LblHost = new JLabel();
    private JLabel LblUser = new JLabel();
    private JTextField txtHost = new JTextField();
    private JTextField txtUser = new JTextField();
    private JLabel LblPass = new JLabel();
    private JPasswordField passPWD = new JPasswordField();
    private JButton BtnConn = new JButton();
    private JButton BtnClose = new JButton();
    private JLabel LblPath = new JLabel();
    private JTextField txtPath = new JTextField();
    private JLabel LblFile = new JLabel();
    private JTextField txtFilepath = new JTextField();
    private JButton BtnBrow1 = new JButton();
    private JButton BtnUpload = new JButton();
    private JTextArea lsArea = new JTextArea();
    FtpClient aftp;
    DataOutputStream outputs;
    TelnetInputStream tis;
    TelnetOutputStream tos;
    FileInputStream fis;
    String host  = "";
    String user  = "";
    String pass  = "";
    String path  = "";
    String file1 = "";
    String prompts = "没有连接主机!";
    String str ="";
    //private JLabel LblPrompt = new JLabel();
    final JFileChooser fc = new JFileChooser();
    private JComboBox ComboPath = new JComboBox();
    private JScrollPane jScrollPane1 = new JScrollPane();

    //Construct the frame
    public Frame1() {
        enableEvents(AWTEvent.WINDOW_EVENT_MASK);
        try {
            jbInit();
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }
    //Component initialization
    private void jbInit() throws Exception  {
        //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
        contentPane = (JPanel) this.getContentPane();
        String filename1 = "open.gif";
        String filename2 = "upload.gif";
        String path1 =  "/image/" + filename1;
        String path2 =  "/image/" + filename2;
        ImageIcon icon1 =new ImageIcon(getClass().getResource(path1));
        ImageIcon icon2 =new ImageIcon(getClass().getResource(path2));
        JButton BtnBrow2 = new JButton("浏览文件",icon1);
        LblHost.setText("远程主机");
        txtHost.setText("196.168.1.132");
        contentPane.setLayout(xYLayout1);
        this.setSize(new Dimension(561, 151));
        this.setTitle("FTP小程序");
        LblUser.setText("用户名");
        txtUser.setText("webftp");
        LblPass.setText("密码");
        passPWD.setText("webftp");
        BtnConn.setText("连接");
        BtnClose.setText("断开");
        BtnClose.setEnabled(false);
        LblPath.setText("主机路径");
        txtPath.setText("");
        txtPath.setVisible(false);
        LblFile.setText("文件路径");
        txtFilepath.setText("");
        BtnBrow1.setText("浏览主机文件");
        BtnUpload.setText("上传文件");
        BtnUpload.setIcon(icon2);
        lsArea.setText("主机文件目录");
        lsArea.setEditable(false);
        //ComboPath.setEditable(true);
        ComboPath.addItem("请选择路径");
        ComboPath.addItem("bin");
        ComboPath.addActionListener(new java.awt.event.ActionListener() {
          public void actionPerformed(ActionEvent ae){
              ComboPath_actionPerformed(ae);
          }
      });
        BtnBrow2.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                int returnVal = fc.showOpenDialog(contentPane);
                if (returnVal == JFileChooser.APPROVE_OPTION) {
                    File file = fc.getSelectedFile();
                    file1 = file.getPath();
                    txtFilepath.setText(file.getPath());
                }
            }
        });
        BtnConn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                if(BtnConn()){
                    BtnConn.setEnabled(false);
                    BtnClose.setEnabled(true);
                }
            }
        });
        BtnClose.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                BtnClose();
            }
        });
        BtnBrow1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                BtnBrow1();
            }
        });
        BtnUpload.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                BtnUpload();
            }
        });
        contentPane.add(txtHost,       new XYConstraints(63, 9, 98, 25));
        contentPane.add(LblUser,       new XYConstraints(167, 9, 47, 25));
        contentPane.add(txtUser,        new XYConstraints(218, 9, 84, 25));
        contentPane.add(passPWD,     new XYConstraints(348, 9, 62, 25));
        contentPane.add(BtnClose,   new XYConstraints(484, 9, 64, 25));
        contentPane.add(BtnConn,    new XYConstraints(414, 9, 66, 25));
        contentPane.add(LblPass,     new XYConstraints(305, 9, 39, 25));
        contentPane.add(txtPath, new XYConstraints(377, 39, 32, 25));
        contentPane.add(LblHost,   new XYConstraints(5, 9, 56, 25));
        contentPane.add(ComboPath,  new XYConstraints(64, 48, 183, 25));
        contentPane.add(LblPath, new XYConstraints(3, 48, 56, 25));
        contentPane.add(LblFile,  new XYConstraints(258, 48, 56, 25));
        contentPane.add(txtFilepath,   new XYConstraints(335, 48, 203, 25));
        contentPane.add(BtnBrow2,      new XYConstraints(308, 86, 108, 25));
        contentPane.add(BtnUpload,  new XYConstraints(430, 86, 108, 25));
        contentPane.add(BtnBrow1,   new XYConstraints(430, 118, -1, 25));
        contentPane.add(jScrollPane1,  new XYConstraints(12, 146, 525, 260));
        jScrollPane1.getViewport().add(lsArea, null);
        jScrollPane1.setVisible(false);
        BtnBrow1.setVisible(false);
    }

    //Overridden so we can exit when window is closed
    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
            System.exit(0);
        }
    }
    public void getTxt(){
        host  = txtHost.getText().toString();
        user  = txtUser.getText().toString();
        pass  = new String(passPWD.getPassword());

    }
    //建立与主机的按钮
    public boolean connect(String hostname,String uid,String pwd){
        try{
            getTxt();
            aftp = new FtpClient(hostname);
            aftp.login(uid,pwd);
            //aftp.binary();
            JOptionPane.showMessageDialog(contentPane,"连接主机"+hostname+"成功","连接FTP主机返回提示",JOptionPane.INFORMATION_MESSAGE);
            //showFileContents();
        }
        catch(FtpLoginException fle){
            JOptionPane.showMessageDialog(contentPane,"无权限与主机:"+hostname+"连接!","连接FTP主机返回提示",JOptionPane.ERROR_MESSAGE);
            return false;
        }
        catch (IOException ioe){
            JOptionPane.showMessageDialog(contentPane,"连接主机:"+hostname+"失败!","连接FTP主机返回提示",JOptionPane.ERROR_MESSAGE);
            return false;
        }
        catch(SecurityException se){
            JOptionPane.showMessageDialog(contentPane,"安全权限不允许与主机:"+hostname+"连接!","连接FTP主机返回提示",JOptionPane.ERROR_MESSAGE);
            return false;
        }
        return true;
    }
    //连接按钮:与主机建立Ftp的连接
    public boolean BtnConn(){
        getTxt();
        if(connect(host,user,pass)){
            BtnConn.setEnabled(false);
            BtnClose.setEnabled(true);
        }
        return true;
    }
    public void stop(){
        try{
            aftp.closeServer();
            aftp = null;
        }catch(IOException ioe){
            ioe.printStackTrace ();
        }
    }
    //响应下拉框的选择
    public void ComboPath_actionPerformed(ActionEvent ae) {
      JComboBox cb = (JComboBox)ae.getSource();
      Object Item  = cb.getSelectedItem();
      if(Item!=null){
          String path1 = (String)cb.getSelectedItem();
          if(!(Item.equals(cb.getItemAt(0)))){
             txtPath.setText(path1);
          }
          else
              txtPath.setText("");
      }
      System.out.println(txtPath.getText());
    }
    //断开与主机的连接按钮
    public boolean BtnClose(){
        URL img = getClass().getResource("/image/disconnect.gif");
        String imagesrc = "<img src=\"" + img + "\" width=\"15\" height=\"15\">";
        int result = JOptionPane.showConfirmDialog(contentPane,"<html><center>"+imagesrc+"<b>你确定关闭与服务器的连接?</b></center></html>","断开Ftp提示",JOptionPane.INFORMATION_MESSAGE);
        if(result == JOptionPane.YES_OPTION){
            stop();
            BtnConn.setEnabled(true);
            BtnClose.setEnabled(false);
            JOptionPane.showMessageDialog(contentPane,"与主机"+host+"连接已断开","返回提示",JOptionPane.INFORMATION_MESSAGE);
            return true;
        }else if(result == JOptionPane.NO_OPTION){
            return false;
        }
        return true;
    }
    //点击浏览主机目录文件按钮
    public void BtnBrow1(){
        try{
        if(path.length()!=0){
            aftp.cd(path);
            path = "..";
        }
        //showFileContents();
        if(path.length()!=0){
            aftp.cd(path);
            aftp.cd(path);
        }
        }catch(IOException ioe){
            ioe.printStackTrace ();
        }
    }
    //Ftp上传文件
    public void BtnUpload(){
        //file1 = txtFilepath.getText().toString();
        int lastSlash = file1.lastIndexOf('\\');
        String filename = file1.substring(lastSlash+1);
        filename = filename.toLowerCase();
        path  = txtPath.getText().toString();
        URL img = getClass().getResource("/image/upload1.gif");
        String imagesrc = "<img src=\"" + img + "\" width=\"24\" height=\"24\">";
        String message  = "你真的要上传文件";
        String str = "";
        int j = 1;
        if(aftp!=null){
            int result = JOptionPane.showConfirmDialog(contentPane,"<html><center>" + imagesrc + "</center><center><h2>" + message + filename +"?</h2></center></html>","上传文件提示",JOptionPane.INFORMATION_MESSAGE);
            if(result == JOptionPane.YES_OPTION){
                try{
                    getTxt();
                    if(path.length()!=0)
                        aftp.cd(path);
                    aftp.binary();
                    tos=aftp.put(filename);
                    File file_in=new File(file1);
                    fis=new FileInputStream(file_in);
                    //byte[] bytes=new byte[1024];
                    byte[] bytes = new byte[fis.available()];
                    //tos.write(bytes);
                    //tos.flush();
                    int c;
                    System.out.println("putting: " + filename);
                    while ((c=fis.read(bytes))!=-1){
                        tos.write(bytes,0,c);
                    }
                    fis.close();
                    tos.close();
                    int k=0;
                    if(path.length()!=0){
                        if(path.lastIndexOf("/")==path.length()-1)
                            path =path.substring(0,path.length()-1);
                        for(int i=0;i<path.length();i++){
                            str = path.substring(i,i+1);
                            if(str.equals("/")){
                                j +=1;
                            }
                        }
                        System.out.println(j);
                        for(int i=0;i<j;i++)
                            aftp.cd("..");
                    }
                    JOptionPane.showMessageDialog(contentPane,"你已经成功上传文件"+filename,"上传文件成功",JOptionPane.INFORMATION_MESSAGE);
                }
                catch (IOException ioe){
                    JOptionPane.showMessageDialog(contentPane,"上传文件"+filename+"失败咯!","上传文件失败",JOptionPane.ERROR_MESSAGE);
                    ioe.printStackTrace();
                }
            }else if(result == JOptionPane.NO_OPTION){
            }
        }
        else {
            JOptionPane.showMessageDialog(contentPane,"你还没连接Ftp服务器哪!","错误提示",JOptionPane.ERROR_MESSAGE);
        }
    }
    //显示主机目录内容
    public void showFileContents(){
        String buf = "";
        byte[] bt;
        StringBuffer sb = new StringBuffer();
        int ch;
        lsArea.setText("");
        try{
            //if(path.length()!=0)
            //    aftp.cd(path);
            //str = aftp.getResponseString ();
            //System.out.println(str);
            tis= aftp.list();
            //bt=new byte[tis.available()];
            //tis.read (bt);
            //buf = new String (bt);
            //lsArea.append(buf);
            while ((ch=tis.read())>=0){
                sb.append((char)ch);
            }
            lsArea.append(sb.toString());
            tis.close();
        }
        catch(IOException ioe){
            ioe.printStackTrace ();
        }
    }
}