简单的FTP上传下载(java实现 swing界面)

/**
*阅读前请自己在win7上建立FTP主机
*具体步骤如：http://jingyan.baidu.com/article/574c5219d466c36c8d9dc138.html
* 然后将以下FTP,username,password分别改成你的FTP ip地址用户名密码即可(红色代码部分)
* 本例子用了apche的commons-net-3.3.jar以方便FTP的访问请在网上下载然后手动buid -path添加
* 待完成版刷新按钮登录都还没有做而且上传下载完成后都需要重新运行
* 2014-05-07
* **/

一共3个类 Frame_Main为主函数图形界面 ButtonColumn是下载键的类最后一个是FTP服务类

  1 import java.awt.EventQueue;
  2 
  3 import javax.swing.JFrame;
  4 import java.awt.BorderLayout;
  5 import javax.swing.JTable;
  6 import javax.swing.border.BevelBorder;
  7 import javax.swing.JFileChooser;
  8 import javax.swing.JScrollPane;
  9 import javax.swing.JTextField;
 10 import javax.swing.JButton;
 11 import javax.swing.JRadioButton;
 12 import javax.swing.JTextArea;
 13 import javax.swing.JLabel;
 14 import java.awt.event.ActionListener;
 15 import java.awt.event.ActionEvent;
 16 import java.awt.Color;
 17 import java.awt.Font;
 18 import javax.swing.SwingConstants;
 19 import javax.swing.UIManager;
 20 import java.awt.Toolkit;
 21 import javax.swing.table.DefaultTableModel;
 22 import javax.swing.border.CompoundBorder;
 23 import javax.swing.border.LineBorder;
 24 import javax.swing.filechooser.FileSystemView;
 25 import javax.swing.JScrollBar;
 26 
 27 import org.apache.commons.net.ftp.FTPFile;
 28 
 29 import java.awt.ScrollPane;
 30 import java.awt.Label;
 31 import java.io.File;
 32 import java.io.IOException;
 33 import java.util.ArrayList;
 34 import java.util.Date;
 35 import java.util.Vector;
 36 import java.awt.Scrollbar;
 37 
 38 public class Frame_Main implements ActionListener{
 39 
 40     
 41     //初始化参数--------------------------------
 42         static FTPFile[] file;
 43         static String FTP="192.168.1.86";
 44         static String username="huanglizhe";
 45         static String password="123456";
 46     //初始化参数--------------------------------
 47     
 48     
 49     private JFrame frame;
 50     private JTable table;
 51     static Ftp_by_apache ftp;
 52     public static Ftp_by_apache getFtp() {
 53         return ftp;
 54     }
 55     
 56     /**
 57      * Launch the application.
 58      */
 59     public static void main(String[] args) {
 60         
 61          ftp=new Ftp_by_apache(FTP,username,password);
 62          file=ftp.getAllFile();
 63         
 64         
 65         
 66         EventQueue.invokeLater(new Runnable() {
 67             public void run() {
 68                 try {
 69                     Frame_Main window = new Frame_Main();
 70                     window.frame.setVisible(true);
 71                 } catch (Exception e) {
 72                     e.printStackTrace();
 73                 }
 74             }
 75         });
 76         
 77     }
 78 
 79     /**
 80      * Create the application.
 81      */
 82     public Frame_Main() {
 83         initialize();
 84     }
 85 
 86     /**
 87      * Initialize the contents of the frame.
 88      */
 89     private void initialize() {
 90         frame = new JFrame();
 91         frame.setIconImage(Toolkit.getDefaultToolkit().getImage(Frame_Main.class.getResource("/com/sun/java/swing/plaf/windows/icons/UpFolder.gif")));
 92         frame.setTitle("FTP");
 93         frame.setBounds(100, 100, 470, 534);
 94         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 95         frame.getContentPane().setLayout(null);
 96         
 97         //上传按钮--------------------------------------------------
 98         JButton upload = new JButton("\u4E0A\u4F20");
 99         upload.setFont(new Font("宋体", Font.PLAIN, 12));
100         upload.setBackground(UIManager.getColor("Button.highlight"));
101         upload.addActionListener(new ActionListener() {
102             public void actionPerformed(ActionEvent arg0) {
103                 //上传点击按钮触发------------------------------------
104                 System.out.println("上传！！！！！");
105                 int result = 0;  
106                 File file = null;  
107                 String path = null;  
108                 JFileChooser fileChooser = new JFileChooser();  
109                 FileSystemView fsv = FileSystemView.getFileSystemView(); 
110                 System.out.println(fsv.getHomeDirectory());                //得到桌面路径  
111                 fileChooser.setCurrentDirectory(fsv.getHomeDirectory());  
112                 fileChooser.setDialogTitle("请选择要上传的文件...");  
113                 fileChooser.setApproveButtonText("确定");  
114                 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);  
115                 result = fileChooser.showOpenDialog(null);  
116                 if (JFileChooser.APPROVE_OPTION == result) {  
117                     path=fileChooser.getSelectedFile().getPath();  
118                     System.out.println("path: "+path);
119                     try {
120                         //下载
121                         ftp.upload(path);
122                     } catch (IOException e1) {
123                         // TODO Auto-generated catch block
124                         e1.printStackTrace();
125                     }
126                     finally{
127                         
128                         ftp.close_connection();
129                     }
130                     } 
131                 //上传点击按钮触发------------------------------------
132             }
133         });
134         upload.setBounds(195, 15, 82, 23);
135         frame.getContentPane().add(upload);
136         //上传按钮--------------------------------------------------
137         
138         
139         
140         //刷新按钮--------------------------------------------------
141         JButton refresh = new JButton("\u5237\u65B0");
142         refresh.addActionListener(new ActionListener() {
143             public void actionPerformed(ActionEvent arg0) {
144             }
145         });
146         refresh.setFont(new Font("宋体", Font.PLAIN, 12));
147         refresh.setBackground(UIManager.getColor("Button.highlight"));
148         refresh.setBounds(312, 15, 82, 23);
149         frame.getContentPane().add(refresh);
150         //刷新按钮--------------------------------------------------
151         
152         
153         
154         //显示基本信息(FTP username)-----------------------------------------------
155         JLabel lblNewLabel = new JLabel("FTP\u5730\u5740");
156         lblNewLabel.setBounds(32, 10, 54, 15);
157         frame.getContentPane().add(lblNewLabel);
158         
159         JLabel lblNewLabel_1 = new JLabel("\u7528\u6237\u540D");
160         lblNewLabel_1.setBounds(32, 35, 54, 15);
161         frame.getContentPane().add(lblNewLabel_1);
162         
163         JLabel address = new JLabel(FTP);
164         address.setBounds(110, 10, 75, 15);
165         frame.getContentPane().add(address);
166         
167         JLabel name = new JLabel(username);
168         name.setBounds(110, 35, 82, 15);
169         frame.getContentPane().add(name);
170         //显示基本信息-----------------------------------------------
171         
172         
173         //table数据初始化  从FTP读取所有文件
174         String[][] data1=new String[file.length][4];
175          for(int row=0;row<file.length;row++)
176          {
177              
178                  data1[row][0]=file[row].getName();
179                  if(file[row].isDirectory())
180                     {
181                      data1[row][1]="文件夹";
182                     }
183                     else if(file[row].isFile()){
184                         String[] geshi=file[row].getName().split("\\.");
185                         data1[row][1]=geshi[1];    
186                     }
187                  data1[row][2]=file[row].getSize()+"";
188                  data1[row][3]="下载";
189          } 
190          
191         
192         
193         //table列名-----------------------------------------------------
194         String[] columnNames = {"文件", "文件类型", "文件大小(字节)", ""  };  
195         DefaultTableModel model = new DefaultTableModel();
196         model.setDataVector(data1, columnNames);
197         
198         //加滚动条--------------------------------------------------------
199         JScrollPane scrollPane = new JScrollPane();
200         scrollPane.setBounds(32, 73, 362, 384);
201         frame.getContentPane().add(scrollPane);
202           //加滚动条-----------------------------------------------------
203           
204         //table功能------------------------------------------------------
205         table = new JTable(model);
206         scrollPane.setViewportView(table);
207         table.setColumnSelectionAllowed(true);
208         table.setCellSelectionEnabled(true);
209         table.setFont(new Font("微软雅黑", Font.PLAIN, 12));
210         table.setBorder(new LineBorder(new Color(0, 0, 0)));
211         table.setToolTipText("\u53EF\u4EE5\u70B9\u51FB\u4E0B\u8F7D");
212         
213          //table button初始化(最后一列的按键)--------------------    
214         ButtonColumn buttonsColumn = new ButtonColumn(table, 3);
215       
216     }
217 
218     @Override
219     public void actionPerformed(ActionEvent arg0) {
220         // TODO Auto-generated method stub
221         
222     }
223 }

ButtonColumn类主要实现下载按钮

  1   
  2 import java.awt.Component;  
  3 import java.awt.event.ActionEvent;  
  4 import java.awt.event.ActionListener;  
  5 import java.io.File;
  6 import java.io.IOException;
  7   
  8 import javax.swing.AbstractCellEditor;  
  9 import javax.swing.JButton;  
 10 import javax.swing.JFileChooser;
 11 import javax.swing.JTable;  
 12 import javax.swing.UIManager;  
 13 import javax.swing.filechooser.FileSystemView;
 14 import javax.swing.table.TableCellEditor;  
 15 import javax.swing.table.TableCellRenderer;  
 16 import javax.swing.table.TableColumnModel;  
 17 
 18 import org.apache.commons.net.ftp.FTPFile;
 19   
 20 public class ButtonColumn extends AbstractCellEditor implements  
 21         TableCellRenderer, TableCellEditor, ActionListener {  
 22     JTable table;  
 23     JButton renderButton;  
 24     JButton editButton;  
 25     String text;  
 26   
 27     public ButtonColumn(JTable table, int column) {  
 28         super();  
 29         this.table = table;  
 30         renderButton = new JButton();  
 31         editButton = new JButton();  
 32         editButton.setFocusPainted(false);  
 33         editButton.addActionListener(this);  
 34   
 35         TableColumnModel columnModel = table.getColumnModel();  
 36         columnModel.getColumn(column).setCellRenderer(this);  
 37         columnModel.getColumn(column).setCellEditor(this);  
 38     }  
 39   
 40     public Component getTableCellRendererComponent(JTable table, Object value,  
 41             boolean isSelected, boolean hasFocus, int row, int column) {  
 42         if (hasFocus) {  
 43             renderButton.setForeground(table.getForeground());  
 44             renderButton.setBackground(UIManager.getColor("Button.background"));  
 45         } else if (isSelected) {  
 46             renderButton.setForeground(table.getSelectionForeground());  
 47             renderButton.setBackground(table.getSelectionBackground());  
 48         } else {  
 49             renderButton.setForeground(table.getForeground());  
 50             renderButton.setBackground(UIManager.getColor("Button.background"));  
 51         }  
 52   
 53         renderButton.setText((value == null) ? " " : value.toString());  
 54         return renderButton;  
 55     }  
 56   
 57     public Component getTableCellEditorComponent(JTable table, Object value,  
 58             boolean isSelected, int row, int column) {  
 59         text = (value == null) ? " " : value.toString();  
 60         editButton.setText(text);  
 61         return editButton;  
 62     }  
 63   
 64     public Object getCellEditorValue() {  
 65         return text;  
 66     }  
 67   
 68     public void actionPerformed(ActionEvent e) {  
 69         fireEditingStopped();  
 70 //        System.out.println(e.getActionCommand() + "   :    "  
 71 //                + table.getSelectedRow()); 
 72         FTPFile[]  file1=Frame_Main.getFtp().getAllFile();
 73         String from_file_name=file1[table.getSelectedRow()].getName();
 74         int result = 0;  
 75         File file = null;  
 76         String path = null;  
 77         JFileChooser fileChooser = new JFileChooser();  
 78         FileSystemView fsv = FileSystemView.getFileSystemView();
 79         fsv.createFileObject(from_file_name);
 80         //System.out.println(fsv.getHomeDirectory());  
 81         fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
 82         //fileChooser.setCurrentDirectory(new File(from_file_name));  
 83         fileChooser.setDialogTitle("另存为:");  
 84         //fileChooser.setApproveButtonText("保存");   
 85         result = fileChooser.showSaveDialog(null);
 86         if (JFileChooser.APPROVE_OPTION == result) {  
 87             path=fileChooser.getSelectedFile().getPath()+"\\"; //加"\\"是为了防止在桌面的时候C:destop最后没有\ 
 88             System.out.println("path: "+path);
 89             System.out.println("from_file_name:"+from_file_name);
 90             try {
 91                 Frame_Main.getFtp().download(from_file_name, path);
 92                 System.out.println("下载成功! ");
 93 
 94             } catch (IOException e1) {
 95                 // TODO Auto-generated catch block
 96                 e1.printStackTrace();
 97             }
 98             finally{
 99                 
100                 Frame_Main.getFtp().close_connection();
101             }
102             } 
103              
104     }  
105  
106     }

Ftp_by_apache服务类主要实现连接上传下载注销功能

  1 package com.huang.ftp;
  2 import java.io.FileInputStream;
  3 import java.io.FileNotFoundException;
  4 import java.io.FileOutputStream;
  5 import java.io.IOException;
  6 import java.io.InputStream;
  7 import java.io.OutputStream;
  8 
  9 import javax.imageio.stream.FileImageInputStream;
 10 
 11 import org.apache.commons.net.*; 
 12 import org.apache.commons.net.ftp.FTPClient;
 13 import org.apache.commons.net.ftp.FTPFile;
 14 
 15 
 16 public class Ftp_by_apache {
 17     
 18     
 19     FTPClient f=null;
 20     //默认构造函数
 21     public Ftp_by_apache(String url,String username,String password)
 22     {
 23         f=new FTPClient();
 24         //得到连接
 25         this.get_connection(url,username,password);
 26         
 27         
 28         
 29         
 30     }
 31     
 32     
 33     //连接服务器方法
 34     public void get_connection(String url,String username,String password){
 35         
 36     
 37         try {
 38             //连接指定服务器，默认端口为21  
 39             f.connect(url);
 40             System.out.println("connect success!");
 41             
 42             //设置链接编码，windows主机UTF-8会乱码，需要使用GBK或gb2312编码  
 43             f.setControlEncoding("GBK");
 44             
 45             //登录
 46             boolean login=f.login(username, password);
 47             if(login)
 48                 System.out.println("登录成功!");
 49             else
 50                 System.out.println("登录失败！");
 51         
 52         }
 53         catch (IOException e) {
 54             
 55             e.printStackTrace();
 56         }
 57         
 58         
 59     }    
 60     
 61     public void close_connection() {
 62         
 63          boolean logout=false;
 64         try {
 65             logout = f.logout();
 66         } catch (IOException e1) {
 67             // TODO Auto-generated catch block
 68             e1.printStackTrace();
 69         }  
 70          if (logout) {  
 71              System.out.println("注销成功!");  
 72          } else {  
 73              System.out.println("注销失败!");  
 74          }  
 75         
 76         if(f.isConnected())
 77             try {
 78                 System.out.println("关闭连接！");
 79                 f.disconnect();
 80             } catch (IOException e) {
 81             
 82                 e.printStackTrace();
 83             }
 84         
 85     }
 86     
 87     
 88     //获取所有文件和文件夹的名字
 89     public FTPFile[] getAllFile(){
 90         
 91         
 92         FTPFile[] files = null;
 93         try {
 94             files = f.listFiles();
 95         } catch (IOException e) {
 96             // TODO Auto-generated catch block
 97             e.printStackTrace();
 98         }
 99         
100         for(FTPFile file:files)
101         {
102             
103 //            if(file.isDirectory())
104 //                System.out.println(file.getName()+"是文件夹");
105 //            if(file.isFile())
106 //                System.out.println(file.getName()+"是文件");
107         }
108         return files;
109         
110     }
111     
112     
113     //生成InputStream用于上传本地文件  
114     public void upload(String File_path) throws IOException{
115         
116         InputStream input=null;
117         String[] File_name = null;
118         try {
119             input = new FileInputStream(File_path);
120             File_name=File_path.split("\\\\");
121             System.out.println(File_name[File_name.length-1]);
122         } catch (FileNotFoundException e) {
123             // TODO Auto-generated catch block
124             e.printStackTrace();
125         }
126         
127          //上传文件  
128         System.out.println(File_name[File_name.length-1]);
129         f.storeFile(File_name[File_name.length-1], input);
130         System.out.println("上传成功!");
131         
132         if(input!=null)
133         input.close();
134         
135         
136         
137     }
138     
139     
140     //下载 from_file_name是下载的文件名,to_path是下载到的路径地址
141     public void download(String from_file_name,String to_path) throws IOException{
142         
143         
144         
145         OutputStream output=null;
146         try {
147             output = new FileOutputStream(to_path+from_file_name);
148         } catch (FileNotFoundException e) {
149             // TODO Auto-generated catch block
150             e.printStackTrace();
151         }
152         f.retrieveFile(from_file_name, output);
153         if(output!=null)
154         {
155             try {
156                 if(output!=null)
157                 output.close();
158             } catch (IOException e) {
159                 // TODO Auto-generated catch block
160                 e.printStackTrace();
161             }
162         }
163         
164         
165     }
166             
167     
168         
169 
170     
171     
172     
173 }