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 }
运行结果：
1、连接
2、上传
3）下载
