java 基于Socket局域网文件传输v1.3

太过爱你忘了你带给我的痛 2022-05-22 05:36 260阅读 0赞

为什么我会做这个软件呢

因为我们宿舍喜欢打打求生之路 安装第三方地图的时候一般都是一人下载 然后通过QQ发给其他人

QQ传输速度太慢，于是开发了这个软件

时间2018.1.11

发送.java

package v1_3;
 
 import java.awt.Component;
 import java.awt.EventQueue;
 
 import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.border.EmptyBorder;
 
 import javax.swing.JTextField;
 import javax.swing.JLabel;
 import javax.swing.JButton;
 import javax.swing.JDialog;
 
 import java.awt.Font;
 import java.awt.Graphics;
 import java.net.InetAddress;
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 import java.awt.event.ActionListener;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
 import java.io.BufferedReader;
 import java.io.DataOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.awt.event.ActionEvent;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.UnsupportedFlavorException;
 import java.awt.dnd.DropTarget;
 import java.awt.dnd.DropTargetAdapter;
 import java.awt.dnd.DropTargetDropEvent;
 import java.awt.Color;
 
 public class 发送 extends JFrame {
 
 	private JPanel contentPane;
 	private JTextField textField;
 
 	/**
 	 * Launch the application.
 	 */
 	public static void main(String[] args) {
 		EventQueue.invokeLater(new Runnable() {
 			public void run() {
 				try {
 					发送 frame = new 发送(null);
 					frame.setVisible(true);
 				} catch (Exception e) {
 					e.printStackTrace();
 				}
 			}
 		});
 	}
 
 	/**
 	 * Create the frame.
 	 */
 	public static 发送 发送;
 	public static String mulu;
 	public 发送(Component toto) {
 		setResizable(false);
 		setTitle("\u5C40\u57DF\u7F51\u6587\u4EF6\u4F20\u8F93-\u53D1\u9001\u65B9V1.2");
 		发送=this;
 		this.addWindowListener(new WindowAdapter() {
 			public void windowClosing(WindowEvent arg0) {
 				super.windowClosing(arg0);
 				if(fasong.list.size()>0){
 //					javax.swing.JOptionPane.showMessageDialog(发送.this, "正在传输文件请稍后再试");
 					try {
 						Message dialog = new Message(发送.this, "正在传输文件请稍后再试...",278,129);
 						dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 						dialog.setVisible(true);
 					} catch (Exception ee) {
 						ee.printStackTrace();
 					}
 				}
 				else{
 					System.exit(0);
 				}
 			}
 		});
 		setDefaultCloseOperation(0);
 		setBounds(100, 100, 450, 300);
 		setLocationRelativeTo(toto);
 		setLocation(this.getX()-this.getWidth()/2, this.getY());
 		contentPane = new JPanel();
 		contentPane.setBackground(Color.WHITE);
 		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
 		setContentPane(contentPane);
 		contentPane.setLayout(null);
 		
 		textField = new JTextField();
 		textField.setBackground(Color.WHITE);
 		textField.setFont(new Font("微软雅黑", Font.PLAIN, 12));
 		textField.setEditable(false);
 		textField.setBounds(10, 194, 414, 21);
 		contentPane.add(textField);
 		textField.setColumns(10);
 		
 		JLabel label = new JLabel("\u6587\u4EF6\u8DEF\u5F84\uFF1A(\u628A\u6587\u4EF6\u62D6\u5230\u8FD9\u91CC)");
 		label.setFont(new Font("微软雅黑", Font.PLAIN, 14));
 		label.setBounds(10, 169, 213, 15);
 		contentPane.add(label);
 		
 //		JButton btnNewButton = new JButton("\u6D4F\u89C8");
 //		btnNewButton.setBackground(Color.WHITE);
 //		btnNewButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
 //		btnNewButton.addActionListener(new ActionListener() {
 //			public void actionPerformed(ActionEvent e) {
 //				JFileChooser jf = new JFileChooser();
 //				if (jf.showOpenDialog(null) == 0) {
 //					mulu = jf.getSelectedFile().getPath();
 //					textField.setText(mulu);
 //				}
 //			}
 //		});
 //		btnNewButton.setBounds(350, 193, 74, 23);
 //		contentPane.add(btnNewButton);
 		
 		JButton button = new JButton("\u53D1\u9001");
 		button.setBackground(Color.WHITE);
 		button.setFont(new Font("微软雅黑", Font.PLAIN, 14));
 		button.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
 				if(textField.getText().equals("")){
 //					javax.swing.JOptionPane.showMessageDialog(发送.this, "请设置文件路径...");
 					try {
 						Message dialog = new Message(发送.this, "请设置文件路径...",278,129);
 						dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 						dialog.setVisible(true);
 					} catch (Exception ee) {
 						ee.printStackTrace();
 					}
 				}
 				else if(fasong.list.size()>0){
 //					javax.swing.JOptionPane.showMessageDialog(发送.this, "正在传输文件请稍后再试");
 					try {
 						Message dialog = new Message(发送.this, "正在传输文件请稍后再试",278,129);
 						dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 						dialog.setVisible(true);
 					} catch (Exception ee) {
 						ee.printStackTrace();
 					}
 				}
 				else{//
 					File fi=new File(textField.getText());
 					if(!fi.isFile()){
 //						javax.swing.JOptionPane.showMessageDialog(发送.this, "非法文件 请重新选择");
 						try {
 							Message dialog = new Message(发送.this, "非法文件 请重新选择",278,129);
 							dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 							dialog.setVisible(true);
 						} catch (Exception ee) {
 							ee.printStackTrace();
 						}
 						return;
 					}
 					///
 					Socket so=null;
 					for(int i=0;i<fwq.list.size();i++){
 						so=fwq.list.get(i);
 						new Thread(new fasong(so)).start();
 					}
 					new Thread(new drawaaa()).start();
 					
 				}
 			}
 		});
 		button.setBounds(331, 228, 93, 23);
 		contentPane.add(button);
 		
 		JLabel lblNewLabel = new JLabel("\u8BF7\u8BA9\u5BF9\u65B9\u8FDE\u63A5\u5230\u60A8\u7684IP\uFF1A");
 		lblNewLabel.setFont(new Font("微软雅黑", Font.PLAIN, 16));
 		lblNewLabel.setBounds(10, 128, 414, 31);
 		contentPane.add(lblNewLabel);
 		
 		String s=null;
 		try {
 			s = "" + InetAddress.getLocalHost();
 		} catch (UnknownHostException e) {
 			e.printStackTrace();
 		}
 		StringBuffer ss = new StringBuffer();
 		try {
 			for (int i = s.indexOf("192"); i < s.length(); i++) {
 				ss.append(s.charAt(i));
 			}
 		} catch (Exception e1) {
 			e1.printStackTrace();
 		}
 		lblNewLabel.setText("\u8BF7\u8BA9\u5BF9\u65B9\u8FDE\u63A5\u5230\u60A8\u7684IP\uFF1A" + ss);
 		label_1.setFont(new Font("微软雅黑", Font.PLAIN, 12));
 		
 		label_1.setBounds(289, 0, 145, 184);
 		contentPane.add(label_1);
 		
 		JLabel label_2 = new JLabel("\u5982\u679C\u65E0\u6CD5\u8FDE\u63A5\u8BF7\u5C06\u672C\u673A\u9632\u706B\u5899\u5173\u95ED");
 		label_2.setFont(new Font("微软雅黑", Font.PLAIN, 12));
 		label_2.setBounds(10, 233, 236, 15);
 		contentPane.add(label_2);
 		new Thread(new fwq()).start();
 		//
 
 		new DropTarget(this,new DropTargetAdapter() {
 			
 			public void drop(DropTargetDropEvent arg0) {
 				发送.this.drop(arg0);
 //	 arg0.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);//接受滴 没这句就会报错
 //	 arg0.acceptDrop(3);//接受滴 没这句就会报错 3表示移动or复制
 //				List<?> list=null;
 //				try {
 //					list = (List<?>) arg0.getTransferable().getTransferData(DataFlavor.javaFileListFlavor);
 //										//get可转让的		get数据传输		数据的味道。java文件列表的味道
 //					File fi=(File)list.get(0);
 //					mulu=fi.getPath();
 //					textField.setText(mulu);
 //				} catch (UnsupportedFlavorException | IOException e) {
 //					e.printStackTrace();
 //				}
 			}
 
 		});
 		new DropTarget(textField,new DropTargetAdapter() {
 			
 			public void drop(DropTargetDropEvent arg0) {
 				发送.this.drop(arg0);
 			}
 		});
 	}
 	public static JLabel label_1 = new JLabel("");
 
 	public void paint(Graphics g) {
 		super.paint(g);
 //		int daxiao=12;
 //		int weizhi=4;
 //		int x=11;
 //		g.setFont(new Font("微软雅黑",0,daxiao));
 //		g.drawString("已连接："+fwq.list.size(), x, daxiao*weizhi++);
 		g.drawString("已连接："+fwq.list.size(),11,48);
 	}
 	public void drop(DropTargetDropEvent arg0){
 		arg0.acceptDrop(3);//接受滴 没这句就会报错 3表示移动or复制
 		List<?> list=null;
 		try {
 			list = (List<?>) arg0.getTransferable().getTransferData(DataFlavor.javaFileListFlavor);
 								//get可转让的		get数据传输		数据的味道。java文件列表的味道
 			File fi=(File)list.get(0);
 			mulu=fi.getPath();
 			textField.setText(mulu);
 		} catch (UnsupportedFlavorException | IOException e) {
 			e.printStackTrace();
 		}
 	}
 }
 class fwq implements Runnable{
 	public static ArrayList<Socket> list;
 	public static int yilianjie=0;
 
 	public void run() {
 		list=new ArrayList<Socket>();
 		ServerSocket soo=null;
 		Executor ex=Executors.newCachedThreadPool();
 		try {
 			soo=new ServerSocket(61855);
 		} catch (IOException e) {
 //			e.printStackTrace();
 //			javax.swing.JOptionPane.showMessageDialog(发送.发送, "端口61855已打开 启动程序失败 可能程序已经启动...");
 			try {
 				Message dialog = new Message(发送.发送, "<html>端口61855已打开 启动程序失败 可能程序已经启动..."
 						+ " 程序将在5秒内退出",380,129);
 				dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 				dialog.setVisible(true);
 			} catch (Exception ee) {
 				ee.printStackTrace();
 			}
 			try {
 				Thread.sleep(5000);
 			} catch (InterruptedException e1) {
 				e1.printStackTrace();
 			}
 //			System.exit(1);
 		}
 		while(true){
 		try {
 			Socket so=soo.accept();//等待连接s
 			list.add(so);
 			yilianjie++;
 			发送.发送.repaint();
 			ex.execute(new dklj(so));
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
 		}
 		
 		
 		
 	}
 	class dklj implements Runnable{
 		Socket so=null;
 		dklj(Socket so){
 			this.so=so;
 		}
 		public void run() {
 			BufferedReader in=null;
 			while(true){
 				try {
 					in=new BufferedReader(new InputStreamReader(so.getInputStream()));
 					if(in.readLine()==null){break;}
 				} catch (IOException e) {
 //					e.printStackTrace();
 //					System.out.println("一位用户已退出...");
 					break;
 				}
 				
 			}
 			fwq.yilianjie--;
 			list.remove(so);
 			发送.发送.repaint();
 			try {
 				if(in!=null)in.close();
 				if(so!=null)so.close();
 			} catch (IOException e) {
 				e.printStackTrace();
 			}
 			
 		}
 	}
 	
 }
 class fasong implements Runnable{
 	public static ArrayList<aaa> list=new ArrayList<aaa>();
 	Socket so=null;
 	private aaa aaa;
 	public fasong(Socket so){
 		this.so=so;
 		aaa=new aaa();
 		list.add(aaa);
 	}
 
 	public void run() {
 		File fi=new File(发送.mulu);
 		BufferedInputStream in=null;
 		try {
 			in=new BufferedInputStream(new FileInputStream(fi));
 			DataOutputStream out=new DataOutputStream(new BufferedOutputStream(so.getOutputStream()));
 			String name=fi.getName();
 			long size=fi.length();long yifasong=0;
 			int len;
 			byte[] by=new byte[1024*1024*10];
 			out.writeUTF(name);
 			out.flush();
 			out.writeLong(size);
 			out.flush();
 			
 			while((len=in.read(by))!=-1){
 				out.write(by,0,len);
 				out.flush();
 				yifasong+=len;
 //				System.out.println("已发送："+yifasong*100.0/size+"%");
 				double bfb=yifasong*100.0/size;
 				bfb=(int)(bfb*10);
 				bfb/=10;
 				aaa.s="已发送："+bfb+"%";
 //				发送.发送.repaint();
 			}
 			list.remove(aaa);
 //			发送.发送.repaint();
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
 		try {
 			if(in!=null)in.close();
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
 		发送.发送.repaint();
 		
 		
 	}
 	
 }
 class aaa{
 	public String s="已发送：0.0%";
 }
 class drawaaa implements Runnable{
 
 	public void run() {
 		while(fasong.list.size()>0){
 			try {
 				Thread.sleep(0);
 			} catch (InterruptedException e) {
 				e.printStackTrace();
 			}
 			aaa aaa=null;
 			StringBuffer str=new StringBuffer("<html>");
 			for(int i=0;i<fasong.list.size();i++){
 				aaa=fasong.list.get(i);
 				str.append(aaa.s);
 				str.append(" ");
 			}
 			发送.label_1.setText(str.toString());
 		}
 		发送.label_1.setText("已完成");
 		发送.发送.repaint();
 //		javax.swing.JOptionPane.showMessageDialog(发送.发送, "传输完成！");
 		try {
 			Message dialog = new Message(发送.发送, "传输完成！",278,129);
 			dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 			dialog.setVisible(true);
 		} catch (Exception ee) {
 			ee.printStackTrace();
 		}
 	}
 	
 }

接受.java

package v1_3;
    
    import java.awt.Component;
    import java.awt.EventQueue;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    import javax.swing.border.EmptyBorder;
    import javax.swing.filechooser.FileSystemView;
    import javax.swing.JTextField;
    import javax.swing.JButton;
    import javax.swing.JDialog;
    import javax.swing.JLabel;
    import java.awt.event.ActionListener;
    import java.awt.event.WindowAdapter;
    import java.awt.event.WindowEvent;
    import java.io.BufferedInputStream;
    import java.io.BufferedOutputStream;
    import java.io.BufferedReader;
    import java.io.BufferedWriter;
    import java.io.DataInputStream;
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.FileReader;
    import java.io.FileWriter;
    import java.io.IOException;
    import java.net.Socket;
    import java.awt.event.ActionEvent;
    import java.awt.Font;
    import java.awt.SystemColor;
    import java.awt.Color;
    
    public class 接受 extends JFrame {
    
    	private JPanel contentPane;
    	private JTextField textField;
    
    	/**
    	 * Launch the application.
    	 */
    	public static void main(String[] args) {
    		EventQueue.invokeLater(new Runnable() {
    			public void run() {
    				try {
    					接受 frame = new 接受(null);
    					frame.setVisible(true);
    				} catch (Exception e) {
    					e.printStackTrace();
    				}
    			}
    		});
    	}
    
    	/**
    	 * Create the frame.
    	 */
    	private void lujingout(){
    		BufferedWriter out=null;
    		try {
    			out=new BufferedWriter(new FileWriter("Set.txt"));
    			out.write(textField_1.getText()+"\r\n");
    		} catch (IOException e) {
    //			e.printStackTrace();
    		}
    		try {
    			if (out!=null) {
    				out.close();
    			}
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    	}
    	private void lujingin(){
    		BufferedReader in=null;
    		try {
    			in=new BufferedReader(new FileReader("Set.txt"));
    			String s=in.readLine();
    			textField_1.setText(s);
    		} catch (IOException e) {
    //			e.printStackTrace();
    		}
    		try {
    			if(in!=null){
    				in.close();
    			}
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    	}
    	public static boolean yilianjie=false;
    	public static boolean jinzhiguanbi=false;
    	public 接受(Component toto) {
    		setResizable(false);
    		setTitle("\u5C40\u57DF\u7F51\u6587\u4EF6\u4F20\u8F93-\u63A5\u6536\u65B9V1.2");
    		FileSystemView fsv = FileSystemView.getFileSystemView();  //注意了，这里重要的一句
    //		System.out.println(fsv.getHomeDirectory());                //得到桌面路径
    		setDefaultCloseOperation(0);
    		this.addWindowListener(new WindowAdapter() {
    		public void windowClosing(WindowEvent arg0) {
    			super.windowClosing(arg0);
    			if(jinzhiguanbi){
    				javax.swing.JOptionPane.showMessageDialog(接受.this, "正在传输文件...");
    			}
    			else{
    				lujingout();
    				System.exit(0);
    			}
    		}
    		});
    		setBounds(100, 100, 450, 300);
    		setLocationRelativeTo(toto);
    		setLocation(this.getX()+this.getWidth()/2, this.getY());
    		contentPane = new JPanel();
    		contentPane.setBackground(Color.WHITE);
    		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
    		setContentPane(contentPane);
    		contentPane.setLayout(null);
    		
    		textField = new JTextField();
    		textField.setFont(new Font("微软雅黑", Font.PLAIN, 12));
    		textField.addActionListener(new ActionListener() {
    			public void actionPerformed(ActionEvent e) {
    				if (!yilianjie) {
    					new Thread(new lianjie(textField.getText())).start();
    				} else {
    //					javax.swing.JOptionPane.showMessageDialog(接受.this, "您已连接服务器 请不要重复点击...");
    					try {
    						Message dialog = new Message(接受.this, "已连接服务器...",278,129);
    						dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    						dialog.setVisible(true);
    					} catch (Exception ee) {
    						ee.printStackTrace();
    					}
    				}
    			}
    		});
    		textField.setText("192.168.1.");
    		textField.setBounds(46, 139, 260, 21);
    		contentPane.add(textField);
    		textField.setColumns(10);
    		
    		JButton button = new JButton("\u8FDE\u63A5");
    		button.setBackground(Color.WHITE);
    		button.setFont(new Font("微软雅黑", Font.PLAIN, 14));
    		button.addActionListener(new ActionListener() {
    			public void actionPerformed(ActionEvent e) {
    				if(!yilianjie){
    				new Thread(new lianjie(textField.getText())).start();
    				}else{
    //					javax.swing.JOptionPane.showMessageDialog(接受.this, "您已连接服务器 请不要重复点击...");
    					try {
    						Message dialog = new Message(接受.this, "已连接服务器...",278,129);
    						dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    						dialog.setVisible(true);
    					} catch (Exception ee) {
    						ee.printStackTrace();
    					}
    				}
    			}
    		});
    		button.setBounds(316, 138, 93, 23);
    		contentPane.add(button);
    		lblip.setFont(new Font("微软雅黑", Font.PLAIN, 14));
    		
    		lblip.setBounds(10, 114, 414, 15);
    		contentPane.add(lblip);
    		
    		textField_1 = new JTextField(fsv.getHomeDirectory().toString()+"\\");
    		textField_1.setFont(new Font("微软雅黑", Font.PLAIN, 12));
    		lujingin();
    		textField_1.setBounds(46, 195, 260, 21);
    		contentPane.add(textField_1);
    		textField_1.setColumns(10);
    		
    		label = new JLabel("\u53E6\u5B58\u4E3A\u76EE\u5F55\uFF1A");
    		label.setFont(new Font("微软雅黑", Font.PLAIN, 14));
    		label.setBounds(10, 170, 109, 15);
    		contentPane.add(label);
    		
    		button_1 = new JButton("\u6D4F\u89C8");
    		button_1.addActionListener(new ActionListener() {
    			public void actionPerformed(ActionEvent e) {
    //				javax.swing.JOptionPane.showMessageDialog(接受.this, "此按钮不可用，请将保存路径复制到编辑框");
    				try {
    					Message dialog = new Message(接受.this, "此按钮不可用 请将保存路径复制到编辑框",278,129);
    					dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    					dialog.setVisible(true);
    				} catch (Exception ee) {
    					ee.printStackTrace();
    				}
    			}
    		});
    		button_1.setBackground(Color.WHITE);
    		button_1.setFont(new Font("微软雅黑", Font.PLAIN, 14));
    		button_1.setBounds(316, 194, 93, 23);
    		contentPane.add(button_1);
    		
    		lblNewLabel = new JLabel("");
    		lblNewLabel.setFont(new Font("微软雅黑", Font.PLAIN, 12));
    		lblNewLabel.setBounds(142, 60, 144, 15);
    		contentPane.add(lblNewLabel);
    		
    		button_2 = new JButton("\u8BBE\u4E3A\u684C\u9762");
    		button_2.setBackground(Color.WHITE);
    		button_2.setFont(new Font("微软雅黑", Font.PLAIN, 14));
    		button_2.addActionListener(new ActionListener() {
    			public void actionPerformed(ActionEvent e) {
    				FileSystemView fsv = FileSystemView.getFileSystemView();  //注意了，这里重要的一句
    				textField_1.setText(fsv.getHomeDirectory()+"\\");
    			}
    		});
    		button_2.setBounds(213, 220, 93, 23);
    		contentPane.add(button_2);
    		
    		button_3 = new JButton("\u4F7F\u7528\u4E0A\u4E00\u6B21\u7684\u8DEF\u5F84");
    		button_3.setBackground(Color.WHITE);
    		button_3.setFont(new Font("微软雅黑", Font.PLAIN, 14));
    		button_3.addActionListener(new ActionListener() {
    			public void actionPerformed(ActionEvent e) {
    				lujingin();
    			}
    		});
    		button_3.setBounds(56, 220, 147, 23);
    		contentPane.add(button_3);
    		接受=this;
    	}
    	public static 接受 接受;
    	public static JLabel lblip = new JLabel("\u8BF7\u5148\u8FDE\u63A5\u5230\u5BF9\u65B9IP\uFF1A");
    	public static JTextField textField_1;
    	private JLabel label;
    	private JButton button_1;
    	public static JLabel lblNewLabel;
    	private JButton button_2;
    	private JButton button_3;
    
    }
    class lianjie implements Runnable{
    	public Socket so;
    	private String ip;
    	public lianjie(String s){
    		this.ip=s;
    	}
    
    	public void run() {
    		try {
    			接受.lblip.setText("正在连接"+ip+"...");
    			so=new Socket(ip,61855);
    			接受.lblip.setText("已连接"+ip+" 等待对方发送文件...");
    			接受.yilianjie=true;
    			new Thread(new shouwenjian()).start();
    		} catch (IOException e) {
    //			e.printStackTrace();
    			if(接受.yilianjie)
    				接受.lblip.setText("连接失败请检查IP是否正确");
    		}
    	}
    	class shouwenjian implements Runnable{
    
    		public void run() {
    			BufferedOutputStream out=null;
    			DataInputStream in=null;
    			try {
    				while (true) {
    					in = new DataInputStream(new BufferedInputStream(so.getInputStream()));
    					byte[] by = new byte[1024 * 1024 * 10];
    					String name = in.readUTF();
    					long size = in.readLong();
    					接受.jinzhiguanbi=true;
    					long jieshou = 0;
    					int len;
    					String s=接受.textField_1.getText();
    					char c=s.charAt(s.length()-1);
    					if(c!='\\'){
    						s+="\\";
    					}
    					//
    					File mulu=new File(s);
    					if (!mulu.getParentFile().exists()) {
    						mulu.getParentFile().mkdirs();
    					}
    					// 判断文件是否存在，不存在就创建文件
    					if (!mulu.exists() && !mulu.isDirectory()) {
    						mulu.mkdir();
    					}
    					//
    					File fi = new File(s + name);
    					out = new BufferedOutputStream(new FileOutputStream(fi));//可能会出错
    					while ((len = in.read(by)) != -1) {
    						out.write(by, 0, len);
    						out.flush();
    						jieshou += len;
    						double bfb=jieshou*100.0/size;
    						bfb=(int)(bfb*10);
    						bfb/=10;
    //						接受.lblNewLabel.setText("已接收：" + jieshou*100.0 / size  + "%");
    						接受.lblNewLabel.setText("已接收：" + bfb  + "%");
    //						接受.接受.repaint();
    						if (jieshou >= size) {
    							break;
    						}
    					}
    					out.close();
    //					javax.swing.JOptionPane.showMessageDialog(接受.接受, "文件接收完成...");
    					try {
    						Message dialog = new Message(接受.接受, "文件接收完成...",278,129);
    						dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    						dialog.setVisible(true);
    					} catch (Exception ee) {
    						ee.printStackTrace();
    					}
    					接受.jinzhiguanbi=false;
    				}
    			} catch (IOException e) {
    				e.printStackTrace();
    //				javax.swing.JOptionPane.showMessageDialog(接受.接受, "文件路径异常或发送方已关闭软件");
    				try {
    					Message dialog = new Message(接受.接受, "文件路径异常或发送方已关闭软件",278,129);
    					dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    					dialog.setVisible(true);
    				} catch (Exception ee) {
    					ee.printStackTrace();
    				}
    			}
    			
    			///
    			接受.jinzhiguanbi=false;
    			接受.yilianjie=false;
    			接受.lblip.setText("已断开连接");
    			try {
    				if(out!=null)out.close();
    				if(in!=null)in.close();
    				if(so!=null)so.close();
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    			
    			
    		}
    		
    	}
    	
    }

入口.java

package v1_3;
 
 import java.awt.EventQueue;
 
 import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.border.EmptyBorder;
 import javax.swing.JButton;
 import javax.swing.JDialog;
 
 import java.awt.Color;
 import java.awt.Font;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.UnsupportedFlavorException;
 import java.awt.dnd.DropTarget;
 import java.awt.dnd.DropTargetAdapter;
 import java.awt.dnd.DropTargetDropEvent;
 import java.awt.event.ActionListener;
 import java.io.File;
 import java.io.IOException;
 import java.util.List;
 import java.awt.event.ActionEvent;
 
 public class 入口 extends JFrame {
 
 	private JPanel contentPane;
 
 	public static void main(String[] args) {
 		EventQueue.invokeLater(new Runnable() {
 			public void run() {
 				try {
 					入口 frame = new 入口();
 					frame.setVisible(true);
 				} catch (Exception e) {
 					e.printStackTrace();
 				}
 				System.out.println("请不要关闭此窗口！！！");
 				System.out.println("请不要关闭此窗口！！！");
 				System.out.println("请不要关闭此窗口！！！");
 				System.out.print("重要是事情要说三遍");
 			}
 		});
 	}
 
 	public 入口() {
 		setResizable(false);
 		setTitle("\u5C40\u57DF\u7F51\u4F20\u8F93\u6587\u4EF6v1.2");
 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		setSize(450, 300);
 		setLocationRelativeTo(null);
 		contentPane = new JPanel();
 		contentPane.setBackground(Color.WHITE);
 		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
 		setContentPane(contentPane);
 		contentPane.setLayout(null);
 		
 		JButton btnNewButton = new JButton("\u53D1\u6587\u4EF6");
 		btnNewButton.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
 				发送 f=new 发送(入口.this);
 				入口.this.setVisible(false);
 				f.setVisible(true);
 			}
 		});
 		btnNewButton.setBackground(Color.WHITE);
 		btnNewButton.setFont(new Font("微软雅黑", Font.PLAIN, 16));
 		btnNewButton.setBounds(10, 81, 414, 32);
 		contentPane.add(btnNewButton);
 		
 		JButton button = new JButton("\u6536\u6587\u4EF6");
 		button.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
 				接受 f=new 接受(入口.this);
 				入口.this.setVisible(false);
 				f.setVisible(true);
 			}
 		});
 		button.setBackground(Color.WHITE);
 		button.setFont(new Font("微软雅黑", Font.PLAIN, 16));
 		button.setBounds(10, 123, 414, 32);
 		contentPane.add(button);
 		
 		JButton button_1 = new JButton("\u5173\u4E8E");
 		button_1.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
 //				javax.swing.JOptionPane.showMessageDialog(入口.this,"BY：李子果");
 				try {
 					Message dialog = new Message(入口.this,"<html>BY：李子果",278,129);
 					dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 					dialog.setVisible(true);
 				} catch (Exception ee) {
 					ee.printStackTrace();
 				}
 			}
 		});
 		button_1.setBackground(Color.WHITE);
 		button_1.setFont(new Font("微软雅黑", Font.PLAIN, 12));
 		button_1.setBounds(331, 228, 93, 23);
 		contentPane.add(button_1);
 		
 		JButton btnNewButton_1 = new JButton("\u7248\u672C\u8BF4\u660E");
 		btnNewButton_1.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
 //				javax.swing.JOptionPane.showMessageDialog(入口.this, "版本v1.2-新增拖拽文件上传 接发文件合并-兼容v1.1\n"
 //						+ "版本v1.1-修复大部分bug 新外观 支持多次传输\n"
 //						+ "版本v1.0-无介绍");
 //				new Message(入口.this,"<html>版本v1.2-新增拖拽文件上传 接发文件合并-兼容v1.1 "
 //						+ "版本v1.1-修复大部分bug 新外观 支持多次传输 "
 //						+ "版本v1.0-无介绍",374,158);
 				
 				try {
 					Message dialog = new Message(入口.this,"<html>版本v1.3-优化外观-兼容v1.2 v1.1 "
 							+ "版本v1.2-新增拖拽文件上传 接发文件合并-兼容v1.1 "
 							+ "版本v1.1-修复大部分bug 新外观 支持多次传输 "
 							+ "版本v1.0-无介绍",374,158);
 					dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 					dialog.setVisible(true);
 				} catch (Exception ee) {
 					ee.printStackTrace();
 				}
 			}
 		});
 		btnNewButton_1.setBackground(Color.WHITE);
 		btnNewButton_1.setFont(new Font("微软雅黑", Font.PLAIN, 12));
 		btnNewButton_1.setBounds(10, 228, 93, 23);
 		contentPane.add(btnNewButton_1);
 //		new DropTarget(this,new DropTargetAdapter() {
 //			
 //			public void drop(DropTargetDropEvent arg0) {
 //				arg0.acceptDrop(3);
 //				try {
 //					List<?> list=(List<?>) arg0.getTransferable().getTransferData(DataFlavor.javaFileListFlavor);
 //					File fi=(File)list.get(0);
 //					System.out.println(fi.getPath());
 //				} catch (UnsupportedFlavorException | IOException e) {
 //					// TODO 自动生成的 catch 块
 //					e.printStackTrace();
 //				}
 //			}
 //		});
 	}
 
 }

Message.java

package v1_3;
 
 import java.awt.BorderLayout;
 import java.awt.FlowLayout;
 
 import javax.swing.JButton;
 import javax.swing.JDialog;
 import javax.swing.JPanel;
 import javax.swing.border.EmptyBorder;
 import javax.swing.JLabel;
 import java.awt.Font;
 import java.awt.event.ActionListener;
 import java.awt.event.ActionEvent;
 import java.awt.Color;
 import java.awt.Component;
 
 import javax.swing.SwingConstants;
 
 public class Message extends JDialog {
 
 	/**
 	 * Launch the application.
 	 */
 	public static void main(String[] args) {
 		try {
 			Message dialog = new Message(null,"<html>123 123",450,300);
 			dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
 			System.out.println(JDialog.DISPOSE_ON_CLOSE);
 			dialog.setVisible(true);
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
 	}
 
 	/**
 	 * Create the dialog.
 	 */
 	public Message(Component a,String s,int w,int h) {
 		setTitle("\u6D88\u606F");
 		setResizable(false);
 		getContentPane().setBackground(Color.WHITE);
 //		setBounds(100, 100, 450, 300);
 		setSize(w, h);
 		setLocationRelativeTo(a);
 		getContentPane().setLayout(null);
 		
 		JLabel lblNewLabel = new JLabel(s);
 		lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
 		lblNewLabel.setFont(new Font("微软雅黑", Font.PLAIN, 12));
 //		lblNewLabel.setBounds(10, 10, 414, 208);
 		lblNewLabel.setBounds(10, 10, this.getWidth()-36, this.getHeight()-92);
 		getContentPane().add(lblNewLabel);
 		
 		JButton btnNewButton = new JButton("\u786E\u5B9A");
 		btnNewButton.setBackground(Color.WHITE);
 		btnNewButton.setFont(new Font("微软雅黑", Font.PLAIN, 12));
 		btnNewButton.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
 				Message.this.dispose();
 			}
 		});
 		btnNewButton.setBounds(331, 228, 93, 23);
 		getContentPane().add(btnNewButton);
 		btnNewButton.setLocation(this.getWidth()-btnNewButton.getWidth()-26, this.getHeight()-btnNewButton.getHeight()-49);
 	}
 }

下载地址：https://download.csdn.net/download/u010756046/10482469