局域网文件传输

ClientFile.java

/**
 * 更多资料欢迎浏览凯哥学堂官网：http://kaige123.com
 * @author 小沫
 */
 package com.tcp.file;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;

import javax.swing.JProgressBar;

public class ClientFile extends Thread {

    private static String ip;
    private static int port;
    private String filepath;
    private long size;
    private JProgressBar jprogressbar;
    public ClientFile(String ip, int port, String filepath, JProgressBar jprogressbar) {
        this.ip = ip;
        this.port = port;
        this.filepath = filepath;
        this.jprogressbar = jprogressbar;
    }
    public void run() {
        try {
            Socket socket = new Socket(ip, port);
            InputStream input = socket.getInputStream();
            OutputStream output = socket.getOutputStream();

            File file = new File(filepath);
            // 第一次传输文件名字and文件的大小
            String str1 = file.getName() + "	" + file.length();
            output.write(str1.getBytes());
            output.flush();
            byte[] b = new byte[100];
            int len = input.read(b);
            String s = new String(b, 0, len);
            // 如果服务器传输过来的是ok那么就开始传输字节
            if (s.equalsIgnoreCase("ok")) {
                long size = 0;
                jprogressbar.setMaximum((int) (file.length() / 10000));// 设置进度条最大值
                FileInputStream fin = new FileInputStream(file);
                byte[] b1 = new byte[1024 * 1024 * 2];
                while (fin.available() != 0) {
                    len = fin.read(b1);
                    output.write(b1, 0, len);
                    output.flush();
                    size += len;
                    jprogressbar.setValue((int) (size / 10000));
                }
                if (fin.available() == 0) {
                    javax.swing.JOptionPane.showMessageDialog(null, "传输完毕！即将推出......");
                    try {
                        Thread.sleep(1500);
                        System.exit(0);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                output.close();
                fin.close();
                socket.close();
            } else {
                // 传输的不是ok那么就弹出个信息框对方拒绝
                javax.swing.JOptionPane.showMessageDialog(null, "对方拒绝接收此数据！");
            }
        } catch (IOException e) {
            javax.swing.JOptionPane.showMessageDialog(null, "IOException");
        }
    }

}

ServerFile.java

/**
 * 更多资料欢迎浏览凯哥学堂官网：http://kaige123.com
 * @author 小沫
 */
 package com.tcp.file;

import java.io.*;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JProgressBar;

public class ServerFile extends Thread {

    private Socket socket;
    private JProgressBar jprogressbars;

    public ServerFile(Socket socket, JProgressBar jprogressbars) {
        this.socket = socket;
        this.jprogressbars = jprogressbars;
    }

    public void run() {
        try {
            InputStream input = socket.getInputStream();
            OutputStream output = socket.getOutputStream();

            byte[] b = new byte[100];
            int len = input.read(b);
            String ss = new String(b, 0, len);
            String[] str1 = ss.split("	");// 把接收到的信息按制表符拆分
            String filename = str1[0];// 起始位文件名称
            String filesize = str1[1];// 下标1位文件的大小
            long size = Long.parseLong(filesize);

            InetAddress ip = socket.getInetAddress();// 得到发送端的IP
            int port = socket.getPort();// 得到发送端的端口

            long s = size / 1024 / 1024;
            String name = " M";
            if (s < 1) {
                s = (size / 1024);
                name = " K";
            } else if (s > 1024) {
                float s1 = size / 1024 / 1024;
                s = (size / 1024 / 1024 / 1024);
                name = " G多";
            }
            // 弹出确认款，显示对方的ip端口以及文件的名称和大小是否需要接收
            int i = JOptionPane.showConfirmDialog(null,
                    "来自: " + ip + ":" + port + "
文件名称: " + filename + "
文件大小: " + s + name);

            // 如果点击确认
            if (i == JOptionPane.OK_OPTION) {
                // 那么传输ok给发送端示意可以接收
                output.write("ok".getBytes());
                output.flush();
                JFileChooser jf = new JFileChooser();
                // 存储到本地路径的夹子
                jf.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
                jf.showOpenDialog(null);
                jprogressbars.setMaximum((int) (size / 10000));
                FileOutputStream fout = new FileOutputStream(new File(jf.getSelectedFile(), filename));
                b = new byte[1024 * 1024 * 2];
                long size1 = 0;
                while ((len = input.read(b)) != -1) {
                    fout.write(b, 0, len);
                    size1 += len;
                    jprogressbars.setValue((int) (size1 / 10000));
                }
                fout.close();
                input.close();
                socket.close();

            } else {
                // 否不接收此文件
                output.write("no".getBytes());
                output.flush();
            }
        } catch (IOException e) {
            javax.swing.JOptionPane.showMessageDialog(null, "IOException");
        }

    }
    private static ServerSocket server = null;
    // 启动服务器
    public static void openServer(int port, JProgressBar jprogressbar) throws Exception {
        new Thread() {
            public void run() {
                try {
                    if (server != null && !server.isClosed()) {
                        server.close();
                    }
                    server = new ServerSocket(port);
                    new ServerFile(server.accept(), jprogressbar).start();
                } catch (IOException e) {
                    javax.swing.JOptionPane.showMessageDialog(null, "IOException");
                }
            }
        }.start();
    }

    // 关闭服务器
    public static void closeServer() {
        try {
            server.close();
        } catch (IOException e) {
            javax.swing.JOptionPane.showMessageDialog(null, "IOException");
        }
    }

}

SocketFileJFrame.java

/**
 * 更多资料欢迎浏览凯哥学堂官网：http://kaige123.com
 * @author 小沫
 */
 package com.tcp.file;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Image;
import java.awt.Toolkit;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import java.awt.Color;
import javax.swing.JTabbedPane;
import java.awt.Panel;
import javax.swing.border.TitledBorder;
import javax.swing.UIManager;
import javax.swing.border.CompoundBorder;
import javax.swing.JLabel;
import java.awt.Font;
import javax.swing.JTextField;
import javax.swing.JToggleButton;
import javax.swing.JProgressBar;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.event.AncestorListener;
import javax.swing.event.AncestorEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.awt.event.ActionEvent;

public class SocketFileJFrame extends JFrame {

    private JPanel contentPane;
    private JTextField textField;
    private JTextField textField_1;
    private JTextField textField_2;
    private JTextField textField_3;
    private JProgressBar progressBar_2;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    SocketFileJFrame frame = new SocketFileJFrame();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public SocketFileJFrame() {
        setIconImage(Toolkit.getDefaultToolkit()
                .getImage(SocketFileJFrame.class.getResource("/javax/swing/plaf/metal/icons/ocean/newFolder.gif")));
        setForeground(Color.WHITE);

        setResizable(false);
        setTitle("局域网文件传输 V1.0");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        int width = Toolkit.getDefaultToolkit().getScreenSize().width;//获取分辨率宽
        int heiht = Toolkit.getDefaultToolkit().getScreenSize().height;//获取分辨率高

        //分辨率宽高减去软件的宽高除以2把软件居中显示
        setBounds((width - 747) / 2, (heiht - 448) / 2, 738, 472);
        contentPane = new JPanel();
        contentPane.setBackground(Color.WHITE);
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        JPanel panel_1 = new JPanel();
        panel_1.setToolTipText("");
        panel_1.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"),
                "u6587u4EF6u63A5u6536u670Du52A1u5668", TitledBorder.LEADING, TitledBorder.TOP, null,
                new Color(0, 0, 0)));
        panel_1.setBackground(Color.WHITE);
        panel_1.setBounds(39, 28, 652, 119);
        contentPane.add(panel_1);
        panel_1.setLayout(null);

        JLabel label = new JLabel("u7AEFu53E3:");
        label.setFont(new Font("新宋体", Font.PLAIN, 22));
        label.setBounds(26, 31, 66, 35);
        panel_1.add(label);

        //端口文本框
        textField = new JTextField();
        textField.setFont(new Font("宋体", Font.PLAIN, 19));
        textField.setText("8080");
        textField.setBounds(89, 36, 126, 26);
        panel_1.add(textField);
        textField.setColumns(10);

        //服务器关闭启动的按钮
        JToggleButton tglbtnNewToggleButton = new JToggleButton("u542Fu52A8u670Du52A1u5668");
        tglbtnNewToggleButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {

                if (tglbtnNewToggleButton.isSelected()) {
                    //如果是按下显示关闭服务器
                    tglbtnNewToggleButton.setText("关闭服务器");
                    textField.setEnabled(false);//按下之后 端口文本框要设置不能写入
                    try {
                        //启动服务器
                        ServerFile.openServer(Integer.parseInt(textField.getText())
                                , progressBar_2);
                    }  catch (Exception e1) {
                        javax.swing.JOptionPane.showMessageDialog(null, "Exception");
                    }
                } else {
                    //否启动服务器
                    tglbtnNewToggleButton.setText("启动服务器");
                    textField.setEnabled(true);////弹起之后 端口文本框要设置可写状态
                    ServerFile.closeServer();//关闭服务器
                }

            }
        });
        tglbtnNewToggleButton.setFont(new Font("微软雅黑 Light", Font.PLAIN, 19));
        tglbtnNewToggleButton.setBackground(Color.WHITE);
        tglbtnNewToggleButton.setForeground(Color.DARK_GRAY);
        tglbtnNewToggleButton.setBounds(345, 34, 138, 28);
        panel_1.add(tglbtnNewToggleButton);

        //文件接收端的进度条
        progressBar_2 = new JProgressBar();
        progressBar_2.setBackground(Color.WHITE);
        progressBar_2.setForeground(new Color(255, 218, 185));
        progressBar_2.setStringPainted(true);
        progressBar_2.setBounds(460, 101, 190, 14);
        panel_1.add(progressBar_2);

        JPanel panel_2 = new JPanel();
        panel_2.setToolTipText("");
        panel_2.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "u6587u4EF6u4F20u8F93u7AEF",
                TitledBorder.LEADING, TitledBorder.TOP, null, new Color(0, 0, 0)));
        panel_2.setBackground(Color.WHITE);
        panel_2.setBounds(39, 191, 652, 202);
        contentPane.add(panel_2);
        panel_2.setLayout(null);

        //文件传输端的进度条
        JProgressBar progressBar_1 = new JProgressBar();
        progressBar_1.setFont(new Font("宋体", Font.PLAIN, 18));
        progressBar_1.setStringPainted(true);
        progressBar_1.setForeground(new Color(240, 128, 128));
        progressBar_1.setBackground(Color.WHITE);
        progressBar_1.setBounds(96, 169, 472, 20);
        panel_2.add(progressBar_1);

        JLabel lblIp = new JLabel("IPu5730u5740:");
        lblIp.setFont(new Font("微软雅黑 Light", Font.PLAIN, 20));
        lblIp.setBounds(26, 44, 70, 27);
        panel_2.add(lblIp);

        //IP地址文本框
        textField_1 = new JTextField();
        textField_1.setText("127.0.0.1");
        textField_1.setFont(new Font("新宋体", Font.PLAIN, 20));
        textField_1.setBounds(96, 44, 184, 30);
        panel_2.add(textField_1);
        textField_1.setColumns(10);

        JLabel label_1 = new JLabel("u7AEFu53E3:");
        label_1.setFont(new Font("微软雅黑 Light", Font.PLAIN, 20));
        label_1.setBounds(308, 42, 80, 30);
        panel_2.add(label_1);

        //端口文本框
        textField_2 = new JTextField();
        textField_2.setText("8080");
        textField_2.setFont(new Font("新宋体", Font.PLAIN, 20));
        textField_2.setColumns(10);
        textField_2.setBounds(359, 44, 80, 30);
        panel_2.add(textField_2);

        //打开本地路径的按钮
        JButton button = new JButton("...");
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                JFileChooser jf = new JFileChooser();
                jf.setFileSelectionMode(JFileChooser.FILES_ONLY);
                jf.showOpenDialog(SocketFileJFrame.this);
                textField_3.setText(jf.getSelectedFile().getPath());
            }
        });
        button.setBackground(Color.WHITE);
        button.setBounds(533, 51, 35, 20);
        panel_2.add(button);

        JLabel label_2 = new JLabel("u8DEFu5F84:");
        label_2.setFont(new Font("微软雅黑 Light", Font.PLAIN, 15));
        label_2.setBounds(489, 50, 44, 18);
        panel_2.add(label_2);

        //显示文件路径框
        textField_3 = new JTextField();
        textField_3.setEnabled(false);
        textField_3.setFont(new Font("微软雅黑 Light", Font.PLAIN, 20));
        textField_3.setBounds(96, 100, 343, 38);
        panel_2.add(textField_3);
        textField_3.setColumns(10);

        JLabel lblNewLabel = new JLabel("u6587u4EF6:");
        lblNewLabel.setFont(new Font("等线 Light", Font.PLAIN, 25));
        lblNewLabel.setBounds(33, 97, 56, 38);
        panel_2.add(lblNewLabel);
        //确定按钮
        JButton button_1 = new JButton("u786Eu5B9A");
        button_1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {

                ClientFile client = new ClientFile(
                        textField_1.getText(), Integer.parseInt(textField_2.getText()), 
                        textField_3.getText(), progressBar_1);
                client.start();
            }
        });
        button_1.setForeground(new Color(255, 255, 0));
        button_1.setBackground(new Color(233, 150, 122));
        button_1.setFont(new Font("微软雅黑 Light", Font.BOLD, 20));
        button_1.setBounds(475, 100, 91, 38);
        panel_2.add(button_1);
    }
}

​