swing 蓝牙发送文件

古城微笑少年丶 2023-10-12 08:44 4阅读 0赞

import java.awt.*;
    import java.awt.event.*;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.OutputStream;
    import javax.bluetooth.*;
    import javax.microedition.io.*;
    import javax.swing.*;
    
    /**
     * 蓝牙发送文件
     */
    public class BluetoothFileTransfer {
    
        public static void main(String[] args) {
            JFrame frame = new JFrame("Bluetooth File Transfer");
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setSize(700, 500);
            frame.setLocationRelativeTo(null);
            JPanel panel = new JPanel(new BorderLayout());
            frame.add(panel);
    
            // 文件选择器
            JFileChooser fileChooser = new JFileChooser();
            panel.add(fileChooser, BorderLayout.NORTH);
    
            // 发送文件按钮
            JButton sendButton = new JButton("Send File");
            panel.add(sendButton, BorderLayout.SOUTH);
    
            sendButton.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    File file = fileChooser.getSelectedFile();
                    if (file != null) {
                        try {
                            // 搜索蓝牙设备
                            LocalDevice localDevice = LocalDevice.getLocalDevice();
                            DiscoveryAgent agent = localDevice.getDiscoveryAgent();
                            RemoteDevice[] devices = agent.retrieveDevices(DiscoveryAgent.PREKNOWN);
    
                            // 找到手机设备
                            RemoteDevice phoneDevice = null;
                            for (RemoteDevice device : devices) {
                                System.out.println("device = " + device.getFriendlyName(false));
                                if (device.getFriendlyName(false).contains("齐天大圣")) {
                                    phoneDevice = device;
                                    break;
                                }
                            }
    
                            if (phoneDevice != null) {
                                // 建立蓝牙连接
    //                            UUID uuid = new UUID("1101", true);
                                String url = "btgoep://" + phoneDevice.getBluetoothAddress() + ":1;authenticate=false;encrypt=false;master=false";
                                StreamConnection conn = (StreamConnection) Connector.open(url);
                                OutputStream os = conn.openOutputStream();
    
                                // 文件传输
                                FileInputStream fis = new FileInputStream(file);
                                byte[] buffer = new byte[1024];
                                int bytesRead;
                                while ((bytesRead = fis.read(buffer)) != -1) {
                                    os.write(buffer, 0, bytesRead);
                                }
                                os.flush();
                                os.close();
                                fis.close();
                                conn.close();
    
                                JOptionPane.showMessageDialog(frame, "File sent successfully!");
                            } else {
                                JOptionPane.showMessageDialog(frame, "Phone device not found!");
                            }
                        } catch (Exception ex) {
                            ex.printStackTrace();
                            JOptionPane.showMessageDialog(frame, "Error: " + ex.getMessage());
                        }
                    } else {
                        JOptionPane.showMessageDialog(frame, "Please select a file!");
                    }
                }
            });
    
            frame.setVisible(true);
        }
    }

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[99c0cfa75fa0456c908112c31be08fad.png]: https://img-blog.csdnimg.cn/99c0cfa75fa0456c908112c31be08fad.png