这个问题在这里已经有答案了：

创建一个socket服务器，允许通过线程和java进行多个连接（2个答案）
socket编程多客户端到一台服务器（5个答案）
4个月前关门了。
如何在java中打开多个服务器套接字连接？
我的项目
我想用opencv和http流访问网络摄像头。
如何在浏览器中的多个选项卡中访问？

public class HttpStreamServer implements Runnable {

private BufferedImage img = null;
private ServerSocket serverSocket;
private Socket socket;
private final String boundary = "stream";
private OutputStream outputStream;
public Mat imag;

public HttpStreamServer(Mat imagFr) {
    this.imag = imagFr;
}

public void startStreamingServer() throws IOException {
    serverSocket = new ServerSocket(8080);
    socket = serverSocket.accept();
    writeHeader(socket.getOutputStream(), boundary);
}

private void writeHeader(OutputStream stream, String boundary) throws IOException {
    stream.write(("HTTP/1.0 200 OK\r\n" +
            "Connection: close\r\n" +
            "Max-Age: 0\r\n" +
            "Expires: 0\r\n" +
            "Cache-Control: no-store, no-cache, must-revalidate, pre-check=0, post-check=0, max-age=0\r\n" +
            "Pragma: no-cache\r\n" +
            "Content-Type: multipart/x-mixed-replace; " +
            "boundary=" + boundary + "\r\n" +
            "\r\n" +
            "--" + boundary + "\r\n").getBytes());
}

public void pushImage(Mat frame) throws IOException {
    if (frame == null)
        return;
    try {
        outputStream = socket.getOutputStream();
        BufferedImage img = Mat2bufferedImage(frame);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageIO.write(img, "jpg", baos);
        byte[] imageBytes = baos.toByteArray();
        outputStream.write(("Content-type: image/jpeg\r\n" +
                "Content-Length: " + imageBytes.length + "\r\n" +
                "\r\n").getBytes());
        outputStream.write(imageBytes);
        outputStream.write(("\r\n--" + boundary + "\r\n").getBytes());
    } catch (Exception ex) {
        socket = serverSocket.accept();
        writeHeader(socket.getOutputStream(), boundary);
    }
}

public void run() {
    try {
        System.out.print("go to  http://localhost:8080 with browser");
        startStreamingServer();

        while (true) {
            pushImage(imag);
        }
    } catch (IOException e) {
        return;
    }

}

public void stopStreamingServer() throws IOException {
    socket.close();
    serverSocket.close();
}

public static BufferedImage Mat2bufferedImage(Mat image) throws IOException {
    MatOfByte bytemat = new MatOfByte();
    Imgcodecs.imencode(".jpg", image, bytemat);
    byte[] bytes = bytemat.toArray();
    InputStream in = new ByteArrayInputStream(bytes);
    BufferedImage img = null;
    img = ImageIO.read(in);
    return img;
}
}

opencvcamerastream
当我打开 localhost:8080 在浏览器中，它工作平稳。
但是，当我在多个选项卡中打开时，它只在一个选项卡中工作。
此代码适用于单个连接。
如何在浏览器的多个选项卡中访问网络摄像头？