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我有一个用JavaFX编写的应用程序，用一个非常简单的界面来控制剧院中的一些灯光。基本上有两个按钮，一个可以在3秒内消失，另一个在3秒内消失。该应用程序连接到以太网到串行服务器（Sealevel Sealink 4104）来控制灯光。嵌入式Java Web服务器隐藏应用界面
我想添加一个浏览器界面，以便可以通过任何移动设备控制应用程序。根据我从此视频获得的代码，我添加了一个Java Web服务器。
https://www.youtube.com/watch?v=G4Z2PQfOHdY
的应用程序运行，我可以得到网页我要寻找一个在浏览器中。但是，我的应用程序界面从不出现。这个想法是，应用程序界面始终存在，以表明它正在运行。网页界面将可用于将控制选项扩展到移动设备。
此时的主要问题是如何让Web服务器在后台运行而不会干扰应用界面的功能？
Web服务器代码：
package lightcontrol2;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.StringTokenizer;
public final class JavaWebserver {
public final void StartServer() throws Exception {
// Set port number.
int port = 9000;
// Establish the listening socket.
ServerSocket serverSocket = new ServerSocket(port);
// Process HTTP sevice requests in an infinite loop.
while (true) {
// Listen for TCP connection request.
Socket connectionSocket = serverSocket.accept();
// Construct an object to process the HTTP request message.
HttpRequest request = new HttpRequest(connectionSocket);
// Create a new thread to process the request.
Thread thread = new Thread(request);
// Start the thread.
thread.start();
}
}
}
final class HttpRequest implements Runnable {
// Return carriage return (CR) and line feed (LF).
final static String CRLF = "\r\n";
Socket socket;
// Constructor.
public HttpRequest(Socket socket) throws Exception {
this.socket = socket;
}
// Implement the run() method of the Runnable interface.
// Within run(), explicitly catch and handle exceptions
// with try/ catch block.
@Override
public void run() {
try {
processRequest();
} catch (Exception e){
System.out.println(e);
}
}
private void processRequest() throws Exception {
// Get a reference to the socket's input and output streams.
InputStream instream = socket.getInputStream();
DataOutputStream os = new DataOutputStream(socket.getOutputStream());
// Set up input stream filters.
// Page 169, 10th line down or so . . .
// Reads the input data.
BufferedReader br = new BufferedReader(new InputStreamReader(instream));
// Get the request line of the HTTP request message.
// Get path/file.html version of http
String requestLine = br.readLine();
// Display the request line.
System.out.println();
System.out.println(requestLine);
// Deal with the request.
// Extract the filename from the request line.
// This is an input method with deliminators.
StringTokenizer tokens = new StringTokenizer(requestLine);
// Skip over the method, which should be 'GET'.
tokens.nextToken();
String fileName = tokens.nextToken();
// Root of the server.
String root = "/www/";
fileName = root + fileName;
// Open the requested file.
FileInputStream fis = null;
boolean fileExists = true;
try {
fis = new FileInputStream(fileName);
} catch (FileNotFoundException e) {
fileExists = false;
}
// Construct the response message.
String statusLine = null;
String contentTypeLine = null;
String entityBody = null;
if (fileExists) {
statusLine = "HTTP/1.0 200 OK" + CRLF;
contentTypeLine = "Content-type: " + contentType(fileName) + CRLF;
}
else {
statusLine = "HTTP/1.0 404 Not Found" + CRLF;
contentTypeLine = "Content-type: " + "text/html" + CRLF;
entityBody = "<HTML>" +
"<HEAD><TITLE>Not Found</TITLE></HEAD>" +
"<BODY>NOt Found</BODY></HTML>";
}
//Send the status line.
os.writeBytes(statusLine);
// Sent the content type line.
os.writeBytes(contentTypeLine);
// Send a blank line to indicate the end of the header lines.
os.writeBytes(CRLF);
// Send the entity body.
if (fileExists) {
sendBytes(fis, os);
os.writeBytes(statusLine);
fis.close();
} else {
os.writeBytes(statusLine);
os.writeBytes(entityBody);
os.writeBytes(contentTypeLine);
}
System.out.println("*****");
System.out.println(fileName);
System.out.println("*****");
// Get and display the header lines.
String headerLine = null;
while ((headerLine = br.readLine()).length() != 0) {
System.out.println(headerLine);
}
// Close streams and socket.
os.close();
br.close();
socket.close();
}
private static String contentType(String fileName) {
if (fileName.endsWith(".htm") || fileName.endsWith(".html")) {
return "text/html";
}
if (fileName.endsWith(".jpg") || fileName.endsWith(".jpeg")) {
return "image/jpeg";
}
if (fileName.endsWith(".gif")) {
return "image/gif";
}
return "application/octet-stream";
}
private static void sendBytes(FileInputStream fis, OutputStream os) throws Exception {
// Construct 1K buffer to hold bytes on way to the socket.
byte[] buffer = new byte[1024];
int bytes = 0;
// Copy requested file into the socket's output stream.
// read() returns -1, indicating end of file.
while ((bytes = fis.read(buffer)) != -1) {
os.write(buffer, 0, bytes);
}
}
}
下面是接口代码：
package lightcontrol2;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;
public class LightControl2 extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
GridPane grid = createGrid();
SealinkConnect connect = new SealinkConnect();
JavaWebserver webserver = new JavaWebserver();
Button btnOn = new Button();
grid.add(btnOn, 0, 1);
btnOn.setText("3 Sec On");
btnOn.setOnAction((ActionEvent event) -> {
System.out.println("3N:100:A");
connect.sendCommand("3N:100:A");
});
Button btnOff = new Button();
grid.add(btnOff, 0, 2);
btnOff.setText("3 Sec Off");
btnOff.setOnAction((ActionEvent event) -> {
System.out.println("3F:A");
connect.sendCommand("3F:A");
});
BorderPane root = new BorderPane();
root.setPadding(new Insets(10));
root.setCenter(grid);
Scene scene = new Scene(root, 365, 300);
primaryStage.setTitle("Light Control Test");
primaryStage.setScene(scene);
scene.getStylesheets().add
(LightControl2.class.getResource("style.css").toExternalForm());
primaryStage.show();
connect.socketConnect();
webserver.StartServer();
}
private GridPane createGrid() {
GridPane grid = new GridPane();
grid.setAlignment(Pos.CENTER);
grid.setHgap(5);
grid.setVgap(10);
grid.setPadding(new Insets(10));
return grid;
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
如何提供网页上您的应用程序？想到JNLP，但这意味着整个应用程序将从服务器传输到客户端，在这种情况下，移动设备并不会成为一种好方法。 – hotzst
用户打开浏览器并键入运行该应用程序的计算机的IP地址。例如，192.168.1.16:9000/www/light control.html。 – CelestialCoyote