如何使用 WebSocket 在 UWP Client 和 Java Server 之间进行通信?
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【中文标题】如何使用 WebSocket 在 UWP Client 和 Java Server 之间进行通信?【英文标题】:How to make communication between UWP Client and Java Server using WebSocket? 【发布时间】:2016-10-14 06:51:28 【问题描述】:我需要使用 WebSocket 在 UWP 客户端和 JAVA 服务器之间发送文本、原始数据类型和对象,但是我不知道如何编码。
我不明白这两种语言之间是否有任何区别使编码变得非常困难? (我搜索了在线教程,但仍然无法使我的代码工作)。
Provider.java:
public class Provider
ServerSocket providerSocket;
Socket connection = null;
OutputStream out;
InputStream in;
String message;
MesageModel model;
Provider()
void run()
try
providerSocket = new ServerSocket(9999, 10);
//2. Wait for connection
System.out.println("Waiting for connection");
connection = providerSocket.accept();
System.out.println("New connection accepted "+":" + connection.getPort());
in = connection.getInputStream();
out = connection.getOutputStream();
if(out == null)
System.out.println("Out Status : Null");
else
System.out.println("Out Status : Not Null");
sendMessage("Hello Client");
if(in == null)
System.out.println("In Status : Null");
else
receiveConnection();
catch(IOException ioException)
ioException.printStackTrace();
finally
//4: Closing connection
try
if(in != null)
System.out.println("Close In");
in.close();
if(out != null)
System.out.println("Close Out");
out.close();
System.out.println("Close Socket");
providerSocket.close();
catch(IOException ioException)
ioException.printStackTrace();
void receiveConnection() throws IOException
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder outsb = new StringBuilder();
String line = "";
System.out.println("In Status : Not Null");
System.out.println("In Status : Go To While to Read Line");
while ((line = reader.readLine()) != null)
outsb.append(line);
System.out.println(outsb.toString());
System.out.println(outsb.toString());
reader.close();
System.out.println("Closed Reader");
void sendMessage(String msg)
byte[] byteS = msg.getBytes();
try
out.write(byteS);
out.flush();
System.out.println("To Server >" + msg);
catch(IOException ioException)
ioException.printStackTrace();
public static void main(String args[])
Provider server = new Provider();
while(true)
server.run();
MainPage.xaml.cs
namespace WebsocketTest
public sealed partial class MainPage : Page
public MainPage()
this.InitializeComponent();
createSocket();
public async void createSocket()
MessageWebSocket webSock = new MessageWebSocket();
webSock.Control.MessageType = SocketMessageType.Binary;
webSock.MessageReceived += webSock_MsgReceived;
webSock.Closed += webSock_Closed;
Uri serverUri = new Uri("ws://localhost:9999");
try
await webSock.ConnectAsync(serverUri);
tbConnect.Text = "Connected";
webSock_SendMessage( webSock, "Hello");
tbError.Text = "Sent Greeting";
catch (Exception ex)
tbError.Text = ex.Message + " / " + ex.HResult + " / " + ex.Data;
private async Task webSock_SendMessage(MessageWebSocket webSock, string m)
BinaryWriter messageWriter = new BinaryWriter((Stream)webSock.OutputStream);
messageWriter.Write(m);
private void webSock_Closed(IWebSocket sender, WebSocketClosedEventArgs args)
private void webSock_MsgReceived(MessageWebSocket sender, MessageWebSocketMessageReceivedEventArgs args)
DataReader messageReader = args.GetDataReader();
messageReader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
string messageString = messageReader.ReadString(messageReader.UnconsumedBufferLength);
tbReceived.Text = messageString;
目前这些代码根本不起作用,......我无法发送,无法阅读......在双方。
我的问题:
如何从我的 UWP 客户端发送和读取消息?
如何从我的 JAVA 服务器发送和读取消息?
我需要一些有用的东西......代码示例。
【问题讨论】:
删除了教程和资源推荐 本文档:WebSockets 和 WebSocket sample 可能会有所帮助。 【参考方案1】:您的 Java 代码创建的是普通 TCP/IP 套接字,而不是 [websocket][1],后者是 TCP/IP 之上的更高级别协议。
如果您想要 websockets,您需要自己实现 websockets(如果您对网络编程不是很有经验,请不要这样做)或使用提供 websocket 服务器功能的 Java 库。 Jetty、Netty 或 J2EE 服务器可能是它的候选者。
【讨论】:
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