> For the complete documentation index, see [llms.txt](https://www.socketio4j.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.socketio4j.org/home/home-de/home.md).
# Socketio4j-Dokumentation
Willkommen auf der Entwicklerplattform Ihres Teams
Das Socketio4j-Projekt
Socket.IO-Server implementiert in Java. Echtzeit-Java-Framework
| | | | |
|---|
:leaf: | Erste Schritte | Starten Sie den SocketIO-Server in 5 Minuten. | Deutsch | no-code.jpg |
:server: | Server-API | Erfahren Sie mehr über die Socketio-Server-API | Deutsch | hosted.jpg |
:terminal: | Beispiele | Beispiele zum Erkunden des SocketIO-Servers in Core Java, Spring Boot, Quarkus und Micronaut | Examples | api-reference.jpg |
### In 5 Minuten loslegen
Ihr erster Server sollte der einfachste Schritt sein. Mit gut definierten Endpunkten und zum Kopieren bereiten Beispielen ist die Einrichtung schnell und vorhersehbar.\
Von null zu einer funktionierenden Verbindung in Minuten.
Loslegen API-Referenz
### Server
{% tabs %}
{% tab title="Core Java" %}
{% code title="Server.java" overflow="wrap" expandable="true" %}
```java
//package com.socketio4j.examples.core;
import com.socketio4j.socketio.Configuration;
import com.socketio4j.socketio.SocketIOServer;
import com.socketio4j.socketio.SocketIOClient;
public final class BasicServer {
public static void main(String[] args) {
Configuration config = new Configuration();
config.setHostname("0.0.0.0");
config.setPort(9092);
SocketIOServer server = new SocketIOServer(config);
server.addConnectListener(client -> {
System.out.println("Connected: " + client.getSessionId());
// Join room via query param: ?room=room1, verify room membership if needed
String room = client.getHandshakeData()
.getSingleUrlParam("room");
if (room != null) {
client.joinRoom(room);
System.out.println("Joined room: " + room);
}
});
server.addDisconnectListener(client ->
System.out.println("Disconnected: " + client.getSessionId())
);
server.addEventListener(
"message",
String.class,
(SocketIOClient client, String data, var ack) -> {
System.out.println("Received: " + data);
// Broadcast to all clients
server.getBroadcastOperations()
.sendEvent("message", data);
ack.sendAckData("ok");
}
);
server.start();
System.out.println("SocketIO4J server started on :9092");
Runtime.getRuntime().addShutdownHook(
new Thread(server::stop)
);
}
}
```
{% endcode %}
{% endtab %}
{% endtabs %}
### Client
{% tabs %}
{% tab title="Java" %}
{% code title="Client.java
" overflow="wrap" expandable="true" %}
```java
//package com.socketio4j.examples.core;
import io.socket.client.IO;
import io.socket.client.Socket;
import java.net.URISyntaxException;
import java.util.Collections;
public class SocketIoClient {
public static void main(String[] args) throws URISyntaxException {
IO.Options options = new IO.Options();
options.query = "room=room1";
options.forceNew = true;
Socket socket = IO.socket("http://localhost:9092", options);
socket.on(Socket.EVENT_CONNECT, args1 -> {
System.out.println("Connected: " + socket.id());
socket.emit("message", "Hello from Java");
});
socket.on("message", args1 ->
System.out.println("Received: " + args1[0])
);
socket.connect();
}
}
```
{% endcode %}
{% endtab %}
{% tab title="node.js" %}
{% code title="client.js" overflow="wrap" expandable="true" %}
```javascript
import { io } from "socket.io-client";
const socket = io("http://localhost:9092", {
query: { room: "room1" }
});
socket.on("connect", () => {
console.log("Connected:", socket.id);
socket.emit("message", "Hello from Node.js");
});
socket.on("message", (data) => {
console.log("Received:", data);
});
```
{% endcode %}
{% endtab %}
{% tab title="Dart / Flutter" %}
{% code overflow="wrap" expandable="true" %}
```dart
import 'package:socket_io_client/socket_io_client.dart' as IO;
void main() {
IO.Socket socket = IO.io(
'http://localhost:9092',
IO.OptionBuilder()
.setQuery({'room': 'room1'})
.setTransports(['websocket'])
.build(),
);
socket.onConnect((_) {
print('Connected: ${socket.id}');
socket.emit('message', 'Hello from Dart');
});
socket.on('message', (data) {
print('Received: $data');
});
}
```
{% endcode %}
{% endtab %}
{% tab title="Swift (iOS)" %}
{% code overflow="wrap" expandable="true" %}
```swift
import SocketIO
let manager = SocketManager(
socketURL: URL(string: "http://localhost:9092")!,
config: [.log(true), .connectParams(["room": "room1"])]
)
let socket = manager.defaultSocket
socket.on(clientEvent: .connect) { _, _ in
print("Connected:", socket.sid ?? "")
socket.emit("message", "Hello from Swift")
}
socket.on("message") { data, _ in
print("Received:", data[0])
}
socket.connect()
```
{% endcode %}
{% endtab %}
{% tab title="Browser - Vanilla JS" %}
{% code overflow="wrap" expandable="true" %}
```html
```
{% endcode %}
{% endtab %}
{% tab title="Python" %}
{% code title="client.py" overflow="wrap" expandable="true" %}
```py
import socketio
sio = socketio.Client()
@sio.event
def connect():
print("Connected:", sio.sid)
sio.emit("message", "Hello from Python")
@sio.on("message")
def on_message(data):
print("Received:", data)
sio.connect("http://localhost:9092?room=room1")
sio.wait()
```
{% endcode %}
{% endtab %}
{% tab title="C# (.NET)" %}
{% code overflow="wrap" expandable="true" %}
```csharp
using SocketIOClient;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
class Program
{
static async Task Main()
{
var client = new SocketIO("http://localhost:9092", new SocketIOOptions
{
Query = new[],
new KeyValuePair("room", "room1")
}
});
client.OnConnected += async (sender, e) =>
{
Console.WriteLine($"Connected: {client.Id}");
await client.EmitAsync("message", "Hello from C#");
};
client.On("message", response =>
{
Console.WriteLine("Received: " + response.GetValue());
});
await client.ConnectAsync();
await Task.Delay(-1);
}
}
```
{% endcode %}
{% endtab %}
{% tab title="Go" %}
{% code overflow="wrap" expandable="true" %}
```go
package main
import (
"fmt"
socketio "github.com/zhouhui8915/go-socket.io-client"
)
func main() {
opts := &socketio.Options{
Query: map[string]string{
"room": "room1",
},
}
client, err := socketio.NewClient("http://localhost:9092", opts)
if err != nil {
panic(err)
}
client.On("connect", func() {
fmt.Println("Connected")
client.Emit("message", "Hello from Go")
})
client.On("message", func(msg string) {
fmt.Println("Received:", msg)
})
select {}
}
```
{% endcode %}
{% endtab %}
{% tab title="Rust" %}
{% code overflow="wrap" expandable="true" %}
```rs
use rust_socketio::{ClientBuilder, Payload};
fn main() {
let client = ClientBuilder::new("http://localhost:9092")
.query("room", "room1")
.on("connect", |_, _| {
println!("Connected");
})
.on("message", |payload, _| {
if let Payload::String(msg) = payload {
println!("Received: {}", msg);
}
})
.connect()
.expect("Connection failed");
client.emit("message", "Hello from Rust").unwrap();
loop {}
}
```
{% endcode %}
{% endtab %}
{% endtabs %}
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