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actix-website/content/docs/websockets.cn.md
2018-06-22 23:18:14 +08:00

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---
title: Websockets
menu: docs_proto
weight: 240
---
Actix支持WebSockets开箱即用。可以使用[ws :: WsStream](https://actix.rs/actix-web/actix_web/ws/struct.WsStream.html)将请求的Payload转换为[ws :: Message](https://actix.rs/actix-web/actix_web/ws/enum.Message.html)流然后使用流组合器来处理实际的消息但处理websocket通信使用http actor更简单。
以下是一个简单的websocket echo server的例子
```rust
use actix::*;
use actix_web::*;
/// Define http actor
struct Ws;
impl Actor for Ws {
type Context = ws::WebsocketContext<Self>;
}
/// Handler for ws::Message message
impl StreamHandler<ws::Message, ws::ProtocolError> for Ws {
fn handle(&mut self, msg: ws::Message, ctx: &mut Self::Context) {
match msg {
ws::Message::Ping(msg) => ctx.pong(&msg),
ws::Message::Text(text) => ctx.text(text),
ws::Message::Binary(bin) => ctx.binary(bin),
_ => (),
}
}
}
fn main() {
App::new()
.resource("/ws/", |r| r.f(|req| ws::start(req, Ws)))
.finish();
}
```
[websocket directory](https://github.com/actix/examples/tree/master/websocket/)提供了一个简单的websocket echo server示例 。
[websocket-chat directory](https://github.com/actix/examples/tree/master/websocket-chat/)提供了一个聊天服务器可以通过websocket或tcp连接进行聊天