remove outdated info about force closing connections

content/docs/server.md

@@ -91,14 +91,10 @@ Actix Web keeps connections open to wait for subsequent requests.
 
 {{< include-example example="server" file="keep_alive.rs" section="keep-alive" >}}
 
-If the first option above is selected, then _keep alive_ state is calculated based on the response's _connection-type_. By default `HttpResponse::connection_type` is not defined. In that case -keep-alive is defined by the request's HTTP version.
+If the first option above is selected, then keep-alive is enabled for HTTP/1.1 requests if the response does not explicitly disallow it by, for example, setting the [connection type][httpconnectiontype] to `Close` or `Upgrade`. Force closing a connection can be done with [the `force_close()` method on `HttpResponseBuilder`](https://docs.rs/actix-web/3/actix_web/dev/struct.HttpResponseBuilder.html#method.force_close)
 
 > Keep-alive is **off** for HTTP/1.0 and is **on** for HTTP/1.1 and HTTP/2.0.
 
-_Connection type_ can be changed with `HttpResponseBuilder::connection_type()` method.
-
-{{< include-example example="server" file="keep_alive_tp.rs" section="example" >}}
-
 ## Graceful shutdown
 
 `HttpServer` supports graceful shutdown. After receiving a stop signal, workers have a specific amount of time to finish serving requests. Any workers still alive after the timeout are force-dropped. By default the shutdown timeout is set to 30 seconds. You can change this parameter with the [`HttpServer::shutdown_timeout()`][shutdowntimeout] method.
@@ -121,3 +117,4 @@ _Connection type_ can be changed with `HttpResponseBuilder::connection_type()` m
 [exampleopenssl]: https://github.com/actix/examples/tree/master/security/openssl
 [shutdowntimeout]: https://docs.rs/actix-web/3/actix_web/struct.HttpServer.html#method.shutdown_timeout
 [disablesignals]: https://docs.rs/actix-web/3/actix_web/struct.HttpServer.html#method.disable_signals
+[httpconnectiontype]: https://docs.rs/actix-web/3/actix_web/http/enum.ConnectionType.html

examples/server/src/keep_alive_tp.rs

@@ -1,14 +0,0 @@
-// <example>
-use actix_web::{http, HttpRequest, HttpResponse};
-
-async fn index(req: HttpRequest) -> HttpResponse {
-    HttpResponse::Ok()
-        .connection_type(http::ConnectionType::Close) // <- Close connection
-        .force_close() // <- Alternative method
-        .finish()
-}
-// </example>
-
-// ConnectionType::Close
-// ConnectionType::KeepAlive
-// ConnectionType::Upgrade

examples/server/src/main.rs

@@ -1,5 +1,4 @@
 pub mod keep_alive;
-// pub mod keep_alive_tp;
 pub mod signals;
 pub mod ssl;
 pub mod workers;