QHttpServer Class

QHttpServer is a simplified API for QAbstractHttpServer and QHttpServerRouter . 更多...

头：	#include <QHttpServer>
CMake:	find_package(Qt6 REQUIRED COMPONENTS HttpServer) target_link_libraries(mytarget PRIVATE Qt6::HttpServer)
qmake:	QT += httpserver
Since:	Qt 6.4
继承：	QAbstractHttpServer

所有成员列表，包括继承成员

公共类型

MissingHandler

公共函数

	QHttpServer (QObject * parent = nullptr)
virtual	~QHttpServer ()
void	afterRequest (ViewHandler && viewHandler )
bool	route (Args &&... args )
QHttpServerRouter *	router ()
void	setMissingHandler (QHttpServer::MissingHandler handler )

详细描述

QHttpServer server;
server.route("/", [] () {
    return "hello world";
});
server.listen();

成员类型文档编制

`[alias]` QHttpServer:: MissingHandler

Type alias for std::function<void(const QHttpServerRequest &request, QHttpServerResponder &&responder)>.

成员函数文档编制

`[explicit]` QHttpServer:: QHttpServer ( QObject * parent = nullptr)

Creates an instance of QHttpServer with parent parent .

`[virtual]` QHttpServer:: ~QHttpServer ()

销毁 QHttpServer .

template <typename ViewHandler> void QHttpServer:: afterRequest ( ViewHandler && viewHandler )

The viewHandler argument can be a function pointer, non-mutable lambda, or any other copiable callable with const call operator. The callable can take one or two optional arguments: QHttpServerResponse && and const QHttpServerRequest & . If both are given, they can be in either order.

范例：

QHttpServer server;
// Valid:
server.afterRequest([] (QHttpServerResponse &&resp, const QHttpServerRequest &request) {
    return std::move(resp);
}
server.afterRequest([] (const QHttpServerRequest &request, QHttpServerResponse &&resp) {
    return std::move(resp);
}
server.afterRequest([] (QHttpServerResponse &&resp) { return std::move(resp); }
// Invalid (compile time error):
// resp must be passed by universal reference
server.afterRequest([] (QHttpServerResponse &resp, const QHttpServerRequest &request) {
    return std::move(resp);
}
// request must be passed by const reference
server.afterRequest([] (QHttpServerResponse &&resp, QHttpServerRequest &request) {
    return std::move(resp);
}

template <typename Rule, typename Args> bool QHttpServer:: route ( Args &&... args )

This function is just a wrapper to simplify the router API.

This function takes variadic arguments args . The last argument is a callback ( ViewHandler ). The remaining arguments are used to create a new Rule (the default is QHttpServerRouterRule ). This is in turn added to the QHttpServerRouter . It returns true if a new rule is created, otherwise it returns false .

ViewHandler can be a function pointer, non-mutable lambda, or any other copiable callable with const call operator. The callable can take two optional special arguments: const QHttpServerRequest& and QHttpServerResponder&& . These special arguments must be the last in the parameter list, but in any order, and there can be none, one, or both of them present.

范例：

QHttpServer server;
// Valid:
server.route("test", [] (const int page) { return ""; });
server.route("test", [] (const int page, const QHttpServerRequest &request) { return ""; });
server.route("test", [] (QHttpServerResponder &&responder) { return ""; });
// Invalid (compile time error):
server.route("test", [] (const QHttpServerRequest &request, const int page) { return ""; }); // request must be last
server.route("test", [] (QHttpServerRequest &request) { return ""; });      // request must be passed by const reference
server.route("test", [] (QHttpServerResponder &responder) { return ""; });  // responder must be passed by universal reference

The request handler may return QFuture<QHttpServerResponse> if asynchronous processing is desired:

server.route("/feature/", [] (int id) {
    return QtConcurrent::run([] () {
        return QHttpServerResponse("the future is coming");
    });
});

另请参阅 QHttpServerRouter::addRule .

QHttpServerRouter *QHttpServer:: router ()

Returns the router object.

void QHttpServer:: setMissingHandler ( QHttpServer::MissingHandler handler )

Set a handler to call for unhandled paths.

The invocable passed as handler will be invoked for each request that cannot be handled by any of registered route handlers. Passing a default-constructed std::function resets the handler to the default one that produces replies with status 404 Not Found.