Spring webflux无阻塞响应

Question

public Mono<ServerResponse> handleLogin(ServerRequest request) {
    User body = request.bodyToMono(User.class).block();
    return userRepository.findById(body.getUsername())
            .filter(user -> passwordEncoder.matches(body.getPassword(), user.getPassword()))
            .flatMap(user -> ServerResponse.ok().body(Mono.just(tokens.store(user)), String.class))
            .switchIfEmpty(ServerResponse.badRequest().build());
}

    return request.bodyToMono(User.class)
            .flatMap(body -> userRepository.findById(body.getUsername()).flatMap(user -> Mono.just(new Object[]{body.getPassword(), user})))
            .filter(obj -> {
                User user = (User) obj[1];
                return user.isActive() && passwordEncoder.matches((CharSequence) obj[0], user.getPassword());
            })
            .flatMap(obj -> {
                User user = (User) obj[1];
                return ServerResponse.ok().body(Mono.just(tokens.store(user)), String.class);
            })
            .switchIfEmpty(ServerResponse.badRequest().build());

这是一个非阻塞的解决方案，但看起来并不那么优雅。它能以某种方式改进/简化吗？

Answer 1

1）一切都是流。

2）保持心境平静

3）完全没有阻塞操作。

public Mono<ServerResponse> handleLogin(ServerRequest request) {

    return request.bodyToMono(User.class)
                  .flatMap(body -> userRepository.findById(body.getUsername())
                  .filter(user -> passwordEncoder.matches(body.getPassword(), user.getPassword()))
                  .flatMap(user -> ServerResponse.ok().body(Mono.just(tokens.store(user)), String.class))
                  .switchIfEmpty(ServerResponse.badRequest().build());
}

return request.bodyToMono(User.class)
            .flatMap(body -> userRepository.findById(body.getUsername())                              
                                           .filter(user -> user.isActive())
                                           .filter(user -> passwordEncoder.matches(body.getPassword(), user.getPassword()))
            )
            .flatMap(user -> ServerResponse.ok().syncBody(tokens.store(user)))
            .switchIfEmpty(ServerResponse.badRequest().build());