在spring客户端实现中，有没有更好的方法来并发调用REST API？

AsyncRestTemplate asyncRestTemplate = new AsyncRestTemplate();
ListenableFuture<ResponseEntity<String>> future = asyncRestTemplate.getForEntity(url, String.class);
future.addCallback(new ListenableFutureCallback<ResponseEntity<String>>() {
    @Override
    public void onSuccess(ResponseEntity<String> result) {
        // 处理成功回调
    }

    @Override
    public void onFailure(Throwable ex) {
        // 处理失败回调
    }
});

WebClient webClient = WebClient.create();
Mono<String> result = webClient.get().uri(url).retrieve().bodyToMono(String.class);
result.subscribe(
    response -> {
        // 处理成功回调
    },
    ex -> {
        // 处理失败回调
    }
);

AsyncRestTemplate asyncRestTemplate = new AsyncRestTemplate();
List<String> urls = Arrays.asList("url1", "url2", "url3");
List<ListenableFuture<ResponseEntity<String>>> futures = new ArrayList<>();
for (String url : urls) {
    ListenableFuture<ResponseEntity<String>> future = asyncRestTemplate.getForEntity(url, String.class);
    futures.add(future);
}
ListenableFuture<List<ResponseEntity<String>>> resultsFuture = FutureUtils.successfulList(futures);
resultsFuture.addCallback(new ListenableFutureCallback<List<ResponseEntity<String>>>() {
    @Override
    public void onSuccess(List<ResponseEntity<String>> results) {
        // 处理成功回调
    }

    @Override
    public void onFailure(Throwable ex) {
        // 处理失败回调
    }
});