Spring 中的Http请求工具

版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/u014087707/article/details/83145354

Spring 中的Http请求工具

RestTemplate

@Test
public void restTemplateTest() {
    ResponseEntity<String> resp = new RestTemplate()
            .getForEntity(url, String.class);
    if (resp.getStatusCode() == HttpStatus.OK) {
        System.out.println("AsyncRestTemplate响应为: " + resp.getBody());
    }
}

AsyncRestTemplate @Deprecated

    @Test
    public void asyncRestTemplateTest() throws InterruptedException {
        new AsyncRestTemplate()
                .getForEntity(url, String.class)
                .addCallback(
                        new ListenableFutureCallback<ResponseEntity<String>>() {
                            @Override
                            public void onFailure(Throwable ex) {
                            }
                            @Override
                            public void onSuccess(ResponseEntity<String> result) {
                                if (result.getStatusCode() == HttpStatus.OK) {
                                    System.out.println("AsyncRestTemplate响应为: " + result.getBody());
                                }
                            }
                        }
                );
        System.out.println(1);
        Thread.sleep(3000);
        System.out.println(2);
    }

RestTemplate To Sync

   @Test
    public void monoRestTemplate() throws InterruptedException {
        //同步阻塞
//        Mono.fromCallable(() -> new RestTemplate()
//                .getForObject(url, String.class))
//                .subscribe(res -> {
//                    System.out.println("monoRestTemplate响应为: " + res);
//                });

        //异步通知
        Mono.fromCallable(() -> new RestTemplate()
                .getForObject(url, String.class))
                .subscribeOn(Schedulers.elastic())
                .subscribe(res -> {
                    System.out.println("monoRestTemplate响应为: " + res);
                });

        System.out.println("1");
        Thread.sleep(3000);
        System.out.println("2");
    }

WebClient

	@Test
    public void webClient() throws InterruptedException {
        Mono<String> resp = WebClient
                .builder()
                .build()
                .get()
                .uri(url)
                .retrieve()
                .bodyToMono(String.class);

        resp.subscribe(
                s -> {
                    System.out.println("响应1为: " + s);
                }
        );

        WebClient
                .builder()
                .build()
                .get()
                .uri(url)
                .exchange()
                .subscribe(response -> {
                    if (response.statusCode() == HttpStatus.OK) {
                        response.bodyToMono(String.class).subscribe(
                                result -> {
                                    System.out.println("响应2为: " + result);
                                }
                        );
                    }
                });

        Thread.sleep(3333);
    }

猜你喜欢

转载自blog.csdn.net/u014087707/article/details/83145354
0条评论
添加一条新回复