我们关注HttpClientImpl::sendAsync 方法,它是所有请求调用的统一入口。里面做了两件事: 复制了用户请求 生成多重交换对象(MultiExchange),并让其处理请求 private<T>CompletableFuture<HttpResponse<T>>sendAsync(HttpRequestuserRequest,BodyHandler<T>response
HttpClient.Builder builder=HttpClient.newBuilder();HttpClient client=builder.connectTimeout(Duration.ofMillis(5000))//连接超时时间,单位为毫秒.build();String json=Files.readString(Path.of("C:\\Users\\gwc\\Desktop\\新建文件夹\\json.txt"));HttpRequest request=HttpRequest.newBuilder().header("Content...
1:threadCount;ExecutorServiceexecutorService=Executors.newFixedThreadPool(threadCount);HttpClientclient=HttpClient.newBuilder().build();Callable<String>callable1=()->{HttpRequestrequest=HttpRequest.newBuilder(URI.create(url)).GET().build();HttpResponse<String>response=client.send(request,HttpResponse.BodyH...
CompletableFuture<Path> result = client.sendAsync(request, HttpResponse.BodyHandlers.ofFile(Paths.get("D://1.mp4"))).thenApply(HttpResponse::body); System.out.println(result.get()); 1. 2. 3. 4. 5. 6. 7. 并发请求 通过CompletableFuture合并请求 HttpClient client = HttpClient.newHttpClient(...
version(HttpClient.Version.HTTP_2).build().newHttpClient(); //2.构建请求对象 HttpRequest request = HttpRequest.newBuilder().uri(URI.create("https://www.xxx.com")).GET().build(); //3.发送请求,处理响应 CompletableFuture<HttpResponse<String>> asyncResponse = client.sendAsync(request, Http...
client.sendAsync(request, asString()) .thenApply(HttpResponse::body) .thenAccept(System.out::println) .join(); 第一步:创建HttpClient 一般使用JDK 11中的HttpClient的第一步是创建HttpClient对象并进行配置。 指定协议(http/1.1或者http/2) 转发(redirect) ...
1 HttpClient 简介 java.net.http.HttpClient 是 jdk11 中正式启用的一个 http 工具类(其实早在 jdk9 的时候就已经存在了,只是处于孵化期),官方寓意为想要取代 HttpURLConnection 和 Apache HttpClient 等比较古老的开发工具。 新增的 HttpClient 截止到目前(2019年3月)为止其实网络资料还比较少,笔者只是根据一些博...
HttpClient client = HttpClient.newHttpClient();HttpRequest request = HttpRequest.newBuilder().uri(URI.create("http://openjdk.java.net/")).build();client.sendAsync(request, asString()).thenApply(HttpResponse::body).thenAccept(System.out::println).join(); ...
(HttpClient httpClient, URI uri){ HttpRequest request = HttpRequest.newBuilder() .GET() .uri(uri) .header("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36") .build(); return httpClient.sendAsync(...
HttpClient client = HttpClient.newHttpClient(); HttpRequest request = HttpRequest.newBuilder() .uri(URI.create("https://example.com")) .build(); client.sendAsync(request, BodyHandlers.ofString()) .thenApply(HttpResponse::body) .thenAccept(System.out::println); ...