HTTPClientDemo.java

package com.di1shuai.java11.http;

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

/**
 * @author Shea
 * @date 2021-01-22
 * @description 支持HTTP/1.1和HTTP/2 ，也支持 websockets
 * Java 9  引入
 * Java 10 更新
 * Java 11 标准化
 */
public class HTTPClientDemo {
    public static void main(String[] args) throws IOException, InterruptedException {
        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://di1shuai.com"))
                .GET()
                .build();

        // 同步
        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());

        // 异步
        client.sendAsync(request, HttpResponse.BodyHandlers.ofString())
                .thenApply(HttpResponse::body)
                .thenAccept(System.out::println);
    }

}