深入解析JDK26对Http3特性的支持

作者：袖梨 2026-05-25

JDK 26原生支持HTTP/3协议，开发者无需依赖第三方库即可实现高效网络通信。下面详细介绍具体实现方法。

前言

作为JDK 26的标准特性，HTTP/3支持通过java.net.http包直接实现，显著简化了开发流程。

Http3使用

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
public class HttpDemo {
    static void main() throws IOException, InterruptedException {
        // 方式一：在 HttpClient 层面启用 HTTP/3
        HttpClient client = HttpClient.newBuilder()
                .version(HttpClient.Version.HTTP_3)
                .build();
// 方式二：仅在单个 HttpRequest 上指定 HTTP/3
        HttpRequest request = HttpRequest.newBuilder(URI.create("https://example.com/"))
                .version(HttpClient.Version.HTTP_3)
                .GET()
                .build();
        HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.version()); // HTTP_3
    }
}