nodejs起一个http2

静态页面

其实就是复制官网的代码

其中证书 是我自己申请的可以用证书 dingshaohua.com

import fs from "fs";
import http2 from "node:http2";

const server = http2.createSecureServer({
  key: fs.readFileSync("/etc/letsencrypt/live/dingshaohua.com/privkey.pem"),
  cert: fs.readFileSync("/etc/letsencrypt/live/dingshaohua.com/fullchain.pem"),
});
server.on('stream', (stream, headers) => {
  stream.respond({
    'content-type': 'text/html; charset=utf-8',
    ':status': 200,
  });
  stream.end('<h1>Hello World</h1>');
});
server.listen(3002);

最终效果如下,访问：https://dingshaohua.com:3002

可以看到http2的接受请求处理 都在 server.on('stream',...)中，这正反映了 http2的数据都是流的本质

一个完整例子

import fs from "fs";
import http2 from "node:http2";

const server = http2.createSecureServer({
  key: fs.readFileSync("/etc/letsencrypt/live/dingshaohua.com/privkey.pem"),
  cert: fs.readFileSync("/etc/letsencrypt/live/dingshaohua.com/fullchain.pem"),
});
server.on("stream", (stream, headers) => {
  const method = headers[":method"];
  const path = headers[":path"];
  if (method === "GET" && path === "/") {
    stream.respond({
      "content-type": "text/html; charset=utf-8",
      ":status": 200,
    });
    stream.end("<h1>Hello World</h1>");
  } else if (method === "GET" && path === "/users") {
    const params = { name: "张三" };
    stream.respond({ ":status": 200, "content-type": "application/json" });
    stream.end(JSON.stringify(params));
  } else {
    stream.respond({
      "content-type": "text/html; charset=utf-8",
      ":status": 404,
    });
    stream.end("<h1>NOT FOUND</h1>");
  }
});
server.listen(3002);

http/2特性

服务器推送

这个忽略吧，目前所有浏览器为了安全考虑 都禁止了 服务器流的推送，以下测试代码 经过测试chrome和firefox 判断将永远过不去。

// 监听流事件以处理 HTTP/2 流
server.on("stream", (stream, headers) => {
  // 检查是否支持推送
  if (!stream.pushAllowed) {
    const msg = "客户端不支持服务器主动推送（流）";
    console.log(msg);
  }}

// 向客户端推送
  setTimeout(() => {
    stream.pushStream({ ":path": "/subscribe" }, (pushStream) => {
      pushStream.respond({
        "content-type": "application/json",
        ":status": 200,
      });
      pushStream.end(JSON.stringify({ name: "张三" }));
    });
  },3000);
});

支持

express暂不支持http2

nginx也不支持http2的代理