您什么时候应该通过HTTP2使用节点的HTTP？

发布于 2025-02-07 13:02:17 字数 143 浏览 2 评论 0原文

在哪些情况下，您应该在http2模块上使用节点中的http模块？即使使用http/2的连接更快，大多数网站已经切换到它，大多数人和库似乎仍在使用http模块。这是什么原因？提前致谢。

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你穿错了嫁妆 2025-02-14 13:02:17

HTTP/2启用完整的请求和响应多路复用。实际上，这意味着可以使用浏览器与Web服务器建立的连接来发送多个请求并接收多个响应。这消除了为每个请求建立新连接所需的许多额外时间。

    /*
     * Example HTTP2 Server
     * Opening a full-duplex (stream) channel on port 6000
     *
     */
    
    // Dependencies
    var http2 = require('http2');
    
    // Init the server
    var server = http2.createServer();
    
    // On a stream, send back hello world html
    server.on('stream', function (stream, headers) {
      stream.respond({
        ':status': 200,
        'content-type': 'text/html',
      });
      stream.end('<html><body><p>Hello World</p></body></html>');
    });
    
    // Listen on 6000
    server.listen(6000);

/*
 * Example HTTP2 client
 * Connects to port 6000 and logs the response
 *
 */

// Dependencies
var http2 = require('http2');

// Create client
var client = http2.connect('http://localhost:6000');

// Create a request
var req = client.request({
  ':path': '/'
});

// When message is received, add the pieces of it together until you reach the end
var str = '';
req.on('data',function(chunk){
  str += chunk;
});

// When a message ends, log it out
req.on('end', function(){
  console.log(str);
});

// End the request
req.end();

HTTP/2 enables full request and response multiplexing. In practice, this means a connection made to a web server from your browser can be used to send multiple requests and receive multiple responses. This gets rid of a lot of the additional time that it takes to establish a new connection for each request.

    /*
     * Example HTTP2 Server
     * Opening a full-duplex (stream) channel on port 6000
     *
     */
    
    // Dependencies
    var http2 = require('http2');
    
    // Init the server
    var server = http2.createServer();
    
    // On a stream, send back hello world html
    server.on('stream', function (stream, headers) {
      stream.respond({
        ':status': 200,
        'content-type': 'text/html',
      });
      stream.end('<html><body><p>Hello World</p></body></html>');
    });
    
    // Listen on 6000
    server.listen(6000);

/*
 * Example HTTP2 client
 * Connects to port 6000 and logs the response
 *
 */

// Dependencies
var http2 = require('http2');

// Create client
var client = http2.connect('http://localhost:6000');

// Create a request
var req = client.request({
  ':path': '/'
});

// When message is received, add the pieces of it together until you reach the end
var str = '';
req.on('data',function(chunk){
  str += chunk;
});

// When a message ends, log it out
req.on('end', function(){
  console.log(str);
});

// End the request
req.end();

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