Node.js http.ClientRequest.reusedSocket 属性

http.ClientRequest.reusedSocket是 HTTP 模块中 ClientRequest 类的内置应用程序编程接口，用于检查请求是否通过重用套接字发送。

句法：

const request.reusedSocket

参数：此属性不接受任何参数作为参数。

返回值：此属性返回客户端请求主机的对象。

示例 1：文件名-index.js

Javascript

// Node.js program to demonstrate the  
// request.reusedSocket method
  
// Importing http module
const http = require('http');
  
// Create an HTTP server
const server = http.createServer((req, res) => {
  res.writeHead(200, { 'Content-Type': 'text/plain' });
  res.end('okay');
});
  
// Now that server is running
server.listen(3000, '127.0.0.1', () => {
  
  // Make a request
  const options = {
    port: 3000,
    host: '127.0.0.1',
    headers: {
      'Connection': 'Upgrade',
      'Upgrade': 'websocket'
    }
  };
  
  // Getting client request
  const req = http.request(options);
  
  req.host = '127.0.0.1'
  
  // Checking if the message has been
  // sent through reusedSocket or not
  // by using host method
  const v = req.reusedSocket;
  
  // Display the result
  if (v)
    console.log("message is sent through reusedSocket")
  else
    console.log("message is not sent through reusedSocket")
  
  process.exit(0)
});

使用以下命令运行index.js文件：

node index.js

输出：

message is not sent through reusedSocket

示例 2：文件名-index.js

Javascript

// Node.js program to demonstrate the  
// request.reusedSocket method
  
// Importing http module
const http = require('http');
  
// Create an HTTP server
http.createServer((req, res) => { })
  .listen(3000, '127.0.0.1', () => {
  
  // Getting client request
  const req = http.request({
    port: 3000,
    host: '127.0.0.1',
  });
  
  // Checking if the message has been
  // sent through reusedSocket or not
  // by using host method
  if (req.reusedSocket)
    console.log("message is sent through reusedSocket")
  else
    console.log("message is not sent through reusedSocket")
  
  process.exit(0)
});

使用以下命令运行index.js文件：

node index.js

输出：

message is not sent through reusedSocket

参考：https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_request_reusedsocket