Node.js http.ClientRequest.connection用法及代碼示例

http.ClientRequest.connection是HTTP模塊中的ClientRequest類的內置應用程序編程接口，用於獲取基礎客戶端請求套接字的引用。

用法:

const request.connection

參數：它不接受任何參數作為參數。

返回值：它不返回任何值。

範例1：Filename-index.js

Javascript

// Node.js program to demonstrate the   
// request.connection 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); 
  
    // Getting request socket 
    // by using connection method 
    const v = req.connection; 
  
    // Display the result 
    console.log("request socket:- " + v) 
  
    process.exit(0) 
});

使用以下命令運行index.js文件：

node index.js

輸出：

request socket:- null

示例2：Filename-index.js

Javascript

// Node.js program to demonstrate the   
// request.connection method 
  
// Importing http module 
const http = require('http'); 
  
// Create an HTTP server 
http.createServer((req, res) => { }) 
.listen(3000, '127.0.0.1', () => { 
  
    // Getting clinet request 
    const req = http.request({ 
        port:3000, 
        host:'127.0.0.1', 
    }); 
  
    // Getting request socket 
    // by using connection method 
    if (req.connection) { 
        console.log("Requested for Connection") 
    } else { 
        console.log("Not Requested for Connection") 
    } 
  
    process.exit(0) 
});

使用以下命令運行index.js文件：

node index.js

輸出：

Not Requested for Connection

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

相關用法

注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 Node.js http.ClientRequest.connection Property。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。