Node.js http.IncomingMessage.httpVersion用法及代码示例

http.IncomingMessage.httpVersion是http模块内的Incoming Message类的内置应用程序编程接口，用于获取客户端发送的HTTP版本。最常用的版本是HTTP /1.1。

用法:

request.httpVersion

参数：此方法不接受任何参数作为参数。

返回值：此方法返回客户端发送的HTTP版本。

示例1：Filename：index.js

// Node.js program to demonstrate the   
// request.httpVersion Method  
  
// Importing http module  
var http = require('http'); 
  
// Setting up PORT  
const PORT = process.env.PORT || 3000; 
  
// Creating http Server  
var httpServer = http.createServer( 
    function (request, response) { 
  
    // Getting httpVersion by using 
    // request.httpVersion Api 
    const http_version = request.httpVersion; 
  
    // Display the result 
    response.end("Httpversion:" 
        + http_version, 'utf8', () => { 
          
        console.log("displaying the result..."); 
  
        // Closing the server 
        httpServer.close(() => { 
            console.log("server is closed") 
        }) 
    }); 
}); 
  
// Listening to http Server  
httpServer.listen(PORT, () => { 
    console.log("Server is running at port 3000..."); 
});

执行命令：

node index.js

控制台输出：

Server is running at port 3000...
displaying the result...
displaying the result...
server is closed
server is closed

浏览器输出：在浏览器的搜索栏中粘贴本地主机地址http：//localhost：3000 /。

示例2：Filename：index.js

// Node.js program to demonstrate the   
// request.httpVersion Method  
  
// Importing http module  
var http = require('http'); 
  
// Request and response handler  
const http2Handlers = (request, response) => { 
  
    // Getting httpVersion by using 
    // request.httpVersion Api 
    const http_version = request.httpVersion; 
  
    // Display result 
    response.end("Httpversion:" 
        + http_version, 'utf8', () => { 
  
        console.log("displaying the result..."); 
  
        // Closing the server 
        httpServer.close(() => { 
            console.log("server is closed") 
        }) 
    }); 
}; 
  
// Creating http Server and listening 
// on given port number 
var httpServer = http.createServer( 
    http2Handlers).listen(3000, () => { 
    console.log("Server is running at port 3000..."); 
});

执行命令：

node index.js

控制台输出：

Server is running at port 3000...
displaying the result...
displaying the result...
server is closed
server is closed

浏览器输出：在浏览器的搜索栏中粘贴本地主机地址http：//localhost：3000 /。

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

相关用法

注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 Node.js http.IncomingMessage.httpVersion Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。