Node.js http.ServerResponse.writeProcessing()用法及代码示例

httpServerResponse.writeProcessing()是HTTP模块中的类ServerResponse的内置应用程序编程接口，该接口用于向客户端发送HTTP /1.1 102处理消息。

用法:

response.writeProcessing()

参数：此方法不接受任何参数作为参数。

返回值：此方法无返回值。

范例1：Filename-index.js

Javascript

// Node.js program to demonstrate the   
// response.writeProcessing() 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) { 
  
    // Sending a HTTP/1.1 102 Processing message 
    // by using socket method 
    response.writeProcessing(); 
  
    // Display result 
    // by using end() method 
    response.end("HTTP/1.1 102 Processing message"
    + " has been sent", 'utf8', () => { 
        console.log("displaying the result..."); 
        httpServer.close(() => { 
            console.log("server is closed") 
        }) 
    }); 
}); 
  
// Listening to http Server  
httpServer.listen(PORT, () => { 
    console.log("Server is running at port 3000..."); 
});

使用以下命令运行index.js文件：

node index.js

输出：

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

现在在浏览器中运行http：//localhost：3000 /，您将在屏幕上看到以下输出：

HTTP/1.1 102 Processing message has been sent

示例2：Filename-index.js

Javascript

// Node.js program to demonstrate the   
// response.writeProcessing() method 
  
// Importing http module  
var http = require('http'); 
  
// Request and response handler  
const http2Handlers = (request, response) => { 
  
    // Sending a HTTP/1.1 102 Processing message 
    // by using socket method 
    response.writeProcessing(); 
  
    // Display result 
    // by using end() method 
    response.end("HTTP/1.1 102 Processing message"
    + " has been sent", 'utf8', () => { 
            console.log("displaying the result..."); 
  
            httpServer.close(() => { 
                console.log("server is closed") 
            }) 
        }); 
}; 
  
// Creating http Server  
var httpServer = http.createServer( 
    http2Handlers).listen(3000, () => { 
    console.log("Server is running at port 3000..."); 
});

使用以下命令运行index.js文件：

node index.js

输出：

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

现在在浏览器中运行http：//localhost：3000 /，您将在屏幕上看到以下输出：

HTTP/1.1 102 Processing message has been sent

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

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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.ServerResponse.writeProcessing() 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。