Node.js http。服务器响应发送日期方法
原文:https://www . geesforgeks . org/node-js-http-server response-send date-method/
httpserverrresponse . send date是 http 模块中类 ServerResponse 的内置应用编程接口，用于检查日期头是否已经发送。HTTP 头也用于传递附加信息，如日期等。参考这篇文章。
语法:
response.sendDate
参数:此方法不接受任何参数作为参数。
返回值:当且仅当日期头已经发送时，该方法返回真。
示例 1:文件名:index.js
java 描述语言
// Node.js program to demonstrate the
// response.sendDate() APi
// 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){
// Checking if date header has been
// sent or not by using sendDate API
const value = response.sendDate;
// Display result
// by using end() api
response.end( "Date header status: "
+ value, '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: 粘贴本地主机地址 http://localhost:3000/。在浏览器的搜索栏中。
Date header status: true
示例 2:Filename:index . js
Javascript
// Node.js program to demonstrate the
// response.sendDate() APi
// Importing http module
var http = require('http');
// Request and response handler
const http2Handlers = (request, response) => {
// Checking if date header has been
// sent or not by using sendDate API
const value = response.sendDate;
// Display result by using end() api
response.end( "Date header status: "
+ value, 'utf8', () => {
console.log("displaying the result...");
// Closing the server
httpServer.close(()=>{
console.log("server is closed")
})
});
};
// Creating http Server and listening
// on the port 3000
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: 粘贴本地主机地址 http://localhost:3000/。在浏览器的搜索栏中。
Date header status: true
参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/http . html # http _ response _ send date
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