Node.js http。服务器响应.可写成品属性
原文:https://www . geesforgeks . org/node-js-http-server response-writable finished-property/
httpServerResponse . writable finished是 http 模块中类 serverrresponse 的内置应用编程接口，用于检查是否所有数据都已刷新。
语法:
response.writableFinished
参数:该属性不接受任何参数作为参数。
返回值:当且仅当所有数据都已刷新或未刷新时，该属性返回真。
示例 1:文件名:index.js
java 描述语言
// Node.js program to demonstrate the
// response.writableFinished 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 all the data has been flushed
// or not by using writableFinished API
const value = response.writableFinished;
// Display the result
// by using end() api
response.end( "Data has been flushed : "
+ 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...");
});
使用以下命令运行 index.js 文件:
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:
- Paste the localhost address http://localhost:3000/. In the search bar of the browser.
Data has been flushed : false
示例 2:Filename:index . js
Javascript
// Node.js program to demonstrate the
// response.writableFinished APi
// Importing http module
var http = require('http');
// Request and response handler
const http2Handlers = (request, response) => {
// checking all the data has been flushed or not
// by using writableFinished API
const value = response.writableFinished;
// display result
// by using end() api
response.end( "Data has been flushed : "
+ value, 'utf8', () => {
console.log("displaying the result...");
const value1 = response.writableFinished;
console.log("Data has been flushed "+value1);
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
控制台输出:
Server is running at port 3000...
displaying the result...
Data has been flushed true
浏览器输出:
- Paste the localhost address http://localhost:3000/. In the search bar of the browser.
Data has been flushed : false
参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/http . html # http _ response _ writable finished
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