Node.js http。服务器响应.状态发现属性

原文:https://www . geesforgeks . org/node-js-http-server response-status code-property/

HTTP ServerResponse . status code是 HTTP 模块中类 server response 的一个内置应用程序编程接口,用于此属性控制当标头被刷新时将发送给客户端的状态代码。

语法:

const response.statusCode

参数:该属性不接受任何参数作为参数。

返回值:该属性返回将发送给客户端的状态代码。

示例 1: Filename-index.js

java 描述语言

// Node.js program to demonstrate the  
// response.statusCode 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 the statusCode 
    // by using statusCode method
    const value = response.statusCode;

    // Display result by using end() method
    response.end("statusCode : " + value, '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

现在打开浏览器,转到http://localhost:3000/,会看到如下输出:

statusCode : 200

示例 2:Filename-index . js

Javascript

// Node.js program to demonstrate the  
// response.statusCode method

// Importing http module 
var http = require('http');

// Request and response handler 
const httpHandlers = (request, response) => {

    // Getting the statusCode 
    // by using statusCode method
    const value = response.statusCode;

    // Display result by using end() method
    response.end("statusCode : " + value, 'utf8', () => {
        console.log("displaying the result...");

        httpServer.close(() => {
            console.log("server is closed")
        })
    });
};

// Creating http Server 
var httpServer = http.createServer(
    httpHandlers).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

现在打开浏览器,转到http://localhost:3000/,会看到如下输出:

statusCode : 200

参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/http . html # http _ response _ statuscode