Node.js http.ServerResponse.statusCode 属性

httpServerResponse.statusCode是 HTTP 模块中的 ServerResponse 类的内置应用程序编程接口，用于此属性控制在刷新标头时将发送给客户端的状态代码。

句法：

const response.statusCode

参数：此属性不接受任何参数作为参数。

返回值：此属性返回将发送给客户端的状态代码。

示例 1：文件名-index.js

Javascript

// 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

现在打开浏览器并转到http://localhost:3000/ ，您将看到以下输出：

statusCode : 200

示例 2：文件名-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

现在打开浏览器并转到http://localhost:3000/ ，您将看到以下输出：

statusCode : 200

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