node.jshtp2serverresponse.statusmessage方法

原文:https://www . geesforgeks . org/node-js-http2 server response-status message-method/

http2 server response . statusmessage是 HTTP 2 模块内 Http2ServerResponse 类的内置应用程序编程接口，用于返回空字符串，因为它不受 HTTP/2 (RFC 7540 8.1.2.4)的支持。

语法:

response.statusMessage


参数:此方法不接受任何参数作为参数。

返回值:这个方法返回一个空字符串。

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1。文件名:私钥

打开记事本，复制粘贴以下密钥，将文件保存为 私钥. PEMT0】

2。文件名:公共证书

打开记事本，复制粘贴以下密钥，将文件保存为 公共证书T0】

示例 1:Filename:index . js

Javascript

// Node.js program to demonstrate the
// Http2ServerResponse.statusMessage method
const http2 = require('http2');
const fs = require('fs');
// Private key and public certificate for access
const optiOns= {
    key: fs.readFileSync('private-key.pem'),
    cert: fs.readFileSync('public-cert.pem'),
};
// Request and response handler
const http2Handlers = (request, response) => {
    // Getting status code
    // using response.statusMessage method
    const value = response.statusMessage;
    // Display the display
    console.log("status message : " + value)
};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options, http2Handlers);
server.on('stream', (stream, requestheader) => {
    stream.write('hello ');
    // Getting all information of this http2stream object
    // by using state method
    const status = stream.state;
    stream.end("priority weight : " + status.weight);
    // Stopping the server
    // by using the close() method
    server.close(() => {
        console.log("server destroyed");
    })
});
server.listen(8000);
// Creating and initializing client
// by using tls.connect() method
const client = http2.connect('http://localhost:8000');
const req = client.request({ 
  ':method': 'GET', ':path': '/' });
req.on('data', (data) => {
    console.log('Received: %s ',
    data.toString().replace(/(\n)/gm, ""));
});
req.on('end', () => {
    client.close(() => {
        console.log("client destroyed");
    })
});


使用以下命令运行 index.js 文件:

node index.js


输出:

status message :
(node:656) UnsupportedWarning: Status message is
not supported by HTTP/2 (RFC7540 8.1.2.4)
Received: hello
Received: priority weight : 16
client destroyed
server destroyed


示例 2:Filename:index . js

Javascript

// Node.js program to demonstrate the
// Http2ServerResponse.statusMessage method
const http2 = require('http2');
const fs = require('fs');
const { RSA_NO_PADDING } = require('constants');
// Private key and public certificate for access
const optiOns= {
    key: fs.readFileSync('private-key.pem'),
    cert: fs.readFileSync('public-cert.pem'),
};
// Request and response handler
const http2Handlers = (request, response) => {
    // Getting status code
    // using response.statusMessage method
    const value = response.statusMessage;
    // Display the display
    response.end("status message : " + value)
};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options, http2Handlers);
server.on('stream', (stream, requestHeaders) => {
    // Getting all information of this http2stream object
    // by using state method
    const status = stream.state;
    stream.end("The sum weight of all Http2Stream : " + 
    status.sumDependencyWeight);
    // Stopping the server
    // by using the close() method
    server.close(() => {
        console.log("server destroyed");
    })
});
server.listen(8000);
// Creating and initializing client
// by using tls.connect() method
const client = http2.connect('http://localhost:8000');
const req = client.request({ ':method': 'GET', 
':path': '/www.geeksforgeeks.org' });
req.on('data', (data) => {
    console.log('Received: %s ',
    data.toString().replace(/(\n)/gm, ""));
});
req.on('end', () => {
    client.close(() => {
        console.log("client destroyed");
    })
});


使用以下命令运行 index.js 文件:

node index.js


输出:

(node:8360) UnsupportedWarning: Status message is not supported
by HTTP/2 (RFC7540 8.1.2.4)
Received: status message :
client destroyed
server destroyed


参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/https 2 . html # https 2 _ response _ statusmessage