node . js http 2 server response . setheader()方法
原文:https://www . geesforgeks . org/node-js-http2 server response-set header-method/
Http2ServerResponse . setheader()是 http2 模块内的类 http2 server response 的内置应用程序编程接口，用于设置头名称和该数据头的特定值。
语法:
response.setHeader(name, value)
参数:该方法以下列参数为参数。
- Name: Header name.
- Value: the value of header.
返回值:这个方法没有什么可返回的。
如何生成 私钥和公钥证书？
文件名:私钥
第 1 步:打开记事本复制粘贴以下密钥，将文件另存为私钥. pem.
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
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.setHeader() method
// Importing the http2 module
const http2 = require('http2');
// Importing the fs module
const fs = require('fs');
// Private key and public certificate for access
const options = {
// Reading the file private.key.pem file synchronously
key: fs.readFileSync('private-key.pem'),
// Reading the file public.cert.pem file synchronously
cert: fs.readFileSync('public-cert.pem'),
};
// Request and response handler
const http2Handlers = (request, response) => {
// Setting new header by using response.setHeader()
response.setHeader('Content-Type', 'hello world; charset=utf-8');
// Getting header's object by using getHeaders() method
const value = response.getHeaders()
// Display the header
console.log(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 api
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');
// Handling the request
const req = client.request({ ':method': 'GET', ':path': '/'});
req.on('response', (responsesocket) => {
console.log("status : " + responsesocket[":status"]);
});
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:
{ 'content-type': 'hello world; charset=utf-8' }
status : 200
Received: hello
Received: priority weight : 16
client destroyed
server destroyed
示例 2:Filename:index . js
Javascript
// Node.js program to demonstrate the
// Http2ServerResponse.setHeader() method
// Importing http2 module
const http2 = require('http2');
// Importing fs module
const fs = require('fs');
// Private key and public certificate for access
const options = {
// Reading the private-key.pem file synchronously
key: fs.readFileSync('private-key.pem'),
// Reading the public-cert.pem file synchronously
cert: fs.readFileSync('public-cert.pem'),
};
// Request and response handler
const http2Handlers = (request, response) => {
// Setting new header
response.setHeader('Foo', 'bar');
response.setHeader('Set-Cookie', ['foo=bar', 'bar=baz']);
// Getting header's object
// by using getHeaders() method
const value = response.getHeaders()
// Display the header
console.log(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 api
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:
{ foo: 'bar', 'set-cookie': [ 'foo=bar', 'bar=baz' ] }
Received: The sum weight of all Http2Stream : 0
client destroyed
server destroyed
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