Node.js Http2ServerResponse.setHeader() 方法

Http2ServerResponse.setHeader()是 http2 模块中 Http2ServerResponse 类的内置应用程序编程接口，用于设置数据头的名称和特定值。

句法：

response.setHeader(name, value)

参数：此方法将以下参数作为参数。

名称：标题的名称。
value：标头的值。

返回值：此方法没有任何返回值。

如何生成私钥和公共证书？

文件名：私钥

步骤 - 1 ：打开记事本并复制粘贴以下密钥，将文件保存为private-key.pem。

2：文件名：公共证书

打开记事本并复制粘贴以下密钥将文件另存为public-cert.pem。

示例 1：文件名：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");
  })
   
});

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：

{ 'content-type': 'hello world; charset=utf-8' }
status : 200
Received: hello
Received: priority weight : 16
client destroyed
server destroyed

示例 2：文件名：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

参考：https://nodejs.org/dist/latest-v12.x/docs/api/http2.html#http2_response_setheader_name_value