Node.js http2session.setTimeout() 方法

http2session.setTimeout()是 http2 模块中的 http2session 类的内置应用程序编程接口，用于设置特定操作将发生的时间的持续时间。

句法：

const http2session.setTimeout(msecs, callback)

参数：该方法采用如下两个参数，如下图：

msecs：持续时间的整数值。
callback：作为参数传递的回调函数。

返回值：此方法只返回一个用于在超时后开始特定活动的回调函数。

如何生成私钥和公钥证书？

私钥：打开记事本并复制粘贴以下密钥：

现在将文件保存为private-key.pem

公共证书：打开记事本并复制粘贴以下密钥：

现在将文件保存为public-cert.pem

示例 1：文件名：index.js

Javascript

// Node.js program to demonstrate the
// http2session.setTimeout() 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'),
};
  
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options);
  
server.on('stream', (stream, requestHeaders) => {
 
  // Getting session object
  // by using session method
  const http2session = stream.session;
  
  // Haulting session for 3 secs
  // by using setTimeout method
  http2session.setTimeout(3000, () => {
      console.log("Executed after 3 seconds");
  })
  
  // 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");
  })
});

Javascript

// Node.js program to demonstrate the
// http2session.setTimeout() API
 
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'),
};
 
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options);
 
server.on('stream', (stream, requestHeaders) => {
 
  // Getting session object
  // by using session method
  const http2session = stream.session;
 
  // Gaulting session for 1 secs
  // by using setTimeout method
  http2session.setTimeout(1000, () => {
     console.log("Response after 1 second");
  })
 
  // 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': '/' });

使用以下命令运行 index.js 文件：

node index.js

输出：

Executed after 3 seconds
server destroyed

示例 2：文件名：index.js

Javascript

// Node.js program to demonstrate the
// http2session.setTimeout() API
 
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'),
};
 
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options);
 
server.on('stream', (stream, requestHeaders) => {
 
  // Getting session object
  // by using session method
  const http2session = stream.session;
 
  // Gaulting session for 1 secs
  // by using setTimeout method
  http2session.setTimeout(1000, () => {
     console.log("Response after 1 second");
  })
 
  // 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': '/' });

使用以下命令运行 index.js 文件：

node index.js

输出：

Response after 1 second
server destroyed

参考： https://nodejs.org/dist/latest-v12.x/docs/api/http2.html#http2_http2session_settimeout_msecs_callback