Node.js Http2ServerResponse.setTimeout()用法及代码示例

Http2ServerResponse.setTimeout()是http2模块内Http2ServerResponse类的内置应用程序编程接口，用于设置持续时间，在该持续时间后将执行特定操作。

用法:

const response.response.setTimeout(msecs[, callback])

参数：此方法采用duration的整数值。

返回值：此方法只返回超时后开始特定活动的回调函数。

如何产生一个 私钥和公共证书？

1.文件名： 私钥

步骤1：打开记事本并复制粘贴以下 key ，并将文件另存为private-key.pem

2.文件名： 公开证书

步骤-1：打开记事本和copy-paste以下 key 并将其另存为public-cert.pem

示例1：Filename：index.js

Javascript

// Node.js program to demonstrate the 
// Http2ServerResponse.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'), 
}; 
  
// Request and response handler 
const http2Handlers = (request, response) => { 
   
  // Setting timeout for the stream  
  response.setTimeout(3000,()=>{ 
    response.end("surprise!!!") 
 }) 
     
 }; 
  
// Creating and Initializing server using  
// http2.createServer() method 
  
const server = http2.createServer(options, http2Handlers); 
  
  
server.on('stream', (stream, requestHeaders) => { 
  
  
  // Stopping the server by using 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', (responseHeaders) => { 
  
  // Showing the response   
  console.log("status:" + responseHeaders[":status"]); 
}); 
  
req.on('data', (data) => { 
  
  // Showing the data 
  console.log('Received:%s ', 
          data.toString().replace(/(\n)/gm,"")); 
}); 
  
req.on('end', () => { 
  
  // Closing the client 
  client.close(()=>{ 
    console.log("client destroyed"); 
  }) 
    
});

使用以下命令运行index.js文件：

node index.js

输出：

status:200
Received:surprise!!!
client destroyed
server destroyed

示例2：Filename：index.js

Javascript

// Node.js program to demonstrate the 
// Http2ServerResponse.setTimeout() method 
const http2 = require('http2'); 
const fs = require('fs'); 
  
// Private key and public certificate for acess 
const options = { 
  key:fs.readFileSync('private-key.pem'), 
  cert:fs.readFileSync('public-cert.pem'), 
}; 
  
// Request and response handler 
const http2Handlers = (request, response) => { 
   
  // Setting timeout for the stream  
  response.setTimeout(3000,()=>{ 
    response.end("surprise!!!") 
  })  
}; 
  
// Creating and initializing server 
// by using http2.createServer() method 
const server = http2.createServer(options, http2Handlers); 
  
server.on('stream', (stream, requestHeaders) => { 
  
  // Closing stream before timeout 
  stream.close() 
  
  // Stopping the server 
  // by using the close() method 
  server.close(()=>{ 
    console.log("server destroyed"); 
  }) 
}); 
  
// Listing the server on port 8000 
server.listen(8000); 
  
// Creating and Initializing client 
// by using tls.connect() method 
const client = http2.connect('http://localhost:8000'); 
  
// Handling the GET Request 
const req = client.request({  
  ':method':'GET', ':path':'/' }); 
  
req.on('response', (responseHeaders) => { 
  
  // Showing the response 
  console.log("status:" + responseHeaders[":status"]); 
}); 
  
req.on('data', (data) => { 
  
  // Showing the data 
  console.log('Received:%s ', 
          data.toString().replace(/(\n)/gm,"")); 
}); 
  
req.on('end', () => { 
  
  // Closing the client 
  client.close(()=>{ 
    console.log("client destroyed"); 
  }) 
});

使用以下命令运行index.js文件：

node index.js

输出：

client destroyed
server destroyed

参考：https://nodejs.org/dist/latest-v12.x/docs/api/http2.html#http2_response_settimeout_msecs_callback

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注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 Node.js Http2ServerResponse.setTimeout() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。