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Node.js Http2ServerRequest.aborted用法及代码示例


Http2ServerRequest.aborted 是 http2 模块中 Http2ServerRequest 类的内置应用程序编程接口,用于检查特定服务器请求是否中止。

用法:

const request.aborted

参数:此方法不接受任何参数作为参数。

返回值:此方法不返回任何值。

如何生成私钥和公钥



私钥:

步骤 - 1:打开记事本并复制粘贴以下键。

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

步骤 - 2:另存为private-key.pem

公开证书:

步骤 - 1:打开记事本并复制粘贴以下键。

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

步骤 - 2:另存为public-cert.pem

范例1: 文件名:index.js

Javascript


// Node.js program to demonstrate the
// request.aborted property
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) => {
  stream.respond({
    ':status':200,
    'content-type':'text/plain'
  });
 
  stream.write('hello ');
 
   const http2session = stream.session;
 
   // Getting state associated with this
   // session by using state API
   const status = http2session.state;
 
   stream.end("local window size:"
      + status.localWindowSize);
 
 
  // Stopping the server by
  // using the close() method
  server.close(()=>{
    console.log("server localSettings");
  })
});
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('response', (responseHeaders) => {
   
  console.log("status:"
    + responseHeaders[":status"]);
});
 
req.on('data', (data) => {
 
  console.log('Received:%s ',
    data.toString().replace(/(\n)/gm,""));
});
 
req.on('end', () => {
  client.close(()=>{
    console.log("client localSettings");
  })
 
  const status = req.aborted;
 
  if(status)
    console.log("request is aborted")
  else
    console.log("request is not aborted");
});


输出:



status:200
Received:hello
Received:local window size:65535
request is not aborted
client localSettings
server localSettings

使用以下命令运行index.js文件:

node index.js

范例2: 文件名:index.js

Javascript


// Node.js program to demonstrate the
// http2session.state property
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 api
   const http2session = stream.session;
 
   // Getting state associated with this
   // session by using state API
   const status = http2session.state;
 
   stream.end("numeric id of recent data:"
      + status.lastProcStreamID);
 
  // 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");
  })
 
  const status = req.aborted;
 
  if(status)
    console.log("request is aborted")
  else
    console.log("request is not aborted");
});


输出:



Received:numeric id of recent data:1
request is not aborted
client destroyed
server destroyed

使用以下命令运行index.js文件:

节点index.js

参考: https://nodejs.org/dist/latest-v12.x/docs/api/http2.html#http2_request_aborted




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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 Http2ServerRequest.aborted Property。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。