node . js http 2 session . local settings 方法
原文:https://www . geesforgeks . org/node-js-http 2 session-local settings-method/
http2session . local settings是 http2 模块中类 http2session 的内置应用编程接口，用于获取描述该 http2 session 当前本地设置的无原型对象。
语法:
const http2session.localSettings
参数:此方法不接受任何参数。
返回值:这个方法返回一个无原型对象，描述这个 Http2Session 的当前本地设置。
如何生成私钥和公钥证书
私钥
第一步:打开记事本，复制粘贴如下键
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
步骤 2: 另存为私钥. pem
公共证书
第一步:打开记事本，复制粘贴如下键
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
步骤 2: 另存为公共证书
示例 1: 文件名:index . js
Javascript
// Node.js program to demonstrate the
// http2session.localSettings 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() api
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 local setting by
// using localSetting API
const status = http2session.localSettings;
stream.end("Max header size : "
+ status.maxHeaderListSize);
// 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");
})
});
输出:
status : 200
Received: hello
Received: Max header size : 4294967295
client localSettings
server localSettings
使用以下命令运行 index.js 文件:
node index.js
示例 2: 文件名:index . js
Javascript
// Node.js program to demonstrate the
// http2session.localSettings 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() api
const server = http2.createServer(options);
server.on('stream', (stream, requestHeaders) => {
// Getting session object
// by using session api
const http2session = stream.session;
// Getting local setting by
// using localSetting API
const status = http2session.localSettings;
stream.end("header table size : "
+ status.headerTableSize);
// 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");
})
});
输出:
Received: header table size: 4096
client destroyed
server destroyed
使用以下命令运行 index.js 文件:
节点索引. js
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