Node.js server.close()用法及代碼示例

server.close()是tls模塊中Socket類的內置應用程序編程接口，用於阻止服務器接受新的客戶端請求。

用法:

const server.close()

參數：此方法不接受任何參數。

返回值：此方法隻返回用於偵聽服務器實例的回調函數。

如何生成私鑰和公共證書？

私鑰：打開記事本並複製粘貼以下 key ：

將文件另存為private-key.pem

公開證書：打開記事本並複製粘貼以下 key ：

將文件另存為public-cert.pem

範例1： 文件名：index.js

// Node.js program to demonstrate the 
// server.close() method 
  
var tls = require('tls'), 
    fs = require('fs'), 
  
// Port and host address for server     
PORT = 1337, 
HOST = '127.0.0.1'; 
   
// Private key and public certificate for access 
var options = { 
  key:fs.readFileSync('private-key.pem'), 
  cert:fs.readFileSync('public-cert.pem'), 
  rejectUnauthorized:false
}; 
  
// Creating and initializing server 
var server = tls.createServer(options, function(socket) { 
  
  // Print the data that we received 
  socket.on('data', function(data) { 
      console.log('\nReceived:%s ', 
      data.toString().replace(/(\n)/gm, "")); 
  }); 
  
  // Stopping the server 
  // by using the close() method 
  server.close(()=>{ 
    console.log("server closed successfully"); 
  }) 
}); 
  
  
// Start listening on a specific port and address 
server.listen(PORT, HOST, function() { 
  console.log("I'm listening at %s, on port %s", HOST, PORT); 
}); 
  
// Creating and initializing client 
var client = tls.connect(PORT, HOST, options, function() {   
  // Getting the bound address  
  // by using address method 
  const value = client.address(); 
  client.write("Bound address:" + value); 
  client.end(); 
});

使用以下命令運行index.js文件：

node index.js

輸出：

I'm listening at 127.0.0.1, on port 1337

Received:Bound address:[object Object]
server closed successfully

範例2： 文件名：index.js

// Node.js program to demonstrate the 
// server.close() method 
  
var tls = require('tls'), 
    fs = require('fs'), 
  
// Port and host address for server     
PORT = 1337, 
HOST = '127.0.0.1'; 
   
// Private key and public certificate for access 
var options = { 
  key:fs.readFileSync('private-key.pem'), 
  cert:fs.readFileSync('public-cert.pem'), 
  rejectUnauthorized:false
}; 
  
// Creating and initializing server 
var server = tls.createServer(options, function(socket) { 
  
  // Print the data that we received 
  socket.on('data', function(data) { 
     console.log('\nReceived:%s ', 
     data.toString().replace(/(\n)/gm, "")); 
  }); 
  
  // Stopping the server 
  // by using the close() method 
  server.close(); 
}); 
  
// Close event 
server.on('close', () => { 
   console.log("Server closed successfully"); 
}) 
  
// Start listening on a specific port and address 
server.listen(PORT, HOST, function() { 
  console.log("I'm listening at %s, on port %s", HOST, PORT); 
}); 
  
// Creating and initializing client 
var client = tls.connect(PORT, HOST, options, function() { 
    
  // Getting the bound address  
  // by using address method 
  const value = client.address(); 
  client.write("Bound address:" + value) 
  
  client.end(); 
});

使用以下命令運行index.js文件：

node index.js

輸出：

I'm listening at 127.0.0.1, on port 1337

Received:Bound address:[object Object]
Server closed successfully

參考： https://nodejs.org/dist/latest-v12.x/docs/api/tls.html#tls_server_close_callback

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注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 Node.js server.close() Method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。