如何使我的计算机作为NodeJS中的公共服务器或任何其他方式？

Question

我想将我的计算机作为公共服务器。我尝试使用NodeJS下面的代码。而不是将主机名命名为127.0.0.1，而是使用我的真实IP地址。但它不起作用。是什么原因？是否可以以这种方式创建公共服务器？或者还有其他替代方法吗？

const http = require('http');

const hostname = '175.157.210.25';
const port = 3000;

const server = http.createServer((req, res) => {
    res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello World\n');
});

server.listen(port, hostname, () => {
    console.log(`Server2 running at http://${hostname}:${port}/`);
});

输出

C:\Users\Nuwanst\Documents\NodeJS\test2>node app.js
events.js:160
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRNOTAVAIL 175.157.210.25:3000
    at Object.exports._errnoException (util.js:1018:11)
    at exports._exceptionWithHostPort (util.js:1041:20)
    at Server._listen2 (net.js:1245:19)
    at listen (net.js:1294:10)
    at net.js:1404:9
    at _combinedTickCallback (internal/process/next_tick.js:83:11)
    at process._tickCallback (internal/process/next_tick.js:104:9)
    at Module.runMain (module.js:606:11)
    at run (bootstrap_node.js:389:7)
    at startup (bootstrap_node.js:149:9)

C:\Users\Nuwanst\Documents\NodeJS\test2>node app.js
events.js:160
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRNOTAVAIL 175.157.210.25:3000
    at Object.exports._errnoException (util.js:1018:11)
    at exports._exceptionWithHostPort (util.js:1041:20)
    at Server._listen2 (net.js:1245:19)
    at listen (net.js:1294:10)
    at net.js:1404:9
    at _combinedTickCallback (internal/process/next_tick.js:83:11)
    at process._tickCallback (internal/process/next_tick.js:104:9)
    at Module.runMain (module.js:606:11)
    at run (bootstrap_node.js:389:7)
    at startup (bootstrap_node.js:149:9)