如何在不同端口上运行Signle Node.js项目

Question

How can I run node.js project on 2 different ports simultaneously? eg domain.com:1010/ and domain.com:2020/

But the source of these 2 different ports should be the same project. Thanks.

Answer 1

If you have your http.Server class in a variable, like so:

var server = http.createServer(handler);

you cannot call .listen() multiple times; the subsequent calls have no effect.

But what you can do is register two http.Server classes with the same handler and have the .listen() to different ports, like:

var server1 = http.createServer(handler)
var server2 = http.createServer(handler)

server1.listen(3000);
server2.listen(5000);

Answer 2

The first idea that came to my head is passing port as argument. With that there should be no problem to use

$ node app.js 1010

in one terminal and

$ node app.js 2020

in another. You can get arguments passed to your program with an array

process.argv

for example process.argv[1] should give you port if you start your app as I did upper