node.js - node端口占用要怎么处理?

Question

node端口占用要怎么处理

Answer 1

Just change the listening port in www.

Answer 2

If you can change the port, find the config.js in your project. Do you see that port? Just change the latter value.
If you cannot change the port. .

The picture is under windows, so follow the windows method:

netstat –ano|findstr "8080"

Find the PID of the corresponding process, then:

taskkill -PID <进程号> -F

Or go into the task manager, find the process corresponding to the PID, and end it.

Answer 3

In this case, nine times out of ten, your program has already been started or another node file is listening to this port. Just apply that program ctrl+c away.

Answer 4

Kill the process, or start changing the port

Answer 5

https://segmentfault.com/a/11...

The implementation port in Node is occupied, use another port

In order to solve the problem that the port is occupied when the ssr tool starts multiple services. Share code snippets from your research.

// 检测port是否被占用
function probe(port, callback) {

    var server = net.createServer().listen(port)

    var calledOnce = false

    var timeoutRef = setTimeout(function () {
        calledOnce = true
        callback(false,port)
    }, 2000)

    timeoutRef.unref()

    var connected = false

    server.on('listening', function() {
        clearTimeout(timeoutRef)

        if (server)
            server.close()

        if (!calledOnce) {
            calledOnce = true
            callback(true,port)
        }
    })

    server.on('error', function(err) {
        clearTimeout(timeoutRef)

        var result = true
        if (err.code === 'EADDRINUSE')
            result = false

        if (!calledOnce) {
            calledOnce = true
            callback(result,port)
        }
    })
}

Usage example:

function server(_port){
    var pt = _port || __port;
    probe(pt,function(bl,_pt){
        // 端口被占用 bl 返回false
        // _pt：传入的端口号
        if(bl === true){
            // ssr(_pt)
            server = http.createServer(connListener);
            server = server.listen(parseInt(_pt, 10));
            console.log("\n  Static file server running at" + "\n\n=> http://localhost:" + _pt + '\n');
        }else{
            server(_pt+1)
        }
    })
}

Answer 6

Step 1: Run lsof -i:端口号. With this command you can see the process ID occupying the port number.
Step 2: kill 进程ID That’s it.

X, you are windows. . . When I didn't say it.