module.js:312:12)
下面是我的代码:var server = http.createServer(app).listen(4000, function() {
console.log('Express HTTP server listening on port ' + app.get('port
在java中运行我的客户端后,我得到了这个错误。Oct 01, 2017 8:08:07 AM from_sever.From_sever mainjava.net.BindException: Address already in use: JVM_Bind at java.net.DualStackPlainSocketImpl.socketBind(DualStackPlainSocketImpl.java:106)