NodeJS：对象原型事件处理

Question

我有以下代码....

Lib.js

var net     =   require('net');
var events  =   require('events');
var util    =   require('util');

app = module.exports =  function(){
    var name = "TestAPP";
    events.EventEmitter.call( this );
};
util.inherits(app,events.EventEmitter);


app.prototype.createServer = function(){
    net.createServer({allowHalfOpen:false}, this.listening).listen(8000);
    // I've also tried
    // net.createServer({allowHalfOpen:false}, app.prototype.listening).listen(8000);
}

app.prototype.listening = function(){
    util.log(this.name + ' > Server is listening.');
}

Test.js

var app = require('./lib');
var a = new app();
a.createServer();

但是当我运行它时，服务器正在监听但监听事件没有触发。

我不知道我是否遗漏了一些琐碎的事情。任何帮助将不胜感激。

谢谢。

Answer 1

您将“连接”侦听器误认为“正在侦听”侦听器。检查this链接。

app = module.exports =  function(){
    this.name = "TestAPP";
    events.EventEmitter.call( this );
};
util.inherits(app,events.EventEmitter);

app.prototype.createServer = function(){
    net.createServer({allowHalfOpen:false}).listen(8000, this.listening(this));
}

app.prototype.listening = function(a){
    util.log(a.name + ' > Server is listening.');
}