Heroku cedar 堆栈上的 Node.js 端口问题
我正在 Node.js 中运行一个基本的 Express 应用程序并尝试部署到 Heroku。该应用程序在本地运行良好，我相信我对 Heroku 的设置进展顺利，直到启动服务器时出现以下错误：
2011-09-21T16:42:36+00:00 heroku[web.1]: State changed from created to starting
2011-09-21T16:42:39+00:00 app[web.1]: Express server listening on port 3000 in production mode
2011-09-21T16:42:40+00:00 heroku[web.1]: Error R11 (Bad bind) -> Process bound to port 3000, should be 12810 (see environment variable PORT)
2011-09-21T16:42:40+00:00 heroku[web.1]: Stopping process with SIGKILL
2011-09-21T16:42:40+00:00 heroku[web.1]: Process exited
这是目前我在 app.js 中的全部内容，
app.listen(3000);
我也按照 Heroku 入门中提到的方式运行了它。
$ heroku config:add NODE_ENV=production
Adding config vars:
NODE_ENV => production
我相信我只需要设置用于生产的端口？谢谢。
I'm running a basic Express app in Node.js and trying to deploy to Heroku. The app works fine locally and I believe my setup with Heroku has gone well up until starting the server where i get the following error:
2011-09-21T16:42:36+00:00 heroku[web.1]: State changed from created to starting
2011-09-21T16:42:39+00:00 app[web.1]: Express server listening on port 3000 in production mode
2011-09-21T16:42:40+00:00 heroku[web.1]: Error R11 (Bad bind) -> Process bound to port 3000, should be 12810 (see environment variable PORT)
2011-09-21T16:42:40+00:00 heroku[web.1]: Stopping process with SIGKILL
2011-09-21T16:42:40+00:00 heroku[web.1]: Process exited
this is currently all i have in my app.js
app.listen(3000);
I did also run this as mentioned on Heroku's getting started.
$ heroku config:add NODE_ENV=production
Adding config vars:
NODE_ENV => production
I believe I just need to set up the port for production? Thanks.
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您能显示调用
listen的整个代码部分吗？您应该检查进程环境变量 PORT，而不仅仅是将其硬编码为 3000。来自他们的 docs：Can you show the entire section of code where you call
listen? You should be checking for the process environment variable PORT, not just hardcoding it to 3000. From their docs: