node.js nodemon 无法正常工作

nodemon not working properly

提问by bruceparker

I am running my nodejs app by npm start

我正在运行我的 nodejs 应用程序 npm start

I just installed nodemon by sudo npm install -g nodemonso that i can get my server restarted when i save changes to files.

我刚刚安装了 nodemon， sudo npm install -g nodemon以便在保存对文件的更改时可以重新启动服务器。

But when i try to start the server, something like this

但是当我尝试启动服务器时，像这样

nodemon ./app.js localhost 3000 or nodemon start localhost 3000

nodemon ./app.js localhost 3000 or nodemon start localhost 3000

I get this as output

我得到这个作为输出

LM-SJC-00871929:webapp gdeep$ nodemon ./app.js localhost 3000
28 May 23:34:30 - [nodemon] v1.1.1
28 May 23:34:30 - [nodemon] to restart at any time, enter `rs`
28 May 23:34:30 - [nodemon] watching: *.*
28 May 23:34:30 - [nodemon] starting `node ./app.js localhost 3000`

but when i go to my webpage, i get

但是当我去我的网页时，我得到

Oops! Google Chrome could not connect to localhost:3000. What am i doing wrong?

Oops! Google Chrome could not connect to localhost:3000. 我究竟做错了什么？

App.js here http://collabedit.com/t35dy

App.js 在这里http://collabedit.com/t35dy

回答by SomeKittens

You're running express 4, which has the app.listencall in a different file than app.js. The command you're looking for is nodemon bin/www(localhostand 3000are not needed in this scenario).

您正在运行 express 4，它app.listen在与app.js. 你要找的命令是nodemon bin/www（localhost而且3000在这种情况下并不需要）。

In fact, you can even run nodemonwith no args, and it'll read what command needs to be run from scripts.startin package.json(which express generates automatically).

事实上，你甚至可以nodemon在没有参数的情况下运行，它会读取需要从scripts.startin运行的命令package.json（express 自动生成）。

回答by Garth

In my case, I had to install nodemon globally. Use this command to do so..

就我而言，我必须全局安装 nodemon 。使用此命令执行此操作..

npm install -g nodemon

If you're using Linuxyou may need to prefix the command with the sudo keyword for administration access..

如果您使用的是Linux，您可能需要在命令前加上 sudo 关键字以进行管理访问。

sudo npm install -g nodemon

回答by BHUVNESH KUMAR

Add following code in your code

在您的代码中添加以下代码

1. app.js

   app.listen(3000, function(){
       console.log("info",'Server is running at port : ' + 3000);
   });
   

2. package.json

   nodemon app.js 
   

1. app.js

   app.listen(3000, function(){
       console.log("info",'Server is running at port : ' + 3000);
   });
   

2. package.json

   nodemon app.js 
   

Then run npm startfrom the command line.

然后从命令行运行npm start。

回答by Dinesh

For Express.js 4,
use nodemon
or
nodemon bin/www

对于 Express.js 4，
使用 nodemon
或
nodemon bin/www

回答by user3607134

try running nodemon ./app.js 3000 or nodemon start 3000

尝试跑步 nodemon ./app.js 3000 or nodemon start 3000

回答by Skoua

Here's what I did to make nodemon update correctly:

这是我为使 nodemon 正确更新所做的工作：

nodemon index.js -L

The -Lflag stands for legacyWatch, here's an explanation from the official doc:

该-L标志代表legacyWatch，这是官方文档的解释：

In some networked environments (such as a container running nodemon reading across a mounted drive), you will need to use the legacyWatch: true which enables Chokidar's polling.

在某些网络环境中（例如运行 nodemon 读取已安装驱动器的容器），您将需要使用 legacyWatch: true 来启用 Chokidar 的轮询。

https://www.npmjs.com/package/nodemon#application-isnt-restarting

https://www.npmjs.com/package/nodemon#application-isnt-restarting

回答by Yue Yin

If you are using express4, the easiest way is to navigate to package.json and change "scripts": { "start": "node ./bin/www" }

如果您使用 express4，最简单的方法是导航到 package.json 并更改 "scripts": { "start": "node ./bin/www" }

to "scripts": { "start": "nodemon ./bin/www" }

到 "scripts": { "start": "nodemon ./bin/www" }

回答by Sheshadri H

try

尝试

npm install --save-dev nodemon

and then in package.json filekeep like this

然后 package.json file像这样保持

"scripts": {
    "start": "nodemon",
    "test": "echo \"Error: no test specified\" && exit 1"
  },

instead of npx nodemon, which takes more time

而不是 npx nodemon，这需要更多时间

回答by Hymanal

For Express 4; Just run

对于快递 4；赶紧跑

nodemon

节点监视器

command (with out any args) on the directory; this works for me.

目录上的命令（不带任何参数）；这对我有用。

回答by czerasz

You might also run into the issue of having an empty .nodemonignore.

您可能还会遇到空的.nodemonignore.