How to build a webpack environment with vue and node

This time I will show you how to build a webpack environment with vue and node. What are the precautions for building a webpack environment with vue and node. The following is a practical case, let's take a look.

1. Environment setup

Go to the official websiteInstallationnode.js(http://www.runoob.com /nodejs/nodejs-install-setup.html )

Pay attention to the version of node. Only node that supports harmony mode will support es6, and no error will be reported when building the project name based on webpack. Recommend the latest version.

After downloading the installation package, just click Install.

Use npm to install webpack. The command line statement is npm install webpack -g. The interface for successful test installation is as follows:

The next step is to install vue-cli globally. It should be noted that it takes a long time to install vue-cli using npm, which may take more than two hours

The installation statement is: npminstall--globalvue-cli

Create a new project based on webpack template

The command line statement is vue init webpack my-project (where my-project is the file name, and the file name can only be lowercase letters). When creating a new template project, you need to go to the specified folder.

Enter vue init webpack my-project (project folder name) in cmd, press Enter, wait for a short while, the items under 'git' will appear one after another,

is created When working on a new project, if the following error is reported, it means that the node version is too low and does not support the harmonious mode (probably it means that it supports es6, f otherwise it does not support it. You need guidance from an expert for details) and should be replaced with a higher version of node. The error is as shown below:

In cmd 1). Enter: cd my-project (project name), press Enter, enter the specific project folder

Enter: cnpm install, press Enter, wait for a while

Return to the project folder and you will find that there is an additional node_modules folder in the project structure (the contents of this file are the previously installed dependencies)

webstorm installation, project introduction

Go to the official website to download the webstrom installation package and install it.

Keep going next. Depending on your computer system, choose to install a 64-bit system or a 32-bit system. Select js, css, html àjetbrainsà and then install

Select open under file in webstorm (select your project folder)

It looks very simple, but I'm afraid I'll make a mistake in a few days.

Whether the test environment is set up successfully

Method 1: Enter in cmd: cnpm rundev

(Obviously every time you modify the code, it is a very cumbersome process to go to cmd and enter commands every time, so bring up the npm menu in webstorm.

Right-click on the package.json file -> click show npm scripts to bring up the menu. To run in the future, just double-click dev.

in the npm menu. Note that the command line running project and the dev running project cannot be run together. When running one, you need to close the other, otherwise an error that the port is occupied will be reported.

)

Method 2: Enter in the browser: localhost:8080 (the default port is 8080)

If you enter the run command, an error will be reported. There are two situations, as shown in the figure below:

The first situation: port occupation problem

Then the solution is:

Option 1: Close the port during the process.

a. Open cmd and enter the command netstat –ano. All port numbers will appear,

b. Below the local address is the port number, and the PID is the process number of a program that occupies the port number (remember the process number)

c. Open the task manager (ctrl alt delete), click Process, then click View, select "Select Column", click OK and you will find the process program occupying the port

d. Find the remembered process number and close

Option 2: In the config/index.js file, modify the port number. Port: New port number.

Second type: The npm version is too low and needs to be upgraded:

solution:

a. Enter the command: npm install -g npm

b. Copy the files under C:Users{your Windows username}AppDataRoamingnpmnode_modulesnpm to node_modulesnpm in your NodeJS installation directory, overwriting all the original files

(Or use the method of comparing benzene and go through the previous steps again)

2. Changes based on personal needs

1. vue.js changes the default port number 8080 to the specified port:

Executing npm run dev actually calls package.json

in the root directory. After opening package.json, you can find this piece of code

"scripts":{
"dev":"nodebuild/dev-server.js",
"build":"nodebuild/build.js",
"lint":"eslint--ext.js,.vuesrc"
}

From this we can see that we should check the dev-server.js file in the build directory

can be found in the dev-server.js file varuri='http://localhost:' port

The port here is what we are looking for. At the beginning of dev-server.js we can find

varpath=require('path')

And where does path come from?

There is a config folder in the root directory. You can tell by the name that it is related to configuration. Open index.js

dev:{
env:require('./dev.env'),
port:8080,
autoOpenBrowser:true,
assetsSubDirectory:'static',
assetsPublicPath:'/',
proxyTable:{},
cssSourceMap:false
}

in the config directory. Not only can the port be changed here, but other configuration information can also be changed as needed.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

How to use timer to implement countdown function in js

How to invalidate the tag selected="selected" attribute deal with

The above is the detailed content of How to build a webpack environment with vue and node. For more information, please follow other related articles on the PHP Chinese website!