Detailed explanation of vue's packaging process and common problems

With the development of front-end technology, more and more projects are developed using vue. After the project development is completed, we need to package the vue project so that it can be run in a real production environment. So, is vue packaging troublesome? This article will introduce you to the vue packaging process and the problems you may encounter.

1. Vue packaging process

1. Run command packaging

First, we need to enter the project directory on the command line and execute the following command:

npm run build

The function of this command is to package the vue project as a static resource, and the packaged files will be stored in the dist directory.

2. Wait for the packaging to be completed

The packaging process takes some time, and we need to wait for the packaging to be completed. Depending on the size and complexity of the project, the packaging time may be within a few minutes or tens of minutes. After the packaging is completed, the following information will appear:

File                          Size            Gzipped

  dist/js/chunk-vendors.0ab76822.js  1002.55 kb      322.62 kb
  dist/js/app.08cb9d99.js           104.53 kb       36.06 kb
  dist/css/app.eca5d5c5.css         0.86 kb         0.45 kb

This information indicates that the packaged file has been successfully generated, and We can see the space occupied by the packaged file and the space occupied by the compressed file.

3. Run in the production environment

After the packaging is completed, we need to upload the files in the dist directory to the server to facilitate running in the production environment. In the server, we need to run the packaged vue project as follows:

npm install -g serve
cd dist
serve -s

At this time, enter the IP address and port number of the server in the browser to access the packaged vue project.

2. Possible problems

1. The packaged dist directory is too large

During the vue packaging process, the dist directory may occupy a large space. If we want to upload the packaged files to the server, we need time and bandwidth support. In practical applications, we can reduce the size of the packaged files in the following ways:

• Delete unused dependencies
• Use cdn to introduce some libraries
• Reduce the size of the picture

2. Typos appear after packaging

During the packaging process, errors may occur. When an error occurs, we need to view the error message in order to solve the error. In error messages, there are sometimes typos or cumbersome explanations, which can make troubleshooting very difficult. In order to solve this problem, we can use a more friendly error message prompt tool, such as: friendly-errors-webpack-plugin.

3. Problems with page style after packaging

During the vue packaging process, page styles may sometimes be lost or misplaced. These problems are generally caused by errors in the packaged file paths. In order to solve this problem, we can add the baseUrl option in the vue.config.js file to specify the root path of the packaged static resources.

// vue.config.js
 
module.exports = {
  baseUrl: 'http://www.example.com'
}

The above is the vue packaging process and possible problems encountered. Through understanding this article, I believe you have mastered the basic steps of vue packaging and methods to solve problems, go and try it!

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