Vue 4.0 and above modify the default 8080 port number


The detailed process is shown in:Vue 4.0 and above modify the default 8080 port number
Modifying the default port number in vue4.0 is greatly different from previous versions. The modification method is as follows:

  1. Find the corresponding file to modify the port
    The directory is:
    Project folder / node_ modules/@vue/cli-service/lib/options.js
    • 2. Open the options.js file, drag the bottom, find the following code and cancel the comment
devServer: {
    open: process.platform === 'darwin',
    host: '',
    port: 6080,
    https: false,
    hotOnly: false,
    proxy: null, // string | Object
    before: app => {}

Port: 6080 in the above circle is my modified port number. If it is not modified, it should be 8080 by default
• 3. Cancel the comments in the above box (the parameters in the above code are commented out by default) to modify the port number of the project
Note: do not add notes after modification.

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