Detailed explanation of vite.config.js configuration cross-domain and environment configuration in vue

How to configure cross-domain, proxy domain name, the following is the proxy of vite

server: {
      port: 8516,
      host: true,
      open: true,
      proxy: {
        '/license-province': {
          target: 'http://xxx.xxx.x.xxx:xxxx',
          changeOrigin: true,//是否跨域
          rewrite: (p) => p.replace(/^\/license-province/, 'license-province')//重写路径
        }
      }
    },

Distinguish between development and production environments, and pre-release environments

在根目录创建 .env[mode]文件,在项目执行 npm run dev 的时候vite会自动去读取 .env.development 文件里面的配置,执行 npm run build 进行打包之后也会自动将 .env.production 的内容打包进去.
注意: 如果你想进入预发布模式的话需要在打包的时候进行mode配置: npm run build --mode staging
公共的: .env
开发环境: .env.development
生产环境: .env.production
预发布环境: .env.staging

There will be VITE_APP_ENV configuration in our .env.development and .env.production files :

In our vite.config.js file:

The above is the configuration of vite.config.js, which shows that the domain name of the corresponding environment is requested in different environments and the proxy is configured for cross-domain.

Proxy is commonly used in VUE to solve cross-domain problems

1. Set the code in vue.config.js:

module.exports = {
  dev: {
    // Paths
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',
    proxyTable: { // 配置跨域
    '/api':{
        target:`http://xxx.xxx.xxx`, //请求后台接口
        changeOrigin:true, // 允许跨域
        pathRewrite:{
            '^/api' : '' // 重写请求
        }
    }
  },
}

2. When creating an axioss instance, set baseUrl to '/api'

const http = axios.create({
  timeout: 1000 * 1000000,
  withCredentials: true,
  BASE_URL: '/api'
  headers: {
     'Content-Type': 'application/json; charset=utf-8'
   }
})