vue.config.js配置跨域

  devServer: {
    port: 3000,
    proxy: {
      '/api': {
        target: process.env.VUE_APP_SERVER_URL,
        changeOrigin: true,
        pathRewrite: {
          '^/api': ''
        }
      },
      '/userfiles': {
        target: process.env.VUE_APP_SERVER_URL,
        changeOrigin: true,
        pathRewrite: {
          '^/userfiles': '/userfiles'
        }
      }
    }
  },