Nuxt 添加全局插件内存泄漏问题

Question

我是Nuxt 2.13通用模式，内存占用和泄漏严重！！

所以当我在寻找相关问题时，我在 Nuxt Docs Plugins - NuxtJS 中找到了这个 Plugins - NuxtJS :

Don't use Vue.use(), Vue.component(), and globally, don't plug anything in Vue inside this function, dedicated to Nuxt injection. It will cause a memory leak on the server-side.

谁能告诉我这是什么意思？？

我目前正在使用许多外部插件和一些由 vue.component() 和 vue.use() 全局添加的混合插件。可能是他们的问题？？（我还有一个 utils.js mixin 文件，其中包含许多方法和已全局添加到 nuxt.config 的计算数据）

我的一些插件和混合插件全局添加到 nuxt.config.js 文件：

// Vuetify 2
import Vue from 'vue'
import Vuetify from 'vuetify'
import 'vuetify/dist/vuetify.min.css'
import '@mdi/font/css/materialdesignicons.css' // Ensure you are using css-loader version "^2.1.1"
import 'font-awesome/css/font-awesome.min.css'
import '@fortawesome/fontawesome-free/css/all.css'
import colors from "vuetify/es5/util/colors";
import '~/assets/vuetify.scss'
// let siteDirection = process.env.SITE_DIRECTION

Vue.use(Vuetify)

export default ctx => {
  const vuetify = new Vuetify({
    rtl: process.env.SITE_DIRECTION === 'rtl' ,
    customVariables: ['~/assets/variables.scss','~/assets/colors.scss'],
    icons: {
      iconfont: 'mdi', // default - only for display purposes
    },
    theme: {
      dark: false, // From 2.0 You have to select the theme dark or light here
      themes: {
        dark: {
          primary: colors.deepPurple.lighten3,
          accent: colors.deepPurple.accent3,
          secondary: colors.amber.darken3,
          info: colors.teal.lighten1,
          warning: colors.amber.base,
          error: colors.deepOrange.accent4,
          success: colors.green.accent4
        }
      }
    }
  })

  ctx.app.vuetify = vuetify
  ctx.$vuetify = vuetify.framework
}

// Vue-Glide Package
import Vue from 'vue'
import { Glide, GlideSlide } from 'vue-glide-js'

Vue.component("vue-glide", Glide)
Vue.component("vue-glide-slide", GlideSlide)

// Noty package
import Vue from "vue";
import Noty from "noty";

Vue.prototype.$noty = (type, text) => new Noty({
    layout:process.env.SITE_DIRECTION === 'rtl' ? 'bottomLeft' : 'bottomRight',
    type,
    text,
    timeout: 5000
});

// vue-product-zoomer package
import Vue from 'vue'
import ProductZoomer from 'vue-product-zoomer'
Vue.use(ProductZoomer)

我的 Mixins 也以默认方式添加：

import Vue from 'vue'

const FormattedPrice = {
    install(Vue){
      Vue.mixin({
        methods:{
          formattedPrice(price,options){
            if(price !== null && price !== undefined){
              if(typeof price === 'object'){
                let min = price.min ? Number(price.min).toLocaleString() : 0
                let max = price.min ? Number(price.max).toLocaleString() : 0
                return min + ' - ' + max + (options && options.noSign ? '' : this.currencySign)
              }else{
                // try {
                //   return price.toString().replace(/\B(?<!\.\d*)(?=(\d{3})+(?!\d))/g, ",") + this.currencySign
                //   // return price.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") + this.currencySign
                // } catch (error) {
                //   return Number(price).toLocaleString() + this.currencySign
                // }
                return Number(price).toLocaleString() + (options && options.noSign ? '' : this.currencySign)
              }
            }
            return '...' + (options && options.noSign ? '' : this.currencySign)
          }
        },
        computed:{
          currencySign(){
            return ' ' + this.shopInfo.currency.sign
          }
        }
      })
    }
  }
  
  Vue.use(FormattedPrice)

Answer 1

针对您的问题：

Don't use Vue.use(), Vue.component(), and globally, don't plug anything in Vue inside this function, dedicated to Nuxt injection. It will cause a memory leak on the server-side.

看到这个 PR，这就是那个警告的原因。

更明确的解释是，您应该不从内部调用Vue.use()或Vue.component()导出的插件函数。您应该将调用置于全局范围内，并将它们简单地应用于上下文。

我认为您在从导出函数内部调用 new Vuetify() 时会发生内存泄漏。他们完全有可能调用 Vue.use() 或 Vue.component() 作为该调用的副作用。

您应该将该调用置于全局范围内。如果这不起作用，那么您可能需要考虑创建一个最小可重现示例并在 Nuxt GitHub 存储库上打开一个问题。

// Vuetify 2
import Vue from 'vue'
import Vuetify from 'vuetify'
import 'vuetify/dist/vuetify.min.css'
import '@mdi/font/css/materialdesignicons.css' // Ensure you are using css-loader version "^2.1.1"
import 'font-awesome/css/font-awesome.min.css'
import '@fortawesome/fontawesome-free/css/all.css'
import colors from "vuetify/es5/util/colors";
import '~/assets/vuetify.scss'
// let siteDirection = process.env.SITE_DIRECTION

Vue.use(Vuetify)

const vuetify = new Vuetify({
    rtl: process.env.SITE_DIRECTION === 'rtl' ,
    customVariables: ['~/assets/variables.scss','~/assets/colors.scss'],
    icons: {
      iconfont: 'mdi', // default - only for display purposes
    },
    theme: {
      dark: false, // From 2.0 You have to select the theme dark or light here
      themes: {
        dark: {
          primary: colors.deepPurple.lighten3,
          accent: colors.deepPurple.accent3,
          secondary: colors.amber.darken3,
          info: colors.teal.lighten1,
          warning: colors.amber.base,
          error: colors.deepOrange.accent4,
          success: colors.green.accent4
        }
      }
    }
})

export default ctx => {
  

  ctx.app.vuetify = vuetify
  ctx.$vuetify = vuetify.framework
}

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