以我自己的博客为例, 之前只有渲染 5 个路由组件, loadtest 的 rps, 有 50 左右, 但是后来把后台的 12 个路由组件也加到 SSR 后, rps 直接降到了个位数…
所以出现了现在的第三种方案
第三种方案
思路: 将 Cookies 作为参数注入到组件的asyncData方法, 然后用传参数的方法把 cookies 传给 api, 不得不说这种方法很麻烦, 但是这是个人能想到的比较好的方法
步骤1:
还是在 server.js 里, 把 cookies 注入到 context 中
const context = {
title: 'M.M.F 小屋',
url: req.url,
cookies: req.cookies,
}
renderer.renderToString(context, (err, html) => {
if (err) {
return handleError(err)
}
res.end(html)
})步骤2:
在entry-server.js里, 将cookies作为参数传给 asyncData 方法
Promise.all(matchedComponents.map(({asyncData}) => asyncData && asyncData({
store,
route: router.currentRoute,
cookies: context.cookies,
isServer: true,
isClient: false
}))).then(() => {
context.state = store.state
context.isProd = process.env.NODE_ENV === 'production'
resolve(app)
}).catch(reject)步骤3:
在组件里, 把 cookies 做为参数给 Vuex 的 actions
export default {
name: 'frontend-index',
async asyncData({store, route, cookies}, config = { page: 1}) {
config.cookies = cookies
await store.dispatch('frontend/article/getArticleList', config)
}
// .....
}步骤4:
在 Vuex 里将 cookies 做为参数给 api
import api from '~api'const state = () => ({
lists: {
data: [],
hasNext: 0,
page: 1,
path: ''
},
})
const actions = {
async ['getArticleList']({commit, state}, config) {
// vuex 作为临时缓存
if (state.lists.data.length > 0 && config.path === state.lists.path && config.page === 1) {
return
}
let cookies
if (config.cookies) {
cookies = config.cookies
delete config.cookies
}
const { data: { data, code} } = await api.get('frontend/article/list', {...config, cache: true}, cookies)
if (data && code === 200) {
commit('receiveArticleList', {
...config,
...data,
})
}
},
}
const mutations = {
['receiveArticleList'](state, {list, hasNext, hasPrev, page, path}) {
if (page === 1) {
list = [].concat(list)
} else {
list = state.lists.data.concat(list)
}
state.lists = {
data: list, hasNext, hasPrev, page, path
}
},
}
const getters = {
}
export default {
