Nuxt中关于asyncData 数据的管理
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Nuxt中关于asyncData 数据的管理

in 前端 with 0 comment

Nuxt中关于asyncData 数据的管理

需求分析

因为nuxt我们要对其进行seo优化和处理,所以数据基本都要在服务器端渲染完成,也必然都需要塞入到asyncData中,我们针对逐个的axios请求进行处理

代码拆分为 Promise All

async asyncData({ params, store, app, query, error }) {
    let getLayout = store.dispatch('layout/getLayout', params.category),
        getJobList = store.dispatch('layout/getJobList', Object.assign(query, params));

    return new Promise((resolve, reject) => {
        return Promise.all([getLayout, getJobList])
            .then(() => {
                resolve();
            })
            .catch(err => {
                error({ statusCode: 500, message: 'Page exception :' + err });
            });
    });
},

以上只是一部分,store执行的方法都将进入到vuex中进行管理,我们对其数据进行动态调用

computed: {
    ...mapState('layout', ['banner', 'content', 'page', 'active', 'pageSize', 'metas', 'menus', 'list'])
}

layout 对应的为store目录,因为我们需要安装功能模块将store进行划分

如图: 图片描述...

export const state = () => ({
    locales: ['en', 'zh'],
    locale: 'en',
    menus: [],
    metas: {},
    description: '',

    active: '',
    banner: [],
    content: "",
    list: [],
    page: 0,
    pageSize: 10
})
export const mutations = {
    setMetas(state, metas) {
        state.metas = metas
    },
    setMenus(state, menus) {
        state.menus = menus
    },
    setActive(state, active) {
        state.active = active
    },
    setField(state, obj) {
        const {field, value} = obj
        state[field] = value
    }
}

export const actions = {
    getLayout({commit}, category) {
        return new Promise((resolve, reject) => {
            this.$request.getFeature({category: category}).then(res => {
                let { metas, content, menus, active } = res.data.data
                console.log(metas)

                commit('setMetas', metas)
                commit('setMenus', menus)
                commit('setActive', active)

                // 首部banner 分离
                let banner = content[0]
                content = content.slice(1)

                commit('setField', {field: 'banner', value: banner})
                commit('setField', {field: 'content', value: content})
                resolve()
            }).catch(err => {
                
            }).finally(() => {
            })
            return Promise.resolve()
        })
    },

    getJobList({commit}, filter) {
        return new Promise((resolve, reject) => {
            this.$request.getJobList(filter).then(res => {
                let list = res.data.data.list
                let { page, pageSize } = res.data.meta
                
                commit('setField', {field: 'list', value: list})
                commit('setField', {field: 'page', value: page})
                commit('setField', {field: 'pageSize', value: pageSize})

                resolve()
            }).catch(err => {
                reject(err)
            })
        })
    }
}

配置 head

head() {
    return {
        title: this.metas.title,
        meta: [
            { hid: 'description', name: 'description', content: this.metas.description },
            { hid: 'keyword', name: 'keyword', content: this.metas.keyword }
        ]
    };
}![图片描述...](https://cdn.surest.cn/FucM3nAy8Wggx43cD7CrTrJGfmI9)
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