Vue：请求进行时显示加载器

Question

我想实现如下流程：

当正在进行 http 请求时，显示加载器。请求完成后隐藏加载器。

Answer 1

I assume that you want to show a loader when a http request is on progress.

<template>

    <div>

        <div v-if="loading">
            <!-- here put a spinner or whatever you want to indicate that a request is in progress -->
        </div>

        <div v-else>
            <!-- request finished -->
        </div>

    </div>

</template>

<script>
    import axios from 'axios'

    export default {
        data: () => {
          loading: false
        },

        methods: {
          makeRequest () {
            this.loading = true //the loading begin
            axios.get('/example')
            .then(response => { ... }) // code to run on success
            .catch(error => { ... }) // code to run on error
            .finally(() => (this.loading = false)) // set loading to false when request finish
          }
        }
    }
</script>

注意我用的是axios in the example, but the logic works with other htpp libraries or fetch

Answer 2

仅限 Nuxt.js 用户

roli 编写的示例很棒，但理想情况下，您不想在每次提出请求时都重复自己。所以我建议你这样做感谢：

添加['@nuxtjs/axios'].....

添加或修改plugins/axios.js

export default ({ app, $axios ,store }) => {      
  $axios.interceptors.request.use((config) => {
    store.commit("SET_DATA", { data:true, id: "loading" });
    return config;
  }, (error) => {
    return Promise.reject(error);
  });

  $axios.interceptors.response.use((response) => {
    store.commit("SET_DATA", { data:false, id: "loading" });
    return response;
  }, (error) => {
    return Promise.reject(error);
  });
}

商店在

export default {
  state: () => ({
    loading: false
  }),
  mutations: {
    SET_DATA(state, { id, data }) {
      state[id] = data
    }
  },
  actions: {

  }
}

Vue：请求进行时显示加载器

Vue: Display Loader when request is in progress

javascript

vue.js

vue-router

vuex