1 npm

npm install idb

2 代码

<template>
  <div>
    <p>Data: {{ data }}</p>
    <button @click="fetchData">Fetch Data</button>
  </div>
</template>

<script>
import { openDB } from 'idb';

export default {
  data() {
    return {
      data: null
    }
  },
  methods: {
    async fetchData() {
      // 发送第三方请求 url 填写
      const response = await fetch(url);
      const data = await response.json();

      // 将数据存储到 IndexedDB 中
      let db = await openDB('my-store', 1, {

        upgrade(db) {
        
          db.createObjectStore('my-store');
        }
      });
      db = await openDB('my-store', 1);
     )
      const tx = db.transaction('my-store', 'readwrite');
      const store = tx.objectStore('my-store');
      console.log('store', store)
      await store.put(data, 'my-data');
      await tx.done;

      // 从 IndexedDB 中获取数据
      const tx2 = db.transaction('my-store');
      const data2 = await tx2.objectStore('my-store').get('my-data');
      await tx2.done;

      // 更新数据
      this.data = data2;
      console.log(data2)
    }
  }
}
</script>