Vue 3에서 Suspense 구성 요소를 사용하여 데이터 로딩 전환 효과를 얻는 방법

<template>
  <Suspense>
    <template #default>
      <AsyncComponent/>
    </template>
    <template #fallback>
      <loading-component/>
    </template>
  </Suspense>
</template>

const AsyncComponent = defineAsyncComponent(
  () => import('./AsyncComponent.vue'),
  {
    loadingComponent: loadingComponent,
    errorComponent: errorComponent,
    delay: 200, // 延迟200毫秒显示loading状态
    timeout: 3000 // 3秒超时时间
  }
);

<template>
  <div class="loading">数据加载中...</div>
</template>

<script>
export default {
  name: 'loadingComponent'
}
</script>

<style scoped>
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100px;
  background-color: #f5f5f5;
}
</style>

<template>
  <div>
    <h1>{{title}}</h1>
    <p>{{content}}</p>
  </div>
</template>

<script>
export default {
  name: 'AsyncComponent',
  data() {
    return {
      title: '',
      content: ''
    }
  },
  created() {
    fetch('/api/data')
      .then(response => response.json())
      .then(data => {
        this.title = data.title;
        this.content = data.content;
      })
      .catch(error => {
        console.error(error);
      });
  }
}
</script>

<template>
  <Suspense>
    <template #default>
      <AsyncComponent/>
    </template>
    <template #fallback>
      <loading-component/>
    </template>
  </Suspense>
</template>

<script>
import { defineAsyncComponent, Suspense } from 'vue';
import AsyncComponent from './AsyncComponent.vue';
import LoadingComponent from './LoadingComponent.vue';

export default {
  name: 'App',
  components: {
    AsyncComponent,
    LoadingComponent
  }
}
</script>