vue3刷新页面pinia数据丢失
时间: 2023-08-29 18:10:54 浏览: 256
解决vue刷新页面以后丢失store的数据问题
解决方案如下:当在Vue项目中使用pinia进行状态管理时,刷新页面会导致pinia中的数据丢失。一个解决方法是在刷新页面之前先将数据存储到localStorage中,然后在初始化pinia时,将存储在localStorage中的数据读取出来重新赋值给pinia的状态。具体的实现步骤如下:
1. 在pinia的mutations中,在修改状态的同时,使用`window.localStorage.setItem`方法将数据存储到localStorage中。例如:
```javascript
orderList(s, d) {
s.orderList = d;
window.localStorage.setItem("orderList", JSON.stringify(s.orderList));
},
```
2. 在初始化pinia时,可以在store的构造函数中读取localStorage中的数据,并重新赋值给pinia的状态。例如:
```javascript
import { createStore } from 'pinia';
export const useStore = createStore({
state: () => ({
orderList: JSON.parse(window.localStorage.getItem("orderList")) || [],
menuList: JSON.parse(window.localStorage.getItem("menuList")) || [],
}),
...
});
```
这样,在刷新页面之后,pinia的状态就可以从localStorage中恢复,并且数据不会丢失了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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