我在“产品/添加”上有一个表格,并将产品添加到数据库中,提交请求后,我重定向到显示所有产品的页面。但是,此页面不显示有关我添加的最后一项的信息。如何解决?重定向后如何显示页面以显示最新数据?
'localhost:3333 / products / add'
import React, {useState} from 'react';
import api from './api';
import { Redirect } from 'react-router'
const HandleProduct = () => {
const [name, setName] = useState('');
const [description, setDescription] = useState('');
const [redirect, setRedirect] = useState(false);
const updateName = (e) =>{
setName(e.target.value);
}
const updateDescription = (e) =>{
setDescription(e.target.value);
}
const addProduct = (e) =>{
e.preventDefault();
const product = {
name: name,
description: description
}
api.addProduct(product)
.then((req, res) =>{
console.log(res);
setRedirect(true);
})
}
if(redirect) {
return <Redirect to={'/products'} />
}
return (
<div>
<form onSubmit={addProduct}>
<input type="text" name="name" value={name} onChange={updateName}/>
<input type="text" name="description" value={description} onChange={updateDescription}/>
<button>Submit</button>
</form>
</div>
);
}
export default HandleProduct;
产品列表(本地主机:3333 / products):
import React, {useContext} from 'react';
import {ProductsContext} from './ProductsContext';
const ProductsList = () => {
const [data] = useContext(ProductsContext);
return (
<div>
{console.log(data)}
{data.products.map((product, index)=>(
<div key={index}>
<p>{product.name}</p>
<p><i>{product.description}</i></p>
</div>
))}
</div>
);
}
export default ProductsList;