在开发场景中，我们可能更加喜欢使用jsonp，这里从基本的json数据列举一个示例，让学习react的小伙伴知道如何做数据交互。

import React from 'react'
import { useParams, Link } from "react-router-dom";
import data from "../data.json";
function Payment() {  
    const { productId } = useParams();
    const filteredData = data.filter((product) => product.id === productId)[0];
    return (
        <div  className='Payment'>
         <img src={filteredData.image}></img>
         <h1>{filteredData.price}</h1>
         <h1>{filteredData.name}</h1>          
        </div>
    )
}
export default Payment
import React from 'react'
import data from "./data.json";
import {
    
    Link
  } from "react-router-dom";
import { SearchContext } from './SearchContext';
function FreeToPlay() {
  const {filterProduct}=React.useContext(SearchContext);
    return (
        <>
          <div className='All' >
            {data[0].freetoplay.filter(filterProduct).map((product) => {
              return (
                <div className='f2p' key={product.id}>               
                    <img src={product.image}></img>
                    <h2>{product.name}</h2>
                    <h5>{product.price}</h5>
                  <Link
            to={`/payment/${product.id}`}
            className='link'
           >
            Buy Now
           </Link>
        </div>
              );
            })}
          </div>
        </>
      );
}
export default FreeToPlay
json
[
  {
    "freetoplay": [{
        "id": "0",
        "image": "src=fsdf",
        "price": "60$",
        "name": "CS Go"
      },
      {
        "id": "1",
        "image": "src=fsdf",
        "price": "6$",
        "name": "Fifa"
      }
    ],
 
    "action": [{
        "id": "2",
        "image": "src=fsdf",
        "price": "60$",
        "name": "doom"
      },
      {
        "id": "3",
        "image": "src=fsdf",
        "price": "66$",
        "name": "cyberpunk"
      }
    ],
    
  }
]
import React, { useState, useContext } from 'react';
export const SearchContext =React.createContext(null)
export  default function SearchProvider({children}) {
const [searchValue, setSearchValue] = React.useState("");
function filterProduct(product) {
     return product.name.toLowerCase().includes(searchValue.toLowerCase());
     }
      return( 
       <SearchContext.Provider value ={{filterProduct,   searchValue, setSearchValue}}>
             {children} 
        </SearchContext.Provider> 
             
             ); }
function Routes() {
    return (
       
        <div>     
          <Router>                 
            <SideBar /> 
          <Switch>   
           <Route  path="/payment/:productId">
             <Payment/>
           </Route>             
           <Route path="/freetoplay">  
            <FreeToPlay  />
           </Route>  
            <Route path="/action">  
              <Action  />
            </Route>           
            </Switch>  
          </Router>
       </div>
    )
}
export default Routes