如何在App启动时使用redux启动fetch？

// actions.js
export const fetchData = () => {
  return async (dispatch) => {
    try {
      // 发起fetch请求，获取数据
      const response = await fetch('https://example.com/api/data');
      const data = await response.json();
      
      // 将获取到的数据派发给Redux的reducer
      dispatch({ type: 'FETCH_SUCCESS', payload: data });
    } catch (error) {
      dispatch({ type: 'FETCH_ERROR', payload: error.message });
    }
  };
};

// reducer.js
const initialState = {
  data: null,
  error: null,
};

const reducer = (state = initialState, action) => {
  switch (action.type) {
    case 'FETCH_SUCCESS':
      return { ...state, data: action.payload };
    case 'FETCH_ERROR':
      return { ...state, error: action.payload };
    default:
      return state;
  }
};

export default reducer;

// index.js
import React from 'react';
import { render } from 'react-dom';
import { Provider } from 'react-redux';
import { createStore, applyMiddleware } from 'redux';
import thunk from 'redux-thunk';
import reducer from './reducer';
import App from './App';

const store = createStore(reducer, applyMiddleware(thunk));

render(
  <Provider store={store}>
    <App />
  </Provider>,
  document.getElementById('root')
);

// App.js
import React, { useEffect } from 'react';
import { useDispatch, useSelector } from 'react-redux';
import { fetchData } from './actions';

const App = () => {
  const dispatch = useDispatch();
  const data = useSelector((state) => state.data);

  useEffect(() => {
    dispatch(fetchData());
  }, [dispatch]);

  return (
    <div>
      {data ? (
        <ul>
          {data.map((item) => (
            <li key={item.id}>{item.name}</li>
          ))}
        </ul>
      ) : (
        'Loading...'
      )}
    </div>
  );
};

export default App;