React / TypeScript / Redux / Thunk reducer被触发，但状态未在Redux存储中更新

如何解决React / TypeScript / Redux / Thunk reducer被触发，但状态未在Redux存储中更新

我正在尝试使用API​​中的流派列表填充Redux存储状态，我可以获取要分派给reducer的操作，但是reducer似乎没有更新状态，因为我的console.log位于src / components / MovieForm.tsx返回默认状态“ null”，而不是流派数组，我不知道为什么，我试图查看状态是否在src / components / MovieForm.tsx中的setInterval中更新。记录状态，也许问题是我如何访问状态？这些是文件：

src / actions / movieActions.ts：

import { ActionCreator,Dispatch } from 'redux';
import { ThunkAction } from 'redux-thunk';
import { IMovieState } from '../reducers/movieReducer';
import axios from 'axios';

export enum MovieActionTypes {
    ANY = 'ANY',GENRE = 'GENRE',}

export interface IMovieGenreAction {
    type: MovieActionTypes.GENRE;
    genres: any;
}

export type MovieActions = IMovieGenreAction;

/*<Promise<Return Type>,State Interface,Type of Param,Type of Action> */
export const movieAction: ActionCreator<ThunkAction<Promise<any>,IMovieState,void,IMovieGenreAction>> = () => {
  return async (dispatch: Dispatch) => {
    try {
      console.log('movieActions called')
      let res = await axios.get(`https://api.themoviedb.org/3/genre/movie/list?api_key=${process.env.REACT_APP_MOVIE_API_KEY}&language=en-US`)
      console.log(res.data.genres)
      dispatch({
        genres: res.data.genres,type: MovieActionTypes.GENRE
      })
    } catch (err) {
      console.log(err);
    }
  } 
};

src / reducers / movieReducer.ts：

import { Reducer } from 'redux';
import { MovieActionTypes,MovieActions } from '../actions/movieActions';

export interface IMovieState {
    //property: any;
    genres: any;
}

const initialMovieState: IMovieState = {
    //property: null,genres: null,};

export const movieReducer: Reducer<IMovieState,MovieActions> = (
    state = initialMovieState,action
    ) => {
      switch (action.type) {
        case MovieActionTypes.GENRE: {
          console.log('MovieActionTypes.GENRE called')
          return {
            genres: action.genres,};
        }
        default:
          console.log('Default action called')
          return state;
      }
  };

src / store / store.ts：

import { applyMiddleware,combineReducers,createStore,Store } from 'redux';
import thunk from 'redux-thunk';
import { IMovieState,movieReducer } from '../reducers/movieReducer';

// Create an interface for the application state
export interface IAppState {
  movieState: IMovieState
}

// Create the root reducer
const rootReducer = combineReducers<IAppState>({
  movieState: movieReducer
});

// Create a configure store function of type `IAppState`
export default function configureStore(): Store<IAppState,any> {
  const store = createStore(rootReducer,undefined,applyMiddleware(thunk));
  return store;
}

src / components / MovieForm.tsx（应该分派动作的文件）：

import React,{ useState } from 'react';
import { makeStyles } from '@material-ui/core/styles';
import Paper from '@material-ui/core/Paper';
import Box from '@material-ui/core/Box';
import Select from '@material-ui/core/Select';
import MenuItem from '@material-ui/core/MenuItem';
import { spacing } from '@material-ui/system';
import Card from '@material-ui/core/Card';
import Button from '@material-ui/core/Button';
import Typography from '@material-ui/core/Typography';
import { CardHeader,TextField,CircularProgress } from '@material-ui/core';
import { useDispatch,useSelector } from 'react-redux';
import { movieAction } from '../actions/movieActions';
import { IAppState } from '../store/store';
import axios from 'axios';


const MovieForm = () => {

  const dispatch = useDispatch()
  const getGenres = () => {
    console.log('actions dispatched')
    dispatch(movieAction())
  }

  const genres = useSelector((state: IAppState) => state.movieState.genres);

  //const [genreChoice,setGenreChoice] = useState('')

  return (
    <>
    <h1>Movie Suggester</h1>
    <Paper elevation={3}>
      <Box p={10}>
        <Card>
          <div>Hello World. </div>
          <Select onChange={() => console.log(genres)}>
            <MenuItem>
              hello
            </MenuItem>
            <br />
            <br />
          </Select>
          <Button onClick={() => {
            getGenres()
            setTimeout(function(){
              console.log(genres)
            },5000)
          }}>genres list</Button>
          <Button onClick={() => console.log(axios.get(`https://api.themoviedb.org/3/discover/movie?api_key=${process.env.REACT_APP_MOVIE_API_KEY}&language=en-US&sort_by=popularity.desc&include_adult=false&include_video=false&with_genres=35&page=1`))}>Click me</Button>
        </Card>
      </Box>
    </Paper>
    </>
  )
}


export default MovieForm

这是src / index.tsx，以防问题出在我不知情的情况下：

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux'
import { BrowserRouter as Router } from 'react-router-dom';
import './index.css';
import CssBaseline from '@material-ui/core/CssBaseline';
import { ThemeProvider } from '@material-ui/core/styles';
import theme from './theme';
import App from './App';
import configureStore from './store/store';

const store = configureStore();

ReactDOM.render(
  <React.StrictMode>
    <Provider store={store}>
      <ThemeProvider theme={theme}>
      {/* CssBaseline kickstart an elegant,consistent,and simple baseline to build upon. */}
      <CssBaseline />
        <Router>
          <App />
        </Router>
      </ThemeProvider>
    </Provider>
  </React.StrictMode>,document.getElementById('root')
);

感谢您查看并尝试帮助我看看我无法做到的事情！