我已經從你的問題中獲取了代碼，并且可以證明它工作得很好（見下面的片段）。要么您搞砸了導入，要么searchProviderByName.searchProviderByName未定義，但 Header 仍然不會收到空道具。
無法指出您的代碼有什么問題，因為提供的代碼可以正常工作，也許您可以提供一個片段或沙箱來演示您遇到的問題。
const { Provider, connect } = ReactRedux;
const {
createStore,
applyMiddleware,
compose,
bindActionCreators,
} = Redux;
const initialState = {};
//action types
const SOME_ACTION = 'SOME_ACTION';
//action creators
const someAction = (...args) => ({
type: SOME_ACTION,
payload: args,
});
const reducer = (x) => x;
//creating store with redux dev tools
const composeEnhancers =
window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;
const store = createStore(
reducer,
initialState,
composeEnhancers(
applyMiddleware(() => (next) => (action) => {
console.log('action:', action);
return next(action);
})
)
);
function Header(props) {
return (
<button onClick={() => props.searchByName()}>
click me
</button>
);
}
class HeaderContainer extends React.Component {
render() {
return (
<Header searchByName={this.props.searchByName} />
);
}
}
const mapDispatchToProps = (dispatch) => {
return bindActionCreators(
{
searchByName: someAction,
},
dispatch
);
};
const App = connect(
null,
mapDispatchToProps
)(HeaderContainer);
ReactDOM.render(
<Provider store={store}>
<App />
</Provider>,
document.getElementById('root')
);
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.4/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.4/umd/react-dom.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/4.0.5/redux.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-redux/7.2.0/react-redux.min.js"></script>
<div id="root"></div>
