问React Redux组件未在状态更改时重新呈现

EN

class shopProduct extends Component {

    constructor(props) {
        super(props);
        this.state = {...localStateItems }
    }

    render() {
        if(this.props.products != undefined) {
          console.log('not undefined: ', this.props.products);
          // NOTHING IS SHOWING
        }
        console.log('shopProducts Render: ', this.props);
        // NOTHING IS SHOWING

        return (
            ...Some new products
        )
    }
}

const mapStateToProps = (state, ownProps) => ({
    cart: state.cart,
    products: state.products
});

shopProduct.propTypes = {
    productSearch: PropTypes.func.isRequired,
    products: PropTypes.object
};

export default connect(mapStateToProps, { productSearch, products })(shopProduct);