使用getDerivedStateFromProps将状态转换为道具

componentWillReceiveProps(nextProps) {
    if (nextProps.dwelling) {
        this.state.dwelling = nextProps.dwelling;
    }
    if (!nextProps.saving && this.props.saving) {
        this.props.history.push('/users');
    }
}
}

注意:第二个if在成功保存后也非常有用。

static getDerivedStateFromProps(nextProps, prevState) {
    if (nextProps.dwelling !== prevState.dwelling) {
        return {dwelling: nextProps.dwelling}
    }
    return null
}

编辑: 组件didupadte完成了任务:

componentDidUpdate(prevProps) {
    if (this.props.dwelling !== prevProps.dwelling){
        this.setState(() => ({dwelling: this.props.dwelling}));
    }
}