如何在使用React Router DOM v5.0.1时获取参数?之前我可以获取参数,但现在无法获取,问题出在哪里?
<BrowserRouter>
<Route path='/' exact component={Login} />
<Route path='/register' component={Register} />
<Route path='/home' component={Home} />
<Route path='/all/merchant' component={AllMerchant} />
<Route path='/detail/merchant/:id_merchant' exact component={DetailMerchant} />
<Route path='/detail/merchant/promo/:id_merchant' component={MerchantByPromo} />
<Route path='/promo/voucher/by/merchant/' component={MerchantByPromoDetail} />
<Route path='/all/category' component={Category} />
<Route path='/category/id/:category_id' component={CategoryById} render = {props => <CategoryById {...props} key={this.props.match.params} /> }/>
<Route path='/promo/grid/view' component={PromoGridView} />
{/* params not found */}
<Route path='/promo/grid/view/by/category/:category_id' component={AllPromoGridView} />
<Route path='/detail/promo/:voucher_id/category_id/:category_id' component={PromoGridViewDetail} />
{/* params not found */}
<Route path='/account' component={Account} />
</BrowserRouter>