React router中设置默认路由

需求，设置Product为默认路由

<Route path="/area" component={Area} />
<Route path="/product" component={Product} />

方法1

<Route path="/" component={Product} exact />
<Route path="/area" component={Area} />
<Route path="/product" component={Product} />

方法2

<Redirect path="/" to="/product" />
<Route path="/area" component={Area} />
<Route path="/product" component={Product} />

区别：方法2用 Redirect 会重定向url，推荐方法1