Question

好的，这是我的问题。我正在使用反应路由器，并且交换机仅显示“ /”路由，而没有其他显示。我在开发人员工具react插件中看到了这一点。我省略了导入语句，我的代码App.js

    const Header = () => {return (
        <div>
          Hello
        </div>

  );
}

export const App = () => {
  return (
       <BrowserRouter>
         <div>
         <Header />
           <Switch>
              <Route exact path="/" component={Login}/>
              <Route exact path="/login" component={MainPage}/>

           </Switch>
         </div>
       </BrowserRouter>
);}

index.js

ReactDOM.render(
  <App />,
  document.getElementById('root')
);

package.json

    {
  "name": "first-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "axios": "^0.18.0",
    "react": "^16.4.1",
    "react-autocomplete": "^1.8.1",
    "react-bootstrap": "^0.32.1",
    "react-date-picker": "^6.10.4",
    "react-dom": "^16.4.1",
    "react-router": "^4.3.1",
    "react-router-dom": "^4.3.1",
    "react-router-link": "^2.0.2",
    "react-scripts": "1.1.4",
    "react-table": "^6.8.6"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  }
}

然后反应控制台窗口中的输出 only 1 route visible, click here for my screenshot

是的，可能是这种情况，以及它在调试器中的外观。但是，这只是问题的一部分。我还有另一个组件MainPage，它还有另一个Switch。这在React-debugger中也是空的，当我使用按钮时，它会转到一个新页面，并且显示为空。我还要附加MainPage组件

export const MainPage = () => {
    return (
        <div><div>
          <Navbar>
            <Navbar.Header>
              <Navbar.Brand>
                Attendance App
              </Navbar.Brand>
            </Navbar.Header>
            <Nav>
              <NavItem eventKey='updatePage' href="showUpdatePage">
                Update Attendance
              </NavItem>
              <NavItem eventKey='addEmployee' href="/showAddEmployeePage">
                Add Employee
              </NavItem>
              <NavItem eventKey='reports' href="reportsPage">
                Reports
              </NavItem>
            </Nav>
          </Navbar></div><div>        
          <Switch>
            <Route exact path='/showAddEmployeePage' component={AddEmployee} />
            <Route exact path='/reportsPage' component={Reports} />
            <Route exact path='/showUpdatePage' component={UpdateAttendance} />
            <Route exact path='/' component={Login} />
          </Switch>  
        </div></div>)
}

React Router交换机中缺少交换机路由

0 个答案: