reactjs 如何创建受保护的路由？

liwlm1x9 于 2022-12-03 发布在 React

关注(0)|答案(5)|浏览(110)

如何使用react-router-dom创建一个受保护的路由，并将响应存储在本地存储中，以便用户下次尝试打开时可以再次查看其详细信息。登录后，他们应该重定向到 Jmeter 板页面。
所有功能都添加在ContextApi中。代码和框链接：Code
我尝试过，但无法实现
路由页面

import React, { useContext } from "react";
import { globalC } from "./context";
import { Route, Switch, BrowserRouter } from "react-router-dom";
import About from "./About";
import Dashboard from "./Dashboard";
import Login from "./Login";
import PageNotFound from "./PageNotFound";

function Routes() {
  const { authLogin } = useContext(globalC);
  console.log("authLogin", authLogin);

  return (
    <BrowserRouter>
      <Switch>
        {authLogin ? (
          <>
            <Route path="/dashboard" component={Dashboard} exact />
            <Route exact path="/About" component={About} />
          </>
        ) : (
          <Route path="/" component={Login} exact />
        )}

        <Route component={PageNotFound} />
      </Switch>
    </BrowserRouter>
  );
}
export default Routes;

上下文页

import React, { Component, createContext } from "react";
import axios from "axios";

export const globalC = createContext();

export class Gprov extends Component {
  state = {
    authLogin: null,
    authLoginerror: null
  };
  componentDidMount() {
    var localData = JSON.parse(localStorage.getItem("loginDetail"));
    if (localData) {
      this.setState({
        authLogin: localData
      });
    }
  }

  loginData = async () => {
    let payload = {
      token: "ctz43XoULrgv_0p1pvq7tA",
      data: {
        name: "nameFirst",
        email: "internetEmail",
        phone: "phoneHome",
        _repeat: 300
      }
    };
    await axios
      .post(`https://app.fakejson.com/q`, payload)
      .then((res) => {
        if (res.status === 200) {
          this.setState({
            authLogin: res.data
          });
          localStorage.setItem("loginDetail", JSON.stringify(res.data));
        }
      })
      .catch((err) =>
        this.setState({
          authLoginerror: err
        })
      );
  };
  render() {
    // console.log(localStorage.getItem("loginDetail"));
    return (
      <globalC.Provider
        value={{
          ...this.state,
          loginData: this.loginData
        }}
      >
        {this.props.children}
      </globalC.Provider>
    );
  }
}

reactjs

来源：https://stackoverflow.com/questions/66289122/how-to-create-a-protected-route

5条答案

按热度按时间

ehxuflar1#

Issue

<BrowserRouter>
  <Switch>
    {authLogin ? (
      <>
        <Route path="/dashboard" component={Dashboard} exact />
        <Route exact path="/About" component={About} />
      </>
    ) : (
      <Route path="/" component={Login} exact />
    )}

    <Route component={PageNotFound} />
  </Switch>
</BrowserRouter>

The Switch doesn't handle rendering anything other than Route and Redirect components. If you want to "nest" like this then you need to wrap each in generic routes, but that is completely unnecessary.
Your login component also doesn't handle redirecting back to any "home" page or private routes that were originally being accessed.

Solution

`react-router-dom` v5

Create a PrivateRoute component that consumes your auth context.

const PrivateRoute = (props) => {
  const location = useLocation();
  const { authLogin } = useContext(globalC);

  if (authLogin === undefined) {
    return null; // or loading indicator/spinner/etc
  }

  return authLogin ? (
    <Route {...props} />
  ) : (
    <Redirect
      to={{
        pathname: "/login",
        state: { from: location }
      }}
    />
  );
};

Update your Login component to handle redirecting back to the original route being accessed.

export default function Login() {
  const location = useLocation();
  const history = useHistory();
  const { authLogin, loginData } = useContext(globalC);

  useEffect(() => {
    if (authLogin) {
      const { from } = location.state || { from: { pathname: "/" } };
      history.replace(from);
    }
  }, [authLogin, history, location]);

  return (
    <div
      style={{ height: "100vh" }}
      className="d-flex justify-content-center align-items-center"
    >
      <button type="button" onClick={loginData} className="btn btn-primary">
        Login
      </button>
    </div>
  );
}

Render all your routes in a "flat list"

function Routes() {
  return (
    <BrowserRouter>
      <Switch>
        <PrivateRoute path="/dashboard" component={Dashboard} />
        <PrivateRoute path="/About" component={About} />
        <Route path="/login" component={Login} />
        <Route component={PageNotFound} />
      </Switch>
    </BrowserRouter>
  );
}

`react-router-dom` v6

In version 6 custom route components have fallen out of favor, the preferred method is to use an auth layout component.

import { Navigate, Outlet } from 'react-router-dom';

const PrivateRoutes = () => {
  const location = useLocation();
  const { authLogin } = useContext(globalC);

  if (authLogin === undefined) {
    return null; // or loading indicator/spinner/etc
  }

  return authLogin 
    ? <Outlet />
    : <Navigate to="/login" replace state={{ from: location }} />;
}

...

<BrowserRouter>
  <Routes>
    <Route path="/" element={<PrivateRoutes />} >
      <Route path="dashboard" element={<Dashboard />} />
      <Route path="about" element={<About />} />
    </Route>
    <Route path="/login" element={<Login />} />
    <Route path="*" element={<PageNotFound />} />
  </Routes>
</BrowserRouter>

const routes = [
  {
    path: "/",
    element: <PrivateRoutes />,
    children: [
      {
        path: "dashboard",
        element: <Dashboard />,
      },
      {
        path: "about",
        element: <About />
      },
    ],
  },
  {
    path: "/login",
    element: <Login />,
  },
  {
    path: "*",
    element: <PageNotFound />
  },
];

...

export default function Login() {
  const location = useLocation();
  const navigate = useNavigate();
  const { authLogin, loginData } = useContext(globalC);

  useEffect(() => {
    if (authLogin) {
      const { from } = location.state || { from: { pathname: "/" } };
      navigate(from, { replace: true });
    }
  }, [authLogin, location, navigate]);

  return (
    <div
      style={{ height: "100vh" }}
      className="d-flex justify-content-center align-items-center"
    >
      <button type="button" onClick={loginData} className="btn btn-primary">
        Login
      </button>
    </div>
  );
}

赞(0）回复(0）举报 2022-12-03

gpfsuwkq2#

对于v6：

import { Routes, Route, Navigate } from "react-router-dom";

function App() {
  return (
    <Routes>
      <Route path="/public" element={<PublicPage />} />
      <Route
        path="/protected"
        element={
          <RequireAuth redirectTo="/login">
            <ProtectedPage />
          </RequireAuth>
        }
      />
    </Routes>
  );
}

function RequireAuth({ children, redirectTo }) {
  let isAuthenticated = getAuth();
  return isAuthenticated ? children : <Navigate to={redirectTo} />;
}

文件链接：https://gist.github.com/mjackson/d54b40a094277b7afdd6b81f51a0393f

赞(0）回复(0）举报 2022-12-03

piok6c0g3#

import { v4 as uuidv4 } from "uuid";

const routes = [
    {
        id: uuidv4(),
        isProtected: false,
        exact: true,
        path: "/home",
        component: param => <Overview {...param} />,
    },
    {
        id: uuidv4(),
        isProtected: true,
        exact: true,
        path: "/protected",
        component: param => <Overview {...param} />,
        allowed: [...advanceProducts], // subscription
    },
    {
        // if you conditional based rendering for same path
        id: uuidv4(),
        isProtected: true,
        exact: true,
        path: "/",
        component: null,
        conditionalComponent: true,
        allowed: {
            [subscription1]: param => <Overview {...param} />,
            [subscription2]: param => <Customers {...param} />,
        },
    },
]

// Navigation Component
import React, { useEffect, useState } from "react";
import { useSelector } from "react-redux";
import { Switch, Route, useLocation } from "react-router-dom";

// ...component logic
<Switch>
    {routes.map(params => {
        return (
            <ProtectedRoutes
                exact
                routeParams={params}
                key={params.path}
                path={params.path}
            />
        );
    })}
    <Route
        render={() => {
            props.setHideNav(true);
            setHideHeader(true);
            return <ErrorPage type={404} />;
        }}
    />
</Switch>

// ProtectedRoute component
import React from "react";
import { Route } from "react-router-dom";
import { useSelector } from "react-redux";

const ProtectedRoutes = props => {
    const { routeParams } = props;
    const currentSubscription = 'xyz'; // your current subscription;
    if (routeParams.conditionalComponent) {
        return (
            <Route
                key={routeParams.path}
                path={routeParams.path}
                render={routeParams.allowed[currentSubscription]}
            />
        );
    }
    if (routeParams.isProtected && routeParams.allowed.includes(currentSubscription)) {
        return (
            <Route key={routeParams.path} path={routeParams.path} render={routeParams?.component} />
        );
    }
    if (!routeParams.isProtected) {
        return (
            <Route key={routeParams.path} path={routeParams.path} render={routeParams?.component} />
        );
    }
    return null;
};

export default ProtectedRoutes;

希望添加突出显示永远不要忘记给予路径作为道具ProtectedRoute，否则它将无法工作。

赞(0）回复(0）举报 2022-12-03

mrfwxfqh4#

下面是一个简单的react-router v6保护的路由。我已经把所有我想保护的路由放在a routes.js 中：-

const routes = [{ path: "/dasboard", name:"Dashboard", element: <Dashboard/> }]

要渲染路线，只需按如下方式Map它们：-

<Routes>
   {routes.map((routes, id) => {
     return(
     <Route
         key={id}
         path={route.path}
         exact={route.exact}
         name={route.name}
         element={
            localStorage.getItem("token") ? (
                route.element
             ) : (
                <Navigate to="/login" />
             )
         }
     )
   })
  }
</Routes>

赞(0）回复(0）举报 2022-12-03

ddarikpa5#

如果你想要一个简单的方法来实现，那么使用App.js中的Login，如果用户登录，那么设置用户变量。如果设置了用户变量，那么启动那些路径，否则它将停留在登录页面。我在我的项目中实现了这个。

return (
<div>
  <Notification notification={notification} type={notificationType} />

  {
    user === null &&
    <LoginForm startLogin={handleLogin} />
  }

  {
    user !== null &&
    <NavBar user={user} setUser={setUser} />
  }

  {
    user !== null &&
    <Router>
      <Routes>
        <Route exact path="/" element={<Home />} />
        <Route exact path="/adduser" element={<AddUser />} />
        <Route exact path="addorg" element={<Addorg />} />
        <Route exact path="/vieworg" element={<ViewOrg />} />
        <Route exact path="/orghr/:id" element={<CompHR />} />
        <Route exact path="/edituser/:id" element={<EditUser />} />
        <Route exact path="/viewuser/:id" element={<ViewUser />} />
      </Routes>
    </Router>
  }

</div>

）

赞(0）回复(0）举报 2022-12-03

我来回答

reactjs 如何创建受保护的路由？

5条答案

Issue

Solution

`react-router-dom` v5

`react-router-dom` v6

对于v6：

相关问题

热门标签

最新问答

reactjs 如何创建受保护的路由？

5条答案

Issue

Solution

react-router-dom v5

react-router-dom v6

对于v6：

相关问题

热门标签

最新问答

`react-router-dom` v5

`react-router-dom` v6