reactjs - 直接访问 URL(在我的例子中为本地主机)时，如何在不使用按钮的情况下弹出登录屏幕(Azure AD)？

Question

我创建了一个基本的 React 应用程序，在其中实现了路由概念，并使用 Azure AD 进行身份验证。当我尝试使用登录按钮登录时，它工作正常，但我希望当我尝试访问主页时，它会自动重定向到登录页面(Microsoft 登录)，而无需单击任何按钮。

这是我的“App.js”代码，在“AuthConfig”中我只是声明了我的 clientId、redirecturi、范围和权限。

import Prices from "./pages/Prices";
import Ticket from "./pages/Ticket";
import Money from "./pages/Money";
import { BrowserRouter, Routes, Route } from "react-router-dom";
import {config} from "./AuthConfig";
import {PublicClientApplication} from '@azure/msal-browser';
import React from "react";

class App extends React.Component<any, any>{
  publicClientApplication: PublicClientApplication;  
  constructor(props){
    super(props);
    this.state = {
      error: null,
      isAuthenticated: false,
      user:{}
    };
    this.login=this.login.bind(this)
    
    this.publicClientApplication = new PublicClientApplication({
      auth:{
        clientId: config.appId,
        redirectUri: config.redirectUri,
        authority: config.authority
      },
      cache:{
        cacheLocation: "sessionStorage",
        storeAuthStateInCookie: false
      }
    });
  }
  async login(){
    try{
      
      await this.publicClientApplication.loginPopup(
        {
        scopes: config.scopes,
        prompt:"select_account"
      });
      this.setState({isAuthenticated:true})
  }
  catch(err){
    this.setState({
      isAuthenticated:false,
      user:{},
      error:err
    });
  }
}
logout(){
  this.publicClientApplication.logoutPopup();
}

render() {
  return(
    <div className="App">
     
      {this.state.isAuthenticated ? <p>
        <BrowserRouter>
        <Routes>
          <Route path="/" element={<Prices />} />
        </Routes>
      </BrowserRouter>
      </p>: 
      <p>
        <button onClick={() => this.login()} > Login </button>
      </p>
      }
      <BrowserRouter>
        <Routes>         
          <Route path="/Money" element={<Money />}></Route>
          <Route path="/Ticket" element={<Ticket/>}></Route>
        </Routes>
      </BrowserRouter>
      
     
    </div>
  );
}
}
export default App;

Answer 1

如果您只是希望在安装 App 组件时而不是单击按钮时自动调用 login 函数，您可以在 componentDidMount 中执行此操作 生命周期方法。

示例:

class App extends React.Component<any, any> {
  publicClientApplication: PublicClientApplication;

  constructor(props) {
    super(props);
    this.state = {
      error: null,
      isAuthenticated: false,
      user: {}
    };

    this.publicClientApplication = new PublicClientApplication({
      auth: {
        clientId: config.appId,
        redirectUri: config.redirectUri,
        authority: config.authority
      },
      cache: {
        cacheLocation: "sessionStorage",
        storeAuthStateInCookie: false
      }
    });
  }

  componentDidMount() {
    this.login();
  }

  login = sync () => {
    try {
      await this.publicClientApplication.loginPopup({
        scopes: config.scopes,
        prompt: "select_account"
      });
      this.setState({ isAuthenticated: true });
    } catch(err) {
      this.setState({
        isAuthenticated: false,
        user: {},
        error: err
      });
    }
  }

  logout() {
    this.publicClientApplication.logoutPopup();
  }

  render() {
    return(
      <div className="App">
        {this.state.isAuthenticated && (
          <BrowserRouter>
            <Routes>
              <Route path="/" element={<Prices />} />
            </Routes>
          </BrowserRouter>
        )}
        <BrowserRouter>
          <Routes>
            <Route path="/Money" element={<Money />} />
            <Route path="/Ticket" element={<Ticket />} />
          </Routes>
        </BrowserRouter>
      </div>
    );
  }
}

我也不确定使用两个路由器会发生什么，您很可能希望合并这些路由器，以便所有路由都在同一个路由上下文中呈现。

示例:

<div className="App">
  <BrowserRouter>
    <Routes>
      <Route
        path="/"
        element={this.state.isAuthenticated ? <Prices /> : null}
      />
      <Route path="/Money" element={<Money />} />
      <Route path="/Ticket" element={<Ticket />} />
    </Routes>
  </BrowserRouter>
</div>