React路由器v6

我已经有一段时间没有接触过React了，但我想感谢并强调Shimrit Snapir的以下评论：

在React Router 6.0上，<Redirect/>更改为<Navigator/>

React路由器V4

tl:dr；

if (navigate) {
  return <Redirect to="/" push={true} />
}

简单而声明性的答案是，需要将<Redirectto={URL}push={boolean}/>与setState（）结合使用

push：boolean-如果为true，重定向将向历史中推送一个新条目，而不是替换当前条目。

import { Redirect } from 'react-router'

class FooBar extends React.Component {
  state = {
    navigate: false
  }

  render() {
    const { navigate } = this.state

    // Here is the important part
    if (navigate) {
      return <Redirect to="/" push={true} />
    }
   // ^^^^^^^^^^^^^^^^^^^^^^^

    return (
      <div>
        <button onClick={() => this.setState({ navigate: true })}>
          Home
        </button>
      </div>
    )
  }
}

这里有一个完整的例子。在这里阅读更多信息。

PS.该示例使用ES7+属性初始化器初始化状态。如果你感兴趣的话，也可以看看这里。

布局/BaseLayout.jsx

import { Outlet } from "react-router-dom";
import Navbar from "../components/Navbar";

const BaseLayout = () => {
    return(
        <div>
        <Navbar/>
        <Outlet/>
        </div>
    )
}

export default BaseLayout

路由器/index.jsx

import { createBrowserRouter} from "react-router-dom";
import BaseLayout from "../layouts/BaseLayout";
import HomePage from "../views/HomePage";
import Menu from "../components/Menu"
import Detail from "../components/Detail";

const router = createBrowserRouter([
    {
        element: <BaseLayout/>,
        children:[
            {
                path: "/",
                element: <Menu />,
            },
            {
                path: '/:id',
                element: <Detail/>
            }
        ]

    },
])

export default router

存储/actionType.js

export const FETCH_DATA_FOODS = "food/setFood"

export const FETCH_DATA_FOODS_DETAILS = "food/setDetailFood"

存储/还原器/还原器.js

import { FETCH_DATA_FOODS, FETCH_DATA_FOODS_DETAILS } from "../actionType";

const initialState = {
    foods:[],
    detailFood:{}
};

const foodReducer = (state = initialState, action) => {
    switch(action.type){
        case FETCH_DATA_FOODS:
            return{
                ...state,
                foods: action.payload
            }
        case FETCH_DATA_FOODS_DETAILS:
            return{
                ...state,
                detailFood: action.payload
            }
        default:
            return state
    }
}

export default foodReducer

存储/actionCreator

import { FETCH_DATA_FOODS, FETCH_DATA_FOODS_DETAILS } from "./actionType";

// import { FETCH_DATA_FOODS } from "../actionType";
export const actionFoodSetFoods = (payload) => {
  return {
    type: FETCH_DATA_FOODS,
    payload,
  };
};

export const actionDetailSetDetailFood = (payload) => {
  return {
    type: FETCH_DATA_FOODS_DETAILS,
    payload,
  };
};

export const fetchDataFoods = () => {
  return (dispatch, getState) => {
    fetch("https://maxxkafe.foxhub.space/users")
      .then((response) => {
        if (!response.ok) {
          throw new Error("notOk");
        }
        return response.json();
      })
      .then((data) => {
        // dispatcher({
        //     type: "food/setFood",
        //     payload: data
        // })

        dispatch(actionFoodSetFoods(data));
      });
  };
};

export const fetchDetailDataFood = (id) => {
  return (dispatch, getState) => {
    console.log(id);
    fetch(`https://maxxkafe.foxhub.space/users/${id}`)
      .then((response) => {
        if (!response.ok) {
          throw new Error("gaOkNich");
        }
        console.log(response, ",,,,,,,,");
        return response.json();
      })
      .then((data) => {
        dispatch(actionDetailSetDetailFood(data));
      });
  };
};

stores/index.js

import { legacy_createStore as createStore, combineReducers, applyMiddleware } from 'redux'
import foodReducer from './reducers/foodReducer'
import thunk from "redux-thunk"

const rootReducer = combineReducers({
    foods: foodReducer
});

const store = createStore(rootReducer, applyMiddleware(thunk));

export default store

应用程序.js

import { RouterProvider } from "react-router-dom";
import router from "./routers";
import { Provider } from "react-redux";
import store from "./stores";

const App = () => {
  return (
    <Provider store={store}>
      <RouterProvider router={router} />
    </Provider>
  );
};

export default App;

组件/类别.jsx

import { useEffect, useState } from "react";
import { useSelector, useDispatch } from "react-redux";
import { Link } from "react-router-dom";
import { fetchDataCategories } from "../stores/actionCreate";
import RowCategory from "../views/rowTableCategory";

const Category = () => {
  // const [categories, setCategories] = useState([])
  const { categories } = useSelector((state) => state.categories);
  const dispatcher = useDispatch();
  useEffect(() => {
    // fetch("http://localhost:3003/categories")
    // .then((response) => {
    //     if(!response.ok){
    //         throw new Error ("gaOkNich")
    //     }
    //     return response.json()
    // })
    // .then((data) => {
    //     setCategories(data)
    // })
    dispatcher(fetchDataCategories());
  }, []);
  return (
    <section className="mt-12">
      <div className="flex mr-20 mb-4">
        <Link to={'/add-Form'} className="flex ml-auto text-white bg-red-500 border-0 py-2 px-6 focus:outline-none hover:bg-red-600 rounded">
          Create Category
        </Link>
      </div>
      <div className="overflow-hidden rounded-lg border border-gray-200 shadow-md m-5">
        <table className="w-full border-collapse bg-white text-left text-sm text-gray-500">
          <thead className="bg-gray-50">
            <tr>
              <th scope="col" className="px-6 py-4 font-medium text-gray-900">
                Name
              </th>
              <th scope="col" className="px-6 py-4 font-medium text-gray-900">
                Created At
              </th>
              <th scope="col" className="px-6 py-4 font-medium text-gray-900">
                Updated At
              </th>
              <th
                scope="col"
                className="px-6 py-4 font-medium text-gray-900"
              ></th>
            </tr>
          </thead>
          <tbody className="divide-y divide-gray-100 border-t border-gray-100">
            {categories.map((el) => {
              return <RowCategory key={el.id} el={el} />;
            })}
          </tbody>
        </table>
      </div>
    </section>
  );
};

export default Category;

组件/login.jsx

import { useState } from "react";
import { useNavigate } from "react-router-dom";
import { useDispatch } from "react-redux";
import { fetchDataFoods, login } from "../stores/actionCreate";

const Login = () => {
  const input = {
    email: "",
    password: "",
  };
  const [values, setValues] = useState(input);
  // const [password, setPassword] = useState('')
  // const {admin} = useSelector((state) => state.admin)

  const dispatcher = useDispatch();
  const movePage = useNavigate();

  const handleChange = (event) => {
    const { name, value } = event.target;
    setValues({
      ...values,
      [name]: value,
    });
    console.log(value);
  };

  const handleLogin = async (event) => {
    event.preventDefault();
    try {
      await dispatcher(login(values));
      await dispatcher(fetchDataFoods());
      movePage("/home");
    } catch (error) {
      console.log(error);
    }
  };

  return (
    <section className="font-mono bg-white-400 mt-[10rem]">
      <div className="container mx-auto">
        <div className="flex justify-center px-6 my-12">
          <div className="w-full xl:w-3/4 lg:w-11/12 flex justify-center">
            <div className="w-full lg:w-7/12 bg-white p-5 rounded-lg lg:rounded-l-none">
              <h3 className="pt-4 text-2xl text-center">Login Your Account!</h3>
              <form
                className="px-8 pt-6 pb-8 mb-4 bg-white rounded"
                onSubmit={handleLogin}
              >
                <div className="mb-4">
                  <label
                    className="block mb-2 text-sm font-bold text-gray-700"
                    htmlFor="email"
                  >
                    Email
                  </label>
                  <input
                    className="w-full px-3 py-2 mb-3 text-sm leading-tight text-gray-700 border rounded shadow appearance-none focus:outline-none focus:shadow-outline"
                    id="email"
                    type="email"
                    name="email"
                    placeholder="Email"
                    // onChange={(event) => setValues({email: event.target.value})}
                    onChange={handleChange}
                    value={values.email.email}
                  />
                </div>

                <div className="mb-4 md:flex md:justify-between">
                  <div className="mb-4 md:mr-2 md:mb-0">
                    <label
                      className="block mb-2 text-sm font-bold text-gray-700"
                      htmlFor="password"
                    >
                      Password
                    </label>
                    <input
                      className="w-full px-3 py-2 mb-3 text-sm leading-tight text-gray-700 border  rounded shadow appearance-none focus:outline-none focus:shadow-outline"
                      id="password"
                      type="password"
                      name="password"
                      placeholder="Password"
                      onChange={handleChange}
                      value={values.password}
                      // onChange={(event) => setValues({password: event.target.value})}
                    />
                  </div>
                </div>
                <div className="mb-4 md:flex md:justify-between"></div>
                <div className="mb-6 text-center">
                  <button
                    className="w-full px-4 py-2 font-bold text-white bg-blue-500 rounded-full hover:bg-blue-700 focus:outline-none focus:shadow-outline"
                    type="submit"
                  >
                    Login
                  </button>
                </div>
              </form>
            </div>
          </div>
        </div>
      </div>
    </section>
  );
};
export default Login;

以下是如何使用带有ES6的react router v2.0.0来实现这一点。react路由器已远离mixin。

import React from 'react';

export default class MyComponent extends React.Component {
  navigateToPage = () => {
    this.context.router.push('/my-route')
  };

  render() {
    return (
      <button onClick={this.navigateToPage}>Go!</button>
    );
  }
}

MyComponent.contextTypes = {
  router: React.PropTypes.object.isRequired
}

在我的回答中，有三种不同的方法可以通过编程重定向到路由。已经介绍了一些解决方案，但下面的解决方案仅针对具有附加演示应用程序的功能组件。

使用以下版本：

反应：16.13.1反应时间：16.13.1反应路由器：5.2.0反应路由器dom：5.2.0字体：3.7.2

配置：

因此，首先解决方案是使用HashRouter，配置如下：

<HashRouter>
    // ... buttons for redirect

    <Switch>
      <Route exact path="/(|home)" children={Home} />
      <Route exact path="/usehistory" children={UseHistoryResult} />
      <Route exact path="/withrouter" children={WithRouterResult} />
      <Route exact path="/redirectpush" children={RedirectPushResult} />
      <Route children={Home} />
    </Switch>
</HashRouter>

从有关＜HashRouter＞的文档中：

一个<Router>，它使用URL的哈希部分（即window.location.hash）来保持UI与URL同步。

解决：

使用<Redirect>使用useState推送：

在功能组件（我的存储库中的RedirectPushAction组件）中使用，我们可以使用useState来处理重定向。棘手的是，一旦发生重定向，我们需要将重定向状态设置回false。通过使用带有0延迟的setTimeOut，我们等待React提交重定向到DOM，然后返回按钮，以便下次使用。

请在下面找到我的示例：

const [redirect, setRedirect] = useState(false);
const handleRedirect = useCallback(() => {
    let render = null;
    if (redirect) {
        render = <Redirect to="/redirectpush" push={true} />

        // In order wait until committing to the DOM
        // and get back the button for clicking next time
        setTimeout(() => setRedirect(false), 0);
    }
    return render;
}, [redirect]);

return <>
    {handleRedirect()}
    <button onClick={() => setRedirect(true)}>
        Redirect push
    </button>
</>

从<Redirect>文档：

渲染<重定向>将导航到新位置。新位置将覆盖历史堆栈中的当前位置，就像服务器端重定向（HTTP 3xx）那样。

使用useHistory钩子：

在我的解决方案中，有一个名为UseHistoryAction的组件，它表示以下内容：

let history = useHistory();

return <button onClick={() => { history.push('/usehistory') }}>
    useHistory redirect
</button>

useHistory钩子允许我们访问历史对象，它帮助我们以编程方式导航或更改路线。

使用withRouter，从道具获取历史记录：

创建了一个名为WithRouterAction的组件，显示如下：

const WithRouterAction = (props:any) => {
    const { history } = props;

    return <button onClick={() => { history.push('/withrouter') }}>
        withRouter redirect
    </button>
}

export default withRouter(WithRouterAction);

阅读路由器文档：

您可以通过withRouter高阶组件访问历史对象的财产和最接近的<Route>匹配项。无论何时渲染，withRouter都会将更新的匹配、位置和历史属性传递给包装组件。

演示：

为了更好地表示，我用这些示例构建了一个GitHub存储库，请在下面找到它：

React Router程序化重定向示例

要将withRouter与基于类的组件一起使用，请尝试以下操作。不要忘记将导出语句更改为与Router一起使用：

从“react router dom”导入｛withRouter｝

class YourClass extends React.Component {
  yourFunction = () => {
    doSomeAsyncAction(() =>
      this.props.history.push('/other_location')
    )
  }

  render() {
    return (
      <div>
        <Form onSubmit={ this.yourFunction } />
      </div>
    )
  }
}

export default withRouter(YourClass);

只需使用useNavigate，即可使用最新版本的react

新文件.js

import { useNavigate } from "react-router-dom";

const Newfile = () => {
    const navigate = useNavigate();
   
    ....

    navigate("yourdesiredlocation");

    ....
}

export default Newfile;

在代码中使用上述的useNavigate功能。