使用react router，我可以使用Link元素来创建由react route本地处理的链接。
我看到它在内部调用this.context.transitionTo（…）。
我想做导航。不是来自链接，而是来自下拉选择（例如）。我如何在代码中执行此操作？this.context是什么？
我看到了导航混合，但我可以在没有混合的情况下这样做吗？
当前回答
对于这一个，谁不控制服务器端，因此使用哈希路由器v2：
将历史记录放入单独的文件（例如app_history.js ES6）：
import { useRouterHistory } from 'react-router'
import { createHashHistory } from 'history'
const appHistory = useRouterHistory(createHashHistory)({ queryKey: false });
export default appHistory;
并在任何地方使用它！
react router（app.js ES6）的入口点：
import React from 'react'
import { render } from 'react-dom'
import { Router, Route, Redirect } from 'react-router'
import appHistory from './app_history'
...
const render((
<Router history={appHistory}>
...
</Router>
), document.querySelector('[data-role="app"]'));
任何组件（ES6）内的导航：
import appHistory from '../app_history'
...
ajaxLogin('/login', (err, data) => {
if (err) {
console.error(err); // login failed
} else {
// logged in
appHistory.replace('/dashboard'); // or .push() if you don't need .replace()
}
})
其他回答
如果您正在使用哈希或浏览器历史记录，那么您可以
hashHistory.push('/login');
browserHistory.push('/login');
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;
对于ES6+React组件，以下解决方案适用于我。
我跟随费利佩·斯金纳，但添加了一个端到端解决方案，以帮助像我这样的初学者。
以下是我使用的版本：
“反应路由器”：“^2.7.0”“反应”：“^15.3.1”
下面是我的react组件，其中我使用react路由器进行编程导航：
import React from 'react';
class loginComp extends React.Component {
constructor( context) {
super(context);
this.state = {
uname: '',
pwd: ''
};
}
redirectToMainPage(){
this.context.router.replace('/home');
}
render(){
return <div>
// skipping html code
<button onClick={this.redirectToMainPage.bind(this)}>Redirect</button>
</div>;
}
};
loginComp.contextTypes = {
router: React.PropTypes.object.isRequired
}
module.exports = loginComp;
以下是路由器的配置：
import { Router, Route, IndexRedirect, browserHistory } from 'react-router'
render(<Router history={browserHistory}>
<Route path='/' component={ParentComp}>
<IndexRedirect to = "/login"/>
<Route path='/login' component={LoginComp}/>
<Route path='/home' component={HomeComp}/>
<Route path='/repair' component={RepairJobComp} />
<Route path='/service' component={ServiceJobComp} />
</Route>
</Router>, document.getElementById('root'));
对于这一个，谁不控制服务器端，因此使用哈希路由器v2：
将历史记录放入单独的文件（例如app_history.js ES6）：
import { useRouterHistory } from 'react-router'
import { createHashHistory } from 'history'
const appHistory = useRouterHistory(createHashHistory)({ queryKey: false });
export default appHistory;
并在任何地方使用它！
react router（app.js ES6）的入口点：
import React from 'react'
import { render } from 'react-dom'
import { Router, Route, Redirect } from 'react-router'
import appHistory from './app_history'
...
const render((
<Router history={appHistory}>
...
</Router>
), document.querySelector('[data-role="app"]'));
任何组件（ES6）内的导航：
import appHistory from '../app_history'
...
ajaxLogin('/login', (err, data) => {
if (err) {
console.error(err); // login failed
} else {
// logged in
appHistory.replace('/dashboard'); // or .push() if you don't need .replace()
}
})
以下是最简单、最干净的方法，大约是当前的React Router 3.0.0和ES6：
使用ES6反应路由器3.x.x：
import { withRouter } from 'react-router';
class Example extends React.Component {
// use `this.props.router.push('/some/path')` here
};
// Export the decorated class
export default withRouter(Example);
或者，如果不是默认类，则导出如下：
withRouter(Example);
export { Example };
注意，在3.x.x中，<Link>组件本身使用router.push，因此您可以传递任何传递<Linkto=标记的内容，例如：
this.props.router.push({pathname: '/some/path', query: {key1: 'val1', key2: 'val2'})'
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