這次帶給大家怎麼使用react router4 redux實現路由權限控制，使用react router4 redux實現路由權限控制的注意事項有哪些，下面就是實戰案例，一起來看一下。
總體概述
一個完善的路由系統應該是這樣子的，當連結到的元件是需要登入後才能查看，要能夠跳到登入頁，然後登入成功後又跳回來之前想造訪的頁面。這裡主要是用一個權限控制類別來定義路由路由訊息，同時用redux把登入成功後要存取的路由位址給保存起來，登入成功時看redux裡面有沒有儲存位址，如果沒有儲存位址就跳到預設路由位址。
路由權限控制類別
在這個方法裡面，透過sessionStorage判斷是否登入了，如果沒有登錄，就儲存目前想要跳轉的路由到redux裡面。然後跳到我們登入頁。
import React from 'react'
import { Route, Redirect } from 'react-router-dom'
import { setLoginRedirectUrl } from '../actions/loginAction'
class AuthorizedRoute extends React.Component {
render() {
const { component: Component, ...rest } = this.props
const isLogged = sessionStorage.getItem("userName") != null ? true : false;
if(!isLogged) {
setLoginRedirectUrl(this.props.location.pathname);
}
return (
<Route {...rest} render={props => {
return isLogged
? <Component {...props} />
: <Redirect to="/login" />
}} />
)
}
}
export default AuthorizedRoute登入後複製
路由定義訊息
路由資訊也很簡單。只是對需要登入後才能查看的路由用AuthorizedRoute定義。
import React from 'react'
import { BrowserRouter, Switch, Route, Redirect } from 'react-router-dom'
import Layout from '../pages/layout/Layout'
import Login from '../pages/login/Login'
import AuthorizedRoute from './AuthorizedRoute'
import NoFound from '../pages/noFound/NoFound'
import Home from '../pages/home/Home'
import Order from '../pages/Order/Order'
import WorkOrder from '../pages/Order/WorkOrder'
export const Router = () => (
<BrowserRouter>
<p>
<Switch>
<Route path="/login" component={Login} />
<Redirect from="/" exact to="/login"/>{/*注意redirect转向的地址要先定义好路由*/}
<AuthorizedRoute path="/layout" component={Layout} />
<Route component={NoFound}/>
</Switch>
</p>
</BrowserRouter>
)登入後複製
登入頁
就是把存在redux裡面的位址給取出來，登入成功後就跳過去，如果沒有就跳到預設頁面，我這裡是預設跳到主頁。因為用了antd的表單，程式碼有點長，只要要看連接redux那兩句和handleSubmit裡面的內容。
import React from 'react'
import './Login.css'
import { login } from '../../mock/mock'
import { Form, Icon, Input, Button, Checkbox } from 'antd';
import { withRouter } from 'react-router-dom';
import { connect } from 'react-redux'
const FormItem = Form.Item;
class NormalLoginForm extends React.Component {
constructor(props) {
super(props);
this.isLogging = false;
}
handleSubmit = (e) => {
e.preventDefault();
this.props.form.validateFields((err, values) => {
if (!err) {
this.isLogging = true;
login(values).then(() => {
this.isLogging = false;
let toPath = this.props.toPath === '' ? '/layout/home' : this.props.toPath
this.props.history.push(toPath);
})
}
});
}
render() {
const { getFieldDecorator } = this.props.form;
return (
<Form onSubmit={this.handleSubmit.bind(this)} className="login-form">
<FormItem>
{getFieldDecorator('userName', {
rules: [{ required: true, message: 'Please input your username!' }],
})(
<Input prefix={<Icon type="user" style={{ color: 'rgba(0,0,0,.25)' }} />} placeholder="Username" />
)}
</FormItem>
<FormItem>
{getFieldDecorator('password', {
rules: [{ required: true, message: 'Please input your Password!' }],
})(
<Input prefix={<Icon type="lock" style={{ color: 'rgba(0,0,0,.25)' }} />} type="password" placeholder="Password" />
)}
</FormItem>
<FormItem>
{getFieldDecorator('remember', {
valuePropName: 'checked',
initialValue: true,
})(
<Checkbox>Remember me</Checkbox>
)}
<a className="login-form-forgot" href="">Forgot password</a>
<Button type="primary" htmlType="submit" className="login-form-button"
loading={this.isLogging ? true : false}>
{this.isLogging ? 'Loging' : 'Login'}
</Button>
Or <a href="">register now!</a>
</FormItem>
</Form>
);
}
}
const WrappedNormalLoginForm = Form.create()(NormalLoginForm);
const loginState = ({ loginState }) => ({
toPath: loginState.toPath
})
export default withRouter(connect(
loginState
)(WrappedNormalLoginForm))登入後複製
順便說一下這裡redux的使用吧。我暫時只會基本上使用方法：定義reducer，定義actions,建立store，然後在需要使用redux的變數時候去connect一下redux，需要dispatch改變變數時，就直接把actions裡面的方法引入，直接調用就可以啦。為了讓actions和reducer裡面的事件名稱對的上，怕打錯字和方便後面修改吧，我建了個actionsEvent.js來存放事件名稱。
reducer:
import * as ActionEvent from '../constants/actionsEvent'
const initialState = {
toPath: ''
}
const loginRedirectPath = (state = initialState, action) => {
if(action.type === ActionEvent.Login_Redirect_Event) {
return Object.assign({}, state, {
toPath: action.toPath
})
}
return state;
}
export default loginRedirectPath登入後複製
actions:
import store from '../store'
import * as ActionEvent from '../constants/actionsEvent'
export const setLoginRedirectUrl = (toPath) => {
return store.dispatch({
type: ActionEvent.Login_Redirect_Event,
toPath: toPath
})
}登入後複製
創建store
import { createStore, combineReducers } from 'redux'
import loginReducer from './reducer/loginReducer'
const reducers = combineReducers({
loginState: loginReducer //这里的属性名loginState对应于connect取出来的属性名
})
const store = createStore(reducers)
export default store登入後複製
相信看了本文案例你已經掌握了方法，更多精彩請關注php中文網其它相關文章！
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以上是怎麼使用react router4+redux實現路由權限控制的詳細內容。更多資訊請關注PHP中文網其他相關文章！
