Reactjsの新しいreact-router-domでRedirectを使うには？

class MyComponent extends React.Component {
  state = {
    redirect: false
  }

  handleSubmit () {
    axios.post(/**/)
      .then(() => this.setState({ redirect: true }));
  }

  render () {
    const { redirect } = this.state;

     if (redirect) {
       return ;
     }

     return ;
}

const app = express();
app.use(express.static('distApp'));

/**
 * Enable routing with React.
 */
app.get('*', (req, res) => {
  res.sendFile(path.resolve('distApp', 'index.html'));
});

// Relative imports
import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter, Route, Switch, Redirect } from 'react-router-dom';

// Absolute imports
import YourReactComp from './YourReactComp.jsx';

const root = document.getElementById('root');

const MainPage= () => (
  <div>Main Page</div>
);

const EditPage= () => (
  <div>Edit Page</div>
);

const NoMatch = () => (
  <p>No Match</p>
);

const RoutedApp = () => (





       ()} />          



);

ReactDOM.render(, root); 

this.props.history.push('/main');

import React, { PropTypes } from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter } from 'react-router-dom';
import { Redirect } from 'react-router'

import SignUpForm from '../../register/components/SignUpForm';
import styles from './PagesStyles.css';
import axios from 'axios';
import Footer from '../../shared/components/Footer';

class SignUpPage extends React.Component {
  constructor(props) {
    super(props);

    this.state = {
      errors: {},
      callbackResponse: null,
      client: {
        userclient: '',
        clientname: '',
        clientbusinessname: '',
        password: '',
        confirmPassword: ''
      }
    };

    this.processForm = this.processForm.bind(this);
    this.changeClient = this.changeClient.bind(this);
  }

  changeClient(event) {
    const field = event.target.name;
    const client = this.state.client;
    client[field] = event.target.value;

    this.setState({
      client
    });
  }

  processForm(event) {
    event.preventDefault();

    const userclient = this.state.client.userclient;
    const clientname = this.state.client.clientname;
    const clientbusinessname = this.state.client.clientbusinessname;
    const password = this.state.client.password;
    const confirmPassword = this.state.client.confirmPassword;
    const formData = { userclient, clientname, clientbusinessname, password, confirmPassword };

    axios.post('/signup', formData, { headers: {'Accept': 'application/json'} })
      .then((response) => {
        this.setState({
          callbackResponse: {response.data},
        });
      }).catch((error) => {
        const errors = error.response.data.errors ? error.response.data.errors : {};
        errors.summary = error.response.data.message;

        this.setState({
          errors
        });
      });
  }

const renderMe = ()=>{
return(
this.state.callbackResponse
?  
: 
)}

  render() {
    return (
      <div className={styles.section}>
        <div className={styles.container}>

         {renderMe()}
          <Footer />
        </div>
      </div>
    );
  }
}

export default SignUpPage;

「react-router」から{useHistory}をインポートします。

関数HomeButton(){。
  history = useHistory()とします。

  関数handleClick(){。
    history.push( "/ home")。
  }。

  戻る(。
    < button type = "button" onClick = {handleClick}>。
      家に帰れ。
    < / button>。
  )。
}。
``。

  [1]:https://reacttraining.com/react-router/web/api/Hooks/usehistory。

import React from "react"
import PropTypes from "prop-types"
import { withRouter } from "react-router"

// A simple component that shows the pathname of the current location
class ShowTheLocation extends React.Component {
  static propTypes = {
    match: PropTypes.object.isRequired,
    location: PropTypes.object.isRequired,
    history: PropTypes.object.isRequired
  }

  render() {
    const { match, location, history } = this.props

    return <div>You are now at {location.pathname}</div>
  }
}
// Create a new component that is "connected" (to borrow redux
// terminology) to the router.
const ShowTheLocationWithRouter = withRouter(ShowTheLocation)

import { withRouter } from 'react-router-dom'

const Button = withRouter(({ history }) => (
   { history.push('/new-location') }}
  >
    Click Me!

))

import React, { Component } from 'react';
import '../assets/mystyle.css';
import { Redirect } from 'react-router';
import PropTypes from 'prop-types';

export default class Header extends Component {   
    viewAbout() {
       this.context.router.history.push('/about')
    }
    render() {
        return (
            <header className="App-header">
                <div className="myapp_menu">
                    <input type="button" value="Home" />
                    <input type="button" value="Services" />
                    <input type="button" value="Contact" />
                    <input type="button" value="About" onClick={() => { this.viewAbout() }} />
                </div>
            </header>
        )
    }
}
Header.contextTypes = {
    router: PropTypes.object
  };

import React, { Component, Fragment } from 'react'

class Example extends Component {

  redirect() {
    this.props.history.push('/main')
  }

  render() {
    return (

        {this.redirect()}

    );
   }
 }

 export default Example

import React, {useState} from 'react';
import {Redirect} from "react-router-dom";

const RedirectHoc = (WrappedComponent) => () => {
    const [routName, setRoutName] = useState("");
    const redirect = (to) => {
        setRoutName(to);
    };

    if (routName) {
        return 
    }
    return (



    );
};

export default RedirectHoc;

 { this.props.history.push('/mails') } }
/>