重定向

Question

登录后我遇到重定向问题。它在我对结果进行硬编码时起作用，但是当我调用api来检查身份验证时，它会重定向到＆＃34; / main＆＃34;并返回当前页面＆＃34; LoginForm＆＃34;。

import React, { Component } from 'react';
import LoginForm from './components/login/LoginFormContainer';
import Main from './components/main/MainContainer';
import {
  BrowserRouter as Router,
  Switch,
  Route
} from 'react-router-dom';
import './App.css';

class App extends Component {
  render() {
    return (
      <Router>
        <Switch>
          <Route exact name="login" path="/" component={LoginForm} />
          <Route exact name="main" path="/main" component={Main} />
        </Switch>
      </Router>
    );
  }
}

export default App;

并在我的loginPage中重定向到＆＃34; / main＆＃34;检查身份验证后

import React, { Component } from 'react';
import { Button, Form, Col, Row } from 'react-bootstrap';
import FieldGroup from '../common/FormGroup';
import { Redirect, Link } from 'react-router-dom';
import Logo from '../../img/zonLogo.svg';

class LoginForm extends Component {
  constructor(props) {
    super(props);
    this.handleChange = this.handleChange.bind(this);
    this.handleLoginClick = this.handleLoginClick.bind(this);
    this.state = {
      isLoggedIn: false,
      username: "",
      password: ""
    };
  }

  handleLoginClick(e) {
    var form = new FormData()
    form.append("username", "xxxxx");
    form.append("password", "xxxxx");
    let self = this;

    fetch('/login', {
      method: 'POST',
      body: form
    }).then(function (response) {
    if (response.status === 200) {
      return response.json()
    }
    }).then(function (data) {
  i    f (data.user !== undefined && !data.user.isSuspended &&     !data.user.banned) {
        self.setState({ isLoggedIn: true });
      }
    }).catch(function (error) {
      console.log("Call report API error");
    });
  }

render() {

if (this.state.isLoggedIn) {
  return <Redirect to="main" />;
}
return (
  <div >
    <Row>
      <Col>
        <Form onSubmit={this.handleLoginClick}>
          <FieldGroup
            id="username"
            type="text"
            placeholder="Username"/>
          <FieldGroup
            id="password"
            type="password"
            placeholder="Password"
            />
          <Button type="submit" block> Log in</Button>
        </Form>
      </Col>
    </Row>
  </div >
);
  }
}

export default LoginForm;

登录成功后，它会重定向到main，但会重定向回登录页面，但如果我硬编码就可以使用

handleLoginClick(e) {
    self.setState({ isLoggedIn: true });
}