问题
I developed a Singnup page using Reactjs on the front-end and laravel on the backend and I want when I click on the button register, it will be redirected to my login page.
My Signup component is :
handleSubmit = event => {
event.preventDefault();
const users = {
name:this.state.name,
email:this.state.email,
cin:this.state.cin,
phoneNumber:this.state.phoneNumber,
birthDate:this.birthDate,
password:this.state.password
}
console.log(users)
axios({
method: 'post',
url: 'http://172.16.234.24:8000/api/register',
data: users,
headers: {
'Access-Control-Allow-Origin': '*',
'Content-Type': 'application/json',
'Accept': 'application/json',
}
})
.then(function (response) {
console.log(response);
this.props.history.push('/login');
})
.catch(function (response) {
console.log(response);
});
}
My routes is :
import React from "react";
import { Route, Switch, } from "react-router-dom";
import Home from "./Home";
import NotFound from "./NotFound";
import Login from "./Login";
import Signup from "./Signup";
export default () =>
<Switch>
<Route path="/" exact component={Home} />
<Route path="/login" exact component={Login} />
<Route path="/signup" exact component={Signup} />
<Route component={NotFound} />
</Switch>;
My index is :
import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter as Router } from "react-router-dom";
import App from './App';
import * as serviceWorker from './serviceWorker';
ReactDOM.render(
<Router>
<App />
</Router>
, document.getElementById('root'));
serviceWorker.unregister();
My App.js is :
import React, { Component } from 'react';
import { Link } from 'react-router-dom';
import { Nav, Navbar, NavItem } from "react-bootstrap";
import { LinkContainer } from "react-router-bootstrap";
import Routes from "./Routes";
import './App.css';
class App extends Component {
render() {
return (
<div className="App container">
<Navbar fluid collapseOnSelect>
<Navbar.Header>
<Navbar.Brand>
<Link to="/">Home</Link>
</Navbar.Brand>
<Navbar.Toggle />
</Navbar.Header>
<Navbar.Collapse>
<Nav pullRight>
<LinkContainer to="/signup">
<NavItem>Signup</NavItem>
</LinkContainer>
<LinkContainer to="/login">
<NavItem>Login</NavItem>
</LinkContainer>
</Nav>
</Navbar.Collapse>
</Navbar>
<Routes />
</div>
);
}}
export default App;
My react-router-dom version is 4.3.1, when I run that I get :
typeerror: cannot read property 'props' of undefined
How can I fix that ?
回答1:
try to isolate the property before the axios call:
let { history } = this.props
axios({
method: 'post',
url: 'http://172.16.234.24:8000/api/register',
data: users,
headers: {
'Access-Control-Allow-Origin': '*',
'Content-Type': 'application/json',
'Accept': 'application/json',
}
})
.then(function (response) {
console.log(response);
history.push('/login');
})
.catch(function (response) {
console.log(response);
});
回答2:
You should wrap the signup component with withRouter
higher order component to gain access to this.props.history
.
More info in react-router docs
回答3:
Just tested this- it redirects just fine.
(within Signup component)..
import React, { Component } from "react";
const axios = require('axios');
export default class Signup extends Component {
constructor(props) {
super(props);
this.state = {}
}
handleSubmit = event => {
event.preventDefault();
axios({
method: 'get',
headers: {
"Content-type": "application/json"
},
url: 'https://jsonplaceholder.typicode.com/todos/1'
}).then(response => {
console.log(response);
this.props.history.push('/login');
})
.catch(response => {
console.log(response);
});
}
render() {
return(
<form onSubmit={this.handleSubmit}>
<button
type="submit">
yo
</button>
</form>
)
}
}
Try it with the above placeholder code to prove that the redirect works without fail, then replace with your custom API + POST
. Note: you may need to stringify
the POST
payload.
We don't know what your App.js looks like, but your App.js would also need to include the <Router />
component.
来源:https://stackoverflow.com/questions/54243931/how-to-redirect-to-another-page-using-history-on-react-js