一种选择是将您的单用表格与connect
的动作绑定在一起。由于<LoginComponent />
通常总是在做同样的事情,你可以使用它像这样:
import React from 'react';
import * as userActionCreators from '../actions/users';
import { connect } from 'react-redux';
export class LoginComponent extends React.Component {
static propTypes = {
login: React.PropTypes.func.isRequired
}
render() {
const { login } = this.props;
const { username, password } = this.state;
return (
<form onSubmit={() => login(username, password) }>
...
</form>
);
}
}
export default connect(null, userActionCreators)(LoginComponent);
connect
自动绑定行动的创建者,并分别提供dispatch
到props
,所以如果你想更明确的,上面的例子相同
import React from 'react';
import { login } from '../actions/users';
import { connect } from 'react-redux';
export class LoginComponent extends React.Component {
static propTypes = {
dispatch: React.PropTypes.func.isRequired
}
render() {
const { login, dispatch } = this.props;
const { username, password } = this.state;
return (
<form onSubmit={() => dispatch(login(username, password)) }>
...
</form>
);
}
}
export default connect()(LoginComponent);
而对于参考,userActionCreators
:
const LOGIN_SUCCESS = 'LOGIN_SUCCESS';
const LOGIN_FAILED = 'LOGIN_FAILED';
export function login(username, password) {
if (username === 'realUser' && password === 'secretPassword') {
return { type: LOGIN_SUCCESS, payload: { name: 'Joe', username: 'realUser' } };
} else {
return { type: LOGIN_FAILED, error: 'Invalid username or password };
}
}
谢谢!你可以添加回答'userActionCreators'应该是什么样子? – vitalets
我添加了'userActionsCreators'示例并在'connect'扩展了 –
感谢您的帮助,在中间代码块中,您忘记了从'this.props'中提取'dispatch'。 –