一种选择是将您的单一用途表单绑定到它们的操作connect
。由于<LoginComponent />
通常总是做完全相同的事情,您可以像这样使用它:
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
自动绑定动作创建者并单独提供dispatch
to props
,所以如果要更明确一点,上例同
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);
供参考,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 };
}
}