我正在尝试使用React和Redux（DVA）构建应用程序。它使用Ant.Design作为主要框架。我试图在用户点击按钮时更改URL，并且显然“绑定”该URL更改为某个操作，这样如果用户直接访问该URL，他就会得到他想要的内容。
目前这就是我所拥有的，在我的组件中的一个函数中。
const { dispatch, match } = this.props;
dispatch(routerRedux.push('/f/' + record.id));
这是我唯一能够制作的东西。它正确地更改了URL，但没有将url与特定行为绑定，使其完全无用。
如何链接带有操作的网址？
答案 0 :(得分：2)
如果您希望基于URL触发操作，则需要使用react-router来路由然后执行所需操作的组件。在这种情况下，最好还是访问其他网址，从浏览器的历史记录中删除操作网址。
典型的路由器定义可能如下所示（取自react-router-redux's docs）：
ReactDOM.render(
<Provider store={store}>
<ConnectedRouter history={history}>
<div>
<Route exact path="/" component={Home}/>
<Route path="/about" component={About}/>
<Route path="/success" component={Success}/>
</div>
</ConnectedRouter>
</Provider>,
document.getElementById('root')
)
因此，您希望添加路径/f/<record-id>。您可以通过添加如下行来执行此操作：
<Route path="/f/:recordId" component={MyActionComponent}/>
现在您需要定义一个将执行操作的组件MyActionComponent。
import { connect } from 'react-redux';
import { replace } from 'react-router-redux';
const mapDispatchToProps = (dispatch: Dispatch) => ({
visitNextLocation: () => dispatch(replace('/success')),
myAction: (recordId) => dispatch(myAction(recordId)),
});
const withDispatch = connect(null, mapDispatchToProps);
class MyActionComponent extends Component {
props: {
match: {
params: {
recordId: string,
}
},
redirectToLogin: () => void,
myAction: string => void,
};
componentWillMount() {
const recordId = this.props.match.params.recordId;
if (recordId) {
this.props.myAction(token);
this.props.visitNextLocation();
}
}
render() {
return null;
}
}
请注意使用replace代替push。这意味着，当用户访问此网址时，他们的操作将会执行，并且他们将以/success结束。但是，如果他们点击“返回”按钮，他们就不会重新访问此网址并再次执行操作。
答案 1 :(得分：0)
出于隐私原因，我无法将代码放在Codepen上。但这是一个摘录：
router.js
...
},
'/users': {
component: dynamicWrapper(app, ['rule'], () => import('../routes/users')),
},
'/f/:userID': {
component: dynamicWrapper(app, ['rule'], () => import('../routes/users')),
},
...
users.js（包含LeftPanel和RightPanel的主要组件）
import React, { PureComponent } from 'react';
import { connect } from 'dva';
import { Row, Col, Card, List, Divider, Badge, Select, Radio, Input, Popover, Button, Table, Spin } from 'antd';
import RightPanel from './RightPanel';
import LeftPanel from './LeftPanel';
import { routerRedux, Route, Switch } from 'dva/router';
import 'font-awesome/css/font-awesome.min.css';
import FadeIn from 'react-fade-in';
@connect(({ rule, loading }) => ({rule, loading: loading.models.rule }))
export default class Users extends React.Component {
constructor(props) {
super(props)
this.state = {
selected_user: [],
defaultView: true,
isLoadingNow: false,
selectedRowKeys: [],
makeEmpty: false,
searchRes: []
}
}
selectRow = (record) => {
const { dispatch, match } = this.props;
dispatch(routerRedux.replace({ pathname: '/f/' + record.id }));
this.setState({isLoadingNow: true, selectedRowKeys: record.key})
setTimeout(() => {
this.setState({
isLoadingNow: false,
defaultView: false,
selected_user: record
})
}, 75)
}
componentDidMount() {
const { dispatch, match } = this.props;
dispatch({
type: 'rule/fetch'
});
if (match.params.userID == undefined) {
// do nothing
} else if (match.params.userID) {
var result = this.props.rule.data.list.filter(function( obj ) {
return obj.id == match.params.userID;
});
this.selectRow.bind(this, result[0])
}
}
render() {
const { selectedRowKeys } = this.state;
const rowSelection = {
selectedRowKeys,
type:"radio"
};
const { rule: { data }, loading } = this.props;
return (<div>
<LeftPanel
rowSelection={rowSelection}
dataSource={this.state.makeEmpty ? this.state.searchRes : this.props.rule.data.list}
selectRow={this.selectRow}
loadingStatus={loading}
/>
<RightPanel
selected_user={this.state.selected_user}
is_default={this.state.defaultView}
loading={this.state.isLoadingNow}
/>
</div>);
}
}
leftPanel.js（负责显示链接列表，用户将在其上单击一个，这将做两件事：
- 相应更改网址
- 在RightPanel.js上显示特定数据）
import React from 'react';
import { Table, Card } from 'antd';
import styles from './index.less';
// import 'font-awesome/css/font-awesome.min.css';
import { Row, Col, List, Divider, Badge, Select, Radio, Input, Popover, Button } from 'antd';
var moment = require('moment');
class LeftPanel extends React.Component {
constructor(props) {
super(props)
this.state = {
selected_row_index: undefined
}
}
handleChangeStyleOnSelectRow(index) {
this.setState({
selected_row_index: index
}, console.log(this.state.selected_row_index))
}
prettifyForTable(raw_data) {
var prettyRows = [];
raw_data.map((item,index) =>
prettyRows.push(
<div style={{"width": "100%"}}>
<Row style={{ "align-items": "center"}} type="flex" justify="space-between">
<Col span={10}>
<div style={{"font-size": "15px", "text-align": "center"}}>
{item.user_name} <i style={{"color": "rgba(0, 0, 0, 0.25)", "margin": "0 10px", "transform": "rotate(45deg)"}} className="fa fa-plane"> </i> {item.user_age}
<div style={{"font-size": "12px", "color": "grey"}}> {moment(item.user_color).format('HH:MM')} · {moment(item.user_order).format('HH:MM')} </div>
</div>
</Col>
<Col span={3}>
<div style={{"text-align": "right", "text-align": "center"}}>
{item.user_family}
</div>
</Col>
<Col span={6}>
<div style={{"text-align": "right", "text-align": "center"}}>
{moment(item.user_height).format('MMMM D')}
</div>
</Col>
<Col span={3}>
<div style={{"text-align": "center"}}>
{(item.status == "in_progress") ? <div> <Badge style={{"padding-right": "25px"}} status="processing"/></div> : <div style={{"text-align": "center"}}> <Badge style={{"padding-right": "25px"}} status="default"/></div>}
</div>
</Col>
</Row>
</div>
)
);
return prettyRows;
}
render() {
const stylesSelectedRow = { "background": "rgba(155,155,155,0.05)", "box-shadow": "0 0 5px 0 #4A90E2", "transform": "scale(1.01)"};
const { dataSource } = this.props;
return(
<div>
{dataSource &&
<Card bordered={false} loading={this.props.loadingStatus} className={styles.userRows} bodyStyle={{"padding": "0 15px"}}>
<List
size="small"
bordered={false}
dataSource={this.prettifyForTable(dataSource)}
renderItem={(item, index) => (<List.Item onClick={() => {this.state.selected_row_index == index ? null : this.props.selectRow(this.props.dataSource[index]); this.handleChangeStyleOnSelectRow(index)}} style={this.state.selected_row_index == index ? stylesSelectedRow : null} className={styles.userRows}>{item}</List.Item>)}
/>
</Card>
}
</div>
)
}
}
export default LeftPanel;
最后是RightPanel.js，用于侦听URL或点击LeftPanel，并相应地显示数据。
import React, { Component } from 'react';
import ReactDOM from 'react-dom';
import infopng from '../../../assets/info.svg';
import TabInformations from './TabInformations.js';
import TabFamily from './TabFamily.js';
import TabProblems from './TabProblems.js';
import { Tabs, Button, Spin, Icon, Table, Pagination, Card, Col, Row, Spinner, Badge } from 'antd';
const TabPane = Tabs.TabPane;
import 'font-awesome/css/font-awesome.min.css';
import WindowSizeListener from 'react-window-size-listener'
import FadeIn from 'react-fade-in';
export default class RightPanel extends Component {
render() {
if (this.props.loading) {
return(
<div>
<Spin
indicator={<Icon type="loading" style={{ fontSize: 24 }} spin />}
src="http://web.gndu.ac.in/DepartmentProfile/images/spinner.gif"
/>
</div>
);
} else if (this.props.is_default) {
return(
<div style={{"margin-top": "64px", "margin-right": "10px", "text-align": "center", "height": "90vh", "display": "flex", "align-items": "center", "justify-content": "center"}}>
<div>
<img src={infopng} style={{"height": "155px"}} />
<p style={{"color": "#8e8e8e"}}> select a user on the <br/> left-hand side... </p>
</div>
</div>
);
} else {
return (
<FadeIn>
<Card bodyStyle={{"padding": "0"}} style={{"background-color": "white", "height":"90vh", "padding": "20px", "box-shadow": "rgba(0, 21, 41, 0.1) 0px 0px 6px", "opacity": "1", "transition": "background 0.6s", "border-radius": "2px", "margin": "10px 10px 0 0px", "margin-top": "64px"}}>
<Tabs defaultActiveKey="1" style={{"text-align": "center", "padding": "0 15px"}}>
<TabPane tab="General" key="1">
<TabInformations
selected_user={this.props.selected_user}
/>
</TabPane>
<TabPane tab="Servicing" key="2">
<TabFamily
selected_user={this.props.selected_user}
/>
</TabPane>
<TabPane tab={<div>Defect(s)<Badge showZero count={0} style={{ backgroundColor: '#fff', color: '#999', boxShadow: '0 0 0 1px #d9d9d9 inset', "margin-left": "10px" }} /></div>} key="3">
<TabProblems />
</TabPane>
</Tabs>
</Card>
</FadeIn>
);
}
}
}
此代码完成初始工作：当用户单击leftPanel.js上的链接时，leftPanel.js调用users.js中的方法selectRow，后者又选择一行并显示在RightPanel.js。
我的问题：如何添加到用户点击时更改网址的事实？显然，如果用户在Chrome中点击“返回”，则RightPanel.js中的数据必须相应更改。？