Question

我在我的项目中使用react-router v4.2.2，并尝试创建一组卡片，每个卡片链接到其他组件。现在我只是通过将每张卡路由到一个名为＆＃39; Project1＆＃39;的特定组件来测试路由器的工作原理。然而，这不起作用;我没有看到Project1组件中的div弹出。我究竟做错了什么？？不应该将每个Card链接到Project1组件吗？

以下是持有卡片的主要容器的代码：

import React from 'react';
import { connect } from 'react-redux';
import { Link } from 'react-router-dom';
import ProjectCard from '../components/project_card.js';
import Project1 from '../components/project1.js';

class ProjectCards extends React.Component {
    render() {
        var projectCards = this.props.projects.map((project, i) => {
            return (
                <div key={i}>
                    <Link to={`/${project.title}`}>
                        <ProjectCard title={project.title} date={project.date} focus={project.focus}/>
                    </Link>
                </div>
            );
        });
        return (
            <div>{projectCards}</div>
        );
    }
}

function mapStateToProps(state) {
    return {
        projects: state.projects
    };
}

export default connect(mapStateToProps)(ProjectCards);

以下是Routes容器的代码：

import React from 'react';
import Project1 from '../components/project1.js';
import { connect } from 'react-redux';
import { Route, Switch } from 'react-router-dom';

class Routes extends React.Component{
    render() {
        var createRoutes = this.props.projects.map((project, i) => {
            return <Route key={i} exact path={`/${project.title}`} component={Project1}/>
        });
        return (
            <Switch>
                {createRoutes}
            </Switch>
        );
    }
}

function mapStateToProps(state) {
    return {
        projects: state.projects
    };
}

export default connect(mapStateToProps)(Routes);

以下是index.js的代码：

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import { applyMiddleware, createStore } from 'redux';
import ReduxPromise from 'redux-promise';
import { BrowserRouter } from 'react-router-dom';

import App from './components/App.jsx';
import css from '../style/style.css';
import style from '../style/style.css';
import reducers from './reducers';

const createStoreWithMiddleware = applyMiddleware(ReduxPromise)(createStore);

ReactDOM.render(
    <Provider store={createStoreWithMiddleware(reducers)}>
        <BrowserRouter>
            <App />
        </BrowserRouter>
    </Provider>
, document.getElementById('root'));

和Project1的代码，单击卡片时应显示该代码：

import React from 'react';

const Project1 = () => {
    return (
        <div>hello there this is Project1</div>
    );
}

export default Project1;

Answer 1

单击链接时，导航到Project1，其中没有定义路由。当你舔它时，你基本上会破坏你的路线，因为Switch与Link在同一个组件中。需要将Switch语句移动到第3个组件，以便在单击链接卡后它仍然存在。

React-Router v4.2.2无法正常工作（我认为我在Route标签中做错了什么？）

1 个答案: