React组件未使用React Router

时间:2017-08-01 00:39:31

标签: javascript reactjs react-router-v4

我在跟踪路线后没有渲染的组件时遇到了一些问题。路由在父组件Drawings中创建,并向Drawing组件发送一些道具。

当我单击链接时,我会找到正确的路径,例如/drawing/20170724,并且render函数中的日志语句会运行。我也得到道具,到目前为止一切都很好。但是,返回并不会发生,因此我需要的HTML不可用。

这里是Drawings,其中创建了路线和链接:

import React, { Component } from "react";
import { Route, Link } from "react-router-dom";
import AnimatedWrapper from "../modules/AnimatedWrapper";

import Drawing from '../components/Drawing';

class DrawingsComponent extends Component {
  render() {
    const drawings = this.props.drawings;
    const drawingsMap = this.props.drawingsMap;

    return(
      <div>
        <div className="page">
          <div className="drawings-list">
            {
              drawings.map((drawing) => {
               return(
                <Link to={`/drawing/${drawing.date}`} key={drawing.date}>
                  <div className="drawing-thumb">
                    <h2>{drawing.date}</h2>
                  </div>
                </Link>
                )
              })
            }
          </div>
          {
          Object.keys(drawingsMap).map((d, i) => {
            return <Route path={`/drawing/${drawings[i].date}`} render={(props) => (<Drawing drawingPkg={drawingsMap[d]} drawingInfo={drawings[i]} {...props} />)} key={`${drawings[i].date}`}/>
          })}
        </div>
      </div>
    )
  }
}

const Drawings = AnimatedWrapper(DrawingsComponent);
export default Drawings;

这是Drawing

import React, { Component } from 'react';
import AnimatedWrapper from "../modules/AnimatedWrapper";

class DrawingComponent extends Component {
    render() {
        const drawing = this.props.drawingPkg;
        const drawingInfo = this.props.drawingInfo;

        console.log('gonna draw now');

        return(
            <div className="drawing">
                <h2 className="drawing-title">{drawingInfo.title}</h2>
                <canvas></canvas>
            </div>
        )
    }
}

const Drawing = AnimatedWrapper(DrawingComponent);
export default Drawing;

我无法弄清楚绘图组件为什么不返回。

1 个答案:

答案 0 :(得分:1)

你在做什么是错的。单击链接时更改URL。然后你必须给路由配置,告诉反应路由器在url更改时呈现哪个组件。在index.js文件中应该是这样的。

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

import reducers from './reducers';
import Drawing './components/drawing_component';


const createStoreWithMiddleware = applyMiddleware(promise)(createStore);

ReactDOM.render(
  <Provider store={createStoreWithMiddleware(reducers)}>
    <BrowserRouter>
      <div>
        <Switch>
            <Route path="/drawings/:date" component={Drawing} />
            <Route path="/" component={IndexComponent} />
        </Switch>
      </div>
    </BrowserRouter>
  </Provider>
  , document.querySelector('.container'));

我认为这里的错误是您的路线配置。我从来没有见过像你那样的路线配置。

然后编写一个单独的Drawing组件,该组件呈现给定的drawing实例。

通过此更改,您的链接应该是这样的。

<Link to={`/drawing/${drawing.date}`}>
  {drawing.date}
</Link>

底线是这个。在这里你给一些带有超链接的文字。点击此路由器后,立即更改网址。然后它使用router config来呈现相关组件。

希望这会有所帮助。快乐的编码!