Question

下式给出：

App.jsx＆gt; Welcome.js＆gt; WorkPlacePage.js

如何将道具传递给WorkPlacePage.js，以便在WorkPlacePage.js中，我可以这样做：this.props.history.push()

我现在尝试传递道具但是当我在console.log时，历史记录在控制台中输出为未定义。谢谢你的帮助！

App.jsx：

import Welcome from '../containers/welcome/Welcome';

const App = ({store}) => {
  return (
    <StoreProvider store={store}>
      <ConnectedRouter history={history}>
        <Switch>
          <PrivateRoute exact path="/welcome" layout={MainLayout} component={Welcome} />
          <WithMainLayout exact path="/" component={Home} />
          <AuthRoutes path={`/${clientResourceName}`} wrapper={WithMainLayout} />
          <WithMainLayout component={NotFound} />
        </Switch>
      </ConnectedRouter>
    </StoreProvider>
  );
};

Welcome.js

import React from 'react';
import WorkPlacePage from '../../components/welcome/WorkPlacePage';

class Welcome extends React.Component {

  constructor(props) {
    super(props);
    this.state = {
      step: 1
    };
  }

  showStep() {
    const {history} = this.props

    console.log('showStep');
    console.log({history})

    switch (this.state.step) {
      case 1:
        return <WorkPlacePage history={history} />
      default:
        return (
          <div>
            <h1>Case: Default</h1>
          </div>
        );
    }
  }

  render() {
    var style = {
      width : (this.state.step / 4 * 100) + '%'
    }
    return (
      <main>
        <span className="progress-step">Step {this.state.step}</span>
        <progress className="progress" style={style}></progress>
        {this.showStep()}
      </main>
    )
  }
}

export default Welcome;

WorkPlacePage.js

import React from 'react';
import {connect} from 'react-redux';
import {bindActionCreators} from 'redux';

class WorkPlacePage extends React.Component {

  render() {

    console.log('this.props.history')
    console.log(this.props.history)

    return (
      <div>
        <h1>Workplace</h1>
        <span>
        survey things
        <button onClick={() => this.props.history.push("/confirmation")}>next page</button>
        </span>
      </div>
    );
  }
}

export default WorkPlacePage;

**更新 - **

"react": "^15.5.4",
"react-apollo": "^1.1.2",
"react-devise": "^0.0.6",
"react-devise-material-ui": "^0.0.1",
"react-dom": "^15.5.4",
"react-redux": "^5.0.4",
"react-router-dom": "^4.1.1",
"react-router-redux": "^5.0.0-alpha.6",

Answer 1

有一个由 react-router-redux 导出的推送功能。

您可以编写一个动作创建器，您可以在其中调用push函数：

import { push } from 'react-router-redux'

function goTo(pathname) {
    push({ pathname })
}

点击按钮，只需发送此 goTo 操作即可。它将自己处理历史。

请记住在创建商店时添加这些行。

import { routerMiddleware } from 'react-router-redux'
import { browserHistory } from 'react-router'

const middleware = applyMiddleware(
  ...
  routerMiddleware(browserHistory),
);

const store = createStore(
  ...
  applyMiddleware(middleware)
)

希望它有所帮助。

如何将道具传递给子React组件？

1 个答案: