小编svn*_*vav的帖子

有没有办法实现这样的事情:

d3.select("any-tag").append(<ReactComponent/>)

我在实现 react cookies v^2 时遇到问题。我使用 webpack-dev-server 进行测试。
这是一个结束日志：

警告：失败的上下文类型：上下文cookies在 中标记为必需withCookies(App)，但其值为undefined。 在 Provider
中的 withCookies(App)

/App.jsx：

import React, { Component } from 'react';
import { CookiesProvider, withCookies, Cookies} from 'react-cookie'
import {Route, Switch, BrowserRouter} from 'react-router-dom';

//import RequireAuth from './RequireAuth';
import NotFoundPage from './NotFoundPage';
import LandingPage from './LandindPage';
import WorkSpace from './WorkSpace';
import ActivationPage from './ActivationPage';

class App extends Component {
  render() {
    return (
      <CookiesProvider>
        <BrowserRouter>
          <Switch>
            <Route exact={true} path="/" component={LandingPage}/>
            <Route path="/workspace" component={WorkSpace}/> …

我尝试使用redux-form在react-redux上实现文件上传，但是控制台中有警告和异常：

警告：ConnectedField正在更改要控制的类型文件的不受控制的输入。输入元素不应从不受控制切换为受控制（反之亦然）。确定在组件的使用寿命期间使用受控或不受控制的输入元素。

bundle.js:37467 Uncaught DOMException: Failed to set the 'value' property on 
'HTMLInputElement': This input element accepts a filename, which may only be 
programmatically set to the empty string.
        at Object.updateWrapper (http://localhost:8080/dist/bundle.js:37467:20)
        at ReactDOMComponent.updateComponent (http://localhost:8080/dist/bundle.js:36891:23)
        at ReactDOMComponent.receiveComponent (http://localhost:8080/dist/bundle.js:36846:10)
        at Object.receiveComponent (http://localhost:8080/dist/bundle.js:6247:22)
        at ReactCompositeComponentWrapper._updateRenderedComponent (http://localhost:8080/dist/bundle.js:35859:23)
        at ReactCompositeComponentWrapper._performComponentUpdate (http://localhost:8080/dist/bundle.js:35829:10)
        at ReactCompositeComponentWrapper.updateComponent (http://localhost:8080/dist/bundle.js:35750:12)
        at ReactCompositeComponentWrapper.receiveComponent (http://localhost:8080/dist/bundle.js:35652:10)
        at Object.receiveComponent (http://localhost:8080/dist/bundle.js:6247:22)
        at ReactCompositeComponentWrapper._updateRenderedComponent (http://localhost:8080/dist/bundle.js:35859:23)

这是我组件的代码：

import React,{Component} from 'react';
import {Field, reduxForm} from 'redux-form';

class UploadFileForm extends Component {

  onFormSubmit(data) {
    console.log(data);
  };

  render() { …