我有一组反应组件，我试图在Angular 2应用程序中使用它们。
这是我尝试使用的主要反应组件
import React, {Component} from 'react';
import { createStore, applyMiddleware } from 'redux';
import { Provider } from 'react-redux';
import configureStore from './store/configureStore';
import MyCardContainer from './containers/MyCardContainer';
import './assets/style/main.css';
export default class MyCard extends Component {
constructor(props){
super(props);
}
componentWillMount(){
}
render(){
if(this.props.param1 && this.props.param2) {
return (
<Provider store={configureStore()}>
<MyCardContainer param1={this.props.param1} param2={this.props.param2} key='container'/>
</Provider>
)
}
else{
return(
<div>
Invalid Params are provided for MyCard Component !!
</div>
)
}
}
}
现在在我的角度项目中，我有以下文件。
app.module.ts
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { MyCardHostComponent } from './mycardhost.component';
@NgModule({
declarations: [
AppComponent,
MyCardHostComponent
],
imports: [
BrowserModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
app.component.ts
import { Component } from '@angular/core';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
title = 'app';
}
app.component.html
<div style="text-align:center">
<h1>
Welcome to React Components Usage Page
</h1>
<div>
<my-card-host></my-card-host>
</div>
<div id="my-card"></div>
</div>
和mycardhost.component.ts
我尝试了OnInit和AfterContentInit。我在给定时间只有一个活跃。最初在模板中我没有id为“my-card”的div（我在
中）
import {Component, ViewChild,ElementRef,AfterContentInit} from '@angular/core';
import {MyCard} from './MyCard';
@Component({
selector: 'my-card-host',
templateUrl:"./mycardhost.component.html"
})
export class MyCardHostComponent implements OnInit, AfterContentInit{
@ViewChild('my-card') myCard: ElementRef;
ngOnInit(){
// MyCard.initialize("param1val","param2val",document.getElementById("my-card"));
}
ngAfterContentInit(){
MyCard.initialize("param1val","param2val",this.myCard.nativeElement);
}
}
和mycardhost.component.html的模板文件，其中div标签的ID为“my-card”，其中将加载React组件。
<div id="my-card"></div>
当我运行应用程序时，React Store和Reducers正在初始化。我怎么得到以下错误：这表明我传递的document.getElementById（）不是有效的DOM元素。
我尝试在Angular Components中添加断点，但没有一个被执行。不知道我做错了什么。非常感谢任何帮助。
Uncaught ZoneAwareError {__zone_symbol__error: Error: _registerComponent(...): Target container is not a DOM element.
at invariant (eval at <an…, …}
Target container is not a DOM element. at invariant (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:39:15) [<root>] at Object._registerComponent (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:447:200) [<root>] at Object._renderNewRootComponent (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:470:34) [<root>] at Object.wrapper [as _renderNewRootComponent] (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:66:21) [<root>] at Object._renderSubtreeIntoContainer (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:550:32) [<root>] at render (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:570:23) [<root>] at wrapper (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:66:21) [<root>] at eval (eval at <anonymous> (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1)), <anonymous>:54:22) [<root>] at Object.eval (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1), <anonymous>:607:2) [<root>] at __webpack_require__ (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1), <anonymous>:557:30) [<root>] at fn (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1), <anonymous>:88:20) [<root>] at Object.eval (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1), <anonymous>:588:19) [<root>] at __webpack_require__ (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1), <anonymous>:557:30) [<root>] at eval (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1), <anonymous>:580:37) [<root>] at eval (eval at <anonymous> (http://localhost:8080/js/app.js:1873:1), <anonymous>:583:10) [<root>] at Object.<anonymous> (http://localhost:8080/js/app.js:1873:1) [<root>] at __webpack_require__ (http://localhost:8080/js/polyfills.js:53:30) [<root>] at eval (eval at <anonymous> (http://localhost:8080/js/app.js:732:1), <anonymous>:8:27) [<root>] at Object.<anonymous> (http://localhost:8080/js/app.js:732:1) [<root>] at __webpack_require__ (http://localhost:8080/js/polyfills.js:53:30) [<root>] at eval (eval at <anonymous> (http://localhost:8080/js/app.js:760:1), <anonymous>:7:17) [<root>] at Object.<anonymous> (http://localhost:8080/js/app.js:760:1) [<root>] at __webpack_require__ (http://localhost:8080/js/polyfills.js:53:30) [<root>] at eval (eval at <anonymous> (http://localhost:8080/js/app.js:746:1), <anonymous>:13:31) [<root>] at Object.<anonymous> (http://localhost:8080/js/app.js:746:1) [<root>] at __webpack_require__ (http://localhost:8080/js/polyfills.js:53:30) [<root>] at eval (eval at <anonymous> (http://localhost:8080/js/app.js:712:1), <anonymous>:5:20) [<root>] at Object.<anonymous> (http://localhost:8080/js/app.js:712:1) [<root>] at __webpack_require__ (http://localhost:8080/js/polyfills.js:53:30) [<root>] at Object.<anonymous> (http://localhost:8080/js/app.js:1880:18) [<root>] at __webpack_require__ (http://localhost:8080/js/polyfills.js:53:30) [<root>] at webpackJsonpCallback (http://localhost:8080/js/polyfills.js:24:23) [<root>] at http://localhost:8080/js/app.js:1:1 [<root>]
__zone_symbol__name
:
"Invariant Violation"
答案 0 :(得分：2)
最后，我能够解决问题。
我需要改变的是我导入组件的方式。
我不得不改变以下行
从my-components-react＆＃39;;
导入MyCard到
从my-components-react / es / MyCard＆＃39;中导入MyCard;
由于