// For typescript import parse, { HTMLReactParserOptions } from "html-react-parser"; import { Element } from "domhandler/lib/node"; export function contentHandler(postContent: string) { const options: HTMLReactParserOptions = { replace: (domNode: Element) => { if (domNode.attribs) { if (domNode.attribs.id === 'shortcode') { return <div className="leadform">Shortcode</div>; } } }, }; return parse(postContent, options); } // Usage: contentHandler("<span>Hello World!</span>")

如果你在字符串中有HTML，我建议使用一个叫做HTML -react-parser的包。

安装

NPM:

npm install html-react-parser

纱:

yarn add html-react-parser

使用

import parse from 'html-react-parser'
const yourHtmlString = '<h1>Hello</h1>'

代码:

<div>
    {parse(yourHtmlString)}
</div>

this.props.match.description是字符串还是对象?如果它是一个字符串，它应该被转换成HTML。例子:

class App extends React.Component {

constructor() {
    super();
    this.state = {
      description: '<h1 style="color:red;">something</h1>'
    }
  }
  
  render() {
    return (
      <div dangerouslySetInnerHTML={{ __html: this.state.description }} />
    );
  }
}

ReactDOM.render(<App />, document.getElementById('root'));

结果:http://codepen.io/ilanus/pen/QKgoLA?editors=1011

但是如果description是<h1 style="color:red;">something</h1> without the quotes "，你会得到:

​Object {
$$typeof: [object Symbol] {},
  _owner: null,
  key: null,
  props: Object {
    children: "something",
    style: "color:red;"
  },
  ref: null,
  type: "h1"
}

如果它是一个字符串，你没有看到任何HTML标记，我看到的唯一问题是错误的标记..

更新

如果你正在处理HTML实体，你需要解码他们之前发送他们到dangerlysetinnerhtml，这就是为什么它被称为“dangerous”:)

工作的例子:

class App extends React.Component {

  constructor() {
    super();
    this.state = {
      description: '<p><strong>Our Opportunity:</strong></p>'
    }
  }

   htmlDecode(input){
    var e = document.createElement('div');
    e.innerHTML = input;
    return e.childNodes.length === 0 ? "" : e.childNodes[0].nodeValue;
  }

  render() {
    return (
      <div dangerouslySetInnerHTML={{ __html: this.htmlDecode(this.state.description) }} />
    );
  }
}

ReactDOM.render(<App />, document.getElementById('root'));

// For typescript import parse, { HTMLReactParserOptions } from "html-react-parser"; import { Element } from "domhandler/lib/node"; export function contentHandler(postContent: string) { const options: HTMLReactParserOptions = { replace: (domNode: Element) => { if (domNode.attribs) { if (domNode.attribs.id === 'shortcode') { return <div className="leadform">Shortcode</div>; } } }, }; return parse(postContent, options); } // Usage: contentHandler("<span>Hello World!</span>")

检查你试图附加到节点的文本是否没有像这样转义:

var prop = {
    match: {
        description: '<h1>Hi there!</h1>'
    }
};

而不是这样:

var prop = {
    match: {
        description: '<h1>Hi there!</h1>'
    }
};

如果转义，您应该从服务器端转换它。

节点为文本，因为已转义

该节点是dom节点，因为没有转义

如果您可以控制{this.props.match.description}，并且您正在使用JSX。我建议不要使用“dangerlysetinnerhtml”。

// In JSX, you can define a html object rather than a string to contain raw HTML
let description = <h1>Hi there!</h1>;

// Here is how you print
return (
    {description}
);