Reactjs 将 iframe 插入react组件

发布于11月25日

我有个小问题.从服务请求数据后，我得到了一个iframe代码作为响应.

<iframe src="https://www.example.com/show?data..." width="540" height="450"></iframe>

我想把它作为props 传递给我的模态组件并显示它，但当我在渲染函数中简单地将其设置为{this.props.iframe}时，它显然是将其显示为字符串.

What is the best way to display it as html in react or using JSX?

推荐答案

你可以使用财产dangerouslySetInnerHTML，就像这样

const Component = React.createClass({
  iframe: function () {
    return {
      __html: this.props.iframe
    }
  },

  render: function() {
    return (
      <div>
        <div dangerouslySetInnerHTML={ this.iframe() } />
      </div>
    );
  }
});

const iframe = '<iframe src="https://www.example.com/show?data..." width="540" height="450"></iframe>'; 

ReactDOM.render(
  <Component iframe={iframe} />,
  document.getElementById('container')
);

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="container"></div>

此外，您可以从包含<iframe>个标记的string(based on the question, you get iframe as a string from a server)中复制所有属性，并将其传递给新的<iframe>标记，如下所示

/**
 * getAttrs
 * returns all attributes from TAG string
 * @return Object
 */
const getAttrs = (iframeTag) => {
  var doc = document.createElement('div');
  doc.innerHTML = iframeTag;

  const iframe = doc.getElementsByTagName('iframe')[0];
  return [].slice
    .call(iframe.attributes)
    .reduce((attrs, element) => {
      attrs[element.name] = element.value;
      return attrs;
    }, {});
}

const Component = React.createClass({
  render: function() {
    return (
      <div>
        <iframe {...getAttrs(this.props.iframe) } />
      </div>
    );
  }
});

const iframe = '<iframe src="https://www.example.com/show?data..." width="540" height="450"></iframe>'; 

ReactDOM.render(
  <Component iframe={iframe} />,
  document.getElementById('container')
);

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="container"><div>