react 中渲染html_如何在React中渲染HTML

时间：2025-01-22 14:35:24

react 中渲染html

I had this problem - I needed to add an HTML string in a React application, coming from a WYSIWYG editor, but simply adding {myString} to the JSX was escaping the HTML.. so the HTML tags were displayed to the user!

我遇到了这个问题-我需要在WYSIWYG编辑器中的React应用程序中添加HTML字符串，但是将{myString}添加到JSX就是将HTML转义。.因此，向用户显示了HTML标签！

How did I solve it? I saw 2 solutions, basically. The first native, the second required a library.

我该如何解决？ 我基本上看到了2个解决方案。 第一个本机，第二个本机需要一个库。

第一个解决方案： dangerouslySetInnerHTML使用dangerouslySetInnerHTML (First solution: use dangerouslySetInnerHTML)

You can use the dangerouslySetInnerHTML attribute on an HTML element to add an HTML string inside its content:

您可以在HTML元素上使用dangerouslySetInnerHTML属性在其内容内添加HTML字符串： 

<div
  dangerouslySetInnerHTML={{
    __html: 
  }}></div>

Remember that it’s called dangerously for a reason. HTML is not escaped at all in this case, and it might cause XSS issues.

请记住，它被称为危险是有原因的。 在这种情况下，HTML根本不会转义，这可能会导致XSS问题。

But there are good use cases for this.

但是有很好的用例。

第二种解决方案：使用第三方库 (Second solution: use a 3rd party library)

There are many libraries that implement the functionality that dangerouslySetInnerHTML provides, in a simpler way.

有许多库以更简单的方式实现了dangerouslySetInnerHTML提供的功能。

One of them is the react-html-parser library.

其中之一是react-html-parser库。

See the library on GitHub: /wrakky/react-html-parser

参见GitHub上的库： https : ///wrakky/react-html-parser

Warning: at the time of writing, it’s not been updated in the last 2 years, so things might break in the future. It worked for me.

警告：在撰写本文时，它在过去两年中尚未更新，因此将来可能会中断。 它为我工作。

使用哪一个？ (Which one to use?)

You can look for other similar libraries, but in the end I chose to use the dangerouslySetInnerHTML way.

您可以寻找其他类似的库，但最后我选择使用dangerouslySetInnerHTML方式。

This dangerously-looking name was a built-in reminder to pay attention at correctly whitelisting the HTML tags I allowed the user to enter to that HTML string.

这个看起来很危险的名称是一个内置的提醒，请注意正确将我允许用户输入该HTML字符串HTML标签列入白名单。

翻译自: /how-to-render-html-react/

react 中渲染html

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