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This article will explain in detail how to analyze Freemarker null handling and default values, the content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

The output null value in FreeMarker will report an error, and if you want nothing to be displayed and no error reported when the object is null, you can deal with ${mouse!} ${user.username!} ${(user.username)!} (the last way to avoid errors caused by the user object being null).

If you want the object to be null, you can display a default value of ${mouse! "No mouse"} ${username! "anonymous user"}.

On how to analyze the Freemarker null value handling and default values to share here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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