Integrate JWT in SpringBoot to realize Token verification (Additional notes)

Shingai Zivuku
Apr 26 · 1 min read

In the last article, we have integrated JWT in SpringBoot and implemented Token verification. In actual applications, we will find that if each view layer (controller) manually verifies the token, the code will be particularly bloated. This article The article is mainly to solve this problem.

Photo by Mimi Thian on Unsplash

If you are not familiar with the integration of JWT, you can take a look at my previous article: Integrate JWT in SpringBoot to achieve Token verification (Integration)

Custom Annotation

Create custom annotations

We have created an annotation named JwtToken, which has no parameters. An explanation for some of the above annotations:

  • @Target(ElementType.METHOD), Target indicates the scope of the object modified by Annotation, and METHOD is used to describe the method
  • @Retention(RetentionPolicy.RUNTIME), runtime annotation, the annotation is not only saved in the class file but still exists after the JVM loads the class file
  • @Documented, meta-annotation, indicating that this annotation should be recorded by the Javadoc tool

Interceptor

Annotation interceptor

We intercept all request paths starting with api, and if it is annotated with @JwtToken, token information will be verified, thus realizing a custom annotation verification token.

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Shingai Zivuku

Written by

Student • SecOps • Can read and write code

Nerd For Tech

NFT is an Educational Media House. Our mission is to bring the invaluable knowledge and experiences of experts from all over the world to the novice. To know more about us, visit https://www.nerdfortech.org/.