How to display current logged-in user's information in all templates including view managed by WebMvcConfigurerAdapter in Spring Security application

It's quite easy to accomplish this, thanks to a hint from Balaji Krishnan.

Basically, I had to add the Thymeleaf Spring Security integration module to my build.gradle file as follows:

compile("org.thymeleaf.extras:thymeleaf-extras-springsecurity3")

Then in my template I just used the following markup:

<span th:text ="${#authentication.getPrincipal().getUser().getFirstName()}"></span>

When using Spring Security 4 and Thymeleaf 3:

<span th:text="${#authentication.getPrincipal().getUsername()}"></span>

When using Spring boot 2.2.1.

For the maven, Add these lines to the pom.xml

<dependency> <groupId>org.thymeleaf.extras</groupId> <artifactId>thymeleaf-extras-springsecurity5</artifactId> </dependency>

In the thymeleaf

<span th:text="${#authentication.getPrincipal().getUsername()}"></span> <span th:text="${#authentication.getPrincipal().authorities}"></span>

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