Spring security get current user in service. In the process of interacting .

Spring security get current user in service. Feb 10, 2022 · Today we have summarized the various ways how to get the current user in Spring Security, each of them has slightly different scenarios, you can choose the most suitable scenario for your application based on these listings. Understanding how to get user details is crucial for implementing personalized experiences and securing your applications, making it a Mar 23, 2021 · Learn how to access the currently logged-in user's data in a Spring Boot Thymeleaf application. I was searching how to do it, but nothing. Jan 8, 2024 · Learn how to programmatically set the authenticated user in Spring Security and Spring MVC. I first thought I could easily do that in a filter with SecurityContextHolder. And in Spring MVC, the controller can have access to the principal simply by passing it as a parameter. I am relatively new to Spring and Spring security. com/in/teddy-smith-015ba61a3/Website: https://www. The currently authenticated user is available through a number of different mechanisms in Spring. As Spring Security aims to operate in a self-contained manner, there is no need to place any special configuration files into your Java Runtime Environment. How can I have access to that list? Aren't they already kept somewhere wit Spring Security : How to get current logged in user details? Guys I am new to learning Spring Framework and currently making a small web application. I tried to get that using Spring security way using SecurityContextHolder. With first class support for securing both imperative and reactive applications, it is the de-facto standard for securing Spring-based applications. in SecurityContextHolder Internally stores detailed information of the subject currently interacting with the application. xml shuld like: <security:http auto-config='true'> Mar 21, 2019 · I am a new auth0 user and had the same issue, trying to get some User information in the Spring Controller. 0 Runtime Environment or higher. He also has a YouTube playlist here. In order to calculate the fines for the issued books according to the roles i wan the current user role after borrowing a book. For example I am trying to add user to one class Aug 28, 2017 · 2 If you want to get the username of the current user authenticated with Spring Security, you could use the following: final String currentUserName = SecurityContextHolder. core. Jan 29, 2024 · Learn how to display the logged-in user's information in Thymeleaf using Spring Security's support in a Spring Boot application. User class to create a custom user object. lang. I want to achieve something that, in Spring, I would do with SecurityContextHolder. getAuthentication(). userdetails. May 29, 2017 · By default, the Spring Security Authentication object is stored in a ThreadLocal on a per- Thread basis. currentUser Jun 22, 2024 · When working with a Spring Boot application using OAuth 2. I am hard-coding users since I only n Spring Boot Security - UserDetailsService & UserDetailsLinkedin: https://www. It is responsible for retrieving user information from a backend data source, such as a database or an external service, and returning an instance of the UserDetails interface. May 19, 2022 · 0 To get username/user info in Spring OAuth2 Resource Server, please try the below: Make sure to configure resource server in the Authorization Server too. To get user info by token, resource server provides a filter OAuth2AuthenticationProcessingFilter The generated token is set into SecurityContextHolder. html", method= Oct 30, 2008 · You will get null if user is authenticated anonymously (http > anonymous elements in Spring Security XML). getAuthentication() . Learn how to access the currently logged-in user object in Spring Security, including detailed code examples and common pitfalls. These are stored in the Security Context of Spring Security. Current user name, role book_id and fine will be stored in other table. getContext(); This does not work when working with reactive programming, and Mon Here I am getting which user has logged in and also I'm retrieving their roles, as defined in my spring-security. I want to get the current logged in user details (specifically username) and use it in my jsp page. In this article, we will discuss different ways to retrieve the currently logged-in user details in Spring Security. (Using getAllPrincipals , getAllSessions and getSessionInformation) The question is, how can I have access to current users' IPs? Consider we have to give service to a known region only. Jul 24, 2023 · We'll see which security elements are deprecated and the newer, more secure options available. For password-based authentiction, getName() returns user's Mar 9, 2018 · Above code block shows me valid tokens whose client id is clientIdPassword, but I want to get only current logged user object. NullPointerException, which was caused by: Cannot get property 'principal' on null object. Principal; SecurityContextHolder. The problem is I cannot get user's extra fields (which means user information on database except username, password, e Mar 4, 2023 · Learn how to use AzureAD with Spring Security to authenticate users, including the required configuration steps for a demo application. Spring Security uses an Authentication object to describe the relevant information of the current user. This can be useful to enable or disable particular features in our applications. Is there a way to get the ID of the current user? SecurityContextHolder. In my webapp I need to get the current user's username and password to further authenticate them against another service. IDE: Such as IntelliJ IDEA, Eclipse, or Spring Tool Suite. Spring Security provides in-memory, JDBC, and caching implementations of UserDetailsService. I use Spring Security. Jun 27, 2020 · Here we have hardcoded logged in user for simplicity, but if you use Spring Security you can use the below class to get current logged in user. Feb 21, 2018 · How to get the current logged-in Username in Spring Security Here is the code to get the security context in Spring security and obtain the name of the currently logged in user: Jun 24, 2011 · I am using the spring-security-core plugin in my grails app. Of course May 2, 2023 · A quick guide to track logged in users in an application built using Spring Security. Get the user's authentication information in Springsecurity, you can implement it as follows: Authentication authentication = SecurityContextHolder. when the app starts, I need to somehow initialize the current logged in user into the controller. You can use the following code block anywhere in the application to get the Nov 20, 2021 · Usually while working with Spring Boot, a common way to get currently logged users is to use: SecurityContextHolder. How do I get the authenticated user from within my controllers? Spring Security is a powerful and highly customizable authentication and access-control framework. SecurityContextHolder. Spring Security is a framework that provides authentication, authorization, and protection against common attacks. security. Jul 2, 2019 · If Spring Security is configured for an OAuth 2. What SecurityContextHolder holds is the SecurityContext of the current user, and SecurityContext holds a reference to Authentication representing the relevant information of the current user. Spring Security uses specific classes for web and method security as the root object to provide built-in expressions and access to values, such as the current return modelAndView; } Does Spring Security offer an easy way for me to store the User object into the session so it can be easily retrieved by any controller method? I want to avoid performing a DB lookup each time: // Lookup user in database by e-mail User user = userService. 2. Mar 18, 2021 · I have been trying to get user info from the current session to do some findByUsername like operations. 1. All I can understand right now that my spring-security. I am trying to get the current logged in username using Spring's security but the Principal object returns null. I can log in and log out, I can get logged user name for example like this: String userName = (( Jun 14, 2022 · If you want to get the login user information in Spring Security, you can’t get it in a child thread, only in the current thread. xml file - e. 1 and demonstrating how to retrieve authenticated user information. I have a table in my database which contains user information. I want to get current user in service layer I tried the following code but get null pointer exception @Service public class MyService{ @Autowired TodoRepository todoRepository; public void exec Retrieving user information in a Spring Security application is essential for many functionalities such as personalizing user experiences, auditing, and logging activities. getCurrentUser() //where "User" is is user domain class or you can "def" also } } } user will hold your current logged in user object. I am trying to display the logged-in user's first name and last name in a template when the controller is managed Dec 18, 2021 · A quick guide to to create a custom database-backed UserDetailsService for authentication with Spring Security. RELEASE. 05. I am letting header parameter flow till client service (inventory) by configuring zuul. In this tutorial, we’ll explore how to authorize requests for specific URLs and HTTP methods using Spring Security. I want to get current logged user in controllers using @AuthenticationPrincipal annotation. getAuthentication(); ```' ###### Specific code execution Code in the Controller layer ```java /** * Get login user information? Mar 4, 2023 · Learn how to use AzureAD with Spring Security to authenticate users, including the required configuration steps for a demo application. 0. Oct 30, 2020 · I don't want to find users by ID (like JPA query). I need to know the current user's role in a controller action. 1 Runtime Environment Spring Security 3. Feb 29, 2012 · I'm using spring-security with HTTP Basic Auth to secure a java webapp. HttpSession in Spring Boot The HttpSession interface provided by the Servlet API allows developers to store and retrieve information about a user's session between HTTP requests. I found that i can take only username and Oct 16, 2019 · I'm working with spring-security and spring-security-saml2-service-provider with versions 5. Expressions are evaluated with a “root object” as part of the evaluation context. 3k 6 44 56 Apr 24, 2014 · Sure does, but another angle on the question; is there ever a need to explicitly load the user as in the first line, rather than just retrieving through the spring service. getPrincipal(); but it returns me a String Jan 27, 2020 · I have loaded the roles from the database for the current user. Then you can display email, username, first name, last name, full name, assigned roles, any user’s information in the view (using Thymeleaf); and also get the UserDetails object in a handler method of a Spring controller. [role1 , role2]. getPrincipal(); } SecurityContextHolder is a part of Spring Security. I would like to print username of currently logged in user,how can I fetch UserDetails in my Controller? @RequestMapping (value="/index. Following the answer of this question, I tried: public Optional<String> Mar 28, 2018 · So using default UserDetailsService you will get spring security's User object which contains basic user information like username, password etc. Name ()) w Aug 14, 2015 · I'm using Spring Security 3 and Spring MVC 3. Particularly if those Jul 2, 2020 · I want to implement this example using Keyclock server with Spring Security 5. com/basarbk/spring-sec Apr 19, 2022 · 3 I need to do access to the current user (previously set up by a ContainerRequestFilter) in a static way, to avoid the passage of the @Context SecurityContext in every method of every controller. I'd like to allow users to get access only to their own records. In the initial comment (To get userInfo from token springboot) @Account123 mentions adding user info information to the token via a Rule. getAuthentication() contains the username of the current user, but I prefer identify users with the ID in case I want to require that each email be unique instead of the username, or get rid of usernames altogether. Aug 17, 2017 · I am using Spring security in my project and Thymeleaf view. I'm going to use OAuth2. properties file of the authserver app. ioGithub: The UserDetailsService instance can be defined either by using an available namespace element (jdbc-user-service or by using the user-service-ref attribute to point to a bean defined elsewhere in the application context). getAuthentication(); The authentication instance now provides the following methods: Get the username of the logged in user: getPrincipal() Get the password of the Jan 27, 2020 · The @CurrentSecurityContext annotation in Spring Security simplifies accessing security context values, reducing boilerplate code and enhancing application development. From this class I can have list of authenticated users and some session information. linkedin. However, I get java. id) over def user = springSecurityService. Principal) Spring Security Sep 8, 2014 · Spring Security is able to put the Authentification in the request where it can be retrieved with HttpServletRequest. Nov 20, 2015 · So it should work fine. Apr 1, 2020 · I need take all data of the current user which is logged in and send it in JSON format into the route "/home". getAuthentication(); but it returns anonymous user. I'm trying after authentication by IDP to obtain the current Assertion in order to map it to a Sep 5, 2017 · Hi I am trying out Spring Security Core with Grails and trying to get the current logged in user. Apr 19, 2014 · User activeUser = (User) ((Authentication) principal). Mar 12, 2021 · As far as I remember when you are using Spring Security you do not need a controller - a UsernamePasswordAuthenticationFilter is registered in the security filter chain and does the authentication job. Can anyone suggest a workaround. 2 application with Spring Security 6. However, the SecurityContextHolder actually defines three storage policies. In inventory where I need current user, there is no security configured. Aug 7, 2018 · I highly recommend Chapters 16 and 17 of Spring Security in Action by Laurențiu Spilcă (2020). In order to have access to the app, it is necessary to login, I want to know what is the ID of the logged user. 0 and OIDC (OpenID Connect protocol) you might need at some point to access the tokens of the logged in user. I am able to access the Claims from the token using this code. For audit purposes, I would like to log all the user for all API requests. How to Get Current Logged-on User Details: The main focus will be on the step-by-step process of fetching Current Logged-on User Details using the latest SAP Cloud Security 3 Library in Java 17 and SpringBoot 17 applications. Aug 17, 2015 · The article shows how to get the user information in a Spring application, starting with the common static access mechanism, followed by several better ways to inject the principal. But according to your requirement, you are only interested in username, so you can try this: @RequestMapping(value ="/cities") public List<RandomCity> getCitiesAndLogWhoIsRequesting(Authentication authentication){ Mar 30, 2025 · In this article, we will explore how to retrieve user information using Spring Security, including proper heading formatting and relevant code examples. In the process of interacting Mar 26, 2025 · In Spring Security, sometimes it is necessary to check if an authenticated user has a specific role. Aug 12, 2012 · In Spring Security, the current sessions are stored in SessionRegistry. However, you retrieve it through the security context which is bound to the current thread and as such, it's also bound to the current request and its session. Sep 12, 2024 · Conclusion The SecurityContextHolder is a vital part of Spring Security, providing a convenient way to manage and access the security context of the current user. I was attempting to write a program where I needed to authenticate a user at the server end using Spring security, I came up with the following: Jan 7, 2012 · Preamble: Since Spring-Security 3. Learn how to easily fetch the current user's username in a Spring Boot application using security context. Spring Security is a framework that focuses on providing both authentication and authorization to Java applications. One important reason for this is that the SecurityContextHolder stores user information in ThreadLocal by default. Yes I am using spring JWT security but that is handled in common-service microservice. May 2, 2020 · SecurityContextHolder, SecurityContext and Authentication Objects By default, the SecurityContextHolder uses a ThreadLocal to store these details, which means that the security context is always available to methods in the same thread of execution. The official Spring Security documentation offers multiple options for working in a multi-threaded environment. I am trying to get ID of currently logged user so I can use it for some of my method. Spring Security has its own spring-security-taglibs library, which provides basic support for accessing security information and applying security constraints in JSPs. get (springSecurityService. getUserPrincipal (). May 19, 2020 · I secured an application in Spring Boot using Keycloak and I'm trying to get the name of the current user logged in. getContext(). 0 (and I’m really happy with it). How do I fetch the logged in user in the service layer? One possible way I feel can be adding the active user to the session when the controller method pushes the message to the queue & then retrieve the user from the session in the service layer. Jan 3, 2019 · I developed a SPA with a Spring Boot API secured with auth0-spring-security-api 1. getContext() internally obtains the current SecurityContext implementation through a ThreadLocal variable. findUserByEmail(principal. Let me explain the flow. Here’s how you can do it: Oct 20, 2018 · 2 There are various ways in Spring Security to fetch the user details from the security context. getContext (). Access the current user registry information in the service, Programmer All, we have been working hard to make a technical sharing website that all programmers love. Oct 21, 2017 · Dear all, I wonder how to retrieve the user information (especially the user name / identifier) in a spring-boot service ? I would like to be able to do something like this in my REST controler public User user() { return (User) SecurityContextHolder . Spring Security use Authentication Objects to represent this information. This allows you to access the authentication data and subsequently query your database for user-specific details. I have a Spring Boot application that uses Spring Security and Thymeleaf template. Comprehensive guide to implementing OAuth2 authentication and authorization using Spring Security framework. I tried Authentication authentication = SecurityContextHolder. Step-by-step guide and code examples. Jan 8, 2024 · Let’s assume that we have a Spring Boot application secured by OIDC using Keycloak, and we want to get a user ID in the Spring Boot application. This is my REST controller method: @RequestMapping ("/getCurrentUser") public User As per request: Spring Boot which uses Spring Security internally provides a SecurityContextHolder class which allows the lookup of the currently authenticated user via: Authentication auth = SecurityContextHolder. Spring Security uses SpEL for expression support and you should look at how that works if you are interested in understanding the topic in more depth. Learn how to secure your web application using Spring Security with this comprehensive guide. import java. I have showed you how you can retrieve this detail inside Controller class as well as inside JSP page. sensitiveHeaders, then using same header parameter while hitting back common-service (gateway service) through webclient. Sometime, you need that in your controller class and sometime in JSP for view purpose, but the big question mark is how do you get the current user in Spring Security? Sep 3, 2019 · Its a coupon system app using Spring security, spring MVC, now. Part of the config: How can I get, for example, current user balance in my Spring MVC Controller? Learn how to get the currently logged-in user in Spring Security using session ID with this comprehensive guide. The source code of this tutorial is here https://github. Dec 3, 2015 · I have implemented user authentication through Spring Security Framework and everything works fine. But it always returns null i This tutorial covers how to retrieve user details in Spring Security, which is a vital aspect when building secure Java applications. I thought about injecting it in my service classes, but I am sure it will not be threa Feb 28, 2018 · I'm currently working on a Spring MVC application and I need to add a custom field to my Spring Security log-in user right when I log in (I insert username, password, custom value). This Authentication object does not need to be created by ourselves. The code I posted works Mar 21, 2019 · I am a new auth0 user and had the same issue, trying to get some User information in the Spring Controller. When you: use an older version of Spring-Security, need to load your custom User Object from the Database by some information (like the login or id) stored in the principal or want to learn how a Dec 4, 2023 · Example Tutorial One of the common task while using Spring Security in a Java web application is getting the username of currently logged in user. 0 Login, the OAuth2LoginAuthenticationFilter uses HttpSessionOAuth2AuthorizedClientRepository (by default) to store Mar 17, 2024 · In this tutorial, we’ll illustrate how to create an application that delegates user authentication to a third party, as well as to a custom authorization server, using Spring Boot and Spring Security OAuth. In this video, I will share with you how to retrieve the UserDetails object that represents the currently logged-in user in a Spring Boot application with Spring Security and Thymeleaf, to display In this article, I will share how to retrieve a UserDetails object that represents the currently logged-in user in a Spring Boot application with Spring Security. It is the de-facto standard for securing Spring-based applications. Sep 16, 2025 · Authorization in Spring Security restricts access to certain parts of the application based on the current user’s roles or authorities. In this situation, we’ll need to get an access token or security context in the Spring Boot application. usign Spring Security ,I'm trying to get the user id from my CustomUser instance returned from loadUserByUsername method on my CustomUserDetailsService, like I do to get get the Name (get. I have Spring Boot REST application which uses JWT tokens for authorization. Learn how to access user information in a Spring Security REST service for both authenticated and unauthenticated users, with detailed explanations and code snippets. Hope this will helps you answered Apr 16, 2018 at 15:53 Rahul Mahadik 12. Mar 6, 2018 · Now, there is one requirement that I need to use the currently logged in user info to save details in database - specifically like when that user add/update a new record. I'm interested how I can get the current logged in user into Sep 16, 2025 · Authorization in Spring Security restricts access to certain parts of the application based on the current user’s roles or authorities. This tutorial will guide you through setting up a Spring Boot 3. getDetails() Oct 8, 2020 · Spring Security : get the current user's fields from a database table Asked 4 years, 4 months ago Modified 4 years, 4 months ago Viewed 1k times 9. I've tried @AuthenticationPrinciple but even though I fed it with my UserDetails implementati Jul 23, 2025 · Spring Security: Knowledge of Spring Security for securing sessions. So in case if you are using default spring's UserDetailsService, then you can get your current logged in user simply by Jan 3, 2021 · In this tutorial we will see how we can get the logged in user in our application. So with every request I can retrieve the user, but surely that's incredibly inefficient to be making so many requests to the database and check if the user actually has a given project. Dec 4, 2023 · That's all about how to get the current username in Spring Security. teddysmith. And I can access the user role with spring security expression in JSP, and can hide the options and URLs which are not authorized with In this post we are going to see, how to get the current authenticated user, in our spring project, using two different methods; so let's start. Aug 17, 2011 · This is more elegant solution, in runtime, Spring will injects UsernamePasswordAuthenticationToken into the Principal interface. Jun 1, 2020 · I am trying to get back the current authenticated user in a service class with: Object principal = SecurityContextHolder. Aug 27, 2023 · This tutorial will show how to retrieve the user details in Spring Security. The default implementation of SecurityContextRepository is DelegatingSecurityContextRepository which delegates to the following: Jun 2, 2023 · Learn how to retrieve JWT tokens from the Security Context Holder in Spring Boot 3 with Spring Security. Is there a way to get the ID of the current user? UserDetailsService is used by DaoAuthenticationProvider for retrieving a username, a password, and other attributes for authenticating with a username and password. . Follow this expert guide. Learn how to get the current authenticated user from the security context in a Spring application for caching purposes. This value need Oct 1, 2014 · I recently started learning about Spring Security and today I stepped on this basic (I believe) question: Why can't I access the current Principal inside a Servlet Filter as demonstrated in the class In this short article, I show you how to get current logged-in username in JSP using Spring Security. Let's see how programmatic access currently authenticated user. Apr 21, 2009 · I recently moved from the JSecurity plugin to Spring Security. May 10, 2024 · In a Spring Security-enabled application, you can access the currently authenticated user (principal) in JSP pages using the Spring Security taglib. Key Features: Stores the SecurityContext in a thread-local variable by default. Aug 15, 2013 · In my spring MVC application i want to access Principal object created by spring security in my service layer. getContext() . I don’t know what information is being added here, but I suspect it is one or more (custom) claims, right? One should be careful not to pollute tokens with (custom) claims that may contain security or even PII sensitive information. principal. Therefore, firing a new thread with new Thread and then attempting to retrieve the Authentication object within that new thread will return null. If you want to use this component, you have to set up Spring Security for the log in of your application to be able to retrieve, in your REST controller, the current user (javax. getPrincipal(); } There is no information about that in the documentation explaining how to secure a back-end May 28, 2016 · The principal is the currently logged in user. Howe May 23, 2015 · It will maintain a database of users and theirs records. Nov 13, 2024 · It is the central point for accessing the security information of the current user in Spring Security. Spring Security to get the current user page If you just want to display the page from the currently logged in user name, can be used directly taglib Spring Security provides. Code gets the user object If you want to get the object correspo Jun 12, 2021 · Currently, I am using JWT tokens via Spring Security as my authentication strategy, and included in the payload of the token I have my Users' id. getAuthentication(); Oct 15, 2018 · I am doing a project on library management system in spring boot security. May 10, 2015 · The JDBC service you defined in the Spring Security configuration will only fetch username, password and enabled status using the users-by-username-query query and username's authorities using the authorities-by-username-query query. For an introduction to Spring Security Aug 7, 2017 · I'm using thymeleaf-extras-springsecurity4 with spring security on my project. One of the most common ways to authenticate a user is by validating a username and password. 2 there is a nice annotation @AuthenticationPrincipal described at the end of this answer. getName()); I'm using Spring Security 4. In particular, there is no need to configure a special Java Authentication and Authorization Service (JAAS) policy file or place Spring Security Apr 16, 2018 · Example: class OrganizationController { def springSecurityService def myAction(){ User user = springSecurityService. It will guide you through the process of retrieving authenticated user information, using practical examples and code snippets. Using a ThreadLocal in this way is quite safe if care is taken to clear the thread after the present principal’s request is processed. Also, we’ll demonstrate how to extract both Principal and Authorities using Spring’s PrincipalExtractor and AuthoritiesExtractor interfaces. getAuthentication () but that returns null. Issue is: If I try to get the curr In Spring Security, retrieving the current user's information from the database involves leveraging the SecurityContextHolder alongside your user repository. g. 0 requires a Java 5. getName(); Here, we find the current Authentication and query it for the username. Usually do not need to create Authentication Objects, but due to frequent queries Authentication Objects are quite common. Jul 23, 2025 · Many times there is a requirement to get the currently logged-in user details so that we can display the user details in our view. As a request is bound to a single thread this will get you spring security+freemarker obtains the information of the logged-in user, Programmer All, we have been working hard to make a technical sharing website that all programmers love. This is the best way to go when you use Spring-Security >= 3. So in this article, we will discuss how to retrieve the currently logged-in user details in Spring Security. If you would like to start from scratch, you can download the starting code base from springInitializr (we will use security and web dependencies). Aug 19, 2020 · I have a Spring Boot app with Spring Security where I have extended the org. Adding Updating and Deleting Users in Spring Security If you need custom user management operations, implement the UserDetailsManager interface. 0 authentication with JWT token. Mar 7, 2020 · This article will show how to retrieve the user details in Spring Security. This doesn't retrieve the role by which user has logged in with. Jul 23, 2025 · UserDetailsService and UserDetails In Spring Security, the UserDetailsService interface is a core component used for loading user-specific data. Apr 20, 2016 · How do I add the custom UserDetailsService below to this Spring OAuth2 sample? The default user with default password is defined in the application. Oct 9, 2019 · This article will focus on how to retrieve the user details in Spring Security. I use Spring Security for authentication and store user's password hashed with Bcrypt. Review the documentation and Aug 10, 2014 · Spring Security get user info in rest service, for authenticated and not authenticated users Asked 10 years, 8 months ago Modified 5 years, 10 months ago Viewed 18k times Grails Spring Security (get current user)Is there ever a case for: def user = User. I'm using spring security in my web application, and now I want to have a list of all users who are logged in my program. springframework. SecurityContextHolder or SecurityContextHolderStrategy is the proper way. How can I retrieve that? In Spring Security the association of the user to future requests is made using SecurityContextRepository. To get current logged-in user details like username and role Spring Security provide an Authentication interface. Spring Security provides comprehensive support for authenticating with a username and password. This can involve creating, updating, deleting, and retrieving user details according to your application's requirements. pxhhwek ebjle fxlrbf telj ihtjqy ntrz ofpr euqlp gsishb fzb