Introduction The ability of hasPermission() method in Spring Boot Security applications is to determine the accessibility of a particular user for the application. The permission of an access can be read, write, etc. So, a particular user has defined set of access permission by which a user can perform certain activities in the application. The…

Posted in Spring Boot Spring JPA Spring Security

PreAuthorize HasPermission Security Using Spring Boot Data JPA

Problem Recently while I was working with Spring Security in recent versions of Spring Boot framework (2.6.6/2.6.7), I was getting the following error (Requested bean is currently in creation: Is there an unresolvable circular reference?):

Posted in Spring Boot Spring Security

Error bean securityConfig: unresolvable circular reference

Table of Contents Introduction Where is @PreAuthorize applicable? Prerequisites Project Setup MySQL Table Data Application Config Entity Classes Repository Interfaces Service Class REST Controller Class Security Config Spring Boot Main Class Testing Spring Security – PreAuthorize hasRole Source Code Introduction PreAuthorize hasRole Spring security will determine whether a user can invoke a method or not…

Posted in Spring Boot Spring JPA Spring Security

PreAuthorize HasRole Security Using Spring Boot Data JPA

Introduction In this example I am going to show you Spring Security Pre-authentication hasrole with Spring Data JPA. In my another example I had shown the similar example on Spring Security Pre-Authentication with Spring JDBC Template. There are situations where you want to use Spring Security for authorization, but the user has already been reliably…

Posted in Spring Boot Spring REST Spring Security

Spring Security Pre-Authentication with Spring Data JPA

Table of Contents Introduction Authentication/Authorization Flow Prerequisites Project Setup Authentication Service Spring Cloud Gateway Testing JWT Auth in Spring Cloud Gateway Source Code Introduction In this tutorial I am going to show you an example on Spring Cloud Gateway Security with JWT. JSON Web Tokens (JWT) are an open, industry standard RFC 7519 method for…

Posted in Spring Boot Spring Cloud Spring REST Spring Security Spring WebFlux

Spring Cloud Gateway Security with JWT (JSON Web Token)

Here in this example I am going to show you how to allow users for OAuth2 SSO (Single Sign On) using AWS (Amazon Web Services) Cognito. I had explained how to do OAuth2 Single Sign On using Spring Boot and GitHub account. Here I am going to use AWS Cognito. You can use any other…

Posted in AWS Spring Boot Spring REST Spring Security

Spring Boot OAuth2 SSO Example with AWS Cognito

Introduction Here we will create Spring Boot Security Angular Login Logout Example which will show you how to integrate Spring Security with Angular 8 to login to the application. We will redirect user to the login page if user is not already logged in. Similarly we will redirect user to the home page if user…

Posted in Angular Spring Boot Spring REST Spring Security

Spring Boot Security Angular 8 Login Logout Example

Introduction In this post we will see an example on Spring Security authentication and role based authorization using JWT (JSON Web Token) on REST or RESTful services. I won’t explain here about JWT as there is already very good article on JWT. We will implement Spring Security’s UserDetailsService to load user from database. We will…

Posted in Spring Boot Spring JDBC Spring Security

Spring Security – Authentication and Role Based Authorization using JWT

Introduction The example Spring Boot Security form based authentication persistence token remember me will show you how to use custom login form with Spring’s j_spring_security_check to authenticate a user. You may also look into form based authentication remember me – persistent token – on Spring MVC framework. The similar example we will implement here but using Spring Boot framework….

Posted in Spring Boot Spring Security

Spring Boot Security – Form Based Authentication – Persistence Token – Remember Me

Introduction The example Spring Boot Security form based authentication remember me will show you how to use custom login form with Spring’s j_spring_security_check to authenticate a user with remember me option. You may also look into form based authentication – remember me – on Spring MVC framework. The similar example we will implement here but using Spring Boot framework….

Posted in Spring Boot Spring Security

Spring Boot Security – Form Based Authentication – Remember Me

Introduction The example Spring Boot Security form based JDBC authentication using UserDetailsService will show you how to use custom login form with Spring’s j_spring_security_check to authenticate a user. You may also look into form based JDBC authentication using UserDetailsService on Spring MVC framework. The similar example we will implement here but using Spring Boot framework. In the previous example…

Posted in Spring Boot Spring JDBC Spring Security

Spring Boot Security – Form Based JDBC Authentication using UserDetailsService

Introduction The example, Spring Boot Security form based JDBC authentication, will show you how to use custom login form with Spring’s j_spring_security_check to authenticate a user. You may also look into form based jdbc authentication on Spring MVC framework. The similar example we will implement here but using Spring Boot framework. In the previous example we had used Resource…

Posted in Spring Boot Spring JDBC Spring Security

Spring Boot Security – Form Based JDBC Authentication