In this tutorial, you will learn how to deal with an infinite recursion problem or circular reference, which occurs when you try to return an Object with Bidirectional Relationships in the HTTP response body. Infinite Recursion Problem Let’s look at an example that will cause an Infinite Recursion problem in our RESTful Web Service when we…
Read More Infinite Recursion in Objects with Bidirectional RelationshipsThis short tutorial will teach you how to roll back a database change using @Transactional annotation in your RESTful Web Service built with Spring Boot and JPA. Rollback with @Transactional Annotation Sometimes if an error occurs in our RESTful Web Service, we want to roll back the changes made. For changes to be rolled back…
Read More Rollback Using @Transactional in Spring with JPAThis tutorial will teach you how to create a JPA Native SQL Query to only select information from specific columns. You can find many more Spring Data JPA-related tutorials on this site. Some of the most popular tutorials are: One-to-One Mapping Hibernate/JPA Using Spring Boot and MySQL One-to-Many Mapping Hibernate/JPA Using Spring Boot and MySQL…
Read More Select Specific Columns with JPA Native QueryIn this tutorial, I will share how to make the Spring Boot application display Hibernate SQL Queries. If you are learning about Hibernate, you might also be interested in the following tutorials: One-to-One Mapping Hibernate/JPA Using Spring Boot and MySQL One-to-Many Mapping Hibernate/JPA Using Spring Boot and MySQL Many-to-Many Relationship in Spring Boot Rest +JPA…
Read More Show Hibernate SQL Query in Spring BootThis short Spring Data JPA tutorial will teach you how to write a Native UPDATE SQL query. Let’s assume you need to run the following SQL query: update users u set u.EMAIL_VERIFICATION_STATUS = ‘true’ where u.USER_ID = ‘5JwQBHd1mL73XEg8S2e2w4ITn9gOW4’ I assume you will not want to hardcode the values of EMAIL_VERIFICATION_STATUS and USER_ID into an SQL…
Read More Spring Data JPA Native UPDATE SQL QueryIn this tutorial, you will learn how to run an SQL query in your project, which uses Spring Data JPA Query Methods. You will learn how to annotate the Spring Data JPA Query method so that you can use it to perform a custom SQL query to SELECT, UPDATE or DELETE a record from a…
Read More SQL Query with JPQL in a Spring Data JPA ProjectIn this blog post, I am going to list commonly used POM.XML dependencies for building RESTful Web services with Spring Boot and Spring MVC. The list of below dependencies is not complete and will depend on the functionality you need your RESTful Web Services to support. But if you are building a simple REST API…
Read More Common POM.XML Dependencies for RESTful Web ServicesWhen building RESTful Web Services we often need to add additional functionality to our project. For example, our application might need to work with a database or be able to cache data or work with LDAP or MongoDB. For our application be able to work with LDAP or MongoDB there are third-party libraries which we…
Read More A List of Spring Boot StartersThe list of below video tutorials is a Quick Start to learning How to Build RESTful Web Services with Spring Framework. Spring Framework is large and there is so much to learn about it. And although there are so many tutorials on the Internet I still felt it would be helpful to create a series…
Read More RESTful Web Services with Spring Framework. Video TutorialsIn this tutorial on Rest Assured, I am going to share with you how to create a test case which sends HTTP Get Request and includes two Query String Request Parameters. Let’s assume we need to test a RESTful Web Service Endpoint which returns a list of users. The URL to our RESTful Web Service…
Read More Rest Assured HTTP Request with Query ParametersIn this tutorial, you will learn how to validate the request body of an HTTP Post request sent to a RESTful Web Service endpoint built with Spring Boot. Request Body JSON Let’s say you have a RESTful Web Service endpoint that accepts HTTP post requests with the following JSON payload: { “firstName”: “Sergey”, “lastName”: “Kargopolov”,…
Read More Validate Request Body in RESTful Web ServiceIn this tutorial, you will learn how to make a method in your Rest Controller class return a custom HTTP status code. To return a specific HTTP status code from a Spring Controller method in your application, you can use the ResponseEntity class. ResponseEntity with HTTP Status Code Let’s assume we have a simple web…
Read More Return Custom HTTP Status from Spring ControllerIn this JUnit 5 and Rest Assured tutorial, I am going to share with you how to add JUnit 5 and Rest Assured support to your Spring Boot project. It will be more than that actually. This tutorial will cover: Add JUnit 5 and Rest Assured to Spring Boot Project, Create a new JUnit 5…
Read More Create a JUnit 5 Test Case with Rest Assured. Video Tutorial.In this short Java tutorial, I am going to share with you one of the ways you can use to add hours to a Java Date object and then compare that Date object with another date if needed. Add Hours to Java Date Object You can use the Instant and Duration objects to add a few hours…
Read More Add Hours to Java Date and Compare DatesIf your mobile or web app allows the user to register and have an account with your project then you also need to let users recover their lost or forgotten password. And in this video tutorial, I am going to share with you a few videos that will help you implement Password Reset functionality in your…
Read More Password Reset in REST API. Video tutorial.