Tag: rest api

JPA EntityManager example in Spring Boot

bezkoder

In this tutorial, you will know how to use JPA EntityManager in Spring Boot example (with CRUD operations and query methods). I will show you:

  • Way to access JPA EntityManager in Spring Boot
  • How to use EntityManager methods: execute SQL query using createQuery and CRUD operations
  • JPA EntityManager query with parameters

Related Posts:
– JPA Native Query example
– Spring JPA Derived query example
– Spring JPA @Query example
– Spring Boot, Spring Data JPA – Rest CRUD API example
– Spring Boot Pagination and Sorting example
– Spring Boot File upload example with Multipart File
– Spring Boot Authentication with Spring Security & JWT
– Spring JPA + H2 example
– Spring JPA + MySQL example
– Spring JPA + PostgreSQL example
– Spring JPA + Oracle example
– Spring JPA + SQL Server example
– Documentation: Spring Boot + Swagger 3 example (with OpenAPI 3)
– Caching: Spring Boot Redis Cache example

Associations:
– JPA One To One example with Hibernate in Spring Boot
– JPA One To Many example with Hibernate and Spring Boot
– JPA Many to Many example with Hibernate in Spring Boot

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Spring Boot – Rest Controller Unit Test with @WebMvcTest

bezkoder

Nowadays Unit Test is so important in Software Development, and Spring Boot Test also provides @WebMvcTest annotation to make writing unit test for Rest Controller more simpler. In this tutorial, we’re gonna look at how to apply @WebMvcTest in our Spring Boot Project with JUnit 5 and Mockito.

More Practice:
– @DataJpaTest example in Spring Boot
– Validate Request Body in Spring Boot
– @RestControllerAdvice example in Spring Boot
– Spring Boot Token based Authentication with Spring Security example
– Documentation: Spring Boot + Swagger 3 example (with OpenAPI 3)
– Caching: Spring Boot Redis Cache example

Associations:
– Spring Boot One To One example with JPA, Hibernate
– Spring Boot One To Many example with JPA, Hibernate
– Spring Boot Many to Many example with JPA, Hibernate

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JPA Repository query example in Spring Boot | Derived Query

bezkoder

In previous posts, you’ve known how to use JPQL and native Query to retrieve data from the database using @Query annotation. Today, I will show you way to implement Spring Data JPA Repository query in Spring Boot with Derived Query methods:

  • Structure of Derived Query methods
  • Configure Spring Boot application to work with different database
  • JPA find by field, column name, multiple columns
  • JPA query methods for pagination and sorting

Related Posts:
– Spring JPA Native Query example
– Spring JPA @Query example with JPQL
– JPA EntityManager example in Spring Boot
– Spring Boot, Spring Data JPA – Rest CRUD API example
– Spring Boot Pagination and Sorting example
– Spring Boot File upload example with Multipart File
– Spring Boot Authentication with Spring Security & JWT
– Spring JPA + H2 example
– Spring JPA + MySQL example
– Spring JPA + PostgreSQL example
– Spring JPA + Oracle example
– Spring JPA + SQL Server example
– Documentation: Spring Boot + Swagger 3 example (with OpenAPI 3)
– Caching: Spring Boot Redis Cache example

Associations:
– JPA One To One example with Hibernate in Spring Boot
– JPA One To Many example with Hibernate and Spring Boot
– JPA Many to Many example with Hibernate in Spring Boot

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JPA Native Query example with Spring Boot

bezkoder 1 Comment

In this tutorial, you will know how to use Spring Data JPA Native Query example (with parameters) in Spring Boot. I will show you:

  • Way to use Spring JPA Native query with @Query annotation
  • How to execute SQL query in Spring Boot
  • JPA Select query with WHERE condition example

Related Posts:
– Spring JPA @Query example with JPQL in Spring Boot
– Spring JPA Derived query example in Spring Boot
– JPA EntityManager example in Spring Boot
– Spring Boot, Spring Data JPA – Rest CRUD API example
– Spring Boot Pagination and Sorting example
– Spring Boot File upload example with Multipart File
– Spring Boot Authentication with Spring Security & JWT
– Spring JPA + H2 example
– Spring JPA + MySQL example
– Spring JPA + PostgreSQL example
– Spring JPA + Oracle example
– Spring JPA + SQL Server example
– Documentation: Spring Boot + Swagger 3 example
– Caching: Spring Boot Redis Cache example

Associations:
– JPA One To One example with Hibernate in Spring Boot
– JPA One To Many example with Hibernate and Spring Boot
– JPA Many to Many example with Hibernate in Spring Boot

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Spring JPA @Query example: Custom query in Spring Boot

bezkoder 1 Comment

In this tutorial, you will know how to use Spring JPA @Query for custom query in Spring Boot example. I will show you:

  • Way to use JPQL (Java Persistence Query Language)
  • How to execute SQL query in Spring Boot
  • JPA Select query with WHERE condition example

Related Posts:
– JPA Native Query example with Spring Boot
– Spring JPA Derived query example in Spring Boot
– JPA EntityManager example in Spring Boot
– Spring Boot, Spring Data JPA – Rest CRUD API example
– Spring Boot Pagination and Sorting example
– Spring Boot File upload example with Multipart File
– Spring Boot Authentication with Spring Security & JWT
– Spring JPA + H2 example
– Spring JPA + MySQL example
– Spring JPA + PostgreSQL example
– Spring JPA + Oracle example
– Spring JPA + SQL Server example
– Documentation: Spring Boot Swagger 3 example
– Caching: Spring Boot Redis Cache example

Associations:
– JPA One To One example with Hibernate in Spring Boot
– JPA One To Many example with Hibernate and Spring Boot
– JPA Many to Many example with Hibernate in Spring Boot

Read More