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Finding an entity
To find an entity, EntityManger interface provides find() method that searches an element on the basis of primary key.
JPA Entity Finding Example
Here, we will search a particular record and fetch it on the console.
This example contains the following steps: –
- Create an entity class named as StudentEntity.java under com.tutoraspire.jpa.student package that contains attributes s_id, s_name, s_age.
StudentEntity.java
- Now, map the entity class and other databases confiuguration in Persistence.xml file.
Persistence.xml
- Create a persistence class named as FindStudent.java under com.tutoraspire.jpa.find package to persist the entity object with data.
FindStudent.java
Output:
Next TopicJPA Update an Entity