更新Redis中的单个哈希字段

Question

是否可以在不需要其他字段的情况下更新 Student 对象的单个字段？假设我想更新成绩字段。import com.ahmetk.redis.redishll.model.Student;import org.springframework.data.repository.CrudRepository;import org.springframework.stereotype.Repository;@Repositorypublic interface StudentRepository extends CrudRepository<Student, String> {}@RedisHash("Student")@Data@Getter@Setter@AllArgsConstructorpublic class Student implements Serializable {   public enum Gender {      MALE, FEMALE   }   private String id;   private String name;   private Gender gender;   private int grade;   @Override   public String toString() {      return "Student{" + "id='" + id + '\'' + ", name='" + name + '\'' + ", gender=" + gender + ", grade=" + grade + '}';   }}    @Test    public void whenDeletingStudent_thenNotAvailableOnRetrieval() throws Exception {        final Student student = new Student("Eng2015001", "John Doe", Student.Gender.MALE, 1);        studentRepository.save(student);        studentRepository.delete(student.getId());        final Student retrievedStudent = studentRepository.findOne(student.getId());        assertNull(retrievedStudent);    }

Answer 1

你可以看看这个 - https://docs.spring.io/spring-data/data-redis/docs/current/reference/html/#redis.repositories.partial-updates

文档中示例中的模板是 RedisKeyValueTemplate 的一个实例

@Autowired

private RedisKeyValueTemplate redisKVTemplate;

redisKVTemplate.update(entity)