Spring Specification and Pageable

问题

How can I use Specification and Pageable together?

personelRepository.java

@Query("SELECT e FROM PersonelEntity e ")
List<PersonelEntity> findData(Specification<PersonelEntity>  test, Pageable pageable);

personelService.java

public List<PersonelEntity> filteredData(Specification<PersonelEntity> filter,Pageable  pageable){
    List<PersonelEntity> filteredData = personelRepository.findData(filter,pageable);
    return filteredData;
}

personelController.java

Pageable reqCount = new PageRequest(0, 10);
Specification<PersonelEntity> filter = new FilterSpecification<PersonelEntity>(new SearchCriteria("name", "=","lux"));
personels = personelService.findData(filter,reqCount);

When I run it I get an error like this. But if I call findAll() function separately like findAll(Pageable page) and findAll(Specification filter) it works. But I can not use it together.

java.lang.IllegalArgumentException: Parameter with that position [1] did not exist
    at org.hibernate.jpa.spi.BaseQueryImpl.findParameterRegistration(BaseQueryImpl.java:502) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.jpa.spi.BaseQueryImpl.setParameter(BaseQueryImpl.java:692) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.jpa.spi.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:181) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.jpa.spi.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:32) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
    at org.springframework.data.jpa.repository.query.ParameterBinder.bind(ParameterBinder.java:141) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.StringQueryParameterBinder.bind(StringQueryParameterBinder.java:61) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.ParameterBinder.bind(ParameterBinder.java:101) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.SpelExpressionStringQueryParameterBinder.bind(SpelExpressionStringQueryParameterBinder.java:69) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.ParameterBinder.bindAndPrepare(ParameterBinder.java:161) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.ParameterBinder.bindAndPrepare(ParameterBinder.java:152) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.AbstractStringBasedJpaQuery.doCreateQuery(AbstractStringBasedJpaQuery.java:81) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.createQuery(AbstractJpaQuery.java:190) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:121) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:85) ~[spring-data-jpa-1.11.1.RELEASE.jar:na]

回答1:

Solve by editing personelService.java and delete findData function on personelRepository. I use springframework.data.jpa.repository.JpaRepository findAll() function and it works.

public List<PersonelEntity> filteredData (Specification<PersonelEntity> spec, Pageable pageable){
    Page<PersonelEntity> pageData = personelRepository.findAll(spec,pageable);
    List<PersonelEntity> filteredData = pageData.getContent();
    return filteredData;
}

来源：https://stackoverflow.com/questions/43447687/spring-specification-and-pageable

标签

java

Spring

hibernate

spring-data

specifications