Question

我在这里使用版本4.0.4的查询DSL是我的依赖项;

<dependency>
  <groupId>com.querydsl</groupId>
  <artifactId>querydsl-apt</artifactId>
  <version>4.0.4</version>
  <scope>provided</scope>
</dependency>

<dependency>
  <groupId>com.querydsl</groupId>
  <artifactId>querydsl-jpa</artifactId>
  <version>4.0.4</version>
</dependency>

<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-log4j12</artifactId>
  <version>1.6.1</version>
</dependency>

并且这是我的QueryDSL查询的片段。

        JPQLQuery query = new JPAQuery(em);
        QQuotation quotation = QQuotation.quotation;
        query.from(quotation).where(quotation.ticketNumber.like("this"))

但是查询方法没有list（）方法当我排队.where(quotation.ticketNumber.like("this"))

时

这是完整的代码。

import com.querydsl.jpa.JPQLQuery;
import com.querydsl.jpa.impl.JPAQuery;
import org.app.now.domain.process.QQuotation;
import org.app.now.domain.process.Quotation;
import org.app.now.repo.QuotationRepoCustom;
import org.joda.time.LocalDateTime;
import org.springframework.beans.factory.annotation.Autowired;

import javax.persistence.EntityManager;
import java.util.List;

public class QuotationRepoImpl implements QuotationRepoCustom {

    @Autowired
    private EntityManager em;

    @Override
    public List<Quotation> search(String ticketNumber, String description, LocalDateTime startDate, LocalDateTime endDate) {
        System.out.println("Searching");
        JPQLQuery query = new JPAQuery(em);
        QQuotation quotation = QQuotation.quotation;
        query.from(quotation).where(quotation.ticketNumber.like("this")).
        return null;
    }
}

Answer 1

查看Fechable界面。

@Override
public List<Quotation> search(String ticketNumber, String description, LocalDateTime startDate, LocalDateTime endDate) {
    System.out.println("Searching");
    JPQLQuery query = new JPAQuery(em);
    QQuotation quotation = QQuotation.quotation;
    return query.from(quotation).where(quotation.ticketNumber.like("this")).fetch();
}

祝你好运！

Answer 2

喜欢这个

@Override
public List<Quotation> search(String ticketNumber, String description, LocalDateTime startDate, LocalDateTime endDate) {
    JPQLQuery<Void> query = new JPAQuery<Void>(em);
    QQuotation quotation = QQuotation.quotation;
    return query.select(quotation)
                .from(quotation)
                .where(quotation.ticketNumber.like("this"))
                .fetch();
}

如何从QueryDSL中检索列表/结果

2 个答案: