java - QueryDSL 没有返回对象

Question

我在查询 dsl 方面遇到问题。我已经生成了 querydsl 类。但是当我尝试执行查询时，它不会返回 Customer 类型的结果对象，而是返回实际的 sql 查询。我做错了什么？

@Configuration
@EnableAutoConfiguration
public class App
{
    public static void main( String[] args )
    {

        ConfigurableApplicationContext context = SpringApplication.run(App.class);
        CustomerRepository repository  = context.getBean(CustomerRepository.class);

        repository.save(new Customer("Alicia", "Keys"));

        QCustomer customer = QCustomer.customer;
        EntityManager em = context.getBean(EntityManager.class);
        JPAQuery query = new JPAQuery(em);

        Customer alicia = query.from(customer).where(customer.id.eq(1L));

        context.close();

}

Answer 1

我认为您错过了 uniqueResult(或 list() 以获得多个结果)

query.from(customer)
   .where(XXX)
   .uniqueResult(customer);

参见:http://www.querydsl.com/static/querydsl/2.1.0/reference/html/ch02.html