Question

如何在java hibernate中对象名参数？

    String supplierHql = "from Supplier where name='Kamil'";
    Query supplierQuery = session.createQuery(supplierHql);
    Supplier supplierr = (Supplier) supplierQuery.list().get(0); // ilk değerini aldık


    String hql = "from Product as product  where product.supplier=:supplierr";
    Query query = session.createQuery(hql);
    List resulList = query.list();

Answer 1

String hql = "from Product as product  where product.supplier=:supplierr";
List result = session.createQuery(hql)
.setParameter("supplierr", "7277")
.list();

Answer 2

String hql = "from Product as product where product.supplier='"+ supplier.getSupplier() + "'";
Query query = session.createQuery(hql);
List resulList = query.list();

Answer 3

您可以使用namedQuery。 Exp：在您的实体中定义namedQueries。

@NamedQueries({
@NamedQuery(name="Product.findProductBySupplier",
            query="from Product p where p.supplier = :supplier")})

/ * Hibernate 5之前的多个在namedQueries标签中定义了namedQuery，在5之后定义了许多未使用NamedQueries的namedQuery。 * /

Query query = session.getNamedQuery("Product.findProductBySupplier").setString("supplier", "kamil");
query.list(); //or uniqueResult();

你应该看看这个教程。

https://examples.javacodegeeks.com/enterprise-java/jpa-named-query-example/

http://www.objectdb.com/java/jpa/query/named

如何在java hibernate中对象名参数

3 个答案: