hibernate - Wild card characters in hibernate

Question

how to add a wildcard characters in hibernate?

I have try to do like this but already have a errors

"from Employee where epf like"+Epf+"%";

Epf is a int parameter pass to the query

Answer 1

你缺少引号'...'。最终查询应如下所示：

SELECT Employee WHERE epf LIKE 'text%'

所以将您的代码更改为

"from Employee where epf like '"+Epf+"%'";

应该做的伎俩。注意：打开和关闭单引号'...'这里'"+Epf+"%'

但是你的方法不好。在查询中添加这样的文本是危险的。考虑这个以获取更多信息：

• http://en.wikipedia.org/wiki/SQL_injection

使用绑定参数更安全：

session.createQuery("from Employee where epf like :epf")
       .setParameter("epf", epf + "%")
       .list();

Answer 2

对于不区分大小写的 %Like% 搜索

 Criteria criteria = session.createCriteria(Any.class);
 criteria.add(Restrictions.ilike(propertyName, value, MatchMode.END);
 criteria.list();

Answer 3

您可以为此使用标准构建器的 Like 功能。

        int EPF=7;
        CriteriaBuilder cb=session.getCriteriaBuilder();
        CriteriaQuery<Object> cquery=cb.createQuery(Object.class);
        Root<Employee> root=cquery.from(Employee.class);
        cquery.select(root);
        Predicate predicate=cb.like(root.<String>get("epf"),"EPF"+"%");
        cquery.where(predicate);
        Query q=session.createQuery(cquery);
        System.out.println(q.list());