Spring-data-jpa 之Specification in的用法

构建简单的Predicate示例：

Predicate p1=cb.like(root.get(“name”).as(String.class), “%”+uqm.getName()+“%”);

Predicate p2=cb.equal(root.get("uuid").as(Integer.class), uqm.getUuid());

Predicate p3=cb.gt(root.get("age").as(Integer.class), uqm.getAge());

构建组合的Predicate示例：

Predicate p = cb.and(p3,cb.or(p1,p2));

//根据竞买人客户名称进行查询
 In<Long> in = cb.in(root.get(BailPay_.customerId));

if(customerName != null && !customerName.isEmpty()){
List<Customer> customerList = customerRepository.findAllByCustomerName(customerName);
if (customerList != null && customerList.size()>0) {
for (Customer customer : customerList) {
if (customer != null) {
in.value(customer.id());
}
}
 predicates.add(in);
}else{
Predicate predicateCustomerId = cb.equal(root.get(BailPay_.customerId), 0L);
predicates.add(predicateCustomerId);
}
}