在spring数据jpa中更新和插入查询

Question

我正在制作一个REST API，其中我必须根据ID进行更新，并通过Spring Data在表中插入没有ID基础的数据。但是我在两种情况下都发现错误，它运行插入查询仅更新不起作用

存储库文件@Repository公共接口CustomerRepository扩展了JpaRepository {CustomerEntity save（CustomerEntity customerEntity）; CustomerEntity findById（int id）;

访问管理器文件

public CustomerDO create（CustomerDO customerReqDO）{CustomerEntity customerEntity = null; CustomerDO customerResDO = new CustomerDO（）; 如果（null！= customerReqDO.getId（））{customerEntity = customerRepository.findById（Integer.parseInt（customerReqDO.getId（）））; if（null！= customerEntity）{

            if(null != customerReqDO.getName())
                customerEntity.setName(customerReqDO.getName());

            if(null != customerReqDO.getPhone())
                customerEntity.setPhone(customerReqDO.getPhone());

            if(null != customerReqDO.getEmail())

                customerEntity.setEmail(customerReqDO.getEmail());

            if(null != customerReqDO.getPassword())
                customerEntity.setPassword(customerReqDO.getPassword());
            //if(null !=customerReqDO.getCredits())
                //customerReqEntity.setCredits(customerReqDO.getCredits());

            customerEntity =customerRepository.save(customerEntity);

          }else{
                    customerResDO.setError("Invalid Customer id "+customerReqDO.getId());
          }}else{
    customerEntity=new CustomerEntity();                    
    customerEntity.setName(customerReqDO.getName());
    customerEntity.setPhone(customerReqDO.getPhone());
    customerEntity.setEmail(customerReqDO.getEmail());

    //customerReqEntity.setFacebookID(customerReqDO.getFacebookID());
    customerEntity.setPassword(customerReqDO.getPassword());
    //customerReqEntity.setCredits(customerReqDO.getCredits());

    customerEntity =customerRepository.save(customerEntity);

            }if(null != customerEntity){
                customerResDO.setId(String.valueOf(customerEntity.getId()));
                customerResDO.setName(customerEntity.getName());
                customerResDO.setPhone(customerEntity.getPhone());
                customerResDO.setEmail(customerEntity.getEmail());
                customerResDO.setPassword(customerEntity.getPassword());
                //deliveryLocationResponseDO.setDeliverytimes(Arrays.asList(deliveryLocationEntity.getDeliverytimes()));
            }
    return customerResDO;

}



controller

@CrossOrigin（origins =“ *”）@PostMapping（）public CustomerResponseDTO register（@RequestBody CustomerUpdateRequestDTO registerRequestDTO）{CustomerDO customerReqDO = new CustomerDO（）; CustomerResponseDTO loginResponseDTO =新的CustomerResponseDTO（）; customerReqDO.setName（registerRequestDTO.getName（））; customerReqDO.setEmail（registerRequestDTO.getEmail（））; customerReqDO.setPhone（registerRequestDTO.getPhone（））; customerReqDO.setPassword（registerRequestDTO.getPassword（））;

    CustomerDO  customerResDO = customerLoginManagerImpl.insert(customerReqDO);

    if(null != customerResDO.getError()){
        loginResponseDTO.setError(customerResDO.getError());
    }else{


    loginResponseDTO.setSucess(true);
}

    return loginResponseDTO;
}  

Answer 1

使用Hibernate中的条件：

Session session = sessionFactory.openSession();
Transaction tx = session.beginTransaction();

String query= "update TableName c set c.attribute= :newAttribute where c.id=:id";
int updatedEntities = s.createQuery( query )
    .setString( "newAttribute ", newAttribute )
    .setString( "id", id)
    .executeUpdate();
tx.commit();
session.close();