插入＆amp;使用Spring MVC，JPA Hibernate，@ OneToOne外键更新实体

Question

我正在使用JPA Hibernate和@OneToOne使用外键方法。添加＆amp; amp时出现问题更新我的数据。

我的问题是：
1）我只想将数据插入 Customer 表，但它也会将空值插入 CustomerInfo 表。
2）我只想更新客户表。但它也会将空值插入 CustomerInfo ，并将PK更新回客户的FK。

  

表格设计

     

班级：客户

 Customer{
        customerId(PK),
        name,
        customerInfoId(FK)
        }
        CustomerInfo{
        customerInfoId(PK),
        address1,
        address2,
        address3} 



@OneToOne(fetch = FetchType.LAZY, cascade = { CascadeType.ALL })
@JoinColumn(name = "customerInfoId", nullable = true, updatable = true,     insertable = true)
private CustomerInfo customerInfo;

添加新客户

输入数据：

客户（名称= “GARY”），
CustomerInfo-No Input（空字符串）＆lt; - Spring MVC将其默认设置为空字符串。

来自DB的结果 ：

Customer:
customerId("1"),
name("GARY"),
customerInfoId("1")<--this should be null
CustomerInfo:
customerInfoId("1")<--don't know why JPA hibernate insert into this table as there is no data input

更新客户

客户（名称= 'GARY123'），
CustomerInfo-No Input（空字符串）＆lt; - 默认情况下，Spring mvc将设置为空字符串。

DB

的结果

Customer:
customerId("1")
name("GARY123")
customerInfoId("2") - this should be null
CustomerInfo:
customerInfoId("2) - don't know why JPA Hibernate insert into this table as there is no input data

Hibernate SQL for update Customer：

insert into CUSTOMERINFO(CUSTOMERINFOID, ADDRESS1, ADDRESS2, ADDRESS3) values (default, ?, ?, ?);

update CUSTOMER set name =?, customerInfoId = ?  where CUSTOMERID = ?

以下是我打电话给创作＆amp;更新客户：

 @Override
public void create(CustomerObj obj) {
    Customer entity = new Customer();
    entity.setName(obj.getName());

    CustomerInfo customerInfo = new CustomerInfo();
        customerInfo.setAddress1(obj.getCustomerInfo().getAddress1());
        customerInfo.setAddress2(obj.getCustomerInfo().getAddress2());
        customerInfo.setAddress3(obj.getCustomerInfo().getAddress3());

        entity.setCustomerInfo(customerInfo);

        persistAndFlush(entity);

    }

@Override
    public void update(CustomerObj obj) {
        Customer entity = findById(obj.getCustomerId)
        entity.setName(obj.getName());

        CustomerInfo customerInfo = new CustomerInfo();
            customerInfo.setAddress1(obj.getCustomerInfo().getAddress1());
            customerInfo.setAddress2(obj.getCustomerInfo().getAddress2());
            customerInfo.setAddress3(obj.getCustomerInfo().getAddress3());

            entity.setCustomerInfo(customerInfo);


        }