第一步：分别写好对应的mapper

[code]public void insertOrde(Order order);

[code]public void insertCustomer(Customer customer);

第二步：分别写好对应的mapper.xml

这里的客户插入之后立马获取它的主键并将他查出来

插入客户

[code]<insert id="insertCustomer" parameterType="Customer" useGeneratedKeys="true" keyProperty="cust_id" keyColumn="cust_id">
insert into `customer`  (cust_name,cust_profession,cust_phone,email) values (#{cust_name},#{cust_profession},#{cust_phone},#{email})
</insert>

插入订单 （看见没有，这里插入的订单中外键，就是我们插入的客户的id）

[code] <insert id="insertOrde" parameterType="Order">
insert into `order`  (orderName,orderNum,orderCustId) values (#{orderName},#{orderNum},#{customer.cust_id})
</insert>

第三步：开始插入

注意事务的提交

[code]@Test
public void test6(){
SqlSession session = MyUtils.openSession();
OrderMapper mapper = session.getMapper(OrderMapper.class);
CustomerMapper mapper1 = session.getMapper(CustomerMapper.class);
Customer customer = new Customer();
customer.setCust_name("太上老君");

Order order = new Order();
order.setOrderName("支付宝订单");
order.setCustomer(customer);

mapper1.insertCustomer(customer);
System.out.println(customer);
mapper.insertOrde(order);

session.commit();

session.close();
}