Java Hibernate使用OneToMany列插入表
我有两张桌子:Submitor和OrderItem 表提交者包含@OneToMany(OrderItem)和@Join列(提交者id)。 表OrderItem有一个包含提交者id的字段。 结果仅插入数据以提交订单表,而不插入订单项目表 不知道我把哪一部分搞砸了 提交人实体:Java Hibernate使用OneToMany列插入表,java,mysql,angular,spring,hibernate,Java,Mysql,Angular,Spring,Hibernate,我有两张桌子:Submitor和OrderItem 表提交者包含@OneToMany(OrderItem)和@Join列(提交者id)。 表OrderItem有一个包含提交者id的字段。 结果仅插入数据以提交订单表,而不插入订单项目表 不知道我把哪一部分搞砸了 提交人实体: @Entity @Table(name="submit_order") public class SubmitOrder { // Define Fields @Id @
@Entity
@Table(name="submit_order")
public class SubmitOrder {
// Define Fields
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name="id")
private int id;
@Column(name="name")
private String name;
@Column(name="email")
private String email;
@Column(name="phone")
private String phone;
@Column(name="pickup")
private String pickup;
@Column(name="subtotal")
private double subtotal;
@Column(name="tax")
private double tax;
@Column(name="total")
private double total;
@OneToMany(fetch=FetchType.LAZY, cascade=CascadeType.ALL)
@JoinColumn(name="order_id")
private List<OrderItem> orderItem;
public SubmitOrder() {}
public SubmitOrder(String name, String email, String phone, String pickup, double subtotal, double tax, double total) {
this.name = name;
this.email = email;
this.phone = phone;
this.pickup = pickup;
this.subtotal = subtotal;
this.tax = tax;
this.total = total;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getPickup() {
return pickup;
}
public void setPickup(String pickup) {
this.pickup = pickup;
}
public double getSubtotal() {
return subtotal;
}
public void setSubtotal(double subtotal) {
this.subtotal = subtotal;
}
public double getTax() {
return tax;
}
public void setTax(double tax) {
this.tax = tax;
}
public double getTotal() {
return total;
}
public void setTotal(double total) {
this.total = total;
}
public List<OrderItem> getOrderItem() {
return orderItem;
}
public void setOrderItem(List<OrderItem> orderItem) {
this.orderItem = orderItem;
}
}
从角度传递的数据:
SubmitOrder {name: "Sam", email: "sam@email.com", phone: "221-442-3542", subTotal: 73.32, tax: 5.8656, …}
cartOrder: Array(8)
0: {id: 24, section: "Lo Mein", name: "Beef Lo Mein", size: "Small", price: 6.6, …}
1: {id: 29, section: "Dinner", name: "Peper steak with Onion", size: "Dinner", price: 8.46, …}
2: {id: 30, section: "Appetizers", name: "Vegetable Spring Roll (2 pc.)", size: "None", price: 2.42, …}
3: {id: 35, section: "Appetizers", name: "Vegetable Egg Roll (1 pc.)", size: "None", price: 1.32, …}
4: {id: 36, section: "Appetizers", name: "Roast Port Egg Roll (1 pc.)", size: "None", price: 1.32, …}
5: {id: 38, section: "Soup", name: "Wonton Soup", size: "Small", price: 2.42, …}
6: {id: 39, section: "Soup", name: "Egg Drop Soup", size: "Large", price: 3.2, …}
7: {id: 40, section: "Appetizers", name: "Chinese Donuts (10 pc.)", size: "None", price: 4.24, …}
length: 8
__proto__: Array(0)
email: "sam@email.com"
name: "Sam"
phone: "221-442-3542"
pickup: "ASAP"
subTotal: 73.32
tax: 5.8656
total: 79.1856
__proto__: Object
休息控制器
@RestController
@RequestMapping("/api")
@CrossOrigin(origins = "http://localhost:4200")
public class SubmitOrderRESTController {
private SubmitOrderService submitOrderService;
@Autowired
public SubmitOrderRESTController(SubmitOrderService theSubmitOrderService) {
submitOrderService = theSubmitOrderService;
}
@PostMapping("/submit")
public SubmitOrder saveOrder(@RequestBody SubmitOrder theSubmitOrder) {
theSubmitOrder.setId(0);
submitOrderService.save(theSubmitOrder);
return theSubmitOrder;
}
}
存储库
@Repository
public class SubmitOrderDAOImplement implements SubmitOrderDAO {
// Define field for entitymanager
private EntityManager entityManager;
public SubmitOrderDAOImplement(EntityManager theEntityManager){
entityManager = theEntityManager;
}
@Override
public void save(SubmitOrder theSubmitOrder) {
// Get the current hibernate session
Session currentSession = entityManager.unwrap(Session.class);
// Save rates
currentSession.saveOrUpdate(theSubmitOrder);
}
}
其中一个可能的问题与从Angular发送的属性的名称有关。在实体中,“OrderItem”列表的名称为“OrderItem”,但名称为“cartOrder”。尝试以与实体中属性同名的角度发送属性 Aldo,检查属性“subtotal”是否保存在表中,因为有一点细节。(角度:“小计”与实体:“小计”) 正确的解决方案
我用你的实体类做了一个API,我发现了这个问题。从Angular发送“orderItem”的正确方法是不带下划线(orderItem),并且不需要在“orderItem”的每个元素中发送“id”。我添加了API的示例,以便您可以下载并尝试使用Postman o其他工具插入该示例 您是否添加有关该问题的更多详细信息?您有控制器和存储库但没有插入OrderItem吗?感谢您指出小计问题,我已经解决了。但是还有一个问题,后端没有获得orderItems列表
submitor[id=0,name=Yun,email=yun@email.com,phone=124-343-3433,pickup=ASAP,subtotal=73.32,tax=5.8656,total=79.1856,orderItem=null]
是否将属性的角度名称从“cartOrder”更改为“orderItem”?是,为了以防万一,我确实将属性的名称从“cartOrder”更改为“orderItem”,因为我没有API的所有配置。您能否检查将“orderItem”更改为“orderItem”时问题是否仍然存在?因为您可以配置SpringBoot将下划线转换为小写名称。只需使用Postman进行测试,它就可以工作了!非常感谢你的帮助。将重构我的前端代码。
@Repository
public class SubmitOrderDAOImplement implements SubmitOrderDAO {
// Define field for entitymanager
private EntityManager entityManager;
public SubmitOrderDAOImplement(EntityManager theEntityManager){
entityManager = theEntityManager;
}
@Override
public void save(SubmitOrder theSubmitOrder) {
// Get the current hibernate session
Session currentSession = entityManager.unwrap(Session.class);
// Save rates
currentSession.saveOrUpdate(theSubmitOrder);
}
}