private int whoid; // thi id of the order's User
private User user;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public int getWhoid() {
return whoid;
}
public void setWhoid(int whoid) {
this.whoid = whoid;
}
}
[java]
public class User {
private int id;
private String username;
private String password;
//这里需要注意的是使用集合必须使用Set,而不能用HashSet,否者在插入数据的时候会抛出一个参数不匹配异常
private Set
public Set
return orders;
}