小编sme*_*dak的帖子

我想问一下如何使用带有List属性的class的exampleMatcher.让我们假设,我们有一个可以同时拥有多个角色的用户.我希望从DB获得具有用户角色的所有用户

实体

@Entity(name = "UserEntity")
public class User {
    Private Long id;
    private String name;
    private String surname;

    @OneToOne(cascade = CascadeType.ALL)
    @JoinColumn
    private Address address;

    @ManyToMany(cascade = CascadeType.MERGE, fetch = FetchType.EAGER)
    @JoinColumn
    private List<UserRole> roles;
}

@Entity
public class UserRole {
    private Long id;    
    private String name;
}

我发送一个带有一些属性的User类到getExampleEntity.我正在尝试从UI发送所选角色的列表.

控制器中的功能

@Override
    protected User getExampleEntity() {
        User clonedUser = new User();
        List<UserRole> selectedRole = new ArrayList<>();
        // this cycle just find and add all roles in db based on selection from …