我有三个表:用户(id,名称,登录名,密码),角色(id,名称),user_roles(id,user_id,role_id)
这是我的代码
@Entity
@Table(name = "users")
public class User extends Model {
@Id
public Long id;
public String name;
public String login;
public String password;
@ManyToMany
@JoinTable(
name = "user_roles",
joinColumns = @JoinColumn(name = "user_id", referencedColumnName = "id"),
inverseJoinColumns = @JoinColumn(name = "role_id", referencedColumnName = "id")
)
public Set<Role> roles;
public static Finder<Integer, User> find = new Finder<>(User.class);
}
@Entity
@Table(name = "roles")
public class Role extends Model {
@Id
public Long id;
public String name;
@ManyToMany(mappedBy = "roles")
public List<User> users;
public static Finder<Integer, Role> find = new Finder<>(Role.class);
}
我希望显示所有具有角色的用户,例如:{&#34; id&#34;:1,&#34; name&#34;:&#34;我的名字&#34;,&#34;登录& #34;:&#34;我的登录&#34;,&#34;密码&#34;:&#34;我的密码&#34;,角色:[{&#34; name&#34;:&#34; ADMIN&#34;},{&#34; name&#34;:&#34; USER&#34;}]} 我怎样才能做到这一点?我是Ebean和ORM的新人。谢谢你的帮助。
更新
public Result all() {
List<User> users = User.find.all();
return ok(toJson(users));
}
但现在我得到stackoverflow错误无限递归。
答案 0 :(得分:0)
制作users.role = null
,然后返回Json