我正在使用Spring Boot并尝试在用户(User)和技能(Skill)之间实现多对多关系。我有一个名为users_skills的表,包含user_id和skill_id列。当我尝试实现这个关系时,在STS中的@JoinColumn注释中不断收到“JoinColumn无法解析为类型”错误。以下是我的User类:
@Entity
@Table(name = "users")
public class User {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private long id;
private String email;
private String firstName;
private String lastName;
private List<Skill> skills = new ArrayList<Skill>();
protected User() {}
public User(String email,String firstName, String lastName) {
this.email = email;
this.firstName = firstName;
this.lastName = lastName;
}
public Long getId() {
return this.id;
}
public void setId(Long id) {
this.id = id ;
}
public String getEmail() {
return this.email;
}
public void setEmail(String email) {
this.email = email ;
}
public String getFirstName() {
return this.firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName ;
}
public String getLastName() {
return this.lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName ;
}
@ManyToMany
@JoinTable(name="users_skills",
joinColumns={@JoinColumn(name="user_id")},
inverseJoinColumns={@JoinColumn(name="skill_id")})
public List<Skill> getSkills(){
return skills;
}
public void setSkills(List<Skill> skills) {
this.skills = skills ;
}
}
users_skills
表中,user_id
和skill_id
真的是列名吗? - Patrickimport javax.persistence.JoinColumn
语句这么简单吗? - yntelectual