实体映射中的重复列（应使用insert =＆＃34; false＆＃34; update =＆＃34; false＆＃34;）进行映射

Question

我有2个表：菜单和课程。我映射到2

package ir.parhoontoos.hibernate;

    import java.io.Serializable;

    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.FetchType;
    import javax.persistence.GeneratedValue;
    import javax.persistence.Id;
    import javax.persistence.JoinColumn;
    import javax.persistence.ManyToOne;
    import javax.persistence.OneToMany;
    import javax.persistence.Table;

    @Entity
    @Table(name="course")
    public class Course implements Serializable{
        public Course() {
        }

        public Course(String title , String description , byte[] image , Menu menu){
            this.title = title;
            this.description = description;
            this.image = image;
            this.menu = menu;
        }


        private Integer course_id;

        private String title;

        private String description;

        private byte[] image;

        private Menu menu;

        @Id @GeneratedValue
        @Column(name="course_id" , unique = true, nullable = false)
        public Integer getCourse_id() {
            return course_id;
        }
        public void setCourse_id(Integer course_id) {
            this.course_id = course_id;
        }

        @Column(name="title")
        public String getTitle() {
            return title;
        }
        public void setTitle(String title) {
            this.title = title;
        }

        @Column(name="description")
        public String getDescription() {
            return description;
        }
        public void setDescription(String description) {
            this.description = description;
        }

        @Column(name="image")
        public byte[] getImage() {
            return image;
        }
        public void setImage(byte[] image) {
            this.image = image;
        }

        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "menu_id", nullable = false , insertable=false , updatable=false)
        public Menu getMenu() {
            return menu;
        }

        public void setMenu(Menu menu) {
            this.menu = menu;
        }
    }

和

package ir.parhoontoos.hibernate;

import java.io.Serializable;
import java.util.Set;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToMany;
import javax.persistence.Table;

@Entity
@Table(name="menu")
public class Menu implements Serializable{

    public Menu() {
    }

    public Menu(String title) {
        this.title = title;
    }

    @Id @GeneratedValue
    @Column(name="menu_id" , unique = true, nullable = false)
    private int id;

    @Column(name="title")
    private String title;

    @OneToMany(fetch = FetchType.LAZY, mappedBy = "menu")
    private Set<Course> posts;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public Set<Course> getPosts() {
        return posts;
    }

    public void setPosts(Set<Course> posts) {
        this.posts = posts;
    }

}

表：

CREATE TABLE `course` (
  `course_id` int(11) NOT NULL AUTO_INCREMENT,
  `title` text NOT NULL,
  `description` text NOT NULL,
  `image` binary(1) NOT NULL,
  `menu_id` int(11) NOT NULL,
  PRIMARY KEY (`id`,`menu_id`),
  KEY `fk_course_menu_idx` (`menu_id`),
  CONSTRAINT `fk_course_menu` FOREIGN KEY (`menu_id`) REFERENCES `menu` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION
)

和

CREATE TABLE `menu` (
  `menu_id` int(11) NOT NULL AUTO_INCREMENT,
  `title` text,
  PRIMARY KEY (`id`)
)

当尝试创建会话对象时，我有这个例外：

  

org.hibernate.MappingException：实体映射中的重复列：   ir.parhoontoos.hibernate.Course列：id（应该映射为   插入=＆＃34;假＆＃34;更新=＆＃34;假＆＃34）