org.hibernate.MappingException: 无法确定类型: java.util.List，在表: College 的列: [org.hibernate.mapping.Column(students)]。

我在我的项目中使用Hibernate进行所有的CRUD操作。它对于一对多和多对一的关系无效。它给了我以下错误。\norg.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for columns: [org.hibernate.mapping.Column(students)]\n然后我又看了这个视频教程。一开始对我来说很简单。但是，我无法让它工作。它现在也说\norg.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for columns: [org.hibernate.mapping.Column(students)]\n我在互联网上进行了一些搜索，有人说这是Hibernate的一个bug，还有人说通过添加@GenereatedValue可以清除这个错误，但对我来说没有效果。\nCollege.java\n

@Entity
public class College {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int collegeId;
private String collegeName;
private List students;
@OneToMany(targetEntity=Student.class, mappedBy="college", fetch=FetchType.EAGER)
public List getStudents() {
    return students;
}
public void setStudents(List students) {
    this.students = students;
}//省略其他getter和setter方法

\nStudent.java\n

@Entity
public class Student {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int studentId;
private String studentName;
private College college;
@ManyToOne
@JoinColumn(name="collegeId")
public College getCollege() {
    return college;
}
public void setCollege(College college) {
    this.college = college;
}//省略其他getter和setter方法

\nMain.java:\n

public class Main {
private static org.hibernate.SessionFactory sessionFactory;
  public static SessionFactory getSessionFactory() {
    if (sessionFactory == null) {
      initSessionFactory();
    }
    return sessionFactory;
  }
  private static synchronized void initSessionFactory() {
    sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
  }
  public static Session getSession() {
    return getSessionFactory().openSession();
  }
  public static void main (String[] args) {
                Session session = getSession();
        Transaction transaction = session.beginTransaction();
        College college = new College();
        college.setCollegeName("Dr.MCET");
        Student student1 = new Student();
        student1.setStudentName("Peter");
        Student student2 = new Student();
        student2.setStudentName("John");
        student1.setCollege(college);
        student2.setCollege(college);
        session.save(student1);
        session.save(student2);
        transaction.commit();
  }
}

\nConsole:\n

 Exception in thread "main" org.hibernate.MappingException: Could not determine type  for: java.util.List, at table: College, for columns:  [org.hibernate.mapping.Column(students)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:306)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:290)
at org.hibernate.mapping.Property.isValid(Property.java:217)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:463)
at org.hibernate.mapping.RootClass.validate(RootClass.java:235)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1330)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1833)
at test.hibernate.Main.initSessionFactory(Main.java:22)
at test.hibernate.Main.getSessionFactory(Main.java:16)
at test.hibernate.Main.getSession(Main.java:27)
at test.hibernate.Main.main(Main.java:43)

\nThe XML:\n

    
    com.mysql.jdbc.Driver
    jdbc:mysql://localhost:3306/dummy
    root
    1234
    
    1
    
    org.hibernate.dialect.MySQLDialect
    
    thread
    
    org.hibernate.cache.NoCacheProvider
    
    true
    
    update