Hibernate is not auto-creating a table that does not exist in the DB

Question

I have a basic Hibernate code, I have set the property "hibernate.hbm2ddl.auto" as update still it is not auto-creating the table in the Database.

These are the required files:

employee.hbm.xml

<hibernate-mapping>
  <class name="contacts.employee" table="contacts">
      <meta attribute="class-description"></meta>
    <id column="contactId" name="contactId" type="string">
      <generator class="assigned"/>
    </id>
    <property column="contactName" length="100" name="contactName" not-null="true" type="string"/>
    <property column="password" length="100" name="password" not-null="true" type="string"/>
    <set cascade="all" name="groupOfResponsibilities" table="employee_responsibilty">
      <key column="contactId"/>
      <many-to-many class="contacts.responsibilities" column="responsibilityId"/>

    </set>

  </class>
</hibernate-mapping>

responsibility.hbm.xml

<hibernate-mapping>
  <class name="contacts.responsibilities" table="responsibilities">
    <meta attribute="class-description">
        This class list of responsibilities if an employee
    </meta>
    <id column="responsibilityId" name="responsibilityId" type="long">
      <generator class="increment"/>
    </id>
    <property column="responsibilityName" name="responsibilityName" type="string"/>
  </class>
</hibernate-mapping>

hibernate.cfg.xml

<hibernate-configuration>
  <session-factory>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/****</property>
    <property name="hibernate.connection.username">*****</property>
    <property name="hibernate.connection.password">*****</property>
    <property name="hibernate.hbm2ddl.auto">update</property>
    <property name="hibernate.show_sql">true</property>
    <mapping resource="contacts/employee.hbm.xml"/>
    <mapping resource="contacts/responsibilitiy.hbm.xml"/>
  </session-factory>
</hibernate-configuration>

This is the Main.java that I am trying to run:

public class Main {

    public static void main(String[] args) {

        SessionFactory sessionfactory = NewHibernateUtil.getSessionFactory();
        Transaction transaction = null;
        try {
            Session session = sessionfactory.openSession();
            transaction = session.beginTransaction();
            Set<responsibilities> groups = new HashSet<responsibilities>();
            responsibilities responsibilityOne=new responsibilities("Java");
            responsibilities responsibilityTwo=new responsibilities("SQL");
            responsibilities responsibilityThree=new responsibilities("Oracle");
            groups.add(responsibilityOne);
            groups.add(responsibilityTwo);
            groups.add(responsibilityThree);
            String uuid = UUID.randomUUID().toString();
            String uuid2 = UUID.randomUUID().toString();
            employee firstEmployee;
            firstEmployee = new employee(uuid, "Mike", groups);
            employee secondEmployee = new employee(uuid2, "Marc", groups);
            session.save(responsibilityOne);
            session.save(responsibilityTwo);
            session.save(responsibilityThree);
            session.save(firstEmployee);
            session.save(secondEmployee);

            transaction.commit();
        } catch (HibernateException e) {
            transaction.rollback();
            e.printStackTrace();
        } finally {

        }

    }
}

This is the error that I get:

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table '**.responsibilities' doesn't exist

Answer 1

I had the same issue, this worked for me -

<property name="hibernate.hbm2ddl.auto">create</property> 

Answer 2

The following scenario could be another reason why Hibernate cannot auto-create your table:

@Entity public class Employee {   @Id   @GeneratedValue   private String empID;   private String name; }    

The table Employee will not be auto-created by Hibernate since empID is a String and it has the @GeneratedValue annotation. empID should be an int or long. I had this problem sometime and I changed my id field that had the @GeneratedValue annotation to be of type int and Hibernate auto-created the table.

Answer 3

I had the same problem, I solved it by changing:

org.hibernate.dialect.MySQLInnoDBDialect

to

org.hibernate.dialect.MySQLDialect

I found the solution in this question.

Answer 4

1. First, check your MySQL version with $mysql --version $mysql Ver 14.14 Distrib 5.5.11

Then change Dialect accordingly

2. then change the dialect property /For this example I have given MySQL55Dialect/ org.hibernate.dialect.MySQL55Dialect

//////////////////////////////////////////////// --where you can find Dialect:

org.hibernate.dialect
try 
import org.hibernate.dialect.ctrl+space
you find option

Hope this Help