Why Hibernate does not create database for MySQL?
configuration, hibernate, java, mysql
Solution
I usually use the properties file to automatically create a database when i'm using Spring, and below is how its done, hope this works so u'll modify this to suite your needs.....
database.driver=com.mysql.jdbc.Driver
database.url=jdbc:mysql://localhost:3306/userdb?createDatabaseIfNotExist=true
database.user=root
database.password=root
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.hbm2ddl.auto=create
Problem
I have following hibernate.cfg.xml: ``` <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="connection.url">jdbc:mysql://localhost:3306/userdb</property> <property name="connection.username">root</property> <property name="connection.password">1234</property> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property> <property name="show_sql">true</property> <property name="format_sql">true</property> <property name="hbm2ddl.auto">create</property> <property name="connection.pool_size">1</property> <property name="current_session_context_class">thread</property> <mapping class="com.beingjavaguys.hbn.User" /> </session-factory> </hibernate-configuration> ``` I tryed another dialect(`org.hibernate.dialect.MySQLDialect`) but I see old result pom.xml: ``` ... <dependencies> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.0.1.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>4.2.0.Final</version> </dependency> <dependency> <groupId>org.hibernate.common</groupId> <artifactId>hibernate-commons-annotations</artifactId> <version>4.0.1.Final</version> <classifier>tests</classifier> </dependency> <dependency> <groupId>org.hibernate.javax.persistence</groupId> <artifactId>hibernate-jpa-2.0-api</artifactId> <version>1.0.1.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>4.0.1.Final</version> </dependency> <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>1.0.0.GA</version> <scope>provided</scope> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.27</version> </dependency> </dependencies> </project> ``` When invokes following code line: ``` return new Configuration().configure().buildSessionFactory(); ``` I see following stacktrace: ``` ERROR: HHH000231: Schema export unsuccessful com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'userdb' at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ... at org.hibernate.tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.prepare(SuppliedConnectionProviderConnectionHelper.java:51) at org.hibernate.tool.hbm2ddl.DatabaseExporter.<init>(DatabaseExporter.java:52) at org.hibernate.tool.hbm2ddl.SchemaExport.execute(SchemaExport.java:368) at org.hibernate.tool.hbm2ddl.SchemaExport.create(SchemaExport.java:305) at org.hibernate.tool.hbm2ddl.SchemaExport.create(SchemaExport.java:294) at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:452) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1737) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1775) at com.beingjavaguys.hbn.HibernateUtil.buildSessionFactory(HibernateUtil.java:16) at com.beingjavaguys.hbn.HibernateUtil.<clinit>(HibernateUtil.java:12) at com.beingjavaguys.hbn.App.saveUser(App.java:45) at com.beingjavaguys.hbn.App.main(App.java:30) ``` What the reason of this problem? How to fix it? P.S. database schema doesn't exist in MySql! if I add Database shema explicitly - all works good. Is where way to create schema from java application?