引起：org.postgresql.util.PSQLException：尝试自动创建数据库时数据库不存在

Question

I have this hibernate.cfg.xml :

<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="connection.driver_class">org.postgresql.Driver</property>

        <property name="connection.url">
            jdbc:postgresql://localhost/DatabaseName?createDatabaseIfNotExist=true
                &amp;useUnicode=yes&amp;characterEncoding=UTF-8
        </property>

        <property name="connection.username">postgres</property>
        <property name="connection.password">password</property>
        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">5</property>
        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.PostgreSQL9Dialect</property>
        <!-- Disable the second-level cache -->
        <property name="cache.provider_class">org.hibernate.cache.internal.NoCachingRegionFactory</property>
        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>
        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">update</property>
        <mapping class="com.main.User"/>
    </session-factory>
</hibernate-configuration>

which is supposed to create both tables (for the User entity and the database DatabaseName ). However, it doesn't create a database and fails with an error on this line:

sessionFactory = configuration.buildSessionFactory();

What can I do to make it autocreate database titled DatabaseName ?

Answer 1

To create database you have to create is manually you can use IDEs for that or cmd to create your DB

And To create Tables you can use create in place of update

 <!-- Drop and re-create the database schema on startup -->
    <property name="hbm2ddl.auto">create</property>

It will create a schema and then you will use an update for the next startup if you don`t want to recreate your tables