Hibernate version:
Hibernate annotations 3.4
Hibernate Tools 3.2.2 beta1
Hibernate Core 3.3 SP1
MySQL Connector 5.1.6
Name and version of the database you are using:
MySQL 5
I am newbie in Hibernate so this issue may be resolved quickly. I want to use MySQL database in my project. However Hibernate core raises exception
ERROR DriverManagerConnectionProvider:88 - JDBC Driver class not found: com.mysql.jdbc.Driver
What is weird the exception is thrown when I run the application. When I launch exportscheme task it is finished fine. And the MySQL connection jar is in classpath for both tasks. I tried changing database to HSQLDb but Hibernate also gave me an exception: JDBC Driver class not found for HSQLDB.
When I tried to load MySQL driver in my startup class it is loaded within an error. However when the execution reaches the Hibernate driver manager it fails.
Here is my hibernate.cfg.xml file
Code:
<!DOCTYPE hibernate-configuration SYSTEM
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">
com.mysql.jdbc.Driver
</property>
<property name="hibernate.connection.url">
jdbc:mysql://localhost/project
</property>
<property name="hibernate.connection.username">
root
</property>
<property name="hibernate.connection.password">
</property>
<property name="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</property>
<!-- Use the C3P0 connection pool provider -->
<property name="hibernate.c3p0.min_size">5</property>
<property name="hibernate.c3p0.max_size">20</property>
<property name="hibernate.c3p0.timeout">300</property>
<property name="hibernate.c3p0.max_statements">50</property>
<property name="hibernate.c3p0.idle_test_period">3000</property>
<!-- Show and print nice SQL on stdout -->
<property name="show_sql">true</property>
<property name="format_sql">true</property>
</session-factory>
</hibernate-configuration>
My hibernate.properties
Code:
hibernate.connection.driver_class=com.mysql.jdbc.Driver
hibernate.connection.url=jdbc:mysql://localhost/project
hibernate.connection.username=root
hibernate.connection.password=
hibernate.dialect=org.hibernate.dialect.MySQLDialect
My ant task
Code:
<project name="TourClub" default="compile" basedir=".">
<!-- Name of project and version -->
<property name="proj.name" value="Project" />
<property name="proj.version" value="1.0" />
<!-- Global properties for this build -->
<property name="src.java.dir" value="src" />
<property name="lib.dir" value="lib" />
<property name="build.dir" value="bin" />
<!-- Classpath declaration -->
<path id="project.classpath">
<fileset dir="${lib.dir}">
<include name="**/*.jar" />
<include name="**/*.zip" />
</fileset>
</path>
<!-- Useful shortcuts -->
<patternset id="meta.files">
<include name="**/*.xml" />
<include name="**/*.properties" />
</patternset>
<!-- Clean up -->
<target name="clean">
<delete dir="${build.dir}" />
<mkdir dir="${build.dir}" />
</target>
<!-- Compile Java source -->
<target name="compile" depends="clean">
<mkdir dir="${build.dir}" />
<javac srcdir="${src.java.dir}" destdir="${build.dir}" nowarn="on" debug="on">
<classpath refid="project.classpath" />
</javac>
</target>
<!-- Copy metadata to build classpath -->
<target name="copymetafiles">
<copy todir="${build.dir}">
<fileset dir="${src.java.dir}">
<patternset refid="meta.files" />
</fileset>
</copy>
</target>
<taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="project.classpath" />
<target name="schemaexport" depends="compile, copymetafiles" description="Exports a generated schema to DB and file">
<hibernatetool destdir="${basedir}">
<classpath path="${build.dir}" />
<!--configuration configurationfile="${build.dir}/hibernate.cfg.xml" /-->
<annotationconfiguration configurationfile="${build.dir}/hibernate.cfg.xml"/>
<hbm2ddl drop="true" create="true" export="true" outputfilename="dump.sql" delimiter=";" format="true" />
</hibernatetool>
</target>
<!-- Run -->
<target name="run" depends="compile, copymetafiles" description="Build and run">
<java fork="true" classname="org.project.Main" classpathref="project.classpath">
<classpath path="${build.dir}"/>
</java>
</target>
</project>
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