各数据库连接maven配置

<dependency>

        <groupId>org.apache.derby</groupId>

        <artifactId>derbyclient</artifactId>

        <version>10.2.2.0</version>

</dependency>

hibernate.dialect=org.hibernate.dialect.DerbyDialect

hibernate.connection.driver_class=org.apache.derby.jdbc.ClientDriver

hibernate.connection.url=jdbc:derby://localhost/trails;create=true

hibernate.connection.username=any

hibernate.connection.password=value

hibernate.hbm2ddl.auto=update

There is a reported issue with DBCP and the MySQL driver. Check the JIRA issue for more info and a possible solutionhttp://jira.codehaus.org/browse/TRAILS-85

<dependency>

        <groupId>mysql</groupId>

        <artifactId>mysql-connector-java</artifactId>

        <version>5.0.5</version>

</dependency>

hibernate.dialect=org.hibernate.dialect.MySQLInnoDBDialect

hibernate.connection.driver_class=com.mysql.jdbc.Driver

hibernate.connection.url=jdbc:mysql://localhost/trails?createDatabaseIfNotExist=true&useUnicode=true&characterEncoding=utf-8

hibernate.connection.username=root

hibernate.connection.password=

hibernate.hbm2ddl.auto=update

<dependency>

        <groupId>com.h2database</groupId>

        <artifactId>h2</artifactId>

        <version>1.0.20070304</version>

</dependency>

hibernate.dialect=org.hibernate.dialect.H2Dialect

hibernate.connection.driver_class=org.h2.Driver

hibernate.connection.url=jdbc:h2:trails

hibernate.connection.username=sa

hibernate.connection.password=

hibernate.hbm2ddl.auto=update

<dependency>

        <groupId>com.oracle</groupId>

        <artifactId>ojdbc14</artifactId>

        <version>10.2.0.2.0</version>

</dependency>

hibernate.dialect=org.hibernate.dialect.Oracle9Dialect

hibernate.connection.driver_class=oracle.jdbc.OracleDriver

hibernate.connection.url=jdbc:oracle:thin:@localhost:1521:XE

hibernate.connection.username=system

hibernate.connection.password=system

hibernate.hbm2ddl.auto=update

# The Oracle JDBC driver doesn‘t like prepared statement caching very much.

hibernate.statement_cache.size=0

# or baching with BLOBs very much.

hibernate.jdbc.batch_size=0

# After a while, Oracle throws this exception: too many open cursors

# Disable PreparedStatement caching for the connection pool too.

# http://www.hibernate.org/120.html#A10

hibernate.dbcp.ps.maxIdle = 0

# Stoping hibernate from using the column-names in queries to retrieve data from the resultsets

# More info in http://www.jroller.com/page/dashorst?entry=hibernate_3_1_something_performance1

hibernate.jdbc.wrap_result_sets=true

<dependency>

        <groupId>postgresql</groupId>

        <artifactId>postgresql</artifactId>

        <version>8.2-504.jdbc3</version>

</dependency>

hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect

hibernate.connection.driver_class=org.postgresql.Driver

hibernate.connection.url=jdbc:postgresql://localhost/trails

hibernate.connection.username=postgres

hibernate.connection.password=postgres

hibernate.hbm2ddl.auto=update

<dependency>

        <groupId>net.sourceforge.jtds</groupId>

        <artifactId>jtds</artifactId>

        <version>1.2</version>

</dependency>

hibernate.dialect=org.hibernate.dialect.SQLServerDialect

hibernate.connection.driver_class=net.sourceforge.jtds.jdbc.Driver

hibernate.connection.url=jdbc:jtds:sqlserver://localhost:1433/trails

hibernate.connection.username=sa

hibernate.connection.password=

hibernate.hbm2ddl.auto=update

<dependency>

        <groupId>hsqldb</groupId>

        <artifactId>hsqldb</artifactId>

        <version>1.8.0.7</version>

</dependency>

hibernate.dialect=org.hibernate.dialect.HSQLDialect

hibernate.connection.driver_class=org.hsqldb.jdbcDriver

hibernate.connection.url=jdbc:hsqldb:trails;shutdown=true

hibernate.connection.username=sa

hibernate.connection.password=

hibernate.hbm2ddl.auto=update