各数据库连接maven配置 各种数据库Hibernate链接配置

<           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

MySQL throws an EOFException when the database connection has been closed after the lease has expired, but it works again on subsequent requests.
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           >