JBoss5.1 mysql连接池

Question

我使用的是JBoss5.1.0.GA、MySQL 5.5和Hibernate 3.3.1GA(包含在JBOSS中)+ Spring。

我的问题是，我是否需要在spring/hibernate配置中为连接池添加c3p0作为数据源，还是JBossMySQL-ds.xml设置中的设置足够多。

mysql-ds.xml如下所示：

<datasources>
  <local-tx-datasource>
    <jndi-name>MySqlDS</jndi-name>
    <connection-url>jdbc:mysql://localhost:3306/ecotrak</connection-url>
    <driver-class>com.mysql.jdbc.Driver</driver-class>
    <user-name>ecotrak</user-name>
    <password>ecotrak</password>
    <min-pool-size>5</min-pool-size>
    <max-pool-size>20</max-pool-size>
    <idle-timeout-minutes>5</idle-timeout-minutes>
    <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
    <!-- should only be used on drivers after 3.22.1 with "ping" support    -->
    <valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker</valid-connection-checker-class-name>

    <!-- sql to call when connection is created
    <new-connection-sql>some arbitrary sql</new-connection-sql>
      -->
    <!-- sql to call on an existing pooled connection when it is obtained from pool - MySQLValidConnectionChecker is preferred for newer drivers
    <check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql>
      -->

    <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
    <metadata>
       <type-mapping>mySQL</type-mapping>
    </metadata>
  </local-tx-datasource>
</datasources>

Answer 1

JBoss DataSource有自己的连接池，从部署在其上的spring应用程序来看，只需使用jndi数据源就可以了。

http://pro-programmers.blogspot.com/2008/07/spring-datasource-jndi-lookup-from.html