Glassfish容器管理的数据库位置

Question

I have a glassfish container managed derby database that I can access using CRUD operations. I would like to access my derby database directly through the asadmin tool to view the tables.

However, I cannot find my database.

After researching this site i see that glassfish creates connection pools that connect only when required. I see that it is possible for me to create a connection pool but I don't even know where the database is.

Any advice is greatly appreciated. I am new to JEE7 and learning from 'JEE7 for beginners' book.

<persistence-unit name="chapter15PU" transaction-type="JTA">
    <jta-data-source>jdbc/__default</jta-data-source>
    <properties>
        <property name="javax.persistence.schema-generation.database.action" value="drop-and-    create"/>
        <property name="eclipselink.logging.level" value="INFO"/>
    </properties>
</persistence-unit>

Answer 1

To connect using derby ij command line tool use the following command:

connect 'jdbc:derby://localhost:1527/sun-appserv-samples';

'sun-appserv-samples' is the default Glassfish container managed db name.

As follows;

Oracle documentation on domain.xml file

If you specify that you're database is to be container managed and you are using Glassfish, then all of the database properties can be found in the domain.xml file.

For example, if you are using the default glassfish domain named domain1, then you must navigate to ..glassfish/domains/domain1 on you're file system. The domain.xml file can be found in the config folder.

Here you will find the following information detailing all of you're database properties.

<property name="PortNumber" value="1527"></property>
<property name="Password" value="APP"></property>
<property name="User" value="APP"></property>
<property name="serverName" value="localhost"></property>
<property name="DatabaseName" value="sun-appserv-samples"></property>
<property name="connectionAttributes" value=";create=true"></property>

As you can see the default database name is sun-appserv-samples.

To connect to this database you must open the command tool ij which can be found in you're derby bin folder. Then use the following command to connect to the database.

connect 'jdbc:derby://localhost:1527/sun-appserv-samples';

Note: You must have derby running and you're java web application deployed on Glassfish first.

Answer 2

我不确定您是否可以直接访问内存中的derby数据库。