Can you double check if there's more to the exception?
The exception you pasted doesn't include the cause exception which would usually indicate the actual problem.
Without that, it's hard to say what the problem is.
On Thu, Jul 21, 2016 at 12:20 PM Carl Andin Michel Sanon <ingscam@gmail.com> wrote:
Hi Vadim,
this is the full exception from the server before i throw my own exception.
javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1387)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1310)
at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:273)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
On Thursday, July 14, 2016 at 10:02:31 AM UTC-4, Carl Andin Michel Sanon wrote:--Hi everyone,
i read everything in https://cloud.google.com/sql/docs/app-engine-connect also in https://developers.google.com/eclipse/docs/cloudsql-jpatools but i cannot connect to cloud SQL 2nd generation using hibernate+jpa on GAE. Please i want some additional explanation and some example to do it right.
i already have a web application running in GAE and connect to cloud sql 1rst generation, look at my persistence file using for the first generation below .
Now, what change to do in this persistence file to make it work with cloud sql 2nd generation please?
Best Regards.
<properties>
<property name="javax.persistence.jdbc.driver" value="com.google.appengine.api.rdbms.AppEngineDriver" />
<property name="javax.persistence.jdbc.url" value="jdbc:google:rdbms://myapps-web:apps/db" />
<property name="javax.persistence.validation.mode" value="NONE"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
<property name="hibernate.connection.pool_size" value="0" />
<property name="hibernate.connection.useUnicode" value="true"/>
<property name="hibernate.connection.charSet" value="UTF-8"/>
<property name="hibernate.bytecode.provider" value="javassist"/>
<!-- <property name="hibernate.bytecode.use_reflection_optimizer" value="true"/> -->
<property name="hibernate.jdbc.use_streams_for_binary" value="true"/>
<property name="hibernate.cache.use_query_cache" value="false"/>
<property name="hibernate.cache.use_second_level_cache" value="false"/>
<!-- PROD -->
<property name="hibernate.show_sql" value="false"/>
<!-- <property name="hibernate.format_sql" value="false"/> -->
<!-- <property name="hibernate.generate_statistics" value="false"/> -->
<!-- <property name="hibernate.use_sql_comments" value="false"/> -->
</properties>
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