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Utilizar SQLite3 com JPA2 e Hibernate em persistence.xml

Referente ao curso Java e JPA: persista seus objetos com a JPA2 e Hibernate

por perciliano
| 136.8k xp | 15 posts

Olá, já utilizo o SQLite3 com R, gostaria de aproveitar esta base no treinamento de JPA Hibernate, há um exemplo de conexao via configuração do Hibernate - persistence unit?

Att,

Carlos

5 respostas
por Manoel de Souza Silva Lima
| 589.8k xp | 464 posts
Analista Judiciário - Analista de Sistemas

Olá, Perciliano!

Tenta esse no seu persistence.xml:

<persistence xmlns="http://java.sun.com/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
             version="2.0">

<persistence-unit name="NOME_DO_SEU_PERSISTENCE_UNIT">
    <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
        <properties>
            <property name="dialect" value="org.hibernate.dialect.SQLiteDialect" />
            <property name="javax.persistence.jdbc.driver" value="org.sqlite.JDBC" />
            <property name="javax.persistence.jdbc.url" value="jdbc:sqlite::memory:" />
            <property name="javax.persistence.jdbc.user" value="SEU_USUARIO" />
            <property name="javax.persistence.jdbc.password" value="SUA_SENHA" />
            <property name="hibernate.hbm2ddl.auto" value="create" />
        </properties>
    </persistence-unit>
</persistence>

Os campos em maiúsculos devem ser substituídos pelas tuas configurações.

Qualquer coisa, só postar.

Abraço.

por perciliano
| 136.8k xp | 15 posts

Esou tentando usar em arquivo, segue configuraçao:

JDBC acessa, JPA da erro; sqlite-jdbc-3.21.0.jar 

Exception in thread "main" java.lang.ExceptionInInitializerError
    at br.com.perciliano.financas.teste.TesteConta.main(TesteConta.java:16)
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:271)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:242)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:861)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:888)
    at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:58)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
    at br.com.perciliano.financas.util.JPAUtil.<clinit>(JPAUtil.java:8)
    ... 1 more
Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [org.hibernate.dialect.SQLiteDialect] as strategy [org.hibernate.dialect.Dialect]
    at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor(StrategySelectorImpl.java:126)
    at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveStrategy(StrategySelectorImpl.java:194)
    at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveDefaultableStrategy(StrategySelectorImpl.java:152)
    at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveDefaultableStrategy(StrategySelectorImpl.java:139)
    at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveStrategy(StrategySelectorImpl.java:133)
    at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:74)
    at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:51)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:137)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:259)
    ... 15 more
por perciliano
| 136.8k xp | 15 posts
 <persistence-unit name="financas">

        <!-- Implementação do JPA, no nosso caso Hibernate -->
        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>

        <!-- Aqui são listadas todas as entidades -->
        <class>br.com.perciliano.financas.modelo.Conta</class>

        <properties>    
            <property name="hibernate.archive.autodetection" value="class" />
            <!-- Propriedades JDBC -->
            <property name="javax.persistence.jdbc.driver" value="org.sqlite.JDBC" />
            <property name="javax.persistence.jdbc.url" value="jdbc:sqlite:C:/Users/perciliano/workspace/financas/financas.db" />
            <property name="javax.persistence.jdbc.user" value="" />
            <property name="javax.persistence.jdbc.password" value="" />
            <property name="hibernate.connection.autocommit" value="true"/>

            <!-- Configurações específicas do Hibernate -->
            <property name="hibernate.dialect" value="org.hibernate.dialect.SQLiteDialect" />
            <property name="hibernate.hbm2ddl.auto" value="create" />
            <property name="hibernate.show_sql" value="true" />
        </properties>
    </persistence-unit>
por Caio
| 186.7k xp | 104 posts
Instrutor Desenvolvedor

Oi perciliano, tudo bem? Tente esse, e não se esqueça de colocar seu user e password

<persistence xmlns="http://java.sun.com/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
             version="2.0">

    <persistence-unit name="financas">
        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
        <class>br.com.perciliano.financas.modelo.Conta</class>

        <properties>
            <property name="dialect" value="org.hibernate.dialect.SQLiteDialect" />
            <property name="javax.persistence.jdbc.driver" value="org.sqlite.JDBC" />
            <property name="javax.persistence.jdbc.url" value="jdbc:sqlite::memory:" />
            <property name="javax.persistence.jdbc.user" value="USER" />
            <property name="javax.persistence.jdbc.password" value="PASSWORD" />
            <property name="hibernate.show_sql" value="true" />
            <property name="format_sql" value="true" />
            <property name="hibernate.connection.charSet" value="UTF-8" />
            <property name="hibernate.hbm2ddl.auto" value="create" />
        </properties>
    </persistence-unit>
</persistence>
por perciliano
| 136.8k xp | 15 posts

Obrigado Caio, fiz um teste e não deu certo! ainda não sei o que pode estar errado, vou encerrar este topico para dar andamento usando o HSQLDB por enquanto.

Uso o SQLite com outra ferramenta e gostaria de compartilhar o banco de dados. usando uma conexao direta ao arquivo do banco, depois retorno no assunto...