5
私は別のインメモリデータソースを使用して、複数の永続性ユニットとJPA構成を構築してるでは動作しませんが、構成がエンティティマネージャファクトリBeanの資格データソースを解決失敗します次のエラーと：ここ春は、データソース
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APPLICATION FAILED TO START
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Description:
Parameter 0 of method emfb in datasources.Application$PersistenceConfiguration required a single bean, but 2 were found:
- ds1: defined by method 'ds1' in class path resource [datasources/Application$PersistenceConfiguration.class]
- ds2: defined by method 'ds2' in class path resource [datasources/Application$PersistenceConfiguration.class]
Action:
Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed
は、サンプルアプリケーション
package datasources;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import javax.sql.DataSource;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import org.apache.log4j.Logger;
import org.glassfish.jersey.server.ResourceConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.transaction.jta.JtaAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.stereotype.Component;
@Configuration
@EnableAutoConfiguration(exclude = {
// HibernateJpaAutoConfiguration.class,
// DataSourceAutoConfiguration.class
JtaAutoConfiguration.class
})
@ComponentScan
public class Application {
public static void main(String[] args) {
new SpringApplicationBuilder(Application.class)
.build()
.run(args);
}
@Component
@Path("/ds")
public static class DsApi {
private final static Logger logger = Logger.getLogger(DsApi.class);
@Autowired(required = false)
@Qualifier("ds1")
private DataSource ds;
@GET
public String ds() {
logger.info("ds");
return ds.toString();
}
}
@Component
@Path("/em")
public static class EmApi {
private final static Logger logger = Logger.getLogger(EmApi.class);
@PersistenceContext(unitName = "ds2", type = PersistenceContextType.TRANSACTION)
private EntityManager em;
@GET
public String em() {
logger.info("em");
return em.toString();
}
}
@Configuration
@ApplicationPath("/jersey")
public static class JerseyConfig extends ResourceConfig {
public JerseyConfig() {
register(DsApi.class);
register(EmApi.class);
}
}
@Configuration
public static class PersistenceConfiguration {
@Bean
@Qualifier("ds1")
public DataSource ds1() {
return new EmbeddedDatabaseBuilder().build();
}
@Bean
@Qualifier("ds2")
public DataSource ds2() {
return new EmbeddedDatabaseBuilder().build();
}
@Bean
@Primary
@Autowired
public LocalContainerEntityManagerFactoryBean emfb(@Qualifier("ds1") DataSource ds, EntityManagerFactoryBuilder emfb) {
return emfb.dataSource(ds)
.packages(Application.class)
.persistenceUnit("ds1")
.build();
}
@Bean
@Autowired
public LocalContainerEntityManagerFactoryBean emfb2(@Qualifier("ds2") DataSource ds, EntityManagerFactoryBuilder emfb) {
return emfb.dataSource(ds)
.packages(Application.class)
.persistenceUnit("ds2")
.build();
}
}
}
それは静的クラスで動作していない可能性がありますか？ – Patrick
これらのDataSource Beanを任意の型に置き換えようとしたときに、依存関係が正しく解決されたため、できませんでした。また、同じエラーで手動でインスタンス化されたDataSource（Builderなし）を返そうとしました。 –