springboot - 初始化 eclipseLink bean

Question

我有这个配置bean：

@EnableTransactionManagement
@EnableJpaRepositories({ "com.soib.repositories",
        "com.notification.repositories"})
@Slf4j
@Configuration
public class EclipseLinkJpaConfiguration extends JpaBaseConfiguration {

    protected EclipseLinkJpaConfiguration(
            DataSource dataSource,
            JpaProperties properties,
            ObjectProvider<JtaTransactionManager> jtaTransactionManager) {

        super(dataSource, properties, jtaTransactionManager);
    }

    @Override
    protected AbstractJpaVendorAdapter createJpaVendorAdapter() {
        return new EclipseLinkJpaVendorAdapter();
    }

    @Bean
    @Primary
    public static JpaProperties properties() {
        final JpaProperties jpaProperties = new JpaProperties();
        jpaProperties.setShowSql(false);
        jpaProperties.setDatabasePlatform("org.eclipse.persistence.platform.database.OraclePlatform");
        return jpaProperties;
    }

    @Override
    protected Map<String, Object> getVendorProperties() {
        HashMap<String, Object> map = new HashMap<>();
        map.put(PersistenceUnitProperties.WEAVING, detectWeavingMode());
        return map;
    }

    private String detectWeavingMode() {
        return InstrumentationLoadTimeWeaver.isInstrumentationAvailable() ? "true" : "static";
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource, JpaVendorAdapter jpaVendorAdapter) {
        LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
        factoryBean.setDataSource(dataSource);
        factoryBean.setPersistenceUnitName("soib-backoffice-entities");
        factoryBean.setPackagesToScan("eu.europa.ec.oib.kwbo.model");
        factoryBean.setJpaVendorAdapter(jpaVendorAdapter);

        Properties jpaProperties = new Properties();
        jpaProperties.setProperty("eclipselink.target-database", "org.eclipse.persistence.platform.database.OraclePlatform");
        jpaProperties.setProperty("eclipselink.target-server", "WebLogic");
        jpaProperties.setProperty("eclipselink.logging.level", "WARNING");
        jpaProperties.setProperty("eclipselink.logging.level.sql", "WARNING");
        jpaProperties.setProperty("eclipselink.logging.logger", "DefaultLogger");
        jpaProperties.setProperty("eclipselink.cache.shared.default", "false");
        jpaProperties.setProperty("eclipselink.weaving", "false");
        jpaProperties.setProperty("eclipselink.jdbc.fetch-size", "200");

        factoryBean.setJpaProperties(jpaProperties);

        return factoryBean;
    }

    @Bean
    public JpaVendorAdapter jpaVendorAdapter() {
        EclipseLinkJpaVendorAdapter vendorAdapter = new EclipseLinkJpaVendorAdapter();
        vendorAdapter.setShowSql(false);
        vendorAdapter.setGenerateDdl(false);
        vendorAdapter.setDatabasePlatform("org.eclipse.persistence.platform.database.OraclePlatform");
        return vendorAdapter;
    }
}

但是当我启动应用程序时，出现此错误：

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#a30810': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:342)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:113)
    at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:688)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:505)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:374)
    ... 58 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:874)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1358)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:309)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:330)

在我的

application.properties:

# JPA general settings
spring.jpa.show-sql=false
spring.jpa.generate-ddl=false
spring.jpa.database-platform=org.eclipse.persistence.platform.database.OraclePlatform

# EclipseLink-specific properties
spring.jpa.properties.eclipselink.target-database=org.eclipse.persistence.platform.database.OraclePlatform
spring.jpa.properties.eclipselink.target-server=WebLogic
spring.jpa.properties.eclipselink.logging.level=WARNING
spring.jpa.properties.eclipselink.logging.level.sql=WARNING
spring.jpa.properties.eclipselink.logging.logger=DefaultLogger
spring.jpa.properties.eclipselink.cache.shared.default=false
spring.jpa.properties.eclipselink.weaving=false
spring.jpa.properties.eclipselink.jdbc.fetch-size=200

Answer 1

我同意 M. Denium 的观点。如果您提供自定义 JPA 配置，则

spring.jpa

属性是无用的。

您必须创建并提供自定义

PlatformTransactionManager

和

LocalContainerEntityManagerFactoryBean

以进行自定义 JPA 配置。

修改为：

import jakarta.persistence.EntityManagerFactory;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;
import java.util.Properties;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = {"com.soib.repositories", "com.notification.repositories"}, transactionManagerRef = "customTransactionManager")
@Slf4j
public class EclipseLinkJPAConfiguration {

    @Autowired
    private DataSource dataSource;

    @Bean
    public JpaVendorAdapter jpaVendorAdapter() {
        EclipseLinkJpaVendorAdapter vendorAdapter = new EclipseLinkJpaVendorAdapter();
        vendorAdapter.setShowSql(false);
        vendorAdapter.setGenerateDdl(false);
        vendorAdapter.setDatabasePlatform("org.eclipse.persistence.platform.database.OraclePlatform");
        return vendorAdapter;
    }

    private String detectWeavingMode() {
        return InstrumentationLoadTimeWeaver.isInstrumentationAvailable() ? "true" : "static";
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(JpaVendorAdapter jpaVendorAdapter) {
        LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
        factoryBean.setDataSource(dataSource);
        factoryBean.setPersistenceUnitName("soib-backoffice-entities");
        factoryBean.setPackagesToScan("eu.europa.ec.oib.kwbo.model");
        factoryBean.setJpaVendorAdapter(jpaVendorAdapter);
        factoryBean.setJpaProperties(jpaProperties());
        return factoryBean;
    }

    private Properties jpaProperties() {
        Properties jpaProperties = new Properties();
        jpaProperties.setProperty("eclipselink.target-database", "org.eclipse.persistence.platform.database.OraclePlatform");
        jpaProperties.setProperty("eclipselink.target-server", "WebLogic");
        jpaProperties.setProperty("eclipselink.logging.level", "WARNING");
        jpaProperties.setProperty("eclipselink.logging.level.sql", "WARNING");
        jpaProperties.setProperty("eclipselink.logging.logger", "DefaultLogger");
        jpaProperties.setProperty("eclipselink.cache.shared.default", "false");
        jpaProperties.setProperty("eclipselink.weaving", "false");
        jpaProperties.setProperty("eclipselink.jdbc.fetch-size", "200");
        return jpaProperties;
    }

    @Bean
    public EntityManagerFactory entityManagerFactory(LocalContainerEntityManagerFactoryBean entityManagerFactory) {
        return entityManagerFactory.getObject();
    }

    @Bean
    public PlatformTransactionManager customTransactionManager(EntityManagerFactory entityManagerFactory) {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory);
        return transactionManager;
    }

}

看看这是否有帮助。

注意：当你进行DAO操作时，如果你想使用自定义事务管理器，那么你必须这样做：

@Transactional(transactionManager = "customTransactionManager")

看看这是否有帮助。