Spring JPA Config IllegalArgumentException:未找到具有名称的持久性单元
Spring JPA Config IllegalArgumentException: No persistence unit with name found
我遇到了一个奇怪的问题,我无法解决问题。我之前使用 JPA/Hibernate is Spring 没有 persistence.xml 文件,Spring 处理了一切。我正在开发一个新项目,这次我决定全部 Java 配置。我的 PersistenceConfig.java 有一些问题,它一直说找不到持久性单元。如果我注释掉设置 PersistenceUnitName 的行,那么它会抱怨 IllegalStateException: No persistence units parsed from {classpath*:META-INF/persistence.xml}.
我不明白为什么它在我使用 Java 配置时尝试使用 persistence.xml 而在我使用 XML 时却没有。任何解决方案?
这是我的 PersistenceConfig.java
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.lookup.JndiDataSourceLookup;
import org.springframework.orm.jpa.JpaDialect;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaDialect;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import java.util.Properties;
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = {"com.testapp.ots.repository"})
public class PersistenceConfig {
@Autowired
Environment environment;
@Bean(name = "datasource")
public DataSource dataSource() {
JndiDataSourceLookup dsLookup = new JndiDataSourceLookup();
dsLookup.setResourceRef(true);
return dsLookup.getDataSource("jdbc/postgres");
}
@Bean(name = "entityManagerFactory")
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setDataSource(dataSource());
entityManagerFactory.setPersistenceUnitName("postgres");
entityManagerFactory.setJpaProperties(jpaProperties());
entityManagerFactory.setJpaVendorAdapter(jpaVendorAdapter());
entityManagerFactory.setJpaDialect(jpaDialect());
return entityManagerFactory;
}
@Bean(name = "jpaVendorAdapter")
public JpaVendorAdapter jpaVendorAdapter() {
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setDatabasePlatform("org.hibernate.dialect.PostgreSQL9Dialect");
vendorAdapter.setGenerateDdl(true);
vendorAdapter.setShowSql(true);
return vendorAdapter;
}
@Bean(name = "jpaDialect")
public JpaDialect jpaDialect() {
return new HibernateJpaDialect();
}
@Bean(name = "transactionManager")
public PlatformTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
JpaTransactionManager jpaTransactionManager = new JpaTransactionManager(entityManagerFactory);
jpaTransactionManager.setDataSource(dataSource());
jpaTransactionManager.setJpaDialect(jpaDialect());
return jpaTransactionManager;
}
@Bean(name = "persistenceExceptionTranslation")
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
public Properties jpaProperties() {
Properties properties = new Properties();
properties.setProperty("hibernate.hbm2ddl.auto", environment.getProperty("hibernate.hbm2ddl.auto"));
properties.setProperty("hibernate.dialect", environment.getProperty("hibernate.dialect"));
properties.setProperty("hibernate.show_sql", environment.getProperty("hibernate.show_sql"));
properties.setProperty("hibernate.format_sql", environment.getProperty("hibernate.format_sql"));
properties.setProperty("hibernate.connection.charSet", environment.getProperty("hibernate.connection.charSet"));
properties.setProperty("hibernate.cache.use_second_level_cache", environment.getProperty("hibernate.cache.use_second_level_cache"));
properties.setProperty("hibernate.cache.use_query_cache", environment.getProperty("hibernate.cache.use_query_cache"));
properties.setProperty("hibernate.cache.use_structured_entries", environment.getProperty("hibernate.cache.use_structured_entries"));
properties.setProperty("hibernate.generate_statistics", environment.getProperty("hibernate.generate_statistics"));
return properties;
}
}
我几个月前使用的 XML 配置作为参考。
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<context:annotation-config />
<jpa:repositories base-package="net.jkratz.bloodpressure.api.repository" />
<jee:jndi-lookup jndi-name="jdbc/BloodPressureDB" id="dataSource" expected-type="javax.sql.DataSource" />
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="BPPersistenceUnit" />
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
<property name="jpaDialect" ref="jpaDialect" />
<property name="packagesToScan">
<list>
<value>net.jkratz.bloodpressure.api.model</value>
</list>
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.connection.charSet">${hibernate.connection.charSet}</prop>
</props>
</property>
</bean>
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="${jpa.vendor.database}" />
<property name="showSql" value="${jpa.vendor.showSql}"/>
<property name="generateDdl" value="${jpa.vendor.generateDdl}"/>
<property name="databasePlatform" value="${jpa.vendor.databasePlatform}"/>
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="dataSource" ref="dataSource" />
<property name="jpaDialect" ref="jpaDialect" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
来自 LocalEntityManagerFactoryBean 文档:
In case of Spring-based scanning, no persistence.xml is necessary; all
you need to do is to specify base packages to search here.
所以,尝试将您的 bean entityManagerFactory
更改为:
@Bean(name = "entityManagerFactory")
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setDataSource(dataSource());
entityManagerFactory.setPersistenceUnitName("postgres");
entityManagerFactory.setJpaProperties(jpaProperties());
entityManagerFactory.setJpaVendorAdapter(jpaVendorAdapter());
entityManagerFactory.setJpaDialect(jpaDialect());
entityManagerFactory.setPackagesToScan("net.jkratz.bloodpressure.api.model");
return entityManagerFactory;
}
我遇到了一个奇怪的问题,我无法解决问题。我之前使用 JPA/Hibernate is Spring 没有 persistence.xml 文件,Spring 处理了一切。我正在开发一个新项目,这次我决定全部 Java 配置。我的 PersistenceConfig.java 有一些问题,它一直说找不到持久性单元。如果我注释掉设置 PersistenceUnitName 的行,那么它会抱怨 IllegalStateException: No persistence units parsed from {classpath*:META-INF/persistence.xml}.
我不明白为什么它在我使用 Java 配置时尝试使用 persistence.xml 而在我使用 XML 时却没有。任何解决方案?
这是我的 PersistenceConfig.java
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.lookup.JndiDataSourceLookup;
import org.springframework.orm.jpa.JpaDialect;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaDialect;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import java.util.Properties;
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = {"com.testapp.ots.repository"})
public class PersistenceConfig {
@Autowired
Environment environment;
@Bean(name = "datasource")
public DataSource dataSource() {
JndiDataSourceLookup dsLookup = new JndiDataSourceLookup();
dsLookup.setResourceRef(true);
return dsLookup.getDataSource("jdbc/postgres");
}
@Bean(name = "entityManagerFactory")
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setDataSource(dataSource());
entityManagerFactory.setPersistenceUnitName("postgres");
entityManagerFactory.setJpaProperties(jpaProperties());
entityManagerFactory.setJpaVendorAdapter(jpaVendorAdapter());
entityManagerFactory.setJpaDialect(jpaDialect());
return entityManagerFactory;
}
@Bean(name = "jpaVendorAdapter")
public JpaVendorAdapter jpaVendorAdapter() {
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setDatabasePlatform("org.hibernate.dialect.PostgreSQL9Dialect");
vendorAdapter.setGenerateDdl(true);
vendorAdapter.setShowSql(true);
return vendorAdapter;
}
@Bean(name = "jpaDialect")
public JpaDialect jpaDialect() {
return new HibernateJpaDialect();
}
@Bean(name = "transactionManager")
public PlatformTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
JpaTransactionManager jpaTransactionManager = new JpaTransactionManager(entityManagerFactory);
jpaTransactionManager.setDataSource(dataSource());
jpaTransactionManager.setJpaDialect(jpaDialect());
return jpaTransactionManager;
}
@Bean(name = "persistenceExceptionTranslation")
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
public Properties jpaProperties() {
Properties properties = new Properties();
properties.setProperty("hibernate.hbm2ddl.auto", environment.getProperty("hibernate.hbm2ddl.auto"));
properties.setProperty("hibernate.dialect", environment.getProperty("hibernate.dialect"));
properties.setProperty("hibernate.show_sql", environment.getProperty("hibernate.show_sql"));
properties.setProperty("hibernate.format_sql", environment.getProperty("hibernate.format_sql"));
properties.setProperty("hibernate.connection.charSet", environment.getProperty("hibernate.connection.charSet"));
properties.setProperty("hibernate.cache.use_second_level_cache", environment.getProperty("hibernate.cache.use_second_level_cache"));
properties.setProperty("hibernate.cache.use_query_cache", environment.getProperty("hibernate.cache.use_query_cache"));
properties.setProperty("hibernate.cache.use_structured_entries", environment.getProperty("hibernate.cache.use_structured_entries"));
properties.setProperty("hibernate.generate_statistics", environment.getProperty("hibernate.generate_statistics"));
return properties;
}
}
我几个月前使用的 XML 配置作为参考。
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<context:annotation-config />
<jpa:repositories base-package="net.jkratz.bloodpressure.api.repository" />
<jee:jndi-lookup jndi-name="jdbc/BloodPressureDB" id="dataSource" expected-type="javax.sql.DataSource" />
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="BPPersistenceUnit" />
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
<property name="jpaDialect" ref="jpaDialect" />
<property name="packagesToScan">
<list>
<value>net.jkratz.bloodpressure.api.model</value>
</list>
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.connection.charSet">${hibernate.connection.charSet}</prop>
</props>
</property>
</bean>
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="${jpa.vendor.database}" />
<property name="showSql" value="${jpa.vendor.showSql}"/>
<property name="generateDdl" value="${jpa.vendor.generateDdl}"/>
<property name="databasePlatform" value="${jpa.vendor.databasePlatform}"/>
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="dataSource" ref="dataSource" />
<property name="jpaDialect" ref="jpaDialect" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
来自 LocalEntityManagerFactoryBean 文档:
In case of Spring-based scanning, no persistence.xml is necessary; all you need to do is to specify base packages to search here.
所以,尝试将您的 bean entityManagerFactory
更改为:
@Bean(name = "entityManagerFactory")
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setDataSource(dataSource());
entityManagerFactory.setPersistenceUnitName("postgres");
entityManagerFactory.setJpaProperties(jpaProperties());
entityManagerFactory.setJpaVendorAdapter(jpaVendorAdapter());
entityManagerFactory.setJpaDialect(jpaDialect());
entityManagerFactory.setPackagesToScan("net.jkratz.bloodpressure.api.model");
return entityManagerFactory;
}