Java SE + Spring Data + Hibernate

我正在尝试使用Spring Data + Hibernate启动Java SE应用程序，并且到目前为止完成了以下操作：

配置文件

@Configuration @PropertySource("classpath:hibernate.properties") @EnableJpaRepositories @EnableTransactionManagement public class JpaConfiguration { private static final String PROPERTY_NAME_DATABASE_DRIVER = "db.driver"; private static final String PROPERTY_NAME_DATABASE_PASSWORD = "db.password"; private static final String PROPERTY_NAME_DATABASE_URL = "db.url"; private static final String PROPERTY_NAME_DATABASE_USERNAME = "db.username"; private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect"; private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql"; private static final String PROPERTY_NAME_ENTITYMANAGER_PACKAGES_TO_SCAN = "entitymanager.packages.to.scan"; @Resource private Environment env; @Bean public DataSource dataSource() { DriverManagerDataSource dataSource = new DriverManagerDataSource(); dataSource.setDriverClassName( env.getRequiredProperty(PROPERTY_NAME_DATABASE_DRIVER)); dataSource.setUrl(env.getRequiredProperty(PROPERTY_NAME_DATABASE_URL)); dataSource.setUsername(env.getRequiredProperty(PROPERTY_NAME_DATABASE_USERNAME)); dataSource.setPassword(env.getRequiredProperty(PROPERTY_NAME_DATABASE_PASSWORD)); return dataSource; } @Bean public LocalContainerEntityManagerFactoryBean entityManagerFactory() { LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean(); entityManagerFactoryBean.setDataSource(dataSource()); entityManagerFactoryBean.setPersistenceProviderClass(org.hibernate .jpa.HibernatePersistenceProvider.class); entityManagerFactoryBean.setPackagesToScan(env. getRequiredProperty(PROPERTY_NAME_ENTITYMANAGER_PACKAGES_TO_SCAN)); entityManagerFactoryBean.setJpaProperties(hibProperties()); return entityManagerFactoryBean; } private Properties hibProperties() { Properties properties = new Properties(); properties.put(PROPERTY_NAME_HIBERNATE_DIALECT, env.getRequiredProperty(PROPERTY_NAME_HIBERNATE_DIALECT)); properties.put(PROPERTY_NAME_HIBERNATE_SHOW_SQL, env.getRequiredProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL)); return properties; } @Bean public JpaTransactionManager transactionManager() { JpaTransactionManager transactionManager = new JpaTransactionManager(); transactionManager.setEntityManagerFactory(entityManagerFactory().getObject()); return transactionManager; } @Bean public MainBean mainBean() { return new MainBean(); } } 

开始上课

 public class Start { private static final String CONFIG_PACKAGE = "org.app.config"; public static void main(String[] args) { try (AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext()) { ctx.scan(CONFIG_PACKAGE); ctx.refresh(); MainBean bean = ctx.getBean(MainBean.class); bean.start(); } } } 

主豆

 public class MainBean { public void start() { System.out.println("Application Started. . ."); } } 

但是我得到以下exception

 Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [C:\MyPath\target\classes\org\app\config\JpaConfiguration.class]; nested exception is java.lang.IllegalArgumentException at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:281) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.scan(ClassPathBeanDefinitionScanner.java:220) at org.springframework.context.annotation.AnnotationConfigApplicationContext.scan(AnnotationConfigApplicationContext.java:153) at org.app.Start.main(Start.java:25) Caused by: java.lang.IllegalArgumentException at org.springframework.asm.ClassReader.(Unknown Source) at org.springframework.asm.ClassReader.(Unknown Source) at org.springframework.asm.ClassReader.(Unknown Source) at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:52) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:80) at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:101) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:257) ... 4 more 

任何人都知道我做错了什么？

Answer 1

您看到的exception不太可能是由无效的Spring配置引起的，而是您的类路径设置。 这感觉就像ASM库和Java 8的版本不兼容。已知Spring 3.2依赖的ASM版本与Java 8不兼容。

因此，如果您希望使用Java 8运行代码，则需要使用最新的Spring 4.0版本。

Answer 2

我也遇到了与Spring-3.2.0和Java 8（jdk1.8.0_60）相同的问题。 使用3.2.14发布的spring框架后，它可以工作。