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我有一個簡單的Spring Boot應用程序與2個外部罐子。每個jar使用Spring JPA並完全配置爲獨立工作。春季啓動與多個數據源和外部配置，春季JPA
Jar1
JPA庫
@Repository
public interface QuarterRepository extends JpaRepository<Quarter, Long>{
}
實體
@Entity
public class Quarter implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;...
配置
@Configuration
@Import({RepositoryConfig.class})
public class OnlineJpaAppConfig{
@Bean(name = "onlinejpaAppConfigConfigurer")
public static PropertyPlaceholderConfigurer getPropertyPlaceholderConfigurer() {
PropertyPlaceholderConfigurer ppc = new PropertyPlaceholderConfigurer();
ppc.setLocation(new ClassPathResource("/de/comp/onlinejpa/application.properties"));
ppc.setIgnoreUnresolvablePlaceholders(true);
return ppc;
}
}
@Configuration
@EnableJpaRepositories(basePackages = {"de.comp.onlinejpa.repository"},
entityManagerFactoryRef = "onlinejpaentityManagerFactory",
transactionManagerRef = "onlinejpaTransactionManager")
@EnableTransactionManagement
public class RepositoryConfig {
@Value("${jdbc.driverClassName}")
private String driverClassName;
@Value("${jdbc.url}")
private String url;
@Value("${jdbc.username}")
private String username;
@Value("${jdbc.password}")
private String password;
@Value("${hibernate.dialect}")
private String hibernateDialect;
@Value("${hibernate.show_sql}")
private String hibernateShowSql;
@Value("${hibernate.hbm2ddl.auto}")
private String hibernateHbm2ddlAuto;
private static final String QUALIFIER = "onlinejpa";
@Bean(name = "onlinejpaentityManagerFactory")
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan(new String[]{"de.comp.onlinejpa.entity"});
em.setPersistenceUnitName("onlinejpa");
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
em.setJpaProperties(additionalProperties());
return em;
}
@Bean(name = "onlinejpaDataSource")
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(driverClassName);
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
return dataSource;
}
@Bean(name = "onlinejpaTransactionManager")
public PlatformTransactionManager transactionManager(@Qualifier(value = "onlinejpaentityManagerFactory") EntityManagerFactory onlinejpaentityManagerFactory) {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(onlinejpaentityManagerFactory);
return transactionManager;
}
@Bean(name = "onlinejpaExceptionTranslation")
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
Properties additionalProperties() {
Properties properties = new Properties();
properties.setProperty("hibernate.hbm2ddl.auto", hibernateHbm2ddlAuto);
properties.setProperty("hibernate.dialect", hibernateDialect);
return properties;
}
}
第二罐子看起來幾乎一樣Jar1，除了Bean和包名
@EnableJpaRepositories(basePackages = {"de.comp.aisjpa.repository"},
entityManagerFactoryRef = "aisjpaentityManagerFactory",
transactionManagerRef = "aisjpatransactionManager")
@EnableTransactionManagement
public class RepositoryConfig {
@Value("${jdbc.driverClassName}")
private String driverClassName;
@Value("${jdbc.url}")
private String url;
@Value("${jdbc.username}")
private String username;
@Value("${jdbc.password}")
private String password;
@Value("${hibernate.dialect}")
private String hibernateDialect;
@Value("${hibernate.show_sql}")
private String hibernateShowSql;
@Value("${hibernate.hbm2ddl.auto}")
private String hibernateHbm2ddlAuto;
private static final String QUALIFIER = "aisjpa";
@Bean(name = "aisjpaentityManagerFactory")
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(aisdataSource());
em.setPackagesToScan(new String[]{"de.comp.aisjpa.entity"});
em.setPersistenceUnitName("ais");
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
em.setJpaProperties(additionalProperties());
return em;
}
@Bean(name = "aisjpadatasource")
public DataSource aisdataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(driverClassName);
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
return dataSource;
}
@Bean(name = "aisjpatransactionManager")
public PlatformTransactionManager transactionManager(@Qualifier(value = "aisjpaentityManagerFactory") EntityManagerFactory aisjpaentityManagerFactory) {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(aisjpaentityManagerFactory);
return transactionManager;
}
@Bean(name = "aisjpaexceptionTranslation")
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
Properties additionalProperties() {
Properties properties = new Properties();
properties.setProperty("hibernate.hbm2ddl.auto", hibernateHbm2ddlAuto);
properties.setProperty("hibernate.dialect", hibernateDialect);
return properties;
}
}
運行在Jar1這個主類提供了預期的效果。（同爲Jar2）
public class App {
public static void main(String[] args) {
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(OnlineJpaAppConfig.class);
QuarterRepository quarterRepository = ctx.getBean("quarterRepository", QuarterRepository.class);
List<Quarter> quarters = quarterRepository.findAll();
for (Quarter quarter : quarters) {
System.out.println(quarter.getQuarter());
}
}
}
這是啓動類我的春節，啓動應用程序
@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class,
HibernateJpaAutoConfiguration.class,
DataSourceTransactionManagerAutoConfiguration.class })
@Import({ KVLdapAppConfig.class, OnlineJpaAppConfig.class,AISAppConfig.class})
public class ServerApplication {
public static void main(String[] args) {
SpringApplication.run(ServerApplication.class, args);
}
}
服務器開始機智的hout的問題，但在配置jpa的東西時出現了一些問題。持久性單元ais的配置應使用Oracle方言和驅動程序。它似乎拿起了Jar1的配置。
Building JPA container EntityManagerFactory for persistence unit 'onlinejpa'
HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
HHH000412: Hibernate Core {4.2.0.Final}
HHH000206: hibernate.properties not found
HHH000021: Bytecode provider name : javassist
HHH000204: Processing PersistenceUnitInfo [
HHH000130: Instantiating explicit connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider
HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
HHH000268: Transaction strategy: org.hibernate.engine.transaction.internal.jdbc.JdbcTransactionFactory
HHH000397: Using ASTQueryTranslatorFactory
Loaded JDBC driver: com.mysql.jdbc.Driver
Building JPA container EntityManagerFactory for persistence unit 'ais'
HHH000204: Processing PersistenceUnitInfo [
HHH000130: Instantiating explicit connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider
HHH000400: Using dialect: **org.hibernate.dialect.MySQL5Dialect**
HHH000268: Transaction strategy: org.hibernate.engine.transaction.internal.jdbc.JdbcTransactionFactory
HHH000397: Using ASTQueryTranslatorFactory
Loaded JDBC driver: com.mysql.jdbc.Driver
下一個問題是數據庫訪問。春天犯規知道它應該使用的事務管理器
: No qualifying bean of type [org.springframework.transaction.PlatformTransactionManager] is defined: expected single matching bean but found 2: aisjpatransactionManager,onlinejpaTransactionManager
設置一個TX經理爲@Primary解決了上述問題，但與其他的lib未發現表，錯誤配置TX經理/持久性單元的原因結束。
也許我的問題是LocalContainerEntityManagerFactoryBean的每個單獨的jar的創建。相反，我應該使用下面的代碼來設置我的數據庫連接，但這會打破我個人的庫。
public LocalContainerEntityManagerFactoryBean internalEntityManagerFactory(
EntityManagerFactoryBuilder builder) {
Map<String, Object> properties = new HashMap<String, Object>();
properties.put("hibernate.hbm2ddl.auto", "create");
return builder
.dataSource(internalDataSource())
.packages("package here")
.persistenceUnit("onlinjpa")
.properties(properties)
.build();
}
我怎樣才能讓每一個人罐子的春天啓動的應用程序內工作。
這裏是一個鏈接，用Sping Boot設置多個數據源，但我不想在Spring Boot應用程序中配置我的庫數據源。
Multiple data source and schema creation in Spring Boot