我想使用您的Application Server内置功能管理多个DataSource，并使用JNDI访问它。我使用Spring JPA数据进行Spring启动。 我能够为单个数据源配置application.properties。但是在尝试对多个数据源执行相同操作时，我在启动应用程序时遇到异常。
启动tomcat服务器时出现异常： -
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1902f8f': Cannot resolve reference to bean 'entityManagerFactory' while settin
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:634)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:444)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1119)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1014)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:299)
... 115 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:687)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1168)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:281)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
... 123 more
请在下面找到代码示例
属性文件具有以下配置： -
datasource.primary.jndi-name=jdbc/employee
datasource.primary.expected-type=javax.sql.DataSource
datasource.secondary.jndi-name=jdbc/customer
datasource.secondary.expected-type=javax.sql.DataSource
我确信在context.xml文件中的配置： -
<Resource name="jdbc/customer" auth="Container" type="javax.sql.DataSource"
maxTotal="100" maxIdle="30" maxWaitMillis="10000"
username="root" password="root" driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/customer"/>
<Resource name="jdbc/employee" auth="Container" type="javax.sql.DataSource"
maxTotal="100" maxIdle="30" maxWaitMillis="10000"
username="root" password="root" driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/employee"/>
在Spring启动配置类中添加了以下内容： -
@SpringBootApplication(exclude = { DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class,
DataSourceTransactionManagerAutoConfiguration.class })
客户配置类： -
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
basePackages = "dao.repository.customer",
entityManagerFactoryRef = "customerEntityManager",
transactionManagerRef = "customerTransactionManager"
)
public class customerConfig {
@Bean
public LocalContainerEntityManagerFactoryBean customerEntityManager() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(customerDataSource());
em.setPackagesToScan(new String[] { "dao.entity.customer" });
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
return em;
}
@Bean
@ConfigurationProperties(prefix = "datasource.secondary")
public DataSource customerDataSource() {
final JndiDataSourceLookup dsLookup = new JndiDataSourceLookup();
dsLookup.setResourceRef(true);
DataSource dataSource = dsLookup.getDataSource("jdbc/customer");
return dataSource;
}
@Bean
public PlatformTransactionManager customerTransactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(customerEntityManager().getObject());
return transactionManager;
}
}
员工配置类
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
basePackages = "dao.repository.employee",
entityManagerFactoryRef = "employeeEntityManager",
transactionManagerRef = "employeeTransactionManager"
)
public class employeeConfig {
@Bean
@Primary
public LocalContainerEntityManagerFactoryBean employeeEntityManager() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(employeeDataSource());
em.setPackagesToScan(new String[] { "dao.entity.employee" });
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
return em;
}
@Bean
@Primary
@ConfigurationProperties(prefix = "datasource.primary")
public DataSource employeeDataSource() {
final JndiDataSourceLookup dsLookup = new JndiDataSourceLookup();
dsLookup.setResourceRef(true);
DataSource dataSource = dsLookup.getDataSource("jdbc/employee");
return dataSource;
}
@Bean
@Primary
public PlatformTransactionManager employeeTransactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(employeeEntityManager().getObject());
return transactionManager;
}
}
在实体类中，我提到了模式名称。
@Entity
@Table(schema="customer")
@NamedQuery(name = "User.findAll", query = "SELECT u FROM User u")
public class User implements Serializable {
.........
}
@Entity
@Table(schema="employee")
public class Project implements Serializable {
.........
}
更新
我对此有所了解但仍未解决。
Caused by: net.spy.memcached.OperationTimeoutException: Mutate operation timed out,unable to modify counter [validator.validatorCache.HibernateCacheTimestamperMemcachedImpl:timestamp]
at net.spy.memcached.MemcachedClient.mutate(MemcachedClient.java:1663) ~[spymemcached-2.10.2.jar:2.10.2]
at net.spy.memcached.MemcachedClient.mutateWithDefault(MemcachedClient.java:1835) ~[spymemcached-2.10.2.jar:2.10.2]
at net.spy.memcached.MemcachedClient.incr(MemcachedClient.java:1767) ~[spymemcached-2.10.2.jar:2.10.2]
at kr.pe.kwonnam.hibernate4memcached.spymemcached.SpyMemcachedAdapter.increaseCounter(SpyMemcachedAdapter.java:185) ~[hibernate4-memcached-spymemcached-adapter-0.7.jar:na]
at kr.pe.kwonnam.hibernate4memcached.timestamper.HibernateCacheTimestamperMemcachedImpl.next(HibernateCacheTimestamperMemcachedImpl.java:59) ~[hibernate4-memcached-core-0.7.jar:na]
at kr.pe.kwonnam.hibernate4memcached.Hibernate4MemcachedRegionFactory.nextTimestamp(Hibernate4MemcachedRegionFactory.java:127) ~[hibernate4-memcached-core-0.7.jar:na]
at org.hibernate.internal.SessionFactoryImpl$SessionBuilderImpl.openSession(SessionFactoryImpl.java:1589) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerImpl.internalGetSession(EntityManagerImpl.java:141) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerImpl.isOpen(EntityManagerImpl.java:165) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerImpl.checkOpen(EntityManagerImpl.java:101) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerImpl.checkOpen(EntityManagerImpl.java:96) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerImpl.getSession(EntityManagerImpl.java:111) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.setDefaultProperties(AbstractEntityManagerImpl.java:308) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.postInit(AbstractEntityManagerImpl.java:213) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerImpl.<init>(EntityManagerImpl.java:91) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.internalCreateEntityManager(EntityManagerFactoryImpl.java:345) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:313) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_20]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_20]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:388) ~[spring-orm-4.0.9.RELEASE.jar:4.0.9.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:541) ~[spring-orm-4.0.9.RELEA
at com.sun.proxy.$Proxy558.createEntityManager(Unknown Source) ~[na:na]
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:285) ~[spring-orm-4.0.9.RELEASE.jar:4.0.9.RELEASE
at com.sun.proxy.$Proxy559.getDelegate(Unknown Source) ~[na:na]
at org.springframework.data.jpa.provider.JpaClassUtils.isEntityManagerOfType(JpaClassUtils.java:46) ~[spring-data-jpa-1.8.0.RELEASE.jar:na]
at org.springframework.data.jpa.provider.PersistenceProvider.fromEntityManager(PersistenceProvider.java:296) ~[spring-data-jpa-1.8.0.RELEASE.jar:na]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.<init>(JpaRepositoryFactory.java:57) ~[spring-data-jpa-1.8.0.RELEASE.jar:na]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.createRepositoryFactory(JpaRepositoryFactoryBean.java:79) ~[spring-data-jpa-1.8.0.RELEASE.jar:na]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.doCreateRepositoryFactory(JpaRepositoryFactoryBean.java:69) ~[spring-data-jpa-1.8.0.RELEASE.jar:na]
at org.springframework.data.repository.core.support.TransactionalRepositoryFactoryBeanSupport.createRepositoryFactory(TransactionalRepositoryFactoryBeanSupport.java:72) ~[spring-data-
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:216) ~[spring-data-commons-1.10.0.RELEASE.jar:na]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92) ~[spring-data-jpa-1.8.0.RELEASE.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.REL
... 112 common frames omittedenter code here
enter code here
我将bwlo属性设置为LocalContainerEntityManagerFactoryBean对象： -
HashMap<String, Object> properties = new HashMap<String, Object>();
properties.put("hibernate.hbm2ddl.auto", "validate");
properties.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
properties.put("hibernate.cache.use_second_level_cache", "true");
properties.put("hibernate.cache.use_query_cache", "true");
properties.put("hibernate.cache.region.factory_class", "kr.pe.kwonnam.hibernate4memcached.Hibernate4MemcachedRegionFactory");
properties.put("hibernate.cache.default_cache_concurrency_strategy", "NONSTRICT_READ_WRITE");
properties.put("hibernate.cache.region_prefix", "userPersistenceUnit");
properties.put("hibernate.cache.use_structured_entries", "false");
properties.put("h4m.adapter.class", "kr.pe.kwonnam.hibernate4memcached.spymemcached.SpyMemcachedAdapter");
properties.put("h4m.timestamper.class", "kr.pe.kwonnam.hibernate4memcached.timestamper.HibernateCacheTimestamperMemcachedImpl");
properties.put("h4m.adapter.spymemcached.hosts", "localhost:11211");
properties.put("h4m.adapter.spymemcached.hashalgorithm", "KETAMA_HASH");
properties.put("h4m.adapter.spymemcached.operation.timeout.millis", "5000");
properties.put("h4m.adapter.spymemcached.transcoder", "kr.pe.kwonnam.hibernate4memcached.spymemcached.KryoTranscoder");
properties.put("h4m.adapter.spymemcached.cachekey.prefix", "validator");
properties.put("h4m.adapter.spymemcached.kryotranscoder.compression.threashold.bytes", "20000");
properties.put("h4m.expiry.seconds", "600");
properties.put("h4m.expiry.seconds.userPersistenceUnit.org.hibernate.cache.spi.UpdateTimestampsCache", "86400");
properties.put("h4m.expiry.seconds.userPersistenceUnit.org.hibernate.cache.internal.StandardQueryCache", "3600");
properties.put("h4m.expiry.seconds.userPersistenceUnit.users", "1800");
properties.put("h4m.expiry.seconds.userPersistenceUnit.certificates", "1800");
更新-II
Memcahe已启动并正在运行..
C:\windows\system32>netstat -na | find "11211"
TCP 0.0.0.0:11211 0.0.0.0:0 LISTENING
TCP [::]:11211 [::]:0 LISTENING
UDP 0.0.0.0:11211 *:*
应用程序日志，显示memcached正在运行。
16:20:25.893 [localhost-startStop-7] DEBUG u.c.o.s.v.d.config.CertificateConfig - Creating certificateDataSource
{h4m.expiry.seconds.userPersistenceUnit.users=1800, hibernate.hbm2ddl.auto=validate, h4m.adapter.spymemcached.operation.timeout.millis=5000, hibernate.dialect=org.hibernate.dialect.MySQL5Dialect, hibernate.cache.use_structured_entries=false, hibernate.cache.use_query_cache=true, h4m.expiry.seconds.userPersistenceUnit.certificates=1800, h4m.adapter.spymemcached.kryotranscoder.compression.threashold.bytes=20000, h4m.adapter.spymemcached.hashalgorithm=KETAMA_HASH, h4m.adapter.class=kr.pe.kwonnam.hibernate4memcached.spymemcached.SpyMemcachedAdapter, hibernate.cache.default_cache_concurrency_strategy=NONSTRICT_READ_WRITE, h4m.adapter.spymemcached.cachekey.prefix=validatorUser, h4m.adapter.spymemcached.hosts=localhost:11211, hibernate.cache.use_second_level_cache=true, hibernate.cache.region_pre
fix=userPersistenceUnit, h4m.timestamper.class=kr.pe.kwonnam.hibernate4memcached.timestamper.HibernateCacheTimestamperMemcachedImpl, hibernate.cache.region.factory_class=kr.pe.kwonnam.hibernate4memcached.Hibernate4MemcachedRegionFactory, h4m.expiry.seconds.userPersistenceUnit.org.hibernate.cache.internal.StandardQueryCache=3600, h4m.expiry.seconds.userPersistenceUnit.org.hibernate.cache.spi.UpdateTimestampsCache=86400, h4m.expiry.seconds=600, h4m.adapter.spymemcached.transcoder=kr.pe.kwonnam.hibernate4memcached.spymemcached.KryoTranscoder}
16:20:26.201 [localhost-startStop-7] INFO o.s.o.j.LocalContainerEntityManagerFactoryBean - Building JPA container EntityManagerFactory for persistence unit 'userPersistenceUnit'
16:20:26.242 [localhost-startStop-7] INFO o.h.jpa.internal.util.LogHelper - HHH000204: Processing PersistenceUnitInfo [
name: userPersistenceUnit
...]
16:20:26.502 [localhost-startStop-7] INFO org.hibernate.Version - HHH000412: Hibernate Core {4.3.8.Final}
16:20:26.506 [localhost-startStop-7] INFO org.hibernate.cfg.Environment - HHH000206: hibernate.properties not found
16:20:26.511 [localhost-startStop-7] INFO org.hibernate.cfg.Environment - HHH000021: Bytecode provider name : javassist
16:20:27.193 [localhost-startStop-7] INFO o.h.annotations.common.Version - HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
16:20:27.657 [localhost-startStop-7] INFO org.hibernate.dialect.Dialect - HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
16:20:28.223 [localhost-startStop-7] INFO o.h.h.i.a.ASTQueryTranslatorFactory - HHH000397: Using ASTQueryTranslatorFactory
2015-11-26 16:20:28.412 INFO net.spy.memcached.MemcachedConnection: Added {QA sa=localhost/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} to connect queue
2015-11-26 16:20:28.427 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@1da36e8
16:20:28.432 [localhost-startStop-7] INFO o.h.cache.spi.UpdateTimestampsCache - HHH000250: Starting update timestamps cache at region: userPersistenceUnit.org.hibernate.cache.spi.UpdateTimestampsCache
16:20:28.438 [localhost-startStop-7] INFO k.p.k.h.r.GeneralDataMemcachedRegion - expirySeconds of cache region [userPersistenceUnit.org.hibernate.cache.spi.UpdateTimestampsCache] - 86400 seconds.
16:20:28.443 [localhost-startStop-7] INFO o.h.c.internal.StandardQueryCache - HHH000248: Starting query cache at region: userPersistenceUnit.org.hibernate.cache.internal.StandardQueryCache
16:20:28.445 [localhost-startStop-7] INFO k.p.k.h.r.GeneralDataMemcachedRegion - expirySeconds of cache region [userPersistenceUnit.org.hibernate.cache.internal.StandardQueryCache] - 3600 seconds.
16:20:28.745 [localhost-startStop-7] INFO k.p.k.h.r.GeneralDataMemcachedRegion - expirySeconds of cache region [userPersistenceUnit.users] - 1800 seconds.
16:20:28.973 [localhost-startStop-7] INFO k.p.k.h.r.GeneralDataMemcachedRegion - expirySeconds of cache region [userPersistenceUnit.users] - 1800 seconds.
16:20:29.021 [localhost-startStop-7] INFO k.p.k.h.r.GeneralDataMemcachedRegion - expirySeconds of cache region [userPersistenceUnit.users] - 1800 seconds.
16:20:29.024 [localhost-startStop-7] INFO k.p.k.h.r.GeneralDataMemcachedRegion - expirySeconds of cache region [userPersistenceUnit.users] - 1800 seconds.
16:20:29.328 [localhost-startStop-7] INFO o.h.tool.hbm2ddl.SchemaValidator - HHH000229: Running schema validator
16:20:29.329 [localhost-startStop-7] INFO o.h.tool.hbm2ddl.SchemaValidator - HHH000102: Fetching database metadata
16:20:29.374 [localhost-startStop-7] INFO o.h.tool.hbm2ddl.TableMetadata - HHH000261: Table found: user.roleprivilege
我还停止了memcached并尝试了，然后我在启动应用程序时收到连接失败日志。