我想在 Spring Boot 中配置 2 个 JNDI 数据源。我试过这个配置:
application.properties
spring.production-datasource.jndi-name=java:/global/production_gateway
spring.production-datasource.driver-class-name=org.mariadb.jdbc.Driver
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MariaDBDialect
spring.jpa.show-sql = true
spring.jpa.hibernate.ddl-auto = update
spring.warehouse-datasource.jndi-name=java:/global/production_warehouse
spring.warehouse-datasource.driver-class-name=org.mariadb.jdbc.Driver
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MariaDBDialect
spring.jpa.show-sql = true
spring.jpa.hibernate.ddl-auto = update
主数据源配置:
@Configuration
@EnableJpaRepositories(
basePackages = "org.datalis.plugin.production.entity",
entityManagerFactoryRef = "productionEntityManager",
transactionManagerRef = "productionTransactionManager"
)
@EnableTransactionManagement
public class ContextProductionDatasource {
@Autowired
private Environment env;
@Primary
@Bean(name = "productionDataSourceProperties")
@ConfigurationProperties(prefix="spring.production.datasource")
public DataSourceProperties productionDataSourceProperties() {
return new DataSourceProperties();
}
@Primary
@Bean(name = "productionDataSource")
@ConfigurationProperties(prefix="spring.production.datasource")
public DataSource productionDataSource() {
return DataSourceBuilder.create().build();
}
@Primary
@Bean(name = "productionEntityManager")
public EntityManager productionEntityManager(EntityManagerFactory emf) {
return emf.createEntityManager();
}
@Primary
@Bean(name = "productionTransactionManager")
public PlatformTransactionManager productionTransactionManager(final EntityManagerFactory emf) {
final JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(emf);
return transactionManager;
}
@Primary
@Bean(name = "productionExceptionTranslation")
public PersistenceExceptionTranslationPostProcessor productionExceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
}
第二个数据源配置:
@Configuration
@EnableJpaRepositories(
basePackages = "org.datalis.plugin.warehouse.entity",
entityManagerFactoryRef = "warehouseEntityManager",
transactionManagerRef = "warehouseTransactionManager"
)
@EnableTransactionManagement
public class ContextWarehouseDatasource {
@Autowired
private Environment env;
@Bean(name = "warehouseDataSourceProperties")
@ConfigurationProperties(prefix="spring.warehouse.datasource")
public DataSourceProperties warehouseDataSourceProperties() {
return new DataSourceProperties();
}
@Bean(name = "warehouseDataSource")
@ConfigurationProperties(prefix="spring.warehouse.datasource")
public DataSource warehouseDataSource() {
return DataSourceBuilder.create().build();
}
@Bean(name = "warehouseEntityManager")
public EntityManager warehouseEntityManager(EntityManagerFactory emf) {
return emf.createEntityManager();
}
@Bean(name = "warehouseTransactionManager")
public PlatformTransactionManager warehouseTransactionManager(final EntityManagerFactory emf) {
final JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(emf);
return transactionManager;
}
@Bean(name = "warehouseExceptionTranslation")
public PersistenceExceptionTranslationPostProcessor warehouseExceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
}
但是在部署过程中出现错误:
Caused by: java.lang.IllegalStateException: Unable to set value for property driver-class-name
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.JavaBeanBinder$BeanProperty.setValue(JavaBeanBinder.java:349)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.JavaBeanBinder.bind(JavaBeanBinder.java:96)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.JavaBeanBinder.bind(JavaBeanBinder.java:79)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.JavaBeanBinder.bind(JavaBeanBinder.java:56)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.Binder.lambda$bindDataObject$5(Binder.java:452)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.Binder$Context.withIncreasedDepth(Binder.java:570)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.Binder$Context.withDataObject(Binder.java:556)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.Binder$Context.access$400(Binder.java:513)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.Binder.bindDataObject(Binder.java:450)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.Binder.bindObject(Binder.java:391)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:320)
... 132 more
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at deployment.datalis_rest_api.war//org.springframework.boot.context.properties.bind.JavaBeanBinder$BeanProperty.setValue(JavaBeanBinder.java:346)
... 142 more
Caused by: java.lang.RuntimeException: Failed to load driver class org.mariadb.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
at deployment.datalis_rest_api.war//com.zaxxer.hikari.HikariConfig.setDriverClassName(HikariConfig.java:485)
我正在使用部署到 Wildfly 服务器的 Spring boot war，并部署了 mariadb-java-client-2.4.2.jar。当我使用单个数据源配置时它工作正常。但是对于第二个数据源，我得到了异常(exception)。
你知道我该如何解决这个问题吗？
第二次尝试 :
应用程序属性:
spring.production.datasource.jndi-name=java:/global/production_gateway
spring.production.datasource.driver-class-name=org.mariadb.jdbc.Driver
spring.production.jpa.properties.hibernate.dialect=org.hibernate.dialect.MariaDBDialect
spring.production.jpa.show-sql = true
spring.production.jpa.hibernate.ddl-auto = update
spring.warehouse.datasource.jndi-name=java:/global/production_warehouse
spring.warehouse.datasource.driver-class-name=org.mariadb.jdbc.Driver
spring.warehouse.jpa.properties.hibernate.dialect=org.hibernate.dialect.MariaDBDialect
spring.warehouse.jpa.show-sql = true
spring.warehouse.jpa.hibernate.ddl-auto = update
第一个数据源:
@Configuration
@EnableJpaRepositories(
basePackages = "org.datalis.plugin.production.entity",
entityManagerFactoryRef = "productionEntityManager",
transactionManagerRef = "productionTransactionManager"
)
@EnableTransactionManagement
public class ContextProductionDatasource {
@Primary
@Bean(name = "productionDataSourceProperties")
@ConfigurationProperties(prefix="spring.production")
public DataSourceProperties productionDataSourceProperties() {
return new DataSourceProperties();
}
@Primary
@Bean(name = "productionDataSource")
@ConfigurationProperties(prefix="spring.production")
public DataSource productionDataSource() {
return DataSourceBuilder.create().build();
}
@Primary
@Bean(name = "productionEntityManager")
public EntityManager productionEntityManager(EntityManagerFactory emf) {
return emf.createEntityManager();
}
@Primary
@Bean(name = "productionTransactionManager")
public PlatformTransactionManager productionTransactionManager(final EntityManagerFactory emf) {
final JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(emf);
return transactionManager;
}
@Primary
@Bean(name = "productionExceptionTranslation")
public PersistenceExceptionTranslationPostProcessor productionExceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
}
第二个数据源:
@Configuration
@EnableJpaRepositories(
basePackages = "org.datalis.plugin.warehouse.entity",
entityManagerFactoryRef = "warehouseEntityManager",
transactionManagerRef = "warehouseTransactionManager"
)
@EnableTransactionManagement
public class ContextWarehouseDatasource {
@Bean(name = "warehouseDataSourceProperties")
@ConfigurationProperties(prefix="spring.warehouse")
public DataSourceProperties warehouseDataSourceProperties() {
return new DataSourceProperties();
}
@Bean(name = "warehouseDataSource")
@ConfigurationProperties(prefix="spring.warehouse")
public DataSource warehouseDataSource() {
return DataSourceBuilder.create().build();
}
@Bean(name = "warehouseEntityManager")
public EntityManager warehouseEntityManager(EntityManagerFactory emf) {
return emf.createEntityManager();
}
@Bean(name = "warehouseTransactionManager")
public PlatformTransactionManager warehouseTransactionManager(final EntityManagerFactory emf) {
final JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(emf);
return transactionManager;
}
@Bean(name = "warehouseExceptionTranslation")
public PersistenceExceptionTranslationPostProcessor warehouseExceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
}
现在我得到:
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean]: Factory method 'entityManagerFactory' threw exception; nested exception is java.lang.IllegalArgumentException: dataSource or dataSourceClassName or jdbcUrl is required.
at deployment.datalis_rest_api.war//org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
at deployment.datalis_rest_api.war//org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:640)
... 41 more
Caused by: java.lang.IllegalArgumentException: dataSource or dataSourceClassName or jdbcUrl is required.
最佳答案
更正两个 entityManager bean 的名称:productionEntityManager 和仓库实体管理器entityManagerFactoryRef在 @EnableJpaRepositories是 beanName 引用，
所以用
@Configuration
@EnableJpaRepositories(
basePackages = "org.datalis.plugin.production.entity",
entityManagerFactoryRef = "productionEntityManager",
transactionManagerRef = "productionTransactionManager"
)
@EnableTransactionManagement
public class ContextProductionDatasource {
...
@Primary
@Bean
public EntityManager productionEntityManager(EntityManagerFactory emf) {
return emf.createEntityManager();
}
和
@Configuration
@EnableJpaRepositories(
basePackages = "org.datalis.plugin.warehouse.entity",
entityManagerFactoryRef = "warehouseEntityManager",
transactionManagerRef = "warehouseTransactionManager"
)
@EnableTransactionManagement
public class ContextWarehouseDatasource {
...
@Bean
public EntityManager warehouseEntityManager(EntityManagerFactory emf) {
return emf.createEntityManager();
}
您需要匹配
@ConfigurationProperties 中的属性名称到属性值 ' - ' 与 ' . '使用
@ConfigurationProperties(prefix="spring.production-datasource")和@ConfigurationProperties(prefix="spring.warehouse-datasource")并确保您的类路径中有驱动程序
喜欢
<dependency>
<groupId>org.mariadb.jdbc</groupId>
<artifactId>mariadb-java-client</artifactId>
<version>2.5.2</version>
<scope>runtime</scope>
</dependency>
关于java - 无法加载驱动程序类 org.mariadb.jdbc.Driver，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58999473/