使用JNDI在Spring Boot中配置多个DataSource
我想使用您的Application Server内置function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: –
spring.datasource.jndi-name=jdbc/customers
我在context.xml文件中的配置如下: –
一切正常。
但是当我无法配置两个数据源时。
我确信在context.xml文件中的配置: –
我对application.properties文件配置有疑问。
我尝试了以下选项但没有成功: –
spring.datasource.jndi-name=jdbc/customers,jdbc/employee
有关多个数据源的JNDI,请告诉我有关Spring启动的任何详细信息。 我好几天都在寻找这种配置。 任何forms的建议或评论都会受到高度赞赏。
根据Spring Boot文档进行第二次试用
spring.datasource.primary.jndi-name=jdbc/customer spring.datasource.secondary.jndi-name=jdbc/project
配置类。
@Bean @Primary @ConfigurationProperties(prefix="datasource.primary") public DataSource primaryDataSource() { return DataSourceBuilder.create().build(); } @Bean @ConfigurationProperties(prefix="datasource.secondary") public DataSource secondaryDataSource() { return DataSourceBuilder.create().build(); }
该应用程序无法启动。 虽然tomcat服务器正在启动。 日志中不会打印错误。
第三次试验: – 使用JndiObjectFactoryBean
我有以下application.properties
spring.datasource.primary.expected-type=javax.sql.DataSource spring.datasource.primary.jndi-name=jdbc/customer spring.datasource.primary.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect spring.datasource.primary.jpa.show-sql=false spring.datasource.primary.jpa.hibernate.ddl-auto=validate spring.datasource.secondary.jndi-name=jdbc/employee spring.datasource.secondary.expected-type=javax.sql.DataSource spring.datasource.secondary.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect spring.datasource.secondary.jpa.show-sql=false spring.datasource.secondary.jpa.hibernate.ddl-auto=validate
以下java配置: –
@Bean(destroyMethod="") @Primary @ConfigurationProperties(prefix="spring.datasource.primary") public FactoryBean primaryDataSource() { return new JndiObjectFactoryBean(); } @Bean(destroyMethod="") @ConfigurationProperties(prefix="spring.datasource.secondary") public FactoryBean secondaryDataSource() { return new JndiObjectFactoryBean(); }
但仍然得到错误: –
Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'primaryDataSource' defined in class path resource [com/web/initializer/MvcConfig.class]: Invocation of init method failed; nested exception is javax.naming.NameNotFoundException: Name [jdbc/customer] is not bound in this Context. Unable to find [jdbc]. Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'secondaryDataSource' defined in class path resource [com/web/initializer/MvcConfig.class]: Invocation of init method failed; nested exception is javax.naming.NameNotFoundException: Name [jdbc/employee] is not bound in this Context. Unable to find [jdbc]. at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686) at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) at org.springframework.boot.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:117) at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:108) at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:68) at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
更新: –使用以下属性文件进行试用: –
spring.datasource.primary.expected-type=javax.sql.DataSource spring.datasource.primary.jndi-name=java:comp/env/jdbc/customer spring.datasource.secondary.jndi-name=java:comp/env/jdbc/employee spring.datasource.secondary.expected-type=javax.sql.DataSource spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect spring.jpa.show-sql=false spring.jpa.hibernate.ddl-auto=validate
它会在客户架构中创建所有表,但也无法尝试查找其他表。(来自第二个架构)
这是您的第三次试验的解决方案稍作修改。 考虑这个解决方案(Spring Boot 1.3.2):
application.properties文件:
spring.datasource.primary.jndi-name=java:/comp/env/jdbc/SecurityDS spring.datasource.primary.driver-class-name=org.postgresql.Driver spring.datasource.secondary.jndi-name=java:/comp/env/jdbc/TmsDS spring.datasource.secondary.driver-class-name=org.postgresql.Driver spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQL9Dialect spring.jpa.show-sql=false
组态:
@Configuration@ EnableConfigurationProperties public class AppConfig { @Bean@ ConfigurationProperties(prefix = "spring.datasource.primary") public JndiPropertyHolder primary() { return new JndiPropertyHolder(); } @Bean@ Primary public DataSource primaryDataSource() { JndiDataSourceLookup dataSourceLookup = new JndiDataSourceLookup(); DataSource dataSource = dataSourceLookup.getDataSource(primary().getJndiName()); return dataSource; } @Bean@ ConfigurationProperties(prefix = "spring.datasource.secondary") public JndiPropertyHolder secondary() { return new JndiPropertyHolder(); } @Bean public DataSource secondaryDataSource() { JndiDataSourceLookup dataSourceLookup = new JndiDataSourceLookup(); DataSource dataSource = dataSourceLookup.getDataSource(secondary().getJndiName()); return dataSource; } private static class JndiPropertyHolder { private String jndiName; public String getJndiName() { return jndiName; } public void setJndiName(String jndiName) { this.jndiName = jndiName; } } }
然后,您可以按照指南http://docs.spring.io/spring-data/jpa/docs/1.3.0.RELEASE/reference/html/jpa.repositories.html将您的数据源与jpa存储库一起使用。
您可以使用普通的JndiObjectFactoryBean
。 只需用JndiObjectFactoryBean
替换DataSourceBuilder
。
Java配置
@Bean(destroyMethod="") @Primary @ConfigurationProperties(prefix="datasource.primary") public FactoryBean primaryDataSource() { return new JndiObjectFactoryBean(); } @Bean(destroyMethod="") @ConfigurationProperties(prefix="datasource.secondary") public FactoryBean secondaryDataSource() { return new JndiObjectFactoryBean(); }
属性
datasource.primary.jndi-name=jdbc/customer datasource.primary.expected-type=javax.sql.DataSource datasource.secondary.jndi-name=jdbc/project datasource.secondary.expected-type=javax.sql.DataSource
您可以使用@ConfigurationProperties
批注设置JndiObjectFactoryBean
每个属性。 (请参阅我添加的expected-type
,但您也可以设置cache
或lookup-on-startup
等)。
注意:在执行JNDI查找时,将destroyMethod
设置为""
否则您可能会遇到这样的情况:当应用程序关闭时,您的JNDI资源也会被关闭/关闭。 在共享环境中,这不是您想要的。
它适用于我,包含较少的代码
@Configuration public class Config { @Value("${spring.datasource.primary.jndi-name}") private String primaryJndiName; @Value("${spring.datasource.secondary.jndi-name}") private String secondaryJndiName; private JndiDataSourceLookup lookup = new JndiDataSourceLookup(); @Primary @Bean(destroyMethod = "") // destroy method is disabled for Weblogic update app ability public DataSource primaryDs() { return lookup.getDataSource(primaryJndiName); } @Bean(destroyMethod = "") // destroy method is disabled for Weblogic update app ability public DataSource secondaryDs() { return lookup.getDataSource(secondaryJndiName); } }