我想使用您的Application Server内置功能来管理 多个 DataSource,并使用JNDI访问它。我正在使用带有Spring JPA数据的Spring Boot。
我能够为单个数据源配置application.properties:
spring.datasource.jndi-name=jdbc/customers
而我在context.xml文件中的配置如下:
<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"/>
一切正常。
但是当我无法配置两个数据源时。
我可以确定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"/>
我对application.properties文件的配置有疑问。
我尝试了以下选项,但均未成功:
spring.datasource.jndi-name=jdbc/customers,jdbc/employee
请让我知道有关使用JNDI进行多个数据源的Spring引导的任何详细信息。我几天以来一直在寻找这种配置。
根据Spring Boot文档的第二次试用
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。日志中没有错误打印。
第三审: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
和下面的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(); }
但仍然出现错误:
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
它在客户模式中创建了所有表,但是也尝试从其他模式中查找其他表失败。
这是您的第三次试用的解决方案,需要进行一些修改。考虑以下解决方案(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将数据源与jpa存储库一起使用。