使用 JTDS 在 Spring 引导中配置 HikariCP
Configure HikariCP in Spring Boot with JTDS
我想向我现有的 Web 应用程序添加一个连接池，该应用程序是使用 Spring Boot 1.5.1 创建的。
数据源配置在application.properties如下：
spring.datasource.url=jdbc:jtds:sqlserver://localhost:1433;databaseName=MyDatabase;instance=SQLServer2014;
spring.datasource.username=myuser
spring.datasource.password=passwd
spring.datasource.driver-class-name=net.sourceforge.jtds.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
我不需要再做任何配置，有了这个就够了。
官方说的不够清楚docs, although parameters are shown, nor in the Spring Boot docs.
所以，我一直在那边寻找解决方案 (this one, this one too...)。
我做了几次试验，但每次我 运行 应用程序时，都会抛出有关 HikariCP 的异常。
添加spring.datasource.type=com.zaxxer.hikari.HikariDataSource时，抛出如下异常：
2017-02-15 12:12:23.955 WARN 14844 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError
2017-02-15 12:12:23.964 INFO 14844 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-02-15 12:12:23.970 ERROR 14844 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at com.ingartek.ws.pps.PrestacionesPoliticasSocialesInternoApplication.main(PrestacionesPoliticasSocialesInternoApplication.java:26) [classes/:na]
Caused by: java.lang.AbstractMethodError: null
at net.sourceforge.jtds.jdbc.JtdsConnection.isValid(JtdsConnection.java:2833) ~[jtds-1.3.1.jar:1.3.1]
at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:422) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:393) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:351) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:196) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:442) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:505) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:113) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:97) ~[HikariCP-2.6.0.jar:na]
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:257) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:231) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:858) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:885) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:362) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
... 16 common frames omitted
那么，哪个是将 hikaricp 添加到我的 application.properties 的最简单方法？
您遇到错误。
Caused by: java.lang.AbstractMethodError: null at net.sourceforge.jtds.jdbc.JtdsConnection.isValid(JtdsConnection.java:2833)
问题是 net.sourceforge.jtds.jdbc.JtdsConnection 没有实现 isValid，因此您需要指定 connection-test-query 以确保不调用 isValid 方法。尝试在您的 application.properties 文件中添加以下 属性。
spring.datasource.hikari.connection-test-query=SELECT 1
我 运行 遇到了同样的问题，并从中找到了解决方案 discussion.
看起来，在进行任何进一步的配置之前，Hikari CP 通过执行本例中缺少的测试查询来测试连接的有效性。
因此，正如前面的答案所建议的那样，您应该在 application.properties 文件中添加一个测试查询。
如果您使用的是 Oracle 或 mySql，则可以改用以下查询（因为 SELECT 1 在这里不起作用）：
spring.datasource.hikari.connection-test-query=SELECT 1 FROM DUAL
注意：DUAL 是 Oracle 和其他数据库中存在的一种特殊的单行单列 table。因此，它可以很容易地用于执行简单的测试查询。
为了使用多个数据源（Spring Boot 2.0），我必须执行以下操作才能使其正常工作（设置 spring.datasource.hikari.connection-test-query 属性 仅在使用时有效单个数据源）：
@Configuration
public class DataConfig {
@Bean
@Primary
@ConfigurationProperties(prefix="spring.datasource")
public DataSource primaryDataSource() {
HikariDataSource ds = (HikariDataSource) DataSourceBuilder.create().build();
ds.setConnectionTestQuery("SELECT 1");
return ds;
}
@Bean(name="secondDataSource")
@ConfigurationProperties(prefix="spring.datasource.second")
public DataSource secondDataSource() {
HikariDataSource ds = (HikariDataSource) DataSourceBuilder.create().build();
ds.setConnectionTestQuery("SELECT 1");
return ds;
}
@Bean(name="primaryJdbcTemplate")
public JdbcTemplate primaryJdbcTemplate(DataSource primaryDataSource) {
return new JdbcTemplate(primaryDataSource);
}
@Bean(name="secondJdbcTemplate")
public JdbcTemplate secondJdbcTemplate(@Qualifier("secondDataSource") DataSource secondDataSource) {
return new JdbcTemplate(secondDataSource);
}
}
我想向我现有的 Web 应用程序添加一个连接池，该应用程序是使用 Spring Boot 1.5.1 创建的。
数据源配置在application.properties如下：
spring.datasource.url=jdbc:jtds:sqlserver://localhost:1433;databaseName=MyDatabase;instance=SQLServer2014;
spring.datasource.username=myuser
spring.datasource.password=passwd
spring.datasource.driver-class-name=net.sourceforge.jtds.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
我不需要再做任何配置，有了这个就够了。
官方说的不够清楚docs, although parameters are shown, nor in the Spring Boot docs.
所以，我一直在那边寻找解决方案 (this one, this one too...)。
我做了几次试验，但每次我 运行 应用程序时，都会抛出有关 HikariCP 的异常。
添加spring.datasource.type=com.zaxxer.hikari.HikariDataSource时，抛出如下异常：
2017-02-15 12:12:23.955 WARN 14844 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError
2017-02-15 12:12:23.964 INFO 14844 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-02-15 12:12:23.970 ERROR 14844 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at com.ingartek.ws.pps.PrestacionesPoliticasSocialesInternoApplication.main(PrestacionesPoliticasSocialesInternoApplication.java:26) [classes/:na]
Caused by: java.lang.AbstractMethodError: null
at net.sourceforge.jtds.jdbc.JtdsConnection.isValid(JtdsConnection.java:2833) ~[jtds-1.3.1.jar:1.3.1]
at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:422) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:393) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:351) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:196) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:442) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:505) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:113) ~[HikariCP-2.6.0.jar:na]
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:97) ~[HikariCP-2.6.0.jar:na]
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:257) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:231) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:858) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:885) ~[hibernate-core-5.2.6.Final.jar:5.2.6.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:362) ~[spring-orm-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
... 16 common frames omitted
那么，哪个是将 hikaricp 添加到我的 application.properties 的最简单方法？
您遇到错误。
Caused by: java.lang.AbstractMethodError: null at net.sourceforge.jtds.jdbc.JtdsConnection.isValid(JtdsConnection.java:2833)
问题是 net.sourceforge.jtds.jdbc.JtdsConnection 没有实现 isValid，因此您需要指定 connection-test-query 以确保不调用 isValid 方法。尝试在您的 application.properties 文件中添加以下 属性。
spring.datasource.hikari.connection-test-query=SELECT 1
我 运行 遇到了同样的问题，并从中找到了解决方案 discussion. 看起来，在进行任何进一步的配置之前，Hikari CP 通过执行本例中缺少的测试查询来测试连接的有效性。 因此，正如前面的答案所建议的那样，您应该在 application.properties 文件中添加一个测试查询。 如果您使用的是 Oracle 或 mySql，则可以改用以下查询（因为 SELECT 1 在这里不起作用）：
spring.datasource.hikari.connection-test-query=SELECT 1 FROM DUAL
注意：DUAL 是 Oracle 和其他数据库中存在的一种特殊的单行单列 table。因此，它可以很容易地用于执行简单的测试查询。
为了使用多个数据源（Spring Boot 2.0），我必须执行以下操作才能使其正常工作（设置 spring.datasource.hikari.connection-test-query 属性 仅在使用时有效单个数据源）：
@Configuration
public class DataConfig {
@Bean
@Primary
@ConfigurationProperties(prefix="spring.datasource")
public DataSource primaryDataSource() {
HikariDataSource ds = (HikariDataSource) DataSourceBuilder.create().build();
ds.setConnectionTestQuery("SELECT 1");
return ds;
}
@Bean(name="secondDataSource")
@ConfigurationProperties(prefix="spring.datasource.second")
public DataSource secondDataSource() {
HikariDataSource ds = (HikariDataSource) DataSourceBuilder.create().build();
ds.setConnectionTestQuery("SELECT 1");
return ds;
}
@Bean(name="primaryJdbcTemplate")
public JdbcTemplate primaryJdbcTemplate(DataSource primaryDataSource) {
return new JdbcTemplate(primaryDataSource);
}
@Bean(name="secondJdbcTemplate")
public JdbcTemplate secondJdbcTemplate(@Qualifier("secondDataSource") DataSource secondDataSource) {
return new JdbcTemplate(secondDataSource);
}
}