Question

我想在现有的Web应用程序中添加一个连接池，该连接池是使用Spring Boot 1.5.1创建的。

数据源配置在application.properties中进行，如下所示：

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

我不需要进行任何进一步的配置，这就足够了。

在官方docs中不够清楚，虽然显示了参数，也没有在Spring Boot docs中显示。

所以，我一直在那里寻找解决方案（this one，this one too ...）。

我做了几次试验，但每次运行应用程序时，都会抛出有关HikariCP的例外情况。

添加spring.datasource.type=com.zaxxer.hikari.HikariDataSource时，会抛出以下异常：

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$1.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，这是将hikaricp添加到我的application.properties中的最简单方法吗？

Answer 1

您收到以下错误。

引起：java.lang.AbstractMethodError：net.sourceforge.jtds.jdbc.JtdsConnection.isValid（JtdsConnection.java:2833）中的null

问题是net.sourceforge.jtds.jdbc.JtdsConnection没有实现isValid因此您需要指定连接测试查询以确保不调用isValid方法。尝试在application.properties文件中添加以下属性。

spring.datasource.hikari.connection-test-query=SELECT 1

Answer 2

对于使用多个数据源（Spring Boot 2.0），我必须执行以下操作才能使其工作（设置spring.datasource.hikari.connection-test-query属性仅在使用单个数据源时有效）：

@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);
    }
}

Answer 3

我遇到了同样的问题并找到了 discussion.的解决方案看起来，在进行任何进一步的配置之前，Hikari CP通过执行在这种情况下缺少的测试查询来测试连接的有效性。因此，如前面的答案所示，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，则可以使用以下查询（因为SELECT 1不在此处工作）：

spring.datasource.hikari.connection-test-query=SELECT 1 FROM DUAL

注意：DUAL是Oracle和其他数据库中的特殊单行和单列表。因此，它可以很容易地用于执行简单的测试查询。

使用JTDS在Spring Boot中配置HikariCP

3 个答案: