当我使用HikariCP 2.4.7时，我通常会将其初始化为：
hikariDataSource = new HikariDataSource();
hikariDataSource.setDriverClassName("org.postgresql.Driver");
hikariDataSource.setUsername(DATABASE_USER_NAME);
hikariDataSource.setPassword(DATABASE_PASSWORD);
hikariDataSource.setJdbcUrl(DATABASE_URL);
当我需要连接时：
try(java.sql.Connection conn = hikariDataSource.getConnection()) {
Record1 record1 = DSL.using(conn).select(SENSOR.ID)
.from(SENSOR)
.where(SENSOR.ID.equal(1))
.limit(1)
.fetchOne();
System.out.println(record1.getValue(0).toString());
} catch (SQLException e) {
e.printStackTrace();
}
在使用HikariCP和Spring Boot 1.4.0时，我应该以其他方式做某事还是添加一些内容？
更新1：
的build.gradle
compile("org.springframework.boot:spring-boot-starter-web:1.4.0.RELEASE")
compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa', version: '1.4.0.RELEASE'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-jdbc', version: '1.4.0.RELEASE'
compile group: 'com.zaxxer', name: 'HikariCP', version: '2.4.7'
application.properties
server.port=80
spring.datasource.hikari.jdbc-url=jdbc:postgresql://someaddress.com:5432/mydb
spring.datasource.hikari.username=myservice_backend
spring.datasource.hikari.password=mypass
spring.datasource.hikari.driver-class-name=org.postgresql.Driver
但是，在application.properties中添加spring-boot-starter-data-jpa和spring-boot-starter-jdbc以及配置后，我得到：
Connected to the target VM, address: '127.0.0.1:53695', transport: 'socket'
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.4.0.RELEASE)
2016-08-03 16:09:34.033 INFO 3492 --- [ main] pl.mypackage.Main : Starting Main on Defozo-laptop with PID 3492 (C:\Users\Defozo\IdeaProjects\myProject\build\classes\main started by Defozo in C:\Users\Defozo\IdeaProjects\myProject)
2016-08-03 16:09:34.038 INFO 3492 --- [ main] pl.mypackage.Main : No active profile set, falling back to default profiles: default
2016-08-03 16:09:34.091 INFO 3492 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@f58853c: startup date [Wed Aug 03 16:09:34 CEST 2016]; root of context hierarchy
2016-08-03 16:09:35.298 INFO 3492 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'dataSource' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari; factoryMethodName=dataSource; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Tomcat; factoryMethodName=dataSource; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]]
2016-08-03 16:09:35.820 INFO 3492 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$b802c57c] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2016-08-03 16:09:36.484 INFO 3492 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 80 (http)
2016-08-03 16:09:36.501 INFO 3492 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2016-08-03 16:09:36.503 INFO 3492 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.4
2016-08-03 16:09:36.635 INFO 3492 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2016-08-03 16:09:36.635 INFO 3492 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2544 ms
2016-08-03 16:09:36.811 INFO 3492 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-08-03 16:09:36.814 INFO 3492 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-08-03 16:09:36.815 INFO 3492 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-08-03 16:09:36.815 INFO 3492 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-08-03 16:09:36.815 INFO 3492 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-08-03 16:09:36.863 WARN 3492 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration': Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
2016-08-03 16:09:36.874 INFO 3492 --- [ main] o.apache.catalina.core.StandardService : Stopping service Tomcat
2016-08-03 16:09:36.888 INFO 3492 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report enable debug logging (start with --debug)
2016-08-03 16:09:36.896 ERROR 3492 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Cannot determine embedded database driver class for database type NONE
Action:
If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
Disconnected from the target VM, address: '127.0.0.1:53695', transport: 'socket'
Process finished with exit code 1
我试图改变这个：
@SpringBootApplication
@EnableAutoConfiguration
public class Main extends SpringBootServletInitializer {
到此：
@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class Main extends SpringBootServletInitializer {
但我仍然得到相同的输出。
更新2：
application.properties
server.port=80
spring.datasource.url=jdbc:postgresql://someaddress.com:5432/mydb
spring.datasource.username=myservice_backend
spring.datasource.password=mypass
spring.datasource.driver-class-name=org.postgresql.Driver
控制台输出：
Connected to the target VM, address: '127.0.0.1:50640', transport: 'socket'
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.4.0.RELEASE)
2016-08-04 12:55:49.369 INFO 11728 --- [ main] pl.mypackage.Main : Starting Main on Defozo-laptop with PID 11728 (C:\Users\Defozo\IdeaProjects\AirlyMap3\build\classes\main started by Defozo in C:\Users\Defozo\IdeaProjects\AirlyMap3)
2016-08-04 12:55:49.369 INFO 11728 --- [ main] pl.mypackage.Main : No active profile set, falling back to default profiles: default
2016-08-04 12:55:49.432 INFO 11728 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@f58853c: startup date [Thu Aug 04 12:55:49 CEST 2016]; root of context hierarchy
2016-08-04 12:55:50.786 INFO 11728 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'dataSource' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari; factoryMethodName=dataSource; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Tomcat; factoryMethodName=dataSource; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]]
2016-08-04 12:55:51.304 INFO 11728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$932c4431] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2016-08-04 12:55:51.951 INFO 11728 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 80 (http)
2016-08-04 12:55:51.967 INFO 11728 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2016-08-04 12:55:51.969 INFO 11728 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.4
2016-08-04 12:55:52.114 INFO 11728 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2016-08-04 12:55:52.114 INFO 11728 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2682 ms
2016-08-04 12:55:52.315 INFO 11728 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-08-04 12:55:52.317 INFO 11728 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-08-04 12:55:52.317 INFO 11728 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-08-04 12:55:52.317 INFO 11728 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-08-04 12:55:52.317 INFO 11728 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-08-04 12:55:55.402 INFO 11728 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2016-08-04 12:55:55.418 INFO 11728 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2016-08-04 12:55:55.511 INFO 11728 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.0.9.Final}
2016-08-04 12:55:55.511 INFO 11728 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2016-08-04 12:55:55.511 INFO 11728 --- [ main] org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
2016-08-04 12:55:55.558 INFO 11728 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2016-08-04 12:55:56.751 INFO 11728 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQL94Dialect
2016-08-04 12:56:48.037 INFO 11728 --- [ main] o.h.e.j.e.i.LobCreatorBuilderImpl : HHH000424: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException
2016-08-04 12:56:48.044 INFO 11728 --- [ main] org.hibernate.type.BasicTypeRegistry : HHH000270: Type registration [java.util.UUID] overrides previous : org.hibernate.type.UUIDBinaryType@6568f998
2016-08-04 12:56:48.738 INFO 11728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@f58853c: startup date [Thu Aug 04 12:55:49 CEST 2016]; root of context hierarchy
2016-08-04 12:56:48.890 INFO 11728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v1/measurement],methods=[POST]}" onto void pl.mypackage.ResponseGenerator.sendMeasurementFromSensorToDatabase(java.util.Map<java.lang.String, java.lang.String>)
2016-08-04 12:56:48.891 INFO 11728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v1/measurements],methods=[GET],produces=[application/json || text/html]}" onto static org.springframework.http.ResponseEntity<java.lang.String> pl.mypackage.ResponseGenerator.getResponseAdequateToRequest(java.util.Map<java.lang.String, java.lang.String>)
2016-08-04 12:56:48.895 INFO 11728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2016-08-04 12:56:48.895 INFO 11728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2016-08-04 12:56:48.924 INFO 11728 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-08-04 12:56:48.924 INFO 11728 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-08-04 12:56:48.988 INFO 11728 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-08-04 12:56:49.735 INFO 11728 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-08-04 12:56:49.795 INFO 11728 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 80 (http)
2016-08-04 12:56:49.800 INFO 11728 --- [ main] pl.mypackage.Main : Started Main in 60.881 seconds (JVM running for 61.327)
它开始了，但它花了大约61秒才开始。为什么这么久？