我似乎无法弄清楚为什么我的Spring Boot应用程序无法自动创建SessionFactory。据我了解，它应该自动拾取属性文件并能够创建会话工厂bean。
我需要在某些Dao类中与Hibernate一起使用会话工厂，但是下面的简单示例重现了我遇到的问题：
pom.xml：
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>mytools</groupId> <artifactId>spring-boot-hello-world</artifactId> <version>1.0-SNAPSHOT</version> <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <start-class>mytools.spring.hello.Application</start-class> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <version>2.0.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> <version>2.0.1.RELEASE</version> </dependency> <dependency> <groupId>org.hsqldb</groupId> <artifactId>hsqldb</artifactId> <version>2.3.4</version> </dependency> <dependency> <groupId>javax.xml.bind</groupId> <artifactId>jaxb-api</artifactId> <version>2.3.0</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>2.0.1.RELEASE</version> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> </plugins> </build>
application.properties：
spring.datasource.url=jdbc:hsqldb:file:databaseFiles/hibData/;hsqldb.write_delay_millis=0 spring.datasource.root=sa spring.datasource.password=1 spring.jpa.properties.hibernate.current_session_context_class=org.springframework.orm.hibernate5.SpringSessionContext spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.HSQLDialect spring.jpa.properties.hibernate.show_sql=false spring.jpa.properties.hibernate.hbm2ddl.auto=update spring.jpa.properties.hibernate.jdbc.batch_size=50 spring.jpa.properties.hibernate.order_inserts=true spring.jpa.properties.hibernate.order_updates=true spring.jpa.properties.hibernate.jdbc.batch_versioned_data=true
应用类别：
package mytools.spring.hello; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class Application { @Autowired SessionFactory sessionFactory; public static void main(String[] args) { SpringApplication.run(Application.class, args); } }
输出：
"C:\Program Files\Java\jdk-9.0.4\bin\java" -Dvisualvm.id=13106393222439 "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2017.1.4\lib\idea_rt.jar=51221:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2017.1.4\bin" -Dfile.encoding=UTF-8 -classpath D:\Projects\Java\springboothelloworld\target\classes;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.0.1.RELEASE\spring-boot-starter-web-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter\2.0.1.RELEASE\spring-boot-starter-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot\2.0.1.RELEASE\spring-boot-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.0.1.RELEASE\spring-boot-autoconfigure-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.0.1.RELEASE\spring-boot-starter-logging-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\owner\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\owner\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;C:\Users\owner\.m2\repository\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;C:\Users\owner\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\owner\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\owner\.m2\repository\org\springframework\spring-core\5.0.5.RELEASE\spring-core-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-jcl\5.0.5.RELEASE\spring-jcl-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.0.1.RELEASE\spring-boot-starter-json-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.5\jackson-databind-2.9.5.jar;C:\Users\owner\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\owner\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.5\jackson-core-2.9.5.jar;C:\Users\owner\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.5\jackson-datatype-jdk8-2.9.5.jar;C:\Users\owner\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.5\jackson-datatype-jsr310-2.9.5.jar;C:\Users\owner\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.5\jackson-module-parameter-names-2.9.5.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.0.1.RELEASE\spring-boot-starter-tomcat-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\8.5.29\tomcat-embed-core-8.5.29.jar;C:\Users\owner\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\8.5.29\tomcat-embed-el-8.5.29.jar;C:\Users\owner\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\8.5.29\tomcat-embed-websocket-8.5.29.jar;C:\Users\owner\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.9.Final\hibernate-validator-6.0.9.Final.jar;C:\Users\owner\.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\owner\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\owner\.m2\repository\com\fasterxml\classmate\1.3.4\classmate-1.3.4.jar;C:\Users\owner\.m2\repository\org\springframework\spring-web\5.0.5.RELEASE\spring-web-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-beans\5.0.5.RELEASE\spring-beans-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-webmvc\5.0.5.RELEASE\spring-webmvc-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-aop\5.0.5.RELEASE\spring-aop-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-context\5.0.5.RELEASE\spring-context-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-expression\5.0.5.RELEASE\spring-expression-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter-data-jpa\2.0.1.RELEASE\spring-boot-starter-data-jpa-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter-aop\2.0.1.RELEASE\spring-boot-starter-aop-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\org\aspectj\aspectjweaver\1.8.13\aspectjweaver-1.8.13.jar;C:\Users\owner\.m2\repository\org\springframework\boot\spring-boot-starter-jdbc\2.0.1.RELEASE\spring-boot-starter-jdbc-2.0.1.RELEASE.jar;C:\Users\owner\.m2\repository\com\zaxxer\HikariCP\2.7.8\HikariCP-2.7.8.jar;C:\Users\owner\.m2\repository\org\springframework\spring-jdbc\5.0.5.RELEASE\spring-jdbc-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\hibernate\hibernate-core\5.2.16.Final\hibernate-core-5.2.16.Final.jar;C:\Users\owner\.m2\repository\org\hibernate\javax\persistence\hibernate-jpa-2.1-api\1.0.0.Final\hibernate-jpa-2.1-api-1.0.0.Final.jar;C:\Users\owner\.m2\repository\org\javassist\javassist\3.22.0-GA\javassist-3.22.0-GA.jar;C:\Users\owner\.m2\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;C:\Users\owner\.m2\repository\org\jboss\jandex\2.0.3.Final\jandex-2.0.3.Final.jar;C:\Users\owner\.m2\repository\dom4j\dom4j\1.6.1\dom4j-1.6.1.jar;C:\Users\owner\.m2\repository\org\hibernate\common\hibernate-commons-annotations\5.0.1.Final\hibernate-commons-annotations-5.0.1.Final.jar;C:\Users\owner\.m2\repository\javax\transaction\javax.transaction-api\1.2\javax.transaction-api-1.2.jar;C:\Users\owner\.m2\repository\org\springframework\data\spring-data-jpa\2.0.6.RELEASE\spring-data-jpa-2.0.6.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\data\spring-data-commons\2.0.6.RELEASE\spring-data-commons-2.0.6.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-orm\5.0.5.RELEASE\spring-orm-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\springframework\spring-tx\5.0.5.RELEASE\spring-tx-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\owner\.m2\repository\org\springframework\spring-aspects\5.0.5.RELEASE\spring-aspects-5.0.5.RELEASE.jar;C:\Users\owner\.m2\repository\org\hsqldb\hsqldb\2.3.4\hsqldb-2.3.4.jar;C:\Users\owner\.m2\repository\javax\xml\bind\jaxb-api\2.3.0\jaxb-api-2.3.0.jar mytools.spring.hello.Application . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.0.1.RELEASE) 2018-05-12 00:46:57.170 INFO 7944 --- [ main] mytools.spring.hello.Application : Starting Application on Hulk with PID 7944 (D:\Projects\Java\springboothelloworld\target\classes started by owner in D:\Projects\Java\springboothelloworld) 2018-05-12 00:46:57.170 INFO 7944 --- [ main] mytools.spring.hello.Application : No active profile set, falling back to default profiles: default 2018-05-12 00:46:57.220 INFO 7944 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@5340477f: startup date [Sat May 12 00:46:57 EEST 2018]; root of context hierarchy WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (file:/C:/Users/owner/.m2/repository/org/springframework/spring-core/5.0.5.RELEASE/spring-core-5.0.5.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release 2018-05-12 00:46:58.078 INFO 7944 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$6f5d8399] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 2018-05-12 00:46:58.370 INFO 7944 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http) 2018-05-12 00:46:58.390 INFO 7944 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2018-05-12 00:46:58.390 INFO 7944 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.29 2018-05-12 00:46:58.395 INFO 7944 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk-9.0.4\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0\libnvvp;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\libnvvp;C:\Intel\OpenCL\sdk\bin\x64;C:\Intel\OpenCL\sdk\bin\x86;C:\Intel\OpenCL\sdk\bin\Pin;C:\Intel\OpenCL\sdk\bin\GTPin;C:\Program Files\Haskell Platform\8.2.1\lib\extralibs\bin;C:\Program Files\Haskell Platform\8.2.1\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\libnvvp;C:\ProgramData\Oracle\Java\javapath;C:\Program Files\Microsoft MPI\Bin\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Git\cmd;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\dotnet\;C:\Program Files\Anaconda3;C:\Program Files\Anaconda3\Scripts;C:\Program Files\Anaconda3\Library\bin;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Haskell Platform\8.2.1\mingw\bin;D:\RunnableBins\myrepos;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\HaskellStack\bin;C:\Users\owner\AppData\Roaming\cabal\bin;C:\Users\owner\AppData\Local\Microsoft\WindowsApps;;.] 2018-05-12 00:46:58.480 INFO 7944 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2018-05-12 00:46:58.480 INFO 7944 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1260 ms 2018-05-12 00:46:58.570 INFO 7944 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/] 2018-05-12 00:46:58.575 INFO 7944 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 2018-05-12 00:46:58.575 INFO 7944 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 2018-05-12 00:46:58.575 INFO 7944 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 2018-05-12 00:46:58.575 INFO 7944 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 2018-05-12 00:46:58.695 INFO 7944 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... 2018-05-12 00:46:58.875 INFO 7944 --- [ main] hsqldb.db..ENGINE : open start - state modified 2018-05-12 00:46:58.885 INFO 7944 --- [ main] hsqldb.db..ENGINE : checkpointClose start 2018-05-12 00:46:58.885 INFO 7944 --- [ main] hsqldb.db..ENGINE : checkpointClose synched 2018-05-12 00:46:58.895 INFO 7944 --- [ main] hsqldb.db..ENGINE : checkpointClose script done 2018-05-12 00:46:58.915 INFO 7944 --- [ main] hsqldb.db..ENGINE : checkpointClose end 2018-05-12 00:46:58.915 INFO 7944 --- [ main] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Driver does not support get/set network timeout for connections. (feature not supported) 2018-05-12 00:46:58.915 INFO 7944 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed. 2018-05-12 00:46:58.945 INFO 7944 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default' 2018-05-12 00:46:58.960 INFO 7944 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [ name: default ...] 2018-05-12 00:46:59.010 INFO 7944 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.2.16.Final} 2018-05-12 00:46:59.010 INFO 7944 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found 2018-05-12 00:46:59.040 INFO 7944 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final} 2018-05-12 00:46:59.120 INFO 7944 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.HSQLDialect 2018-05-12 00:46:59.320 INFO 7944 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default' 2018-05-12 00:46:59.335 WARN 7944 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'application': Unsatisfied dependency expressed through field 'sessionFactory'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.hibernate.SessionFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 2018-05-12 00:46:59.335 INFO 7944 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default' 2018-05-12 00:46:59.335 INFO 7944 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2018-05-12 00:46:59.380 INFO 7944 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed. 2018-05-12 00:46:59.385 INFO 7944 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2018-05-12 00:46:59.390 INFO 7944 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2018-05-12 00:46:59.450 ERROR 7944 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter : *************************** APPLICATION FAILED TO START *************************** Description: Field sessionFactory in mytools.spring.hello.Application required a bean of type 'org.hibernate.SessionFactory' that could not be found. Action: Consider defining a bean of type 'org.hibernate.SessionFactory' in your configuration. Process finished with exit code 1
我的问题是我期望Spring Boot JPA自动配置能够为Hibernate DAO自动配置并连接SessionFactory。
SessionFactory特定于Hibernate，而Spring Boot会自动关联EntityManager对象，这对JPA更通用。
在我的Dao对象中将SessionFactory交换为EntityManager允许我使用Spring的自动配置来连接一切。
