Spring启动，mvc，hibernate和mysql配置

Spring启动，mvc，hibernate和mysql配置 - sessionFactory错误(Spring boot, mvc, hibernate and mysql configuration - sessionFactory error)

我是春季靴子的新手。 我想用mysql，hibernate，jpa和jsp配置spring boot。 当我想启动它时，我会产生一个错误：“创建名为'sessionFactory'等的bean时出错”，更多信息来自stacktrace：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [com/budget/configs/DatabaseConfig.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Class name must not be null at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:732) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at com.budget.HomeBudgetApplication.main(HomeBudgetApplication.java:15) [classes/:na] Caused by: java.lang.IllegalArgumentException: Class name must not be null at org.springframework.util.Assert.notNull(Assert.java:115) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.util.ClassUtils.convertClassNameToResourcePath(ClassUtils.java:960) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.scanPackages(LocalSessionFactoryBuilder.java:282) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:434) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] ... 16 common frames omitted

pom.xml`4.0.0

<groupId>com.budget</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>homeBudget</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.1.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-el</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-rest</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-validation</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web-services</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.hibernate.javax.persistence/hibernate-jpa-2.1-api --> <dependency> <groupId>org.hibernate.javax.persistence</groupId> <artifactId>hibernate-jpa-2.1-api</artifactId> <version>1.0.0.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <packaging>war</packaging>

`

HomeBudgetApplication.java

@Configuration @EnableAutoConfiguration() @ComponentScan({"com.budget.*"}) public class HomeBudgetApplication { public static void main(String[] args) { SpringApplication.run(HomeBudgetApplication.class, args); } }

DatabaseConfig.java

@Configuration @ComponentScan("com.budget.*") @EnableWebMvc @EnableTransactionManagement @PropertySource("classpath:application.properties") public class DatabaseConfig extends WebMvcConfigurerAdapter { @Autowired private Environment env; @Bean public DataSource dataSource() { DriverManagerDataSource dataSource = new DriverManagerDataSource(); dataSource.setDriverClassName(env.getProperty("spring.datasource.driverClassName")); dataSource.setUrl(env.getProperty("spring.datasource.url")); dataSource.setUsername(env.getProperty("spring.datasource.username")); dataSource.setPassword(env.getProperty("spring.datasource.password")); return dataSource; } @Bean public LocalSessionFactoryBean sessionFactory() { LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean(); sessionFactoryBean.setDataSource(dataSource()); sessionFactoryBean.setPackagesToScan(env.getProperty("com.budget.*")); sessionFactoryBean.setHibernateProperties(hibProperties()); return sessionFactoryBean; } private Properties hibProperties() { Properties properties = new Properties(); properties.put("spring.jpa.database-platform", env.getProperty("spring.jpa.database-platform")); properties.put("spring.jpa.hibernate.ddl-auto", env.getProperty("spring.jpa.hibernate.ddl-auto")); properties.put("spring.jpa.show-sql", env.getProperty("spring.jpa.show-sql")); return properties; } @Bean public HibernateTransactionManager transactionManager() { HibernateTransactionManager transactionManager = new HibernateTransactionManager(); transactionManager.setSessionFactory(sessionFactory().getObject()); return transactionManager; } @Bean public InternalResourceViewResolver viewResolver() { InternalResourceViewResolver resolver = new InternalResourceViewResolver(); resolver.setPrefix("/WEB-INF/jsp/"); resolver.setSuffix(".jsp"); return resolver; } }

application.properties

'spring.datasource.driverClassName=com.mysql.jdbc.Driver spring.datasource.url = jdbc:mysql://localhost:3306/budget spring.datasource.username=marcin spring.datasource.password=marcin123 spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=update entitymanager.packages.to.scan=com.budget'

I am new in spring boot. I want to configure spring boot with mysql, hibernate, jpa and jsp. When i want to start it i gen an error: "Error creating bean with name 'sessionFactory' etc.", more in stacktrace:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [com/budget/configs/DatabaseConfig.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Class name must not be null at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:732) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] at com.budget.HomeBudgetApplication.main(HomeBudgetApplication.java:15) [classes/:na] Caused by: java.lang.IllegalArgumentException: Class name must not be null at org.springframework.util.Assert.notNull(Assert.java:115) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.util.ClassUtils.convertClassNameToResourcePath(ClassUtils.java:960) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.scanPackages(LocalSessionFactoryBuilder.java:282) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:434) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] ... 16 common frames omitted

pom.xml `4.0.0

<groupId>com.budget</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>homeBudget</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.1.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-el</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-rest</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-validation</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web-services</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.hibernate.javax.persistence/hibernate-jpa-2.1-api --> <dependency> <groupId>org.hibernate.javax.persistence</groupId> <artifactId>hibernate-jpa-2.1-api</artifactId> <version>1.0.0.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <packaging>war</packaging>

`

HomeBudgetApplication.java

@Configuration @EnableAutoConfiguration() @ComponentScan({"com.budget.*"}) public class HomeBudgetApplication { public static void main(String[] args) { SpringApplication.run(HomeBudgetApplication.class, args); } }

DatabaseConfig.java

@Configuration @ComponentScan("com.budget.*") @EnableWebMvc @EnableTransactionManagement @PropertySource("classpath:application.properties") public class DatabaseConfig extends WebMvcConfigurerAdapter { @Autowired private Environment env; @Bean public DataSource dataSource() { DriverManagerDataSource dataSource = new DriverManagerDataSource(); dataSource.setDriverClassName(env.getProperty("spring.datasource.driverClassName")); dataSource.setUrl(env.getProperty("spring.datasource.url")); dataSource.setUsername(env.getProperty("spring.datasource.username")); dataSource.setPassword(env.getProperty("spring.datasource.password")); return dataSource; } @Bean public LocalSessionFactoryBean sessionFactory() { LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean(); sessionFactoryBean.setDataSource(dataSource()); sessionFactoryBean.setPackagesToScan(env.getProperty("com.budget.*")); sessionFactoryBean.setHibernateProperties(hibProperties()); return sessionFactoryBean; } private Properties hibProperties() { Properties properties = new Properties(); properties.put("spring.jpa.database-platform", env.getProperty("spring.jpa.database-platform")); properties.put("spring.jpa.hibernate.ddl-auto", env.getProperty("spring.jpa.hibernate.ddl-auto")); properties.put("spring.jpa.show-sql", env.getProperty("spring.jpa.show-sql")); return properties; } @Bean public HibernateTransactionManager transactionManager() { HibernateTransactionManager transactionManager = new HibernateTransactionManager(); transactionManager.setSessionFactory(sessionFactory().getObject()); return transactionManager; } @Bean public InternalResourceViewResolver viewResolver() { InternalResourceViewResolver resolver = new InternalResourceViewResolver(); resolver.setPrefix("/WEB-INF/jsp/"); resolver.setSuffix(".jsp"); return resolver; } }

application.properties

'spring.datasource.driverClassName=com.mysql.jdbc.Driver spring.datasource.url = jdbc:mysql://localhost:3306/budget spring.datasource.username=marcin spring.datasource.password=marcin123 spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=update entitymanager.packages.to.scan=com.budget'

最满意答案

首先使用框架而不是围绕框架工作。 您还声明要使用Spring Boot和JPA，但是您的配置显示您正在努力不使用Spring Boot并且您不使用JPA而是使用普通的hibernate。

首先删除DatabaseConfig 。 （是的，删除它）。

将HomeBudgetApplication移动到com.bugdet并删除所有注释并替换为简单的@SpringBootApplication 。

@SpringBootApplication public class HomeBudgetApplication { public static void main(String[] args) { SpringApplication.run(HomeBudgetApplication.class, args); } }

在application.properties添加spring.mvc.view属性以自动配置InternalResourceViewResolver 。 同时删除已经为您添加的entitymanager.packages.to.scan 。

spring.datasource.driverClassName=com.mysql.jdbc.Driver spring.datasource.url = jdbc:mysql://localhost:3306/budget spring.datasource.username=marcin spring.datasource.password=marcin123 spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=update spring.mvc.view.prefix=/WEB-INF/jsp/ spring.mvc.view.suffix=.jsp

其他所有内容都将由Spring Boot配置。 它将检测您的web，jpa和事务，并将自动配置它。

如果您有基于SessionFactory任何存储库等，则将其替换为在EntityManager上工作。

First use the framework and not work around the framework. You also state you want to use Spring Boot and JPA but your configuraiton shows you are trying very hard not to use Spring Boot and that you don't use JPA but plain hibernate.

First remove your DatabaseConfig. (Yes remove it).

Move your HomeBudgetApplication to com.bugdet and remove all annotations and replace with a simple @SpringBootApplication.

@SpringBootApplication public class HomeBudgetApplication { public static void main(String[] args) { SpringApplication.run(HomeBudgetApplication.class, args); } }

In your application.properties add spring.mvc.view properties to have the InternalResourceViewResolver automatically configured. ALso remove the entitymanager.packages.to.scan as that is added for you already.

spring.datasource.driverClassName=com.mysql.jdbc.Driver spring.datasource.url = jdbc:mysql://localhost:3306/budget spring.datasource.username=marcin spring.datasource.password=marcin123 spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=update spring.mvc.view.prefix=/WEB-INF/jsp/ spring.mvc.view.suffix=.jsp

Everything else will be configured by Spring Boot. It will detect your web, jpa and transactions and will automatically configure it.

If you have any repository etc. based on SessionFactory replace it to work on the EntityManager instead.