Question

我正在编写一个Java应用程序，该应用程序应该公开一些rest api并建立db oracle连接。

我创建了一个用于定义DataSource，sessionFactory和transactionManager的类：

@Configuration
@ConfigurationProperties("oracle")
@EnableAutoConfiguration(exclude = { //
        DataSourceAutoConfiguration.class, //
        DataSourceTransactionManagerAutoConfiguration.class, //
        HibernateJpaAutoConfiguration.class })
public class BeanFactory {

    @Autowired
    private Environment env;

    @Bean(name = "dataSource")
    public DataSource getDataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();

        // See: application.properties
        dataSource.setDriverClassName(env.getProperty("spring.datasource.driver-class-name"));
        dataSource.setUrl(env.getProperty("spring.datasource.url"));
        dataSource.setUsername(env.getProperty("spring.datasource.username"));
        dataSource.setPassword(env.getProperty("spring.datasource.password"));

        return dataSource;
    }
    @Autowired
    @Bean(name = "sessionFactory")
    public SessionFactory getSessionFactory(DataSource dataSource) throws Exception {
        Properties properties = new Properties();

        // See: application.properties
        properties.put("hibernate.dialect", env.getProperty("spring.jpa.properties.hibernate.dialect"));
        properties.put("show_sql", env.getProperty("spring.jpa.show-sql"));
        properties.put("current_session_context_class", env.getProperty("spring.jpa.properties.hibernate.current_session_context_class"));
        properties.put("hibernate.temp.use_jdbc_metadata_defaults",false);

        // Fix Postgres JPA Error:
        // Method org.postgresql.jdbc.PgConnection.createClob() is not yet implemented.

        LocalSessionFactoryBean factoryBean = new LocalSessionFactoryBean();

        // Package contain entity classes
        factoryBean.setPackagesToScan(new String[] { "" });
        factoryBean.setDataSource(dataSource);
        factoryBean.setHibernateProperties(properties);
        factoryBean.afterPropertiesSet();
        //
        SessionFactory sf = factoryBean.getObject();
        System.out.println("## getSessionFactory: " + sf);
        return sf;
    }

    @Autowired
    @Bean(name = "transactionManager")
    public HibernateTransactionManager getTransactionManager(SessionFactory sessionFactory) {
        HibernateTransactionManager transactionManager = new HibernateTransactionManager(sessionFactory);

        return transactionManager;
    }

}

然后我创建一个尚未实现的类DAO，就像一个存根。我需要sessionFactory才能创建它：

@Repository
@Transactional
public class ConnectionDAO {

    @Autowired
    private SessionFactory sessionFactory;


    public Customer getCustomer(String name){



        return new Customer("","");
    }

    public Boolean setCustomer(String name, String surname){
        /*
         *
         */
        return false;
    }

}

最后，我有了带有API REST组件的类。我尝试将DAO对象创建为自动装配或通过新方法创建，但仍然无法使用：

@RestController
public class TrainingRestController {

    @Autowired
    private ConnectionDAO daoConnection;

    @RequestMapping("/GetGroup")
    @GetMapping
    public Customer retrieve(@RequestParam(value="nome") String name){
        log.info("Retrieving " + name);
        return daoConnection.getCustomer(name);
    }

    @RequestMapping("/SetGroup")
    @PostMapping
    public boolean set(String name, String surname){
        log.info("Setting " + name + " " + surname);
        return daoConnection.setCustomer(name, surname);
    }

}

问题是未填充到DAO类中的sessionFactory。我也尝试将autoWire删除到sessionFactory Bean上的BeanFactory类中，但是不起作用。我缺少一些注释吗？

如果将daoConnection设置为Autowired，我将执行公共客户检索（）：

java.lang.ClassCastException： org.springframework.orm.jpa.EntityManagerHolder无法转换为 org.springframework.orm.hibernate5.SessionHolder位于 org.springframework.orm.hibernate5.HibernateTransactionManager.doGetTransaction（HibernateTransactionManager.java:399）〜[spring-orm-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction（AbstractPlatformTransactionManager.java:342）〜[spring-tx-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary（TransactionAspectSupport.java:474）〜[spring-tx-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction（TransactionAspectSupport.java:289）〜[spring-tx-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.transaction.interceptor.TransactionInterceptor.invoke（TransactionInterceptor.java:98）〜[spring-tx-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:185）〜[spring-aop-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.aop.framework.CglibAopProxy $ DynamicAdvisedInterceptor.intercept（CglibAopProxy.java:688）〜[spring-aop-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 com.test.ConnectionDAO $$ EnhancerBySpringCGLIB $$ 7579b8ee.getCustomer（）〜[classes /：na]在 com.test.TrainingRestController.retrieve（TrainingRestController.java:18）〜[classes /：na]在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）〜[na：1.8.0_181]在 sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）〜[na：1.8.0_181]在 sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）〜[na：1.8.0_181]在java.lang.reflect.Method.invoke（Method.java:498）〜[na：1.8.0_181]在 org.springframework.web.method.support.InvocableHandlerMethod.doInvoke（InvocableHandlerMethod.java:209）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest（InvocableHandlerMethod.java:136）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle（ServletInvocableHandlerMethod.java:102）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod（RequestMappingHandlerAdapter.java:891）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal（RequestMappingHandlerAdapter.java:797）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle（AbstractHandlerMethodAdapter.java:87）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:991）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:925）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:974）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:866）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 javax.servlet.http.HttpServlet.service（HttpServlet.java:635）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:851）〜[spring-webmvc-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 javax.servlet.http.HttpServlet.service（HttpServlet.java:742）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:231）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）〜[tomcat-embed-websocket-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.springframework.web.filter.RequestContextFilter.doFilterInternal（RequestContextFilter.java:99）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal（HttpPutFormContentFilter.java:109）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:93）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:200）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）〜[spring-web-5.0.9.RELEASE.jar：5.0.9.RELEASE]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:198）〜[tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:96） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:493） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:140） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:81） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:87） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:342） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.coyote.http11.Http11Processor.service（Http11Processor.java:800） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.coyote.AbstractProcessorLight.process（AbstractProcessorLight.java:66） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.coyote.AbstractProtocol $ ConnectionHandler.process（AbstractProtocol.java:806） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun（NioEndpoint.java:1498） [tomcat-embed-core-8.5.34.jar：8.5.34]在 org.apache.tomcat.util.net.SocketProcessorBase.run（SocketProcessorBase.java:49） [tomcat-embed-core-8.5.34.jar：8.5.34]在 java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1149） [na：1.8.0_181]在 java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:624） [na：1.8.0_181]在 org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run（TaskThread.java:61） [tomcat-embed-core-8.5.34.jar：8.5.34]在 java.lang.Thread.run（Thread.java:748）[na：1.8.0_181]

这是transactionManager的创建。我尝试从sessionFactory获取currentSession

SpringBoot无法自动连接DAO类中的SessionFactory

0 个答案: