org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction ao salvar produto | Spring MVC I: Criando aplicações web

Estou tentando salvar o produto e está dando o seguinte erro .

`ype Exception Report

Message Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.UnsupportedOperationException: The application must supply JDBC connections

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.UnsupportedOperationException: The application must supply JDBC connections org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:973) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863) javax.servlet.http.HttpServlet.service(HttpServlet.java:661) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Root Cause

org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.UnsupportedOperationException: The application must supply JDBC connections org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:430) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:438) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:261) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653) org.casadocodigo.loja.daos.ProdutoDao$$EnhancerBySpringCGLIB$$c4ffe599.gravar() org.casadocodigo.loja.controllers.ProdutosController.grava(ProdutosController.java:23) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java

` Segue codigo no link

https://github.com/GuilhermeCesar/springmvc

Senhores o problema era que meu controle de transação estava apontando para para daos e não para models.

` @Bean public LocalContainerEntityManagerFactoryBean entityManagerFactory() { LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean(); JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();

    factoryBean.setJpaVendorAdapter(vendorAdapter);

    DriverManagerDataSource dataSource = new DriverManagerDataSource();
    dataSource.setUsername("root");
    dataSource.setPassword("root");
    dataSource.setUrl("jdbc:mysql://localhost:3306/casadocodigo");
    dataSource.setDriverClassName("com.mysql.jdbc.Driver");

    factoryBean.setDataSource(dataSource);

    Properties props = new Properties();
    props.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
    props.setProperty("hibernate.show_sql", "true");
    props.setProperty("hibernate.hbm2ddl.auto", "update");

    factoryBean.setJpaProperties(props);

    factoryBean.setPackagesToScan("org.casadocodigo.loja.models");

    return factoryBean;
}