下面没有创建bean dataSource。由于这个原因，在创建entityManagerFactory bean时会出现问题。我的问题是为什么没有创建bean dataSource？bean没有被创建的原因是与内存数据库中的H2的连接问题吗？会是什么原因呢？我需要在类路径中添加任何内容吗？

@TestConfiguration
@ActiveProfiles("localtest")
@TestPropertySource( locations = "classpath:application-localtest.properties")
public class H2Test {

    @Autowired
    private Environment env;

    @Value("org.h2.Driver")
    private String dbUrl;

    @Value("jdbc:h2:mem:test")
    private String dbDriverClass;
    @Value("sa")
    private String dbUser;

    @Primary
    @Bean(name="dataSource")
    @Profile("localtest")
    @ConditionalOnMissingBean

    public DataSource dataSource() throws Exception{

        System.out.println("___ DataSource construction started ___");

        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName(dbDriverClass);
        dataSource.setUrl(dbUrl);
        dataSource.setUsername(dbUser);
        dataSource.setPassword("");

        ResourceDatabasePopulator rdp = new ResourceDatabasePopulator();
        rdp.setScripts(new ClassPathResource("/test/data/Create_Tables.sql"));

        rdp.execute(dataSource);
        return dataSource;

    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() throws Exception {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        em.setDataSource(dataSource());
        em.setPackagesToScan(new String[]{
                "xx.xxx.xxxx"});
        em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
        em.setJpaProperties(additionalProperties());
        return em;
    }

日志中显示的错误是-
创建x.xx.xx.xx.xxx.H2Test中定义的名称为“entityManagerFactory”的bean时出错：通过工厂方法示例化Bean失败;嵌套的异常是org.springframework.beans。Bean示例化异常：示例化[org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean]失败：工厂方法“entityManagerFactory”引发异常;嵌套异常为org.springframework.beans.factory.NoSuchBeanDefinitionException：没有名为“dataSource”的Bean可用
我在www.example.com中定义了所有内容application-localtest.properties来创建连接。看起来像-

spring.profiles.active=localtest
spring.config.use-legacy-processing=true
spring.datasource.url=jdbc:h2:mem:test
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect
spring.jpa.defer-datasource-initialization=true
spring.sql.init.mode=always
spring.h2.console.path=/h2-console
h2.tcp.enabled=true
spring.jpa.generate-ddl=true
spring.jpa.properties.hibernate.format_sql=true
spring.h2.console.enabled=true
spring.jpa.show-sql=true

问题出在哪里？我应该把注意力集中在哪里？