【发布时间】：2019-06-10 19:32:55
【问题描述】：
我正在尝试在春季创建电子商务。在我的项目中包含“Hibernate”和“H2”数据库后，我得到了错误。错误如下。我非常努力，但没有找到任何解决方案。
错误：
org.springframework.beans.factory.BeanCreationException: 错误 创建名为“homeController”的bean：注入自动装配 依赖失败；嵌套异常是 org.springframework.beans.factory.BeanCreationException：不能 autowire 字段：私有 com.home.dao.ProductDao com.home.controller.homeController.productDao；嵌套异常是 org.springframework.beans.factory.BeanCreationException：错误 创建名为 'productDaoImpl' 的 bean：注入 autowired 依赖失败；嵌套异常是 org.springframework.beans.factory.BeanCreationException：不能 自动装配字段：私有 org.hibernate.SessionFactory com.home.dao.impl.ProductDaoImpl.sessionFactory；嵌套异常是 org.springframework.beans.factory.BeanCreationException：错误 创建 ServletContext 中定义的名称为“sessionFactory”的 bean 资源[/WEB-INF/applicationContext.xml]：init方法的调用 失败的;嵌套异常是 org.hibernate.exception.GenericJDBCException：无法打开 JDBC DDL 执行连接
applicationContext.xml
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.h2.Driver" />
<property name="url" value="jdbc:h2:~/test" />
<property name="username" value="sa" />
<property name="password" value="" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
</props>
</property>
<property name="packagesToScan">
<list>
<value>com.home</value>
</list>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
home-servlet.xml
<context:component-scan base-package="com.home">
<context:include-filter type="aspectj" expression="com.home.*" />
</context:component-scan>
<mvc:annotation-driven />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<mvc:resources mapping="/resources/**"
location="/WEB-INF/resources/" cache-period="31556926" />
<tx:annotation-driven />
web.xml
<display-name>Archetype Created Web Application</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/home-servlet.xml,
/WEB-INF/applicationContext.xml
</param-value>
</context-param>
<servlet>
<servlet-name>home</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>home</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
homeController.java
@Controller
@Configuration
public class homeController {
@Autowired
private ProductDao productDao;
@RequestMapping("/")
public String home() {
return "views/home";
}
@RequestMapping("/productList")
public String getProducts(Model model) {
List<Product> products = productDao.getAllProducts();
model.addAttribute("products", products);
return "views/productList";
}
@RequestMapping("/productList/viewProduct/{productId}")
public String viewProduct(@PathVariable String productId, Model model) throws IOException{
Product product = productDao.getProductById(productId);
model.addAttribute(product);
return "views/viewProduct";
}
}
ProductDaoImpl.java
@Repository
@Transactional
public class ProductDaoImpl implements ProductDao {
@Autowired
private SessionFactory sessionFactory;
public void addProduct(Product product) {
Session session = sessionFactory.getCurrentSession();
session.saveOrUpdate(product);
session.flush();
}
public Product getProductById(String id) {
Session session = sessionFactory.getCurrentSession();
Product product = (Product) session.get(Product.class, id);
session.flush();
return product;
}
public List<Product> getAllProducts() {
Session session = sessionFactory.getCurrentSession();
Query query = session.createQuery("from Product");
List<Product> products = query.list();
session.flush();
return products;
}
public void deleteProduct (String id) {
Session session = sessionFactory.getCurrentSession();
session.delete(getProductById(id));
session.flush();
}
}
Product.java 代码：
@Entity
公共类产品{
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private String productId;
private String productName;
private String productCategory;
private String productDescription;
private double productPrice;
private String productCondition;
private String productStatus;
private int unitInStock;
private String productManufacturer;
public String getProductId() {
return productId;
}
public void setProductId(String productId) {
this.productId = productId;
}
public String getProductName() {
return productName;
}
public void setProductName(String productName) {
this.productName = productName;
}
public String getProductCategory() {
return productCategory;
}
public void setProductCategory(String productCategory) {
this.productCategory = productCategory;
}
public String getProductDescription() {
return productDescription;
}
public void setProductDescription(String productDescription) {
this.productDescription = productDescription;
}
public double getProductPrice() {
return productPrice;
}
public void setProductPrice(double productPrice) {
this.productPrice = productPrice;
}
public String getProductCondition() {
return productCondition;
}
public void setProductCondition(String productCondition) {
this.productCondition = productCondition;
}
public String getProductStatus() {
return productStatus;
}
public void setProductStatus(String productStatus) {
this.productStatus = productStatus;
}
public int getUnitInStock() {
return unitInStock;
}
public void setUnitInStock(int unitInStock) {
this.unitInStock = unitInStock;
}
public String getProductManufacturer() {
return productManufacturer;
}
public void setProductManufacturer(String productManufacturer) {
this.productManufacturer = productManufacturer;
}
}
ProductDao.java 代码： 公共接口 ProductDao {
void addProduct(Product product);
Product getProductById(String id);
List<Product> getAllProducts();
void deleteProduct(String id);
}
项目结构或目录图片： Project Structure or Directory at my Eclipse Oxygen IDE
【问题讨论】：
-
可以分享一下目录结构和
ProductDao吗？ -
#Nicholas K，请查看更新帖子，我在其中添加了 ProductDao .java 代码并检查了我的项目目录结构的图像。坦克供您发表评论。
标签： java spring hibernate maven h2