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我的spring-mvc项目存在问题。 @autowiring不会创建所需的bean。我已经为此工作了4天以上，并且关注了所有搜索结果。但没有任何工作。有人可以请看看。谢谢Spring-MVC-创建名为'productsController'的bean时出错：自动布线依赖关系注入失败
错误堆栈是这样的：
org.springframework.beans.factory.BeanCreationException：错误创建名为“ProductsController的”豆：自动装配依赖注入失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装入字段：private com.davis.ty.service.ProductsService com.davis.ty.controller.ProductsController.productsService;嵌套异常是org.springframework.beans.factory.NoSuchBeanDefinitionException：找不到符合要求的[com.davis.ty.service.ProductsService]类型的合格bean：期望至少1个符合此依赖关系自动装配候选资格的bean。依赖注解：{@ org.springframework.beans.factory.annotation.Autowired（必需=真）} org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:292）
我的servlet。 XML是：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<context:annotation-config />
<context:component-scan base-package="com.davis.ty" />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<mvc:resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties" />
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages" />
<property name="defaultEncoding" value="UTF-8" />
</bean>
<bean id="dataSource"
class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close"
p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}" p:username="${jdbc.username}"
p:password="${jdbc.password}" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
我的控制器：
package com.davis.ty.controller;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.davis.ty.domain.Products;
import com.davis.ty.service.ProductsService;
@Controller
public class ProductsController {
@Autowired
private ProductsService productsService;
@RequestMapping(value = "/index", method = RequestMethod.GET)
public String listProducts (Map<String, Object> map) {
System.out.println("index");
map.put("products", new Products());
map.put("productsList", productsService.listProducts());
return "index";
}
@RequestMapping(value = "/add", method = RequestMethod.POST)
public String addProducts(@ModelAttribute("products")
Products products, BindingResult result) {
productsService.addProducts(products);
return "redirect:/index";
}
@RequestMapping("/delete/{Id}")
public String deleteProducts(@PathVariable("Id")
Integer Id) {
productsService.removeProducts(Id);
return "redirect:/index";
}
}
我的服务程序是：
package com.davis.ty.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.davis.ty.dao.ProductsDAO;
import com.davis.ty.domain.Products;
@Service
public class ProductsServiceImpl {
@Autowired
private ProductsDAO productsDAO;
@Transactional
public void addProducts(Products products){
productsDAO.addProduct(products);
}
@Transactional
public List<Products> listProducts() {
return productsDAO.listProducts();
}
@Transactional
public void removeProducts(Integer id) {
productsDAO.removeProducts(id);
}
}
非常感谢您的回复。 –
我不相信这个，但我得到完全相同的错误。但我无法获得发布或清理服务器工作区的选项。我想这可能与此有关。我正在努力。当我进行更改以实现界面时，我的项目已经失灵。 Eclipse甚至不会将它们视为服务器，就像另一个项目一样 –