Error creating bean with name 'userController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.cn.me.service.UserService com.cn.me.controller.UserController.userservice; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceImp': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.cn.me.dao.Dao com.cn.me.service.UserServiceImp.dao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.cn.me.dao.Dao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.cn.me.service.UserService com.cn.me.controller.UserController.userservice; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceImp': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.cn.me.dao.Dao com.cn.me.service.UserServiceImp.dao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.cn.me.dao.Dao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:531)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:295)
... 29 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceImp': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.cn.me.dao.Dao com.cn.me.service.UserServiceImp.dao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.cn.me.dao.Dao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
service接口
package com.cn.me.service;
import java.util.List;
import com.cn.me.pojo.User;
public interface UserService {
public List getall();
}
service实现类
package com.cn.me.service;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.cn.me.dao.Dao;
import com.cn.me.pojo.User;
@Service
public class UserServiceImp implements UserService {
@Autowired
private Dao dao;
@Override
public List<User> getall() {
// TODO Auto-generated method stub
return dao.getall();
}
}
Controller
package com.cn.me.controller;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import com.cn.me.pojo.User;
import com.cn.me.service.UserService;
@Controller
public class UserController {
@Autowired
private UserService userservice;
public String service(Map<String,Object>map)
{
List<User> list=userservice.getall();
map.put("allusers", list);
return "list";
}
}
springmvc配置
<?xml version="1.0" encoding="UTF-8"?>
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/context/spring-tx-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/context/spring-aop-3.2.xsd ">
/context:component-scan
mvc:annotation-driven/
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/view/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
spring配置
<?xml version="1.0" encoding="UTF-8"?>
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:mybatis="http://www.springframework.org/schema/mybatis"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/mybatis
http://www.springframework.org/schema/mybatis/spring-mybatis-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/context/spring-tx-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/context/spring-aop-3.2.xsd ">
<context:component-scan base-package="com.cn.me">
</context:component-scan>
<mvc:annotation-driven/>
<!-- 数据源 -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >
<property name="driver" value="org.gjt.mm.mysql.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/mybatis"/>
<property name="username" value="root"/>
<property name="password" value=""/>
</bean>
<!-- 事物控制 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- sqlsessionfactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="mapperLocations" value="classpath:com/cn/me/dao/*.xml"></property>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.cn.me.dao"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
</beans>
web.xml配置
<?xml version="1.0" encoding="UTF-8"?>
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
org.springframework.web.context.ContextLoaderListener
<!-- 加载spring -->
contextConfigLocation
classpath:applicationContext.xml
<welcome-file-list>index.jsp</welcome-file-list>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
contextConfigLocation
classpath:springmvc.xml
1
spring
/
</web-app>
