springmvc+mybatis， DAO接口 在@Controller类中 @autowired就成功, 在其它类中 @autowired 就失败

Question

springmvcmybatis

Answer 1

<?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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
        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/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">    <context:component-scan base-package="com"/>     <mvc:annotation-driven/>       <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
            <property name="messageConverters">
            <list>
                <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
            </list>
        </property>
    </bean>
 
 <!-- 自动扫描cn.info.platform.mapper包下的Mapper接口  -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com" />
</bean>
  
 <mvc:resources mapping="/assets/**" location="/assets/"/>  
  <mvc:resources mapping="/css/**" location="/css/"/>   
   <mvc:resources mapping="/images/**" location="/images/"/>   
   <mvc:resources mapping="/js/**" location="/js/"/>   
   <mvc:resources mapping="/logs/**" location="/logs/"/>  
    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"  
          p:prefix="/" p:suffix=".jsp" />  
        
       <bean id="multipartResolver"  
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver"  
          p:defaultEncoding="utf-8" />  
          
  <!--创建jdbc数据源 -->    
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"    
        destroy-method="close">    
         <property name="driverClassName" value="com.mysql.jdbc.Driver"/>  
         <property name="url" value="jdbc:mysql://127.0.0.1:3306/ysoa"/>
         <property name="username" value="root"/>
         <property name="password" value="root"/> 
    </bean>  
    
   <!-- 创建SqlSessionFactory-->
   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
      <property name="dataSource" ref="dataSource" /> 
      <property  name="configLocation"  value="classpath:sqlMapConfig.xml"/>
   </bean>
  <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource"/>
    </bean>           
</beans>

Answer 2

这是我的spring-mvc配置，请指点

Answer 3

lz有几个spring配置文件？如果是一个，那一般不应该有问题

Answer 4

springmvc是吧
springmvc的话,spring生命区域和mvc的生命区域相对独立
贴你的web.xml来看,我估计你存在两套beans定义了,而他们又分别存在于不同的域用spring mvc的话,可以不加载spring的上下文listener,而是通过mvc模块来加载beans
比如这样:
<servlet>
<servlet-name>mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/mvc.xml classpath:/applicationContext.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>