mybatis mapper无法注入

keisunique 2017-07-28 02:05:41

前几天同样的问题，换了配置文件就好了，没去了解错在哪里，这回又出错了，还是找不到错误......

问题：
mybatis逆向工程生成的mapper无法注入。spring的mapper扫描也配置了，mapper.xml文件的namespace也没问题，不明白问题出现在哪里，为什么会注入不了。
源码github地址https://github.com/keisunique/MySSM/tree/master/src/main

上图

spring配置文件



<?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:context="http://www.springframework.org/schema/context"

       xmlns:task="http://www.springframework.org/schema/task"

       xmlns:mybatis="http://mybatis.org/schema/mybatis-spring" xmlns:tx="http://www.springframework.org/schema/tx"

       xsi:schemaLocation="http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.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://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">



    <!--自动扫描bean-->

    <context:component-scan base-package="com.ke">

        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>

    <!--引入外部配置文件-->

    <context:property-placeholder location="classpath:db.properties"/>



    <!--支持自动化任务-->

    <task:annotation-driven/>



    <!--数据源-->

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">

        <property name="driverClassName" value="${jdbc.driver}"/>

        <property name="url" value="${jdbc.url}"/>

        <property name="username" value="${jdbc.username}"/>

        <property name="password" value="${jdbc.password}"/>

        <property name="maxActive" value="10" />

        <property name="minIdle" value="5" />

    </bean>



    <!--mybatis的SqlSessionFactoy配置-->

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="configLocation" value="classpath:mybatisConfig.xml"/>

        <property name="dataSource" ref="dataSource"/>

    </bean>



    <!--扫描mapper-->

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="com.ke.mapper"/>

        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>

    </bean>



    <!--开启事务管理器注解方式-->

    <tx:annotation-driven transaction-manager="transactionManager"/>



    <bean id="transactionManager"

          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="dataSource"/>

    </bean>



</beans>

springmvc配置文件



<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

       xmlns:aop="http://www.springframework.org/schema/aop"

       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"

       xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd

       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">



    <context:component-scan base-package="com.ke.controller">

        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service"/>

        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Repository"/>

    </context:component-scan>



    <!--自动注册基于注解风格的DefaultAnnotationHandlerMapping和AnotationMethodHandlerAdapter-->

    <!--此处使用conversionService为了自从注册HttpMessageConverter支持@RequestBody和@ResponseBody-->

    <mvc:annotation-driven conversion-service="conversionService"/>



    <!--用于解析@RequestBody-->

    <bean id="conversionService"

          class="org.springframework.format.support.FormattingConversionServiceFactoryBean"/>



    <!--视图解析器-->

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/views/"/>

        <property name="suffix" value=".jsp"/>

    </bean>







</beans>

web.xml文件



<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xmlns:context="http://www.springframework.org/schema/context"

         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

          http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"

         version="3.0">

    <!--welcome pages-->

    <welcome-file-list>

        <welcome-file>index.jsp</welcome-file>

    </welcome-file-list>



    <!--contextLoaderListener继承ServletContextLisener,web容器启动时自动装配applicationContext的配置信息-->

    <listener>

        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener>



    <!--用于设置context的参数,如果不设置contextConfigLocation则默认的spring配置文件applicationContext.xml放在WEB-INF目录下-->

    <context-param>

        <param-name>contextConfigLocation</param-name>

        <param-value>classpath:spring.xml</param-value>

    </context-param>





    <!-- 解决post乱码 -->

    <filter>

        <filter-name>CharacterEncodingFilter</filter-name>

        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>

        <init-param>

            <param-name>encoding</param-name>

            <param-value>utf-8</param-value>

        </init-param>

    </filter>

    <filter-mapping>

        <filter-name>CharacterEncodingFilter</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>



    <!--SpringMVC 注册的 Servlet-->

    <servlet>

        <servlet-name>SpringMVC</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>classpath:spring-mvc.xml</param-value>

        </init-param>

    </servlet>

    <servlet-mapping>

        <servlet-name>SpringMVC</servlet-name>

        <url-pattern>/</url-pattern>

    </servlet-mapping>







    <!--log4j配置文件-->

    <context-param>

        <param-name>log4jConfigLocation</param-name>

        <param-value>classpath:properties/log4j.properties</param-value>

    </context-param>





</web-app>