Spring + SpringMVC + Mybatis 整合,mapper 加载失败,请问是什么原因

柳叁 2016-09-20 05:55:46
新人。 整合 SSM 框架,mapper加载失败



其实是昨天弄完的,昨天早上一直加载失败,后来一顿操作,虽然idea显示在代码里,那个mapper加载的地方是有红色波浪线的,但是项目可以跑起来,往数据库增删改查也可以。今天早上也是可以的。。。。。。。然后吃了个午饭,就歇菜了。

mapper文件:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.testForSSM.mapper.UserMapper">
<resultMap id="BaseResultMap" type="com.testForSSM.entity.User">
<constructor>
<idArg column="id" jdbcType="INTEGER" javaType="java.lang.Integer"/>
<arg column="nickname" jdbcType="VARCHAR" javaType="java.lang.String"/>
<arg column="state" jdbcType="INTEGER" javaType="java.lang.Integer"/>
</constructor>
</resultMap>
<insert id="insertUser" parameterType="com.testForSSM.entity.User">
INSERT INTO t_user (`nickname`,`state`) VALUE(#{nickname},#{state});
</insert>

<select id="selectUserById" parameterType="int" resultType="com.testForSSM.entity.User">
SELECT * FROM t_user WHERE id = #{id};
</select>

<select id="selectUserByName" parameterType="string" resultType="com.testForSSM.entity.User">
SELECT * FROM t_user WHERE nickname = #{nickname};
</select>

<select id="selectUserByState" parameterType="int" resultType="com.testForSSM.entity.User">
SELECT * FROM t_user WHERE state = #{state};
</select>

<select id="selectUserName" parameterType="int" resultType="string">
SELECT nickname FROM t_user WHERE id=#{id};
</select>
<select id="selectUserList" parameterType="string" resultType="com.testForSSM.entity.User">
SELECT * FROM t_user WHERE nickname=#{nickname};
</select>

</mapper>


dao文件:
package com.testForSSM.dao.impl;


import com.testForSSM.dao.UserDao;
import com.testForSSM.entity.User;
import com.testForSSM.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.List;

/**
* Created by admin on 2016/9/18.
*/

@Component("userDao")
public class UserDaoImpl implements UserDao {

@Autowired
private UserMapper userMapper;


@Override
public int insertUser(User user) {
System.out.println(user.toString());
userMapper.insertUser(user);
return 0;
}

@Override
public User selectUserById(int id) {
return userMapper.selectUserById(id);
}

@Override
public User selectUserByNickname(String nickname) {
return userMapper.selectUserByName(nickname);
}

@Override
public User selectUserByState(int state) {
return userMapper.selectUserByState(state);
}

@Override
public String selectUserName(int id) {
return userMapper.selectUserName(id);
}

@Override
public List<User> selectUserList(String nickname) {
return userMapper.selectUserList(nickname);
}


}


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qq_24430759 2016-12-02
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楼主,我也碰到了这个问题,可以告诉下我怎么解决的吗?谢谢
qq_24430759 2016-12-02
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柳叁 2016-10-20
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最后找公司的前辈解决了,谢谢您关心
小灯光环 2016-09-20
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报什么异常?
柳叁 2016-09-20
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补充文件: spring配置文件: ApplicationContext.xml
<?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:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">
    <!--配置  使得bean可以进行自动加载-->
    <context:annotation-config/>
    <!-- 注解开启 -->
    
    <context:component-scan base-package="com.testForSSM"></context:component-scan>
    <!--<context:component-scan base-package="com.testForSSM" use-default-filters="false">-->
        <!--<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>-->
        <!--<context:exclude-filter type="annotation"-->
                                <!--expression="org.springframework.web.bind.annotation.ControllerAdvice"/>-->
    <!--</context:component-scan>-->

    <!--配置自动扫描 @Aspect 标签-->
    <aop:aspectj-autoproxy/>

    <!-- aop 开启 -->
    <aop:aspectj-autoproxy proxy-target-class="true"/>

<import resource="spring-mybatis-res.xml"></import>
    <!--<bean id="testHello" class="com.testForSSM.TestForAOPImpl"/>-->
    <!--<bean id="testAOP" class="com.testForSSM.TestForAOPAspect"/>-->
</beans>
spring-mybatis-res.xml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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="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/aop
              http://www.springframework.org/schema/aop/spring-aop.xsd
              http://www.springframework.org/schema/tx
              http://www.springframework.org/schema/tx/spring-tx.xsd">

    <context:property-placeholder location="classpath:jdbc.properties" ignore-unresolvable="true"/>

    <!-- 配置数据源 资源库 -->
    <bean id="dataSourceTestOfMine" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <!-- 基本属性 url、user、password -->
        <property name="url" value="${sysadmin.url}"/>
        <property name="username" value="${sysadmin.username}"/>
        <property name="password" value="${sysadmin.password}"/>

        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="1"/>
        <property name="minIdle" value="1"/>
        <property name="maxActive" value="200"/>

        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="60000"/>

        <!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000"/>

        <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="300000"/>

        <property name="validationQuery" value="SELECT 'x'"/>
        <property name="testWhileIdle" value="true"/>
        <property name="testOnBorrow" value="false"/>
        <property name="testOnReturn" value="false"/>

        <!-- 打开PSCache,并且指定每个连接上PSCache的大小 -->
        <property name="poolPreparedStatements" value="true"/>
        <property name="maxPoolPreparedStatementPerConnectionSize" value="20"/>

        <!-- 配置监控统计拦截的filters -->
        <property name="filters" value="stat"/>
    </bean>

    <!-- 配置myBatis sqlSeesionFactory -->
    <!--扫描XML文件的配置-->
    <bean id="sqlSessionFactoryTestOfMine" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSourceTestOfMine"/>
        <property name="mapperLocations" value="classpath*:com/testForSSM/mapper/UserMapper.xml"/>
        <property name="configLocation" value="classpath:MyBatisConfig.xml"/>
        <!--<property name="typeAliasesPackage" value="com.testForSSM.entity"/>-->
    </bean>

    <!-- 自动扫描配置,即mapper包下的所有接口都会通过SqlSessionFactory代理,不需要再手工去实现DAO接口 -->
    <!-- 扫描接口的配置文件 -->
    <bean id="mapperInterfaceTestOfMine" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.testForSSM.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryTestOfMine"/>
    </bean>

    <!-- 事务 -->
    <bean id="transactionManagerTestOfMine" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSourceTestOfMine">
        </property>
    </bean>

    <!--事务属性-->
    <tx:advice id="txAdviceTestOfMine" transaction-manager="transactionManagerTestOfMine">
        <tx:attributes>
            <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="count*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="find*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="has*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="locate*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="list*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED" rollback-for="Exception"/>
        </tx:attributes>
    </tx:advice>

    <!--Aop管理事务-->
    <aop:config proxy-target-class="true">
        <aop:advisor pointcut="execution(* *com.testForSSM.dao.*.*(..))" advice-ref="txAdviceTestOfMine"/>
    </aop:config>


</beans>
ApplicationContext-servlet.xml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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"
       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-3.0.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
    <context:component-scan base-package="com.testForSSM" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!--添加default的servlet解析-->
    <mvc:annotation-driven/>


</beans>

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