Springmvc+spring+mybatisの統合(初心者におすすめ)

以下、統合を開始します(少し多いので一つ一つ紹介しません)
sqlMapConfigを構成する.xml(空のファイルでOK)

version="1.0" encoding="UTF-8" ?>
br>"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
​
configuration>

applicationContext-dao.xml

version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
 xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
 http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
​
 
 <context:property-placeholder location="classpath:jdbc.properties" />
​
 
 <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}" />
 bean>
​
 
 <bean class="org.mybatis.spring.SqlSessionFactoryBean">
  
  <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" />
  
  <property name="dataSource" ref="dataSource" />
 bean>
​
 
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  
  <property name="basePackage" value="cn.chuang.mapper" />
 bean>
beans>
​

jdbc.properties(データベース情報の構成)

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/   ?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

log4j.properties(構成ログ情報)

# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

applicationContext-service.xml

version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
 xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
 http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
​
 
 <context:component-scan base-package="cn.chuang.service" />
beans>
​

applicationContext-trans.xml(トランザクション管理の構成)

version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
 xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
 http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
​
 
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  
  <property name="dataSource" ref="dataSource" />
 bean>
​
 
 <tx:advice id="txAdvice" transaction-manager="transactionManager">
  <tx:attributes>
   
   <tx:method name="save*" propagation="REQUIRED" />
   <tx:method name="insert*" propagation="REQUIRED" />
   <tx:method name="add*" propagation="REQUIRED" />
   <tx:method name="create*" propagation="REQUIRED" />
   <tx:method name="delete*" propagation="REQUIRED" />
   <tx:method name="update*" propagation="REQUIRED" />
   <tx:method name="find*" propagation="SUPPORTS" read-only="true" />
   <tx:method name="select*" propagation="SUPPORTS" read-only="true" />
   <tx:method name="get*" propagation="SUPPORTS" read-only="true" />
   <tx:method name="query*" propagation="SUPPORTS" read-only="true" />
  tx:attributes>
 tx:advice>
​
 
 <aop:config>
  <aop:advisor advice-ref="txAdvice"