mybatis和spring整合配置

采用传统实现类的方式

SqlMapConfig.xml配置如下

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

   <!-- 别名可以在spring容器中配置
　　 <typeAliases >
        　 单个别名定义 使用,不区分大小写 
        <typeAlias type="com.zuikc.mybatis.pojo.User" alias="user"/>
      　　 别名包扫描器,别名是类的全称,不区分大小写 ,推荐方式
        <package name="com.zuikc.mybatis.pojo"/>
    </typeAliases> -->

    <mappers>
        <mapper resource="mybatis/user.xml"/>
    </mappers>
    
</configuration>

 applicationContext.xml配置如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:p="http://www.springframework.org/schema/p"
    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: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">

   <!-- 加载配置文件 -->
   <context:property-placeholder location="classpath:jdbc.properties" />

    <!-- 数据库连接池 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <!-- 连接池的最大数据库连接数 -->
        <property name="maxActive" value="10" />
        <!-- 最大空闲数 -->
        <property name="maxIdle" value="5" />
    </bean>
    
    <!-- SqlSessionFactory配置 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 加载mybatis核心配置文件 -->
        <property name="configLocation" value="classpath:SqlMapConfig.xml" />
        <!-- 别名包扫描 -->
        <property name="typeAliasesPackage" value="com.zuikc.mybatis.pojo" />
    </bean>
    
    <!-- 传统Dao配置 -->
    <bean id="userDao" class="com.zuikc.mybatis.dao.impl.UserDaoImpl">
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
    </bean>
</beans>

采用动态代理方式

如果接口和映射文件名称相同在同一包下,SqlMapConfig不用配置.否则,SqlMapConfig.xml需要配置

                                        <mappers>
                                             <mapper resource="mybatis/UserMapper.xml"/>
                                         </mappers>

 applicationContext.xml配置如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:p="http://www.springframework.org/schema/p"
    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: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">

   <!-- 加载外部配置文件 -->
   <context:property-placeholder location="classpath:jdbc.properties" />

    <!-- 数据库连接池 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <!-- 连接池的最大数据库连接数 -->
        <property name="maxActive" value="10" />
        <!-- 最大空闲数 -->
        <property name="maxIdle" value="5" />
    </bean>
    
    <!-- SqlSessionFactory配置 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 加载mybatis核心配置文件 -->
        <property name="configLocation" value="classpath:SqlMapConfig.xml" />
        <!-- 别名包扫描 -->
        <property name="typeAliasesPackage" value="com.zuikc.mybatis.pojo" />
    </bean>
    
     <!-- 动态代理配置方式:第一种 
     <bean id="baseMapper" class="org.mybatis.spring.mapper.MapperFactoryBean" abstract="true" lazy-init="true">
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
     </bean> 
          配置一个接口 
     <bean parent="baseMapper">
         <property name="mapperInterface" value="com.zuikc.mybatis.mapper.UserMapper" />
     </bean> -->
    
    <!-- 动态代理，第二种方式：包扫描（推荐）： -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
       
        <property name="basePackage" value="com.zuikc.mybatis.mapper" />
        
        <!-- basePackage多个包用","分隔
         <property name="basePackage" value="com.zuikc.ssm.mapper" /> -->

        <!-- 没有必要去指定sqlSessionFactory或sqlSessionTemplate,因为MapperScannerConfigurer将会
             创建MapperFactoryBean,之后自动装配.但是如果使用了多个datasource,那么自动装配可能会失效.这种情况下可以用

             sqlSessionFactoryBeanName或sqlSessionTemplateBeanName属性设置

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

     </bean> 
</beans>