主要介绍mapper配置与mapper的扫描配置，使用dao层的配置这里不多说。
1.导包
1.1 Mybatis的jar包
1.2 Spring的jar包
1.3 Spring与Mybatis整合包
1.4 数据库驱动包
1.5 连接池的jar包
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2.配置Mybatis核心配置（SqlMapConfig.xml）
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE configuration 3 PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-config.dtd"> 5 <configuration> 6 <!-- 设置别名 --> 7 <typeAliases> 8 <!-- 指定扫描包，会把包内所有的类都设置别名，别名的名称就是类名，大小写不敏感 --> 9 <package name="com.mybatis.pojo" /> 10 </typeAliases> 11 <!-- 加载mapper文件 --> 12 <mappers> 13 <!-- 采用加载包的形式 --> 14 <package name="com.mybatis.mapper"/> 15 </mappers> 16 </configuration>
该文件主要用于注册加载mapper文件。
3.log4j.propertis和db.properties文件
1 # Global logging configuration 2 log4j.rootLogger=DEBUG, stdout 3 # Console output... 4 log4j.appender.stdout=org.apache.log4j.ConsoleAppender 5 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 6 log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf-8 jdbc.username=root jdbc.password=asdf123456789
4.applicationContext.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:context="http://www.springframework.org/schema/context" 4 xmlns:p="http://www.springframework.org/schema/p" 5 xmlns:aop="http://www.springframework.org/schema/aop" 6 xmlns:tx="http://www.springframework.org/schema/tx" 7 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 8 xsi:schemaLocation=" 9 http://www.springframework.org/schema/beans 10 http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 11 http://www.springframework.org/schema/context 12 http://www.springframework.org/schema/context/spring-context-4.0.xsd 13 http://www.springframework.org/schema/aop 14 http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 15 http://www.springframework.org/schema/tx 16 http://www.springframework.org/schema/tx/spring-tx-4.0.xsd 17 http://www.springframework.org/schema/util 18 http://www.springframework.org/schema/util/spring-util-4.0.xsd"> 19 20 <!-- 加载配置文件 --> 21 <context:property-placeholder location="classpath:db.properties" /> 22 23 <!-- 数据库连接池 --> 24 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 25 destroy-method="close"> 26 <property name="driverClassName" value="${jdbc.driver}" /> 27 <property name="url" value="${jdbc.url}" /> 28 <property name="username" value="${jdbc.username}" /> 29 <property name="password" value="${jdbc.password}" /> 30 <property name="maxActive" value="10" /> 31 <property name="maxIdle" value="5" /> 32 </bean> 33 34 <!-- 配置SqlSessionFactory --> 35 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 36 <!-- 配置mybatis核心配置文件 --> 37 <property name="configLocation" value="classpath:SqlMapConfig.xml" /> 38 <!-- 配置数据源 --> 39 <property name="dataSource" ref="dataSource" /> 40 </bean> 41 <!-- 42 <bean id="UserDao" class="com.mybatis.dao.impl.UserDaoImpl"> 43 <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> 44 </bean> 45 --> 46 <!-- 47 mapper方式： 48 配置对应的mapper工厂，设置sqlSession工厂与mapper接口 49 50 <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"> 51 <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> 52 <property name="mapperInterface" value="com.mybatis.mapper.UserMapper"></property> 53 </bean> 54 --> 55 <!-- 配置mapper扫描设置 --> 56 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 57 <!-- 只需要设置基本包路径 --> 58 <property name="basePackage" value="com.mybatis.mapper"></property> 59 </bean> 60 61 </beans>