mybatis-基本配置

基于maven 管理的工程

1..加入以下jar包

<dependency>
	<groupId>org.mybatis</groupId>
	<artifactId>mybatis</artifactId>
</dependency>
<dependency>
	<groupId>org.mybatis</groupId>
	<artifactId>mybatis-spring</artifactId></dependency>

2.导入数据库连接jar包
<pre name="code" class="html"><dependency>
<span style="white-space:pre">	</span><groupId>mysql</groupId>
<span style="white-space:pre">	</span><artifactId>mysql-connector-java</artifactId>
</dependency>

3.配置文件mybatis.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:mvc="http://www.springframework.org/schema/mvc" 
    xsi:schemaLocation=" http://www.springframework.org/schema/beans    
                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd   
                        http://www.springframework.org/schema/context   
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd   
                        http://www.springframework.org/schema/mvc   
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> 
    <!-- 自动扫描 --> 
    <context:component-scan base-package= "项目的包名" /> 
    <!-- 引入配置文件 --> 
    <bean id="propertyConfigurer" 
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" > 
        <property name= "location" value="数据库配置文件所在路径" /> 
    </bean > 
 <!--数据库配置-->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  
        destroy-method="close" > 
        <property name= "driverClassName" value="${driver}" /> 
        <property name= "url" value ="${url}" /> 
        <property name= "username" value ="${username}" /> 
        <property name= "password" value ="${password}" /> 
        <!-- 初始化连接大小 -->  
        <property name= "initialSize" value="${initialSize}" ></property>  
        <!-- 连接池最大数量 -->  
        <property name= "maxActive" value="${maxActive}" ></property>  
        <!-- 连接池最大空闲 -->  
        <property name= "maxIdle" value="${maxIdle}" ></property>  
        <!-- 连接池最小空闲 -->  
        <property name= "minIdle" value="${minIdle}" ></property>  
        <!-- 获取连接最大等待时间 -->  
   <property name="maxWait" value="${maxWait}"></property>  
    </bean > 
 
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" > 
        <property name= "dataSource" ref ="dataSource" /> 
        <!-- 自动扫描mapping.xml文件 -->  
        <property name= "mapperLocations" value="mapper.xml文件存放路径" ></property>  
    </bean > 
 
    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->  
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer" > 
        <property name= "basePackage" value="dao层接口所在位置" /> 
        <property name= "sqlSessionFactoryBeanName" value="sqlSessionFactory" ></property>  
 </bean>
</beans>  

4.将mybatis.xml配置文件配置到web.xml中即可

至此：mybatis的基本配置就完成了