数据源配置文件（jdbc.properties）
jdbc.driverClassName=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql:///mybatisjdbc.username=rootjdbc.password=123456
Spring配置文件（applicationContext.xml）
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!--1.jdbc-properties 2.dataSource 3.SqlSessionFactory 4.mapper映射器--> <!--扫描service层--> <context:component-scan base-package="cn.itsource.ssm.service"/> <!--引入jdbc.properties配置文件--> <context:property-placeholder location="classpath:jdbc.properties"/> <!--配置数据源，连接池--> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> <!--配置SQLSessionFactory--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--引入数据源--> <property name="dataSource" ref="dataSource"/> <!--为domain取别名--> <property name="typeAliasesPackage" value="cn.itsource.ssm.domain,cn.itsource.ssm.query"/> <!--找我们的映射文件--> <property name="mapperLocations" value="classpath:cn/itsource/ssm/mapper/*.xml"/> </bean> <!--配置注入映射器--> <!--一劳永益的方法--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cn.itsource.ssm.mapper"/> </bean> <!--配置事务--> <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!--注解支持--> <tx:annotation-driven/></beans>springmvc配置文件（ApplicationContext-mvc.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: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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--扫描controller层--> <context:component-scan base-package="cn.itsource.ssm.web.controller"/> <!--静态资源放行--> <mvc:default-servlet-handler/> <!--支持注解--> <mvc:annotation-driven/> <!--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></beans>WEB.xml配置文件
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <!--核心控制器--> <servlet> <servlet-name>dispatchServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--读取SpringMVC的配置文件--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:ApplicationContext-mvc.xml</param-value> </init-param> <!--Tomcat启动就启动--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatchServlet</servlet-name> <!--符合RESTful风格--> <url-pattern>/</url-pattern> </servlet-mapping> <!--Spring监听器(读取核心文件)--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:ApplicationContext.xml</param-value> </context-param> <!--POST请求的中文编码过滤器--> <!-- 字符集 过滤器 --> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping></web-app>项目结构图
注意在创建resources文件夹下面创建文件夹时不能用cn.itsource.ssm.mapper,要用cn/itsource/ssm/mapper