1.需要的文件
applicationContext.xml，springMvc.xml，web.xml，mybatis-config.xml，db.properties
2.开始配置
2.1编写db.properties
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm_demo
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=root
2.2配置mybatis-config.xml
<?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>
<settings>
<!--命名规则：驼峰-->
<setting name="mapUnderscoreToCamelCase" value="true"/>
</settings>
<typeAliases>
<!--别名-->
<package name="com.demo.domain"/>
</typeAliases>
</configuration>
2.3编写applicationContext.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/cache
http://www.springframework.org/schema/cache/spring-cache.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd">
<!-- 加载数据库连接文件 -->
<context:property-placeholder location="classpath:properties/db.properties"></context:property-placeholder>
<bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
<!-- spring整合mybatis -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 指定mybatis全局配置文件的位置-->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
<property name="dataSource" ref="pooledDataSource"></property>
<!-- 指定mybatis，mapper文件的位置-->
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
</bean>
<!-- 扫描dao -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 扫描所有的dao接口的实现，加入到ioc容器中-->
<property name="basePackage" value="com.demo.dao"></property>
</bean>
<!-- 配置事务 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 控制数据源 -->
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 另一种是基于 @Transactional 注解的方式 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
2.4编写springMvc.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 -->
<context:component-scan base-package="com.demo" />
<!-- 配置视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/pages"></property>
<!--后缀-->
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 开启springmvc注解支持 -->
<mvc:annotation-driven></mvc:annotation-driven>
<!--过滤静态资源-->
<mvc:default-servlet-handler></mvc:default-servlet-handler>
</beans>
2.5编写web.xml
<?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">
<!--指定applicationContext.xml的位置-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定springMvc.xml的位置 -->
<!--
init-param
设置 springmvc 配置文件位置以及名称，springmvc配置文件不设置默认位置是：webapp，
可以使用 classpath 设置文件的名称为：spring-mvc.xml ，代表 springmvc 配置文件名必须为 spring-mvc.xml，
如不使用 classpath 设置其路径及名称，默认在 webapp下，名称为：\标签中的值 + "-servlet.xml"，例如：如 标签中值为：springmvc，则默认的 springmvc 配置文件名为：springmvc-servlet.xml
-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springMvc.xml</param-value>
</init-param>
<!--
设置 servlet加载时间，如不设置默认在第一次请求访问时加载 servlet，
若设置此标签值为正整数，会将 servlet 的加载时间提前到项目启动时，
此标签中可以写整数，但写负整数和0和没有设置是一样的效果，只有设置为正整数才会将 servlet 的加载时间提前到项目启动时，也就是 tomcat 启动时，
值越小，代表优先级越高。
-->
<!--<load-on-startup>2</load-on-startup>-->
</servlet>
<!-- 代表拦截所有请求 -->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>