4).Spring + SpringMVC + Mybatis整合开发
环境搭建
1) 导入jar
spring的jar、日志的jar、mybatis的jar、mybatis-spring的jar、oracle的jar、连接池的jar、aop的依赖(asm cglib aspectj)
2) 导入配置文件
web.xml
mvc.xml [开启注解开发mvc、注解管理Controller] ---小spring工厂
applicationContext.xml[管理连接池、事务相关、mybatis相关、开启注解管理service] ---大spring工厂
自定义的application.properties
注意：springmvc的小spring工厂，能够使用到spring的大工厂中的对象
3) 初始化配置
①web.xml：
springmvc核心控制器
指定mvc配置文件的路径
编码设置的filter
spring工厂初始化的监听器
spring配置文件初始化
代码：
<!-- springMVC核心控制器 -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定springMVC配置文件路径 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/mvc.xml</param-value>
</init-param>
<!-- 设置在tomcat启动创建控制器 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<!-- 指定所有的springMVC控制器访问以.do结尾 -->
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- 编码设置，spring自带的过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<!-- 设置请求编码格式 -->
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<!-- 开启响应设置编码 -->
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<!-- spring工厂初始化监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 标明加载spring工厂的配置文件路径 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/applicationContext.xml</param-value>
</context-param>
②mvc.xml
注解管理controller
注解开发mvc
代码：
<!-- 1. 开启注解管理Controller对象 IOC注解：只能扫描Controller -->
<context:component-scan base-package="com.jwnming.controller"></context:component-scan>
<!-- 2. 开启注解开发mvc(映射访问路径) MVC注解 -->
<mvc:annotation-driven/>
③applicationContext.xml
引入外部properties配置文件
开启注解管理service[除了controller以外的对象]
连接池
事务相关[事务管理器、事务增强、aop]
mybatis相关配置[SqlSessionFactoryBean、MapperScannerConfigurer]
代码：
<!-- 引入properties配置文件 -->
<context:property-placeholder location="classpath:application.properties"/>
<!-- 开启注解：service+test -->
<context:component-scan base-package="com.baizhi.service"></context:component-scan>
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~1.连接池~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="ds" class="com.alibaba.druid.pool.DruidDataSource">
<!—配置的值在application.properties文件中 -->
<property name="driverClassName" value="${database.driverClassName}"></property>
<property name="url" value="${database.url}"></property>
<property name="username" value="${database.username}"></property>
<property name="password" value="${database.password}"></property>
<property name="initialSize" value="${database.initialSize}"></property>
<property name="maxActive" value="${database.maxActive}"></property>
<property name="maxWait" value="${database.maxWait}"></property>
</bean>
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~事务相关~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="ds"></property>
</bean>
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="login" read-only="true" propagation="SUPPORTS"/>
<tx:method name="regist" propagation="REQUIRED"/>
<tx:method name="get*" read-only="true" propagation="SUPPORTS"/>
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut expression="execution(* com.baizhi.service.impl.*.*(..))" id="pc"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="pc"/>
</aop:config>
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~mybatis相关~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="sf" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 连接池 -->
<property name="dataSource" ref="ds"></property>
<!-- maspper文件注册路径 -->
<property name="mapperLocations" value="${mybatis.mapperLocations}"></property>
<!-- 别名 -->
<property name="typeAliasesPackage" value="${mybatis.typeAliasesPackage}"></property>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 指定需要的sqlSessionfactory -->
<property name="sqlSessionFactoryBeanName" value="sf"></property>
<!-- 指定dao接口所在的包 -->
<property name="basePackage" value="com.baizhi.dao"></property>
</bean>