spring和mybatis整合方式一

需要的jar包：传送门（需要花点积分哦）

第一种方式：重点在于mybatis的注释映射， SpringMVC的配置和注释映射，spring整合mybatis的配置

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_3_1.xsd" version="3.1">
<!--Spring核心监听器,默认会以/WEB-INF/applicationContext.xml作为配置文件-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--contextConfigLocation 用来指定Spring 的配置文件-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>

<!--配置springmvc的前端控制器-->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!--让spring mvc的前端控制器拦截所有的请求-->
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!--编码过滤器-->
<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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

spring-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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
<!--自动扫描，SpringMvc将包下用了@Controller注解的类注册为Spring的Controller-->
<context:component-scan base-package="com.cn.controller"/>
<!--配置默认配置方案-->
<mvc:annotation-driven />
<bean id ="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>

application.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
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"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd ">
<!--mybatis:scan会扫描com.cn.mapper 包里面的所有接口当做mapper配置，之后可以自动引入mapper类-->
<mybatis:scan base-package="com.cn.mapper"/>
<!--扫描 com.cn.controller包下面的所有的java文件，有spring注解的类，则把这些类注册为spring的bean-->
<context:component-scan base-package="com.cn.service"/>
<!--使用propertyOverrideConfigurer后处理器加载数据源参数-->
<context:property-override location="classpath:db.properties"/>
<!--配置c3p0数据源-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"/>

<!--配置SqlSessionFactory,org.mybatis.spring.SqlsessionFactory是Mybatis社区开发用于整合Spring的bean-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" p:dataSource-ref="dataSource"/>
<!--JDBC事物管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" p:dataSource-ref="dataSource"/>
<!--启动支持annotation注解方式事物管理-->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>