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>