springmvc经典教程（2）
springmvc教程系列
springmvc史上最好教程（2）
springmvc史上最好教程（1）
springmvc史上最好教程（3）
springmvc史上最好教程（4）
为了更好的学习 springmvc和mybatis整合开发的方法，需要将springmvc和mybatis进行整合。
整合目标：控制层采用springmvc、持久层使用mybatis实现。
1.1需求实现商品查询列表，从MySQL数据库查询商品信息。
1.2jar包包括：spring（包括springmvc）、mybatis、mybatis-spring整合包、数据库驱动、第三方连接池。
1.3Dao目标：
1、spring管理SqlSessionFactory、mapper
1.3.1sqlMapConfig.xml在classpath下创建mybatis/sqlMapConfig.xml
<?xmlversion="1.0"encoding="UTF-8"?>
<!DOCTYPEconfiguration
PUBLIC"-//mybatis.org//DTDConfig3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!—使用自动扫描器时，mapper.xml文件如果和mapper.java接口在一个目录则此处不用定义mappers-->
<mappers>
<packagename="com.sihai.ssm.mapper"/>
</mappers>
</configuration>
配置数据源、事务管理，配置SqlSessionFactory、mapper扫描器。
<beansxmlns="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"
xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!--加载配置文件-->
<context:property-placeholderlocation="classpath:db.properties"/>
<!--数据库连接池-->
<beanid="dataSource"class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close">
<propertyname="driverClassName"value="${jdbc.driver}"/>
<propertyname="url"value="${jdbc.url}"/>
<propertyname="username"value="${jdbc.username}"/>
<propertyname="password"value="${jdbc.password}"/>
<propertyname="maxActive"value="30"/>
<propertyname="maxIdle"value="5"/>
</bean>
<!--让spring管理sqlsessionfactory使用mybatis和spring整合包中的-->
<beanid="sqlSessionFactory"class="org.mybatis.spring.SqlSessionFactoryBean">
<!--数据库连接池-->
<propertyname="dataSource"ref="dataSource"/>
<!--加载mybatis的全局配置文件-->
<propertyname="configLocation"value="classpath:mybatis/SqlMapConfig.xml"/>
</bean>
<!--mapper扫描器-->
<beanclass="org.mybatis.spring.mapper.MapperScannerConfigurer">
<propertyname="basePackage"value="com.sihai.springmvc.mapper"></property>
<propertyname="sqlSessionFactoryBeanName"value="sqlSessionFactory"/>
</bean>
</beans>
<?xmlversion="1.0"encoding="UTF-8"?>
<!DOCTYPEmapper
PUBLIC"-//mybatis.org//DTDMapper3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mappernamespace="com.sihai.ssm.mapper.ItemsMapper">
<!--sql片段-->
<!--商品查询条件-->
<sqlid="query_items_where">
<iftest="items!=null">
<iftest="items.name!=nullanditems.name!=''">
anditems.namelike'%${items.name}%'
</if>
</if>
</sql>
<!--查询商品信息-->
<selectid="findItemsList"parameterType="queryVo"resultType="items">
select*fromitems
<where>
<includerefid="query_items_where"/>
</where>
</select>
</mapper>
publicinterfaceItemsMapper{
//商品列表
publicList<Items>findItemsList(QueryVoqueryVo)throwsException;
}
目标：
1、Service由spring管理
2、spring对Service进行事务控制。
1.4.1applicationContext-service.xml配置service接口。
1.4.2applicationContext-transaction.xml配置事务管理器。
<beansxmlns="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"
xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!--事务管理器-->
<beanid="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--数据源-->
<propertyname="dataSource"ref="dataSource"/>
</bean>
<!--通知-->
<tx:adviceid="txAdvice"transaction-manager="transactionManager">
<tx:attributes>
<!--传播行为-->
<tx:methodname="save*"propagation="REQUIRED"/>
<tx:methodname="insert*"propagation="REQUIRED"/>
<tx:methodname="delete*"propagation="REQUIRED"/>
<tx:methodname="update*"propagation="REQUIRED"/>
<tx:methodname="find*"propagation="SUPPORTS"read-only="true"/>
<tx:methodname="get*"propagation="SUPPORTS"read-only="true"/>
</tx:attributes>
</tx:advice>
<!--切面-->
<aop:config>
<aop:advisoradvice-ref="txAdvice"
pointcut="execution(*com.sihai.springmvc.service.impl.*.*(..))"/>
</aop:config>
</beans>
publicinterfaceOrderService{
//商品查询列表
publicList<Items>findItemsList(QueryVoqueryVo)throwsException;
}
@Autowired
privateItemsMapperitemsMapper;
@Override
publicList<Items>findItemsList(QueryVoqueryVo)throwsException{
//查询商品信息
returnitemsMapper.findItemsList(queryVo);
}
}
1.5.1springmvc.xml
<beansxmlns="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"
xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!--扫描controller注解,多个包中间使用半角逗号分隔-->
<context:component-scanbase-package="com.sihai.ssm.controller"/>
<!--注解映射器-->
<beanclass="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<!--注解适配器-->
<beanclass="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
<!--ViewResolver-->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<propertyname="viewClass"
value="org.springframework.web.servlet.view.JstlView"/>
<propertyname="prefix"value="/WEB-INF/jsp/"/>
<propertyname="suffix"value=".jsp"/>
</bean>
</beans>
加载spring容器，配置springmvc前置控制器。
<?xmlversion="1.0"encoding="UTF-8"?>
<web-appxmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID"version="2.5">
<display-name>springmvc</display-name>
<!--加载spring容器-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/spring/applicationContext.xml,/WEB-INF/classes/spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--解决post乱码-->
<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>
<!--springmvc的前端控制器-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--contextConfigLocation不是必须的，如果不配置contextConfigLocation，springmvc的配置文件默认在：WEB-INF/servlet的name+"-servlet.xml"-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
1.5.3OrderController@Controller
publicclassOrderController{
@Autowired
privateOrderServiceorderService;
@RequestMapping("/queryItem.action")
publicModelAndViewqueryItem()throwsException{
//商品列表
List<Items>itemsList=orderService.findItemsList(null);
//创建modelAndView准备填充数据、设置视图
ModelAndViewmodelAndView=newModelAndView();
//填充数据
modelAndView.addObject("itemsList",itemsList);
//视图
modelAndView.setViewName("order/itemsList");
returnmodelAndView;
}
}
1.6测试http://localhost:8080/springmvc_mybatis/queryItem.action
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