SpringMVC整合M

最新推荐文章于 2025-01-08 20:06:48 发布

肉man

最新推荐文章于 2025-01-08 20:06:48 发布

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分类专栏：框架文章标签： SpringMVC

肉man

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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。

jar包

包括：spring（包括springmvc）、mybatis、mybatis-spring整合包、数据库驱动、第三方连接池。

参考：“mybatis与springmvc整合全部jar包”目录

Dao
目标：
1、spring管理SqlSessionFactory、mapper

详细参考mybatis教程与spring整合章节。

sqlMapConfig.xml

在classpath下创建mybatis/sqlMapConfig.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>
 
<!—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>
<package name="cn.itcast.ssm.mapper" />
</mappers>
</configuration>

applicationContext-dao.xml

配置数据源、事务管理，配置SqlSessionFactory、mapper扫描器。
 
<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"
    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-placeholder location="classpath:db.properties"/>
<!-- 数据库连接池 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
       <property name="driverClassName" value="${jdbc.driver}"/>
       <property name="url" value="${jdbc.url}"/>
       <property name="username" value="${jdbc.username}"/>
       <property name="password" value="${jdbc.password}"/>
       <property name="maxActive" value="30"/>
       <property name="maxIdle" value="5"/>
</bean>
 
 
<!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
       <!-- 数据库连接池 -->
       <property name="dataSource" ref="dataSource" />
       <!-- 加载mybatis的全局配置文件 -->
       <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" />
    </bean>
<!-- mapper扫描器 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
 <property name="basePackage" value="cn.itcast.springmvc.mapper"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
 
</beans>
 
 
ItemsMapper.xml
 
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.itcast.ssm.mapper.ItemsMapper">
   
    <!-- sql片段 -->
    <!-- 商品查询条件 -->
    <sql id="query_items_where">
       <if test="items!=null">
           <if test="items.name!=null and items.name!=''">
              and items.name like '%${items.name}%'
           </if>
       </if>
    </sql>
       
    <!-- 查询商品信息 -->
    <select id="findItemsList" parameterType="queryVo" resultType="items">
       select * from items
       <where>
           <include refid="query_items_where"/>
       </where>
    </select>
   
 
</mapper>
 
 ItemsMapper.java
 
public interface ItemsMapper {
    //商品列表
    public List<Items> findItemsList(QueryVo queryVo) throws Exception;
}

Service
目标：
1、Service由spring管理
2、spring对Service进行事务控制。

applicationContext-service.xml
配置service接口。

applicationContext-transaction.xml
配置事务管理器。

<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"
    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 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <!-- 数据源 -->
    <property name="dataSource" ref="dataSource"/>
</bean>
 
 
<
!-- 通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
  <tx:attributes>
     <!-- 传播行为 -->
    <tx:method name="save*" propagation="REQUIRED"/>
    <tx:method name="insert*" propagation="REQUIRED"/>
    <tx:method name="delete*" propagation="REQUIRED"/>
    <tx:method name="update*" propagation="REQUIRED"/>
    <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
    <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
  </tx:attributes>
</tx:advice>

aop:config
<aop:advisor advice-ref=“txAdvice”
pointcut=“execution(* cn.itcast.springmvc.service.impl..(…))”/>
</aop:config>

OrderService

public interface OrderService {

//商品查询列表
public List<Items> findItemsList(QueryVo queryVo)throws Exception;

}

@Autowired
private ItemsMapper itemsMapper;

@Override
public List<Items> findItemsList(QueryVo queryVo) throws Exception {
   //查询商品信息
   return itemsMapper.findItemsList(queryVo);
}

}

Action

springmvc.xml

<!-- 扫描controller注解,多个包中间使用半角逗号分隔 -->
<context:component-scan base-package="cn.itcast.ssm.controller"/>

<!--注解映射器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<!--注解适配器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>

<!-- ViewResolver -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
   <property name="viewClass"
       value="org.springframework.web.servlet.view.JstlView" />
   <property name="prefix" value="/WEB-INF/jsp/" />
   <property name="suffix" value=".jsp" />
</bean>

web.xml

加载spring容器，配置springmvc前置控制器。

<?xml version="1.0" encoding="UTF-8"?>

springmvc

<!-- 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>

OrderController

@Controller
public class OrderController {

@Autowired
private OrderService orderService;

@RequestMapping("/queryItem.action")
public ModelAndView queryItem() throws Exception {
   // 商品列表
   List<Items> itemsList = orderService.findItemsList(null);

   // 创建modelAndView准备填充数据、设置视图
   ModelAndView modelAndView = new ModelAndView();

   // 填充数据
   modelAndView.addObject("itemsList", itemsList);
   // 视图
   modelAndView.setViewName("order/itemsList");

   return modelAndView;
}

}