1 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

2 整合思路

Dao层：

1、SqlMapConfig.xml，空文件即可。需要文件头。

2、applicationContext-dao.xml。

a) 数据库连接池

b) SqlSessionFactory对象，需要spring和mybatis整合包下的。

c) 配置mapper文件扫描器。

Service层：

1、applicationContext-service.xml包扫描器，扫描@service注解的类。

2、applicationContext-trans.xml配置事务。

表现层：

Springmvc.xml

1、包扫描器，扫描@Controller注解的类。

2、配置注解驱动。

3、视图解析器

Web.xml

配置前端控制器。

2.1 sqlMapConfig.xml

在classpath下创建mybatis/sqlMapConfig.xml

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE configuration
  3. PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  4. "http://mybatis.org/dtd/mybatis-3-config.dtd">
  5. <configuration>
  7. </configuration>

2.2 applicationContext-dao.xml

配置数据源、配置SqlSessionFactory、mapper扫描器。

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.     xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
  4.     xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  5.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  6.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
  7.     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
  8.     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
  9.     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
  11.     <!-- 加载配置文件 -->
  12.     <context:property-placeholder location="classpath:jdbc.properties" />
  13.     <!-- 数据库连接池 -->
  14.     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
  15.         destroy-method="close">
  16.         <property name="driverClassName" value="${jdbc.driver}" />
  17.         <property name="url" value="${jdbc.url}" />
  18.         <property name="username" value="${jdbc.username}" />
  19.         <property name="password" value="${jdbc.password}" />
  20.         <property name="maxActive" value="10" />
  21.         <property name="maxIdle" value="5" />
  22.     </bean>
  24.     <!-- mapper配置 -->
  25.     <!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->
  26.     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  27.         <!-- 数据库连接池 -->
  28.         <property name="dataSource" ref="dataSource" />
  29.         <!-- 加载mybatis的全局配置文件 -->
  30.         <property name="configLocation" value="classpath:SqlMapConfig.xml" />
  31.     </bean>
  33.     <!-- 配置Mapper扫描器 -->
  34.     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  35.         <property name="basePackage" value="com.carven.dao"/>
  36.     </bean>
  38. </beans>

jdbc.properties

  1. jdbc.driver=com.mysql.jdbc.Driver
  2. jdbc.url=jdbc:mysql://localhost:3306/springmvc?characterEncoding=utf-8
  3. jdbc.username=root
  4. jdbc.password=123456

2.3 applicationContext-service.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.     xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
  4.     xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  5.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  6.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
  7.     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
  8.     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
  9. http://www.springframework.org/schema/tx 
  10. http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
  11.     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
  13.     <!-- @Service扫描 -->
  14.     <context:component-scan base-package="com.carven.service"></context:component-scan>
  15. </beans>

2.4 applicationContext-transaction.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.     xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
  4.     xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  5.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  6.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
  7.     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
  8.     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
  9. http://www.springframework.org/schema/tx 
  10. http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
  11.     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
  13.     <!-- 事务管理器 -->
  14.     <bean id="transactionManager"
  15.         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  16.         <!-- 数据源 -->
  17.         <property name="dataSource" ref="dataSource" />
  18.     </bean>
  20.     <!-- 通知 -->
  21.     <tx:advice id="txAdvice" transaction-manager="transactionManager">
  22.         <tx:attributes>
  23.             <!-- 传播行为 -->
  24.             <tx:method name="save*" propagation="REQUIRED" />
  25.             <tx:method name="insert*" propagation="REQUIRED" />
  26.             <tx:method name="delete*" propagation="REQUIRED" />
  27.             <tx:method name="update*" propagation="REQUIRED" />
  28.             <tx:method name="find*" propagation="SUPPORTS" read-only="true" />
  29.             <tx:method name="get*" propagation="SUPPORTS" read-only="true" />
  30.         </tx:attributes>
  31.     </tx:advice>
  33.     <!-- 切面 -->
  34.     <aop:config>
  35.         <aop:advisor advice-ref="txAdvice"
  36.             pointcut="execution(* com.carven.service.*.*(..))" />
  37.     </aop:config>
  39. </beans>

2.5 springmvc.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
  4.     xmlns:context="http://www.springframework.org/schema/context"
  5.     xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"
  6.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
  7.         http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
  8.         http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
  9.         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
  11.     <!-- @Controller注解扫描 -->
  12.     <context:component-scan base-package="com.carven.controller"/>
  14.     <!-- 注解驱动:
  15.             替我们显示的配置了最新版的注解的处理器映射器和处理器适配器 -->
  16.     <mvc:annotation-driven/>
  18.     <!-- 配置视图解析器 
  19.     作用:在controller中指定页面路径的时候就不用写页面的完整路径名称了,可以直接写页面去掉扩展名的名称
  20.     -->
  21.     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  22.         <!-- 真正的页面路径 =  前缀 + 去掉后缀名的页面名称 + 后缀 -->
  23.         <!-- 前缀 -->
  24.         <property name="prefix" value="/WEB-INF/jsp/"></property>
  25.         <!-- 后缀 -->
  26.         <property name="suffix" value=".jsp"></property>
  27.     </bean>
  29. </beans>

2.6 web.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.     xmlns="http://java.sun.com/xml/ns/javaee"
  4.     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
  5.     id="WebApp_ID" version="2.5">
  6.     <display-name>ssm</display-name>
  7.     <welcome-file-list>
  8.         <welcome-file>index.html</welcome-file>
  9.         <welcome-file>index.htm</welcome-file>
  10.         <welcome-file>index.jsp</welcome-file>
  11.         <welcome-file>default.html</welcome-file>
  12.         <welcome-file>default.htm</welcome-file>
  13.         <welcome-file>default.jsp</welcome-file>
  14.     </welcome-file-list>
  16.     <!-- 加载spring容器 -->
  17.     <context-param>
  18.         <param-name>contextConfigLocation</param-name>
  19.         <param-value>classpath:ApplicationContext-*.xml</param-value>
  20.     </context-param>
  21.     <listener>
  22.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  23.     </listener>
  26.     <!-- SpringMvc前端控制器 -->
  27.     <servlet>
  28.         <servlet-name>springmvc</servlet-name>
  29.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  30.         <init-param>
  31.             <param-name>contextConfigLocation</param-name>
  32.             <param-value>classpath:SpringMvc.xml</param-value>
  33.         </init-param>
  34.         <!-- 在tomcat启动的时候就加载这个servlet -->
  35.         <load-on-startup>1</load-on-startup>
  36.     </servlet>
  37.     <servlet-mapping>
  38.         <servlet-name>springmvc</servlet-name>
  39.         <url-pattern>*.action</url-pattern>
  40.     </servlet-mapping>
  42.     <!-- 配置Post请求乱码 -->
  43.     <filter>
  44.         <filter-name>CharacterEncodingFilter</filter-name>
  45.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  46.         <init-param>
  47.             <param-name>encoding</param-name>
  48.             <param-value>utf-8</param-value>
  49.         </init-param>
  50.     </filter>
  51.     <filter-mapping>
  52.         <filter-name>CharacterEncodingFilter</filter-name>
  53.         <url-pattern>/*</url-pattern>
  54.     </filter-mapping>
  55. </web-app>

3 Dao:mybatis逆向工程

4 Service

1、Service由spring管理

2、spring对Service进行事务控制

1 ItemService接口(例子)

  1. public interface ItemService {
  2.      List<Items> getItemsList();
  3. }

2 ItemServiceImpl实现类

  1. @Service
  2. public class ItemServiceImpl implements ItemService {
  4.      @Autowired
  5.      private ItemMapper itemMapper;
  7.      @Override
  8.      public List<Items> getItemsList() {
  9.           List<Items> itemList = itemMapper.getItemList();
  10.           return itemList;
  11.      }
  13. }

5 Controller

  1. @Controller
  2. public class ItemController {   
  3.     @Autowired
  4.     private ItemService itemService;
  6.     @RequestMapping("/itemList")
  7.     public ModelAndView getItemList() {
  8.         List<Items>list = itemService.getItemsList();
  9.         ModelAndView modelAndView = new ModelAndView();
  10.        modelAndView.addObject("itemList", list);
  11.        modelAndView.setViewName("itemList");
  12.        returnmodelAndView;
  13.     }
  14. }