Sprring MVC + Spring + MyBatis 整合

一、創建數據庫 SQL

CREATE TABLE user(
	id INT PRIMARY KEY AUTO_INCREMENT,
	name VARCHAR(100),
	sex VARCHAR(1),
	age INT);

二、創建與數據庫表對應的類

public class User implements Serializable {
    private Integer id;
    private String name;
    private String sex;
    private Integer age;
	// 省略 Get、Set 方法
}

三、創建持久層接口

public interface IUserDao {

    public List<User> findUser();
}

四、創建持久層映射文件

<?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="chu.yi.bo.dao.IUserDao">
    <!-- 查詢所有用戶 -->
    <select id="findUser" resultType="chu.yi.bo.domain.User">
        select * from user;
    </select>
</mapper>

五、創建業務層接口

public interface IUserService {

    List<User> findUser();
}

六、創建業務層接口實現類

@Service("accountService")
public class UserServiceImpl implements IUserService {
    @Autowired
    private IUserDao userDao;

    @Override
    public List<User> findUser() {
        return userDao.findUser();
    }
}

七、創建 Spring 配置文件

      ApplicationContext.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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/tx
            http://www.springframework.org/schema/tx/spring-tx.xsd
            http://www.springframework.org/schema/aop
            http://www.springframework.org/schema/aop/spring-aop.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置 Spring 創建容器要掃描的包 -->
    <context:component-scan base-package="chu.yi.bo">
        <!--制定掃包規則，不掃描 @Controller 註解的 JAVA 類 -->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>

    <!-- 配置 MyBatis 的 Session 工廠 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 數據庫連接池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!-- 配置數據源 -->
    <bean id="dataSource" class="org.apache.ibatis.datasource.pooled.PooledDataSource">
        <property name="driver" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/test"/>
        <property name="username" value="root"/>
        <property name="password" value="123456"/>
    </bean>

    <!-- 配置 Mapper 掃描器 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="chu.yi.bo.dao"/>
    </bean>

    <!-- 配置事務管理器 -->
    <bean  id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 配置事務通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="*" propagation="REQUIRED" read-only="false"/>
        </tx:attributes>
    </tx:advice>

    <!-- 配置事務 AOP -->
    <aop:config>
        <!-- 配置切入點表達式 -->
        <aop:pointcut  expression="execution(* chu.yi.bo.service.impl.*.*(..))" id="pt"/>
        <!-- 建立通知和切入點表達式的關係 -->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>
    </aop:config>
</beans>

八、創建 Controller

@Controller("userController")
public class UserController {
    @Autowired
    private IUserService userService;

    @RequestMapping("/findUser")
    public String findUser() {
        List<User> userList = userService.findUser();
        System.out.println(userList);
        return "success";
    }
}

九、創建 Spring MVC 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置創建 Spring 容器要掃描的包 -->
    <context:component-scan base-package="chu.yi.bo">
        <!-- 制定掃包規則 ,只掃描使用 @Controller 註解的 JAVA 類 -->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>

    <!-- 配置視圖解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 加載處理映射器和處理適配器 -->
    <mvc:annotation-driven/>

</beans>

十、配置 web.xml 文件

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>

  <!--指定 Spring 配置文件路徑 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:ApplicationContext.xml</param-value>
  </context-param>

  <!-- 配置 Spring MVC 編碼過濾器 -->
  <filter>
    <filter-name>CharacterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <!-- 設置過濾器編碼格式 -->
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <!-- 啓動過濾器 -->
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>

  <!-- 配置過濾器攔截哪些請求 URL -->
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!-- 配置 Spring 監聽器，用於啓動服務時加載 Spring 配置文件 -->
  <listener>
    <listener-class>
      org.springframework.web.context.ContextLoaderListener
    </listener-class>
  </listener>

  <!-- 配置 Spring MVC 的核心控制器 -->
  <servlet>
    <servlet-name>DispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置初始化參數，用於讀取 Spring MVC 配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:SpringMVC.xml</param-value>
    </init-param>
  </servlet>

  <!-- 配置 Spring MVC 核心過濾器攔截哪些請求 URL -->
  <servlet-mapping>
    <servlet-name>DispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>