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1. 引入依赖

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>14</maven.compiler.source>
    <maven.compiler.target>14</maven.compiler.target>
    <spring.version>5.0.2.RELEASE</spring.version>
    <slf4j.version>1.6.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <shiro.version>1.2.3</shiro.version>
    <mysql.version>8.0.11</mysql.version>
    <mybatis.version>3.5.5</mybatis.version>
  </properties>
 
  <dependencies>
    <!-- spring -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.6.8</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!-- log start -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <!-- log end -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.0</version>
    </dependency>
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
  </dependencies>

2. springMVC.xml【resources目录】

<?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">
    
  <!-- 开启注解扫描 -->
  <context:component-scan base-package="cn.zh">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
  </context:component-scan>

  <!-- 配置视图解析器 -->
  <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/pages/"></property>
    <property name="suffix" value=".jsp"></property>
  </bean>

  <!-- 过滤静态资源 -->
  <mvc:resources location="/css/" mapping="/css/**"/>
  <mvc:resources location="/images/" mapping="/images/**"/>
  <mvc:resources location="/js/" mapping="/js/**"/>

  <!-- 开始springmvc注解的支持 -->
  <mvc:annotation-driven/>
</beans>

3. applicationContext.xml【resources目录】

<?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">

  <!-- 开启注解扫描 -->
  <context:component-scan base-package="cn.zh">
    <!-- 配置哪些不扫描 -->
    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
  </context:component-scan>

  
  <!-- spring整合mybatis -->
  <!-- 配置连接池 -->
  <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <property name="driverClass" value="com.mysql.jdbc.Driver"/>
    <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssm?serverTimezone=GMT%2B8"/>
    <property name="username" value="root"/>
    <property name="password" value="root"/>
  </bean>
  <!-- 配置sqlSessionFactory工厂 -->
  <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
  </bean>
  <!-- 配置AccountDao接口所在的包 -->
  <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="cn.zh.dao"></property>
  </bean>

  <!-- 配置spring声明式的事务管理 -->
  <!-- 配置事务管理器 -->
  <bean id="transactionManager" class="org.springframework.jdbc.datasorce.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"></property>
  </bean>
  <!-- 配置事务通知 -->
  <tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
      <tx:method name="find*" read-only="true"/>
      <tx:method name="*" isolation="DEFAULT"/>
    </tx:attributes>
  </tx:advice>
  <!-- 配置AOP -->
  <aop:config>
    <aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.zh.service.impl.*ServiceImpl.*(..))"/>
  </aop:config>
</beans>

4. web.xml【webapp/WEB-INF/下】

<?xml version="1.0" encoding="UTF-8"?> 
<web-app version="2.4"
         xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <display-name>Archetype Created Web Application</display-name>

  <!-- 配置监听器，默认只加载WEB-INF目录下的applicationContext.xml配置文件 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 设置配置文件的路径 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

  <!-- 配置前端控制器 -->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 加载springmvc.xml配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!-- 启动服务器，创建该servlet -->
    <load-on-startup>1</load-on-startup>
  </servlet>  
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!-- 解决中文乱码的过滤器 -->
  <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.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>

5. Dao层

/**
 * 持久层
 */
@Registered
public interface AccountDao {

  /**
   * 查询所有
   * @return
   */
  @Select("select * from account")
  public List<Account> findAll();

  /**
   * 保存账户
   */
  @Insert("insert into account (name,money) values (#{name},#{money})")
  public void saveAccount(Account account);

}

6. Service层

/**
 * 业务层
 */
@Service("accountService")
public class AccountServiceImpl implements AccountService {

  @Autowired
  private AccountDao accountDao;

  @Override
  public List<Account> findAll() {
    System.out.println("Service___findAll......");
    return accountDao.findAll();
  }

  @Override
  public void saveAccount(Account account) {
    accountDao.saveAccount(account);
  }

  
}

7. Controller层

/**
 * 表现层
 */
@Controller("accountController")
@RequestMapping("/account")
public class AccountController {
  
  @Autowired
  private AccountService accountService;

  @RequestMapping("/findAll")
  public String findAll(){
    accountService.findAll();
    return "list";
  }

}