ssm框架详细讲解（二）集成

我不是女神ヾ 2021-12-21 15:55 345阅读 0赞

![20190628142556744.png][]

## 1.搭建环境 ##

>  整合流程
> 
> 整合说明：SSM整合可以使用多种方式，咱们会选择XML + 注解的方式

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70][]

> 三层架构中,控制层调用Service层,Service层调用Dao层,控制层会将Bean对象注入到SpringMVCIOC容器中,Service和Dao层将会Bean对象注入到SpringIOC容器中.

![20190628143656466.png][]

### 1.1整合思路 ###

> 1.先搭建整合的环境
> 
> 2.在搭建SpringMVC,只搭建控制层
> 
> 3.在搭建Service层,集成Spring
> 
> 4.最后使用Spring整合MyBatis框架

## 工程搭建 ##

### 1.1创建表结构 ###

![20190628144957142.png][]

### 1.2引入依赖 ###

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.itheima</groupId>
        <artifactId>ssm</artifactId>
        <version>1.0-SNAPSHOT</version>
        <packaging>war</packaging>
    
        <properties>
            <spring.version>5.0.2.RELEASE</spring.version>
            <slf4j.version>1.6.6</slf4j.version>
            <log4j.version>1.2.12</log4j.version>
            <mysql.version>5.1.6</mysql.version>
            <mybatis.version>3.4.5</mybatis.version>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        </properties>
    
        
        <dependencies>
            
            <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-web</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-test</artifactId>
                <version>${spring.version}</version>
            </dependency>
    
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-tx</artifactId>
                <version>${spring.version}</version>
            </dependency>
    
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
    
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>compile</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>
    
            
            <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>
            
            <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>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                    <configuration>
                        <port>18081</port>
                        <path>/</path>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    </project>

### 1.3创建javaBean(Account) ###

package com.itheima.domain;
    
    import lombok.Data;
    import lombok.ToString;
    
    @Data
    @ToString
    public class Account {
        private Integer id;
        private String name;
        private double money;
    }

## 重点集成SpingMVC ##

> **集成的步骤：**
> 
> **1.web.xml中配置SpringMVC的核心配置文件**
> 
> **2.web.xml中配置Spring的POST的编码过滤器**
> 
> **3.创建SpringMVC的核心配置文件spring.xml**
> 
> **4.在springMVC的核心配置注解驱动，包扫描，视图解析器，静态资源过滤器等.**

### 1.1集成SpringMVC ###

> web.xml配置
> 
> web.xml中配置前端核心控制器和POST编码过滤器

### 代码如下： ###

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
             version="3.1">
        
        
        <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>
        
        <servlet>
            <servlet-name>dispatcherServlet</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:springmvc.xml</param-value>
            </init-param>
            
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>dispatcherServlet</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    </web-app>

### 1.2SpingMVC核心配置文件 ###

> 在resources下创建springmvc.xml核心配置文件

### 代码如下： ###

<?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">
        
        
        <context:component-scan base-package="com.itheima"/>
        
        <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            
            <property name="prefix" value="/WEB-INF/pages/" />
            
            <property name="suffix" value=".jsp" />
        </bean>
        
        <mvc:resources location="/css/" mapping="/css/**" />
        <mvc:resources location="/images/" mapping="/images/**" />
        <mvc:resources location="/js/" mapping="/js/**" />
        
        <mvc:annotation-driven/>
    </beans>

## 创建控制层和对应的页面 ##

### 1.1创建控制层 ###

> ### 面试题：@controller与@service的区别，还有@controller里可以@service吗？ ###
> 
> ![2019062815321429.png][]
> 
> ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 1][]

package com.itheima.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    /***
     * 控制层
     */
    @Controller
    @RequestMapping(value = "/account")
    public class AccountController {
        /***
         * list集合的查询
         * @return
         */
        @RequestMapping(value = "/list")
        public String list(){
            System.out.println("list");
            return "list";
        }
        /***
         * 增加
         */
        @RequestMapping(value = "/add")
        public String add(){
            System.out.println("add");
            return "redirect:/account/list";
        }
    }

### 1.2创建页面 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 2][]

## 访问页面： ##

![20190628154720498.png][]

后台结果:

![20190628154757259.png][]

## 集成Spring ##

### 准备工作 ###

### 1.1创建Service接口 ###

> 创建com.itheima.service.AccountService接口，代码如下:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 3][]

### 1.2创建Service实现类 ###

> 创建com.itheima.service.impl.AccountServiceImpl实现类，代码如下：

package com.itheima.service.impl;
    
    import com.itheima.domain.Account;
    import com.itheima.service.AccountService;
    
    import java.util.List;
    
    public class AccountServiceImpl implements AccountService{
        /***
         * 集合
         * @return
         */
        @Override
        public List<Account> list() {
            System.out.println("list");
            return null;
        }
    
        /***
         * 增加
         * @param account
         * @return
         */
        @Override
        public int add(Account account) {
            System.out.println("add");
            return 0;
        }
    }

## 1.3集成Sping ##

> 创建spring核心配置文件

### 1.4包扫描问题 ###

> ### 包扫描冲突解决： ###
> 
> 问题解决：此时spring核心配置文件配置会扫描com.itheima的包及所有的子包，会将所有对象Bean交给SpringIOC容器管理，而前面springmvc也会扫描com.itheima的包及所有的子包，会将所有的对象的Bean交给SpringMVCIOC容器管理，此时会导致2个容器中Bean的冲突，会导致后续事务失效，所以我们需要解决一下。
> 
> ### 我们可以让springmvc只扫描@Controller的注解，而@Conntroller注解不扫描，其他的都扫描 ###

### 修改Spring.xml的注解 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 4][]

### 修改SpringMVC.xml的注解 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 5][]

## 集成Spring,SpringMVC ##

> 集成Spring和SpringMVC，只需要创建SpringIOC容器即可，SpringMVCIOC容器设置为自己的父容器
> 
> 创建SpringIOC容器可以使用监听器来实现，所以我们需要在web.xml中配置监听器。

### 1.1修改web.xml添加如下监听器，并指定spring的核心配置文件. ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 6][]

### 1.2集成的测试 ###

> 修改AccountController,在AccountController中调用Service，代码如下

package com.itheima.controller;
    
    import com.itheima.domain.Account;
    import com.itheima.service.AccountService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    /***
     * Autowring for Bean Class:Bean的类自动装配
     * 控制层
     */
    @Controller
    @RequestMapping(value = "/account")
    public class AccountController {
        //注入AccountService
        @Autowired
        private AccountService accountService;
        /***
         * list集合的查询
         * @return
         */
        @RequestMapping(value = "/list")
        public String list(){
           //调用Service
            final List<Account> list = accountService.list();
            System.out.println(list+"-------:]");
            return "list";
        }
        /***
         * 增加
         */
        @RequestMapping(value = "/add")
        public String add(){
            final Account account = new Account();
            account.setName("分一般的男子");
            account.setMoney(100000d);
            System.out.println("add");
            //保存
            final int add = accountService.add(account);
            System.out.println("影响的行数:"+add);
            return "redirect:/account/list";
        }
    }

## 集成MyBatis ##

![20190628170143534.png][]

package com.itheima.dao;
    
    import com.itheima.domain.Account;
    import org.apache.ibatis.annotations.Insert;
    import org.apache.ibatis.annotations.Select;
    
    import java.util.List;
    
    public interface AccountDao {
        /***
         * 保存的账号
         * @param account
         * @return
         */
        @Insert("insert into account(name,money) values(#{name},#{money})")
        int add(Account account);
    
        /***
         * 查询所有
         * @return
         */
        @Select("select * from account")
        List<Account> list();
    }

### 1.1修改spring.xml在spring.xml中添加如下配置 ###

<?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: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.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd">
    
        
        
        <context:component-scan base-package="com.itheima">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        </context:component-scan>
        
        <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
            <property name="url" value="jdbc:mysql:///ssm"/>
            <property name="username" value="root"/>
            <property name="password" value="root"/>
        </bean>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.itheima.dao"/>
        </bean>
    </beans>

![20190628170829305.png][]

### 1.2Spring的集成的测试 ###

![20190628171248676.png][]

package com.itheima;
    
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class SpringMyBatisTest {
        @Test
        public void testSpringMyBatis(){
            ApplicationContext act= new ClassPathXmlApplicationContext("spring.xml");
            //获取容器中所有的Bean的名字
            final String[] names = act.getBeanDefinitionNames();
            for (String name : names) {
                System.out.println(name);
            }
        }
    }

### 后台显示 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 7][]

### 1.3三层对接测试 ###

> 实现Controller调用Service，Service调用Dao，所以我们需要在Service中注入Dao，并调用Dao。

### AccountServiceImpl的代码 ###

package com.itheima.service.impl;
    
    import com.itheima.dao.AccountDao;
    import com.itheima.domain.Account;
    import com.itheima.service.AccountService;
    import org.springframework.beans.factory.annotation.Autowired;
    
    import java.util.List;
    
    /***
     * 服务实现类
     */
    public class AccountServiceImpl implements AccountService{
        //注入Dao层
        @Autowired
        private AccountDao accountDao;
        /***
         * 集合
         * @return
         */
        @Override
        public List<Account> list() {
            return accountDao.list();
        }
    
        /***
         * 增加
         * @param account
         * @return
         */
        @Override
        public int add(Account account) {
            return accountDao.add(account);
        }
    }

### AccountController代码 ###

package com.itheima.controller;
    
    import com.itheima.domain.Account;
    import com.itheima.service.AccountService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    /***
     * Autowring for Bean Class:Bean的类自动装配
     * 控制层
     */
    @Controller
    @RequestMapping(value = "/account")
    public class AccountController {
        //注入AccountService
        @Autowired
        private AccountService accountService;
        /***
         * list集合的查询
         * @return
         */
        @RequestMapping(value = "/list")
        public String list(Model model){
           //调用Service
            List<Account> accounts = accountService.list();
            model.addAttribute("accounts",accounts);
            return "list";
        }
        /***
         * 增加
         */
        @RequestMapping(value = "/add")
        public String add(){
            final Account account = new Account();
            account.setName("分一般的男子");
            account.setMoney(100000d);
            System.out.println("add");
            //保存
            final int add = accountService.add(account);
            System.out.println("影响的行数:"+add);
            return "redirect:/account/list";
        }
    }

### list.jsp的代码 ###

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>网页</title>
    </head>
    <body>
    <c:forEach items="${accounts}" var="account">
        <div>${account}</div>
    </c:forEach>
    </body>
    </html>

### 网页显示 ###

![20190628172715416.png][]

## ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTc2NzYx_size_16_color_FFFFFF_t_70 8][] ##

## 重点项目完整的配置： ##

### 1.1web.xml ###

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
             version="3.1">
    
        
        <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>
    
        
        <servlet>
            <servlet-name>dispatcherServlet</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:springmvc.xml</param-value>
            </init-param>
            
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>dispatcherServlet</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    
        
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring.xml</param-value>
        </context-param>
    </web-app>

### 1.2Springmvc.xml ###

<?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">
    
        
        <context:component-scan base-package="com.itheima" use-default-filters="false">
            <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        </context:component-scan>
    
        
        <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            
            <property name="prefix" value="/WEB-INF/pages/" />
            
            <property name="suffix" value=".jsp" />
        </bean>
    
        
        <mvc:resources location="/css/" mapping="/css/**" />
        <mvc:resources location="/images/" mapping="/images/**" />
        <mvc:resources location="/js/" mapping="/js/**" />
    
        
        <mvc:annotation-driven />
    </beans>

### 1.3spring.xml的配置 ###

<?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: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.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd">
    
        
        <context:component-scan base-package="com.itheima">
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        </context:component-scan>
    
        
        <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
            <property name="url" value="jdbc:mysql://127.0.0.1:3306/spring5"/>
            <property name="username" value="root"/>
            <property name="password" value="itcast"/>
        </bean>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.itheima.dao"/>
        </bean>
    
        
        <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        <tx:advice id="txAdvice" transaction-manager="txManager">
            <tx:attributes>
                <tx:method name="list*" read-only="true"/>
                <tx:method name="*" isolation="DEFAULT"/>
            </tx:attributes>
        </tx:advice>
    
        
        <aop:config>
            <aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.itheima.service.impl.*.*(..))"/>
        </aop:config>
    </beans>

### 1.4pom.xml的配置 ###

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