第3天 Spring、SpringMVC、MyBatis集成
学习目标
SSM集成
-
集成流程理解
-
集成SpringMVC
-
集成Spring
-
集成MyBatis
-
事务测试
第1章 搭建环境
1.1 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
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层会将Bean对象注入到SpringIOC容器中，而SpringMVCIOC容器的父容器正好是SpringIOC容器，子容器可以使用父容器的Bean对象，所以可以实现三大框架集成。
整合的思路
-
先搭建整合的环境
-
再搭建SpringMVC，只搭建控制层
-
再搭建Service层，集成Spring
-
最后使用Spring整合MyBatis框架
1.2 工程搭建
(1)创建表结构
create table account(
id int primary key auto_increment,
name varchar(20),
money double
);
(2)工程中搭建
创建一个工程名字叫ssm，并引入pom.xml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.qf</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>
<!--依赖jar包-->
<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-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>
<!-- 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>
<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>
(3)创建JavaBean
创建com.itheima.model.Account对象，代码如下：
public class Account {
private Integer id;
private String name;
private Double money;
//..set..get..toString 略
}
第2章 集成SpringMVC
2.1 集成步骤回顾
我们首先集成SpringMVC，集成SpringMVC的步骤我们回顾一下
1.web.xml中配置SpringMVC核心控制器
2.web.xml中配置SpringMVC的POST编码过滤器
3.创建SpringMVC的核心配置文件springmvc.xml
4.在SpringMVC的核心配置文件中配置注解驱动、包扫描、视图解析器、静态资源过滤等
2.2 准备工作
先创建一下控制层和对应的页面。
2.2.1 创建控制层
创建com.itheima.controller.AccountController，代码如下：
@Controller
@RequestMapping(value = "/account")
public class AccountController {
/**
* list集合查询
* @return
*/
@RequestMapping(value = "/list")
public String list(){
System.out.println("AccountController.list");
return "list";
}
/***
* 增加
* @return
*/
@RequestMapping(value = "/add")
public String add(){
System.out.println("AccountController.add");
return "redirect:/account/list";
}
}
2.2.2 创建页面
创建/WEB-INF/pages/list.jsp，代码如下：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
list
</body>
</html>
创建index.jsp，代码如下：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<a href="/account/list">SSM集成</a>
</body>
</html>
2.3 集成SpringMVC
2.3.1 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">
<!-- 配置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>
<!-- 配置前端控制器：服务器启动必须加载，需要加载springmvc.xml配置文件 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置初始化参数，创建完DispatcherServlet对象，加载springmvc.xml配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
2.3.2 SpringMVC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">
<!-- 扫描controller的注解，别的不扫描 -->
<context:component-scan base-package="com.itheima" />
<!-- 配置视图解析器 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- JSP文件所在的目录 -->
<property name="prefix" value="/WEB-INF/pages/" />
<!-- 文件的后缀名 -->
<property name="suffix" value=".jsp" />
</bean>
<!-- 设置静态资源不过滤,如果目录不存在，会报红，这里不是程序问题，是idea检测到目录不存在-->
<mvc:resources location="/css/" mapping="/css/**" />
<mvc:resources location="/images/" mapping="/images/**" />
<mvc:resources location="/js/" mapping="/js/**" />
<!-- 开启对SpringMVC注解的支持 -->
<mvc:annotation-driven />
</beans>
2.4 测试
使用tomcat运行起来，端口号为18081,分别测试如下地址：
http://localhost:18081/account/list
http://localhost:18081/account/add
后台输出
AccountController.list
AccountController.add
AccountController.list
第3章 集成Spring
3.1 准备工作
(1)创建Service接口
创建com.itheima.service.AccountService接口，代码如下：
public interface AccountService {
/***
* 集合
*/
List<Account> list();
/***
* 增加
*/
int add(Account account);
}
(2)创建Service实现类
创建com.itheima.service.impl.AccountServiceImpl实现类，代码如下：
@Service
public class AccountServiceImpl implements AccountService {
/**
* 集合
* @return
*/
@Override
public List<Account> list() {
System.out.println("AccountServiceImpl.list");
return null;
}
/**
* 增加
* @param account
* @return
*/
@Override
public int add(Account account) {
System.out.println("AccountServiceImpl.add");
return 0;
}
}
3.2 集成Spring
3.2.1 创建spring核心配置文件
创建spring.xml核心配置文件，在配置文件中配置包扫描，代码如下：
<?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">
<!-- 开启注解扫描-->
<context:component-scan base-package="com.itheima" />
</beans>
==3.2.2 包扫描冲突解决==
问题说明：此时spring核心配置会扫描com.itheima的包及所有子包，会将所有对象的Bean交给SpringIOC容器管理，而前面springmvc也会扫描com.itheima的包及所有子包，会将所有对象的Bean交给SpringMVCIOC容器管理，此时会导致2个容器中的Bean冲突，会导致后续事务失效以及部分注解失效,所以我们需要将冲突问题解决下。
我们可以让springmvc只扫描@Controller注解，spring除了@Controller注解不扫描，其他注解都扫描。
(1)需改springmvc.xml包扫描
<!-- 扫描controller的注解，别的不扫描 -->
<context:component-scan base-package="com.itheima" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
(2)修改spring.xml包扫描
<!--开启注解扫描，要扫描的是service和dao层的注解，要忽略web层注解，因为web层让SpringMVC框架去管理-->
<context:component-scan base-package="com.itheima">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
3.3 集成Spring、SpringMVC
集成Spring和SpringMVC，只需要创建SpringIOC容器即可，SpringMVCIOC容器会自动将SpringIOC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。
修改web.xml添加如下监听器，并指定spring的核心配置文件
<!-- 配置Spring的监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置加载类路径的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
3.4 集成测试
修改AccountController,在AccountController中调用Service，代码如下：
访问http://localhost:18081/account/list测试，后台输出如下：
AccountServiceImpl.list
第4章 集成MyBatis
4.1 环境准备
创建com.itheima.dao.AccountDao接口，代码如下：
public interface AccountDao {
/***
* 保存账号
* @param account
*/
@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();
}
4.2 MyBatis使用回顾(SSM集成中不用)
在以前学习MyBatis的时候，会先创建一个MyBatis的SqlMapConfig.xml核心配置文件，然后在配置文件中配置数据库连接信息，映射文件配置等，再创建一个测试类，创建SqlSession，通过SqlSession创建Dao的代理对象，通过代理对象实现增删改查。
(1)创建SqlMapConfig.xml
在resources下创建SqlMapConfig.xml配置文件，代码如下：
<?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>
<environments default="mysql">
<environment id="mysql">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" 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"/>
</dataSource>
</environment>
</environments>
<!-- 使用的是注解 -->
<mappers>
<!-- <mapper class="cn.itcast.dao.AccountDao"/> -->
<!-- 该包下所有的dao接口都可以使用 -->
<package name="com.itheima.dao"/>
</mappers>
</configuration>
(2)测试类
创建MyBatisTest测试类，代码如下：
public class MyBatisTest {
@Test
public void testMyBatis() throws IOException {
//获取SqlMapConfig.xml字节输入流
InputStream is = Resources.getResourceAsStream("SqlMapConfig.xml");
//获取SqlSessionFactoryBuilder对象
SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
//创建SqlSessionFactory
SqlSessionFactory sqlSessionFactory = builder.build(is);
//创建sqlSession
SqlSession sqlSession = sqlSessionFactory.openSession(true);
AccountDao accountDao = sqlSession.getMapper(AccountDao.class);
//查询所有
List<Account> accounts = accountDao.list();
for (Account account : accounts) {
System.out.println(account);
}
//关闭资源
sqlSession.close();
}
}
测试完成后，可以将测试类MyBatisTest和SqlMapConfig.xml文件删掉了，这里只是回顾以前MyBatis的操作过程。
4.3 集成MyBatis
修改spring.xml在spring.xml中添加如下配置：
<!-- 配置的连接池对象 -->
<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>
<!-- 配置SqlSession的工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置扫描dao的包 -->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.itheima.dao"/>
</bean>
SqlSessionFactoryBean主要取代了之前SqlSessionFactory的相关操作。
MapperScannerConfigurer主要是取代之前的SqlMapConfig.xml中mappers配置，指定dao接口的包路径。
集成后，Spring会给每个Dao创建一个代理对象，相当于之前测试案例中的getMapper(Dao.class)创建代理对象一样，并将代理对象注入到SpringIOC容器中。
4.4 Spring集成MyBatis测试
创建SpringMyBatisTest测试类，测试SpringIOC容器中是否有AccountDao的代理对象在容器中，如果有，则表明集成成功！
public class SpringMyBatisTest {
/***
* 测试Spring和MyBatis集成
* 如果给每个Dao生成了代理对象，则表示集成成功
*/
@Test
public void testSpringMyBatis(){
ApplicationContext act = new ClassPathXmlApplicationContext("spring.xml");
//获取容器中所有Bean的名字
String[] names = act.getBeanDefinitionNames();
for (String name : names) {
System.out.println(name);
}
}
}
测试结果如下：
accountServiceImpl
org.springframework.context.annotation.internalConfigurationAnnotationProcessor
org.springframework.context.annotation.internalAutowiredAnnotationProcessor
org.springframework.context.annotation.internalRequiredAnnotationProcessor
org.springframework.context.annotation.internalCommonAnnotationProcessor
org.springframework.context.event.internalEventListenerProcessor
org.springframework.context.event.internalEventListenerFactory
dataSource
sqlSessionFactory
mapperScanner
accountDao
用DEBUG模式的时候，能明显看到accountDao是个代理对象
4.5 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。
(1)修改AccountServiceImpl
(2)修改AccountController
(3)修改list.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<c:forEach items="${accounts}" var="account">
<div>${account}</div>
</c:forEach>
</body>
</html>
测试效果如下：
http://localhost:18081/account/list
第5章 声明式事务配置
5.1 声明式事务配置
修改spring.xml,添加如下声明式事务配置
<!-- 配置事务管理器 -->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置事务通知 -->
<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>
<!-- 配置AOP增强事务 -->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.itheima.service.impl.*.*(..))"/>
</aop:config>
5.2 事务测试
修改com.itheima.service.impl.AccountServiceImpl的add方法，添加异常代码，代码如下：
/**
* 增加
* @param account
* @return
*/
@Override
public int add(Account account) {
int count = accountDao.add(account);
System.out.println("受影响行数："+count);
int q=10/0;
return count;
}
访问http://localhost:18081/account/add测试，效果如下： 页面报错
后台输出：
受影响行数：1
数据库数据并未增加
附录：
项目最终结构
项目完整配置文件
web.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">
<!-- 配置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>
<!-- 配置前端控制器：服务器启动必须加载，需要加载springmvc.xml配置文件 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置初始化参数，创建完DispatcherServlet对象，加载springmvc.xml配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置Spring的监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置加载类路径的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
</web-app>
springmvc.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">
<!-- 扫描controller的注解，别的不扫描 -->
<context:component-scan base-package="com.itheima" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 配置视图解析器 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- JSP文件所在的目录 -->
<property name="prefix" value="/WEB-INF/pages/" />
<!-- 文件的后缀名 -->
<property name="suffix" value=".jsp" />
</bean>
<!-- 设置静态资源不过滤,如果目录不存在，会报红，这里不是程序问题，是idea检测到目录不存在-->
<mvc:resources location="/css/" mapping="/css/**" />
<mvc:resources location="/images/" mapping="/images/**" />
<mvc:resources location="/js/" mapping="/js/**" />
<!-- 开启对SpringMVC注解的支持 -->
<mvc:annotation-driven />
</beans>
spring.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: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">
<!-- 开启注解扫描，要扫描的是service和dao层的注解，要忽略web层注解，因为web层让SpringMVC框架去管理 -->
<context:component-scan base-package="com.itheima">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 配置的连接池对象 -->
<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>
<!-- 配置SqlSession的工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置扫描dao的包 -->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.itheima.dao"/>
</bean>
<!-- 配置事务管理器 -->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置事务通知 -->
<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>
<!-- 配置AOP增强事务 -->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.itheima.service.impl.*.*(..))"/>
</aop:config>
</beans>
pom.xml
<?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>
<!--依赖jar包-->
<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-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>
<!-- 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>
<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>
