声明：教程是网上找的，代码是自己敲的
项目目录大致如下：
1. 首先创建Maven工程，在pom.xml中加入项目所需依赖：
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>4.0.0modelVersion>
<groupId>com.fitsoftgroupId>
<artifactId>shopmgrartifactId>
<version>1.0-SNAPSHOTversion>
<packaging>warpackaging>
<properties>
<junit.version>4.11junit.version>
<jsp.api.version>8.5.5jsp.api.version>
<jstl.version>1.2jstl.version>
<spring.version>4.1.6.RELEASEspring.version>
<aspectjweaver.version>1.8.5aspectjweaver.version>
<mybatis.version>3.2.8mybatis.version>
<mybatis.spring.version>1.2.2mybatis.spring.version>
<c3p0.version>0.9.5c3p0.version>
<mysql.version>8.0.11mysql.version>
<log4j.version>1.2.17log4j.version>
<json.version>2.4json.version>
properties>
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>${junit.version}version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.apache.tomcatgroupId>
<artifactId>tomcat-jsp-apiartifactId>
<version>${jsp.api.version}version>
<scope>providedscope>
dependency>
<dependency>
<groupId>jstlgroupId>
<artifactId>jstlartifactId>
<version>${jstl.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-ormartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.aspectjgroupId>
<artifactId>aspectjweaverartifactId>
<version>${aspectjweaver.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>${mybatis.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>${mybatis.spring.version}version>
dependency>
<dependency>
<groupId>com.mchangegroupId>
<artifactId>c3p0artifactId>
<version>${c3p0.version}version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>${mysql.version}version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>${log4j.version}version>
dependency>
<dependency>
<groupId>net.sf.json-libgroupId>
<artifactId>json-libartifactId>
<version>${json.version}version>
<classifier>jdk15classifier>
dependency>
dependencies>
project>
2. 由于项目使用c3p0连接池，因此需要在resource目录下配置c3p0.properties，主要配置数据库驱动、地址、用户名、密码等属性。文件内容如下：
#连接数据库的地址 #配置数据库的驱动 c3p0.driverClass=com.mysql.cj.jdbc.Driver c3p0.jdbcUrl=jdbc:mysql://localhost:3306/imoocdb?&characterEncoding=utf8&useSSL=false&serverTimezone=GMT&rewriteBatchedStatements=true&allowPublicKeyRetrieval=true c3p0.user=root c3p0.password= #c3p0.maxPoolSize=20 #c3p0.minPoolSize=2 #c3p0.initialPoolSize=2 #c3p0.maxIdleTime=60
3. 项目启动首先要进入web.xml文件，因此Spring的监听器就放在这里配置
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_4_0.xsd"
version="4.0">
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:/spring/application*.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
web-app>
4. 监听器用来加载application.xml的配置文件，注释太详细，不多说：
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:p="http://www.springframework.org/schema/p"
xmlns:c="http://www.springframework.org/schema/c"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
">
<context:component-scan base-package="com.fitsoft.shop"/>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"/>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" p:dataSource-ref="dataSource">
<property name="typeAliasesPackage" value="com.fitsoft.shop.bean"/>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer" p:sqlSessionFactoryBeanName="sqlSessionFactory">
<property name="basePackage" value="com.fitsoft.shop.repository"/>
bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" p:dataSource-ref="dataSource"/>
<tx:annotation-driven transaction-manager="transactionManager"/>
beans>