Configure jdbc.properties under resources
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf8 jdbc.username=root jdbc.password=1234
Continue to configure the mybatis related configuration file mybatis-config.xml under resources
<?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>
<!-- Configure global properties-->
<settings>
<!-- Use jdbc's getGeneratedKeys to get the database self-incrementing primary key value -->
<setting name="useGeneratedKeys" value="true" />
<!-- Replace column names with column labels Default: true -->
<setting name="useColumnLabel" value="true" />
<!-- Turn on camelCase naming conversion: Table{create_time} -> bean{createTime} -->
<setting name="mapUnderscoreToCamelCase" value="true" />
<!-- print query statement-->
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>
</configuration>
Configure Spring's configuration file under resources/spring
1) dao layered spring-dao.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"
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">
<!-- Configure the process of integrating mybatis-->
<!-- 1. Configure the properties of database-related parameters properties: ${url} -->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!-- 2. Database connection pool -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- Configure connection pool properties-->
<property name="driverClass" value="${jdbc.driver}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<!-- Private properties of c3p0 connection pool -->
<property name="maxPoolSize" value="30" />
<property name="minPoolSize" value="10" />
<!-- Do not automatically commit after closing the connection -->
<property name="autoCommitOnClose" value="false" />
<!-- Get connection timeout time-->
<property name="checkoutTimeout" value="10000" />
<!-- When the connection fails to get the number of retries-->
<property name="acquireRetryAttempts" value="2" />
</bean>
<!-- 3. Configure the SqlSessionFactory object -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- Inject database connection pool-->
<property name="dataSource" ref="dataSource" />
<!-- Configure MyBaties global configuration file: mybatis-config.xml -->
<property name="configLocation" value="classpath:mybatis-config.xml" />
<!-- Scan entity packages using aliases -->
<property name="typeAliasesPackage" value="com.shop.bean" />
<!-- Scan sql configuration file: xml file required by mapper-->
<property name="mapperLocations" value="classpath:mapper/*.xml" />
</bean>
<!-- 4. Configure and scan the Dao interface package, dynamically implement the Dao interface, and inject it into the spring container -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- Inject sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
<!-- Give the Dao interface package that needs to be scanned -->
<property name="basePackage" value="com.shop.dao" />
</bean>
</beans>
2) Configure spring-service.xml of the service layer
<?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: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/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- Scan all classes using annotations under the service package -->
<context:component-scan base-package="com.shop.service" />
<!-- Configure Transaction Manager -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- Inject database connection pool-->
<property name="dataSource" ref="dataSource" />
</bean>
<!-- Configure annotation-based declarative transactions -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
3)controller层 spring-web.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:mvc="http://www.springframework.org/schema/mvc"
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/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-Deployment Spring MVC->
<!-- 1. Enable SpringMVC annotation mode-->
<!-- Simplified configuration: (1) Automatically register DefaultAnootationHandlerMapping, AnotationMethodHandlerAdapter
(2) Provide some columns: data binding, format of numbers and dates @NumberFormat, @DateTimeFormat, xml, json default read and write support -->
<mvc:annotation-driven />
<!-- 2. Default servlet configuration for static resources (1) Add processing of static resources: js, gif, png (2) Allow the use of "/" for overall mapping -->
<mvc:resources mapping="/resources/**" location="/resources/" />
<mvc:default-servlet-handler />
<!-- 3. Define the view resolver -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/html/"></property>
<property name="suffix" value=".html"></property>
</bean>
<!-- 4. Scan web-related beans -->
<context:component-scan base-package="com.shop.controller" />
</beans>
Integrate spring configuration together
configure web.xml
<!-- 配置DispatcherServlet -->
<servlet>
<servlet-name>spring-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- Configure the configuration files spring-dao.xml, spring-service.xml, spring-web.xml that springMVC needs to load
Mybatis - > spring -> springmvc -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-*.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>spring-dispatcher</servlet-name>
<!-- matches all requests by default -->
<url-pattern>/</url-pattern>
</servlet-mapping>