1 web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 统一字符集-->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- springmvc 的前端控制器 -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--
springMVC的配置文件
判断contextConfigLocation是否存在
存在:web容器会加载该配置项的value
不存在:web容器会去约定好的位置/WEB-INF/ 下寻找 <servlet-name>-servlet.xml
-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- spring的配置文件 -->
<!--
当配置ContextLoaderListener时 会监听contextConfigLocation是否存在
存在:web容器会加载该配置项的value
不存在:web容器会去约定好的位置/WEB-INF/ 下寻找applicationContext.xml
-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
</web-app>
2 spring的配置文件 applicationContext.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
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">
<context:component-scan base-package="com.mmall" />
<!-- 导入spring 和 mybatis的整合文件 -->
<import resource="spring-mybatis.xml" />
</beans>
<!-- 这是spring的配置文件
当配置-->
3 springMVC的配置文件 spring-mvc.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop"
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.xsd">
<!-- 激活spring-mvc的注解扫描 -->
<context:component-scan base-package="com.mmall" />
<!-- (1)自动注册DefaultAnnotationHandleMapping,AnnotationMethodHandlerAdapter
(2)提供一些列的功能:数据绑定,数字和日期format @NumberFormat,@DataTimeFormat,xml,json默认-->
<mvc:annotation-driven />
<!-- 文件上传 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="10485760"/> <!-- 10m -->
<property name="maxInMemorySize" value="4096" />
<property name="defaultEncoding" value="UTF-8"></property>
</bean>
</beans>
<!-- 这是spring-mvc 的配置文件 当web.xml中的DispatcherServlet中没有声明contextConfigLocation时
按照约定 默认去找 /WEB-INF/{servlet-name}-servlet.xml 作为配置文件
如果配置了contextConfigLocation 则去 <context-value> 的路径中查找配置文件-->
4 spring和mybatis的整合文件
<?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:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
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">
<!-- 1 导入jdbc.properties-->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:jdbc.properties</value>
</list>
</property>
</bean>
<!-- 2 JDBC数据库连接池-->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${db.driverClassName}"/>
<property name="url" value="${db.url}"/>
<property name="username" value="${db.username}"/>
<property name="password" value="${db.password}"/>
<!-- 连接池启动时的初始值 -->
<property name="initialSize" value="${db.initialSize}"/>
<!-- 连接池的最大值 -->
<property name="maxActive" value="${db.maxActive}"/>
<!-- 最大空闲值.当经过一个高峰时间后,连接池可以慢慢将已经用不到的连接慢慢释放一部分,一直减少到maxIdle为止 -->
<property name="maxIdle" value="${db.maxIdle}"/>
<!-- 最小空闲值.当空闲的连接数少于阀值时,连接池就会预申请去一些连接,以免洪峰来时来不及申请 -->
<property name="minIdle" value="${db.minIdle}"/>
<!-- 最大建立连接等待时间。如果超过此时间将接到异常。设为-1表示无限制 -->
<property name="maxWait" value="${db.maxWait}"/>
<!--#给出一条简单的sql语句进行验证 -->
<!--<property name="validationQuery" value="select getdate()" />-->
<property name="defaultAutoCommit" value="${db.defaultAutoCommit}"/>
<!-- 回收被遗弃的(一般是忘了释放的)数据库连接到连接池中 -->
<!--<property name="removeAbandoned" value="true" />-->
<!-- 数据库连接过多长时间不用将被视为被遗弃而收回连接池中 -->
<!--<property name="removeAbandonedTimeout" value="120" />-->
<!-- #连接的超时时间,默认为半小时。 -->
<property name="minEvictableIdleTimeMillis" value="${db.minEvictableIdleTimeMillis}"/>
<!--# 失效检查线程运行时间间隔,要小于MySQL默认-->
<property name="timeBetweenEvictionRunsMillis" value="40000"/>
<!--# 检查连接是否有效-->
<property name="testWhileIdle" value="true"/>
<!--# 检查连接有效性的SQL语句-->
<property name="validationQuery" value="SELECT 1 FROM dual"/>
</bean>
<!-- 3 配置sqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 配置MyBatis的全局配置文件 :mybatis-config.xml -->
<!--<property name="configLocation" value="classpath:mybatis-config.xml"/>-->
<!-- 扫描entity包 使用别名 -->
<property name="typeAliasesPackage" value="com.dsying.entity"/>
<!-- 扫描sql配置文件:***Mapper.xml -->
<property name="mapperLocations" value="classpath*:mappers/*.xml" />
</bean>
<!-- 4 配置扫描DAO接口 目的:为了动态实现Dao接口,注入到spring容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
<!-- 给出Dao接口包 -->
<property name="basePackage" value="com.mmall.dao" />
</bean>
<!-- 使用@Transactional进行声明式事务管理需要声明下面这行 -->
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
<!-- 事务管理 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
<!-- 失败回滚 -->
<property name="rollbackOnCommitFailure" value="true"/>
</bean>
</beans>
5 数据库参数 jdbc.properties
db.driverLocation=/Users/****/Develop/lib/mysql-connector-java-5.1.6-bin.jar
db.driverClassName=com.mysql.jdbc.Driver
db.username=用户名
db.password=密码
db.url=jdbc:mysql://localhost:3306/mmall_learning?characterEncoding=utf-8
db.initialSize = 20
db.maxActive = 50
db.maxIdle = 20
db.minIdle = 10
db.maxWait = 10
db.defaultAutoCommit = true
db.minEvictableIdleTimeMillis = 3600000
image.png7 项目结构图
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