基于MAVEN的SSM+ehcache+c3p0

目录结构：

2.pom.xml

<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.alibaba</groupId>
    <artifactId>springmvc</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <springversion>4.0.0.RELEASE</springversion>
        <junitversion>4.12</junitversion>
        <loggingversion>1.1.3</loggingversion>
        <jacksonversion>2.1.5</jacksonversion>
    </properties>
    <dependencies>

        <!-- db -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.35</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.1.1</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.2</version>
        </dependency>

        <!-- cglib -->
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2.2</version>
        </dependency>

        <!-- log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <!-- c3p0数据源 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5-pre10</version>
        </dependency>

        <!-- ehcache -->
        <dependency>
            <groupId>org.mybatis.caches</groupId>
            <artifactId>mybatis-ehcache</artifactId>
            <version>1.0.3</version>
        </dependency>
        <dependency>
            <groupId>net.sf.ehcache</groupId>
            <artifactId>ehcache-core</artifactId>
            <version>2.6.11</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.12</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.12</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junitversion}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${springversion}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>${loggingversion}</version>
        </dependency>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml</groupId>
            <artifactId>classmate</artifactId>
            <version>0.8.0</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.logging</groupId>
            <artifactId>jboss-logging</artifactId>
            <version>3.1.1.GA</version>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.1.0.CR1</version>
            <type>pom</type>
        </dependency>
        <!-- hibernate.validator -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>4.3.1.Final</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>${jacksonversion}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jacksonversion}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jacksonversion}</version>
        </dependency>
        <dependency>
    　　　　<groupId>commons-fileupload</groupId>
    　　　　<artifactId>commons-fileupload</artifactId>
    　　　　<version>1.2.1</version>
　　　　</dependency>
       <dependency>
    　　　　<groupId>commons-io</groupId>
    　　　　<artifactId>commons-io</artifactId>
    　　　　<version>2.0</version>
　　　　</dependency>
　　　　<dependency>
    　　　　<groupId>org.aspectj</groupId>
    　　　　<artifactId>aspectjweaver</artifactId>
    　　　　<version>1.6.12</version>
　　　　</dependency>
    </dependencies>
</project>

3.web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">

    <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>
    <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
    </init-param>
　　 </filter>
　　 <filter-mapping>
    　　<filter-name>CharacterEncodingFilter</filter-name>
    　　<url-pattern>/*</url-pattern>
　　 </filter-mapping>

    <filter>
        <filter-name>HiddenHttpMethodFilter</filter-name>
        <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>HiddenHttpMethodFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/applicationContext-*.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <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>

解释：

第一个CharacterEncodingFilter是用来转换springmvc字符集的，最好放在第一个过滤。

第二个HiddenHttpMethodFilter是用来支持REST风格的URL。

第三个ContextLoaderListener是用来监听启动spring容器的，使用的正则表达式匹配哪些application文件。

第四个dispatcherServlet是springmvc的控制器用来对请求进行控制转发的，它的url-pattern只能为/而不能为/*。

4.springmvc.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-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!-- 配置自动扫描的包 -->
    <context:component-scan base-package="com.atguigu.springmvc" use-default-filters="false">
        <context:include-filter type="annotation"
            expression="org.springframework.stereotype.Controller"/>
        <context:include-filter type="annotation"
            expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
    </context:component-scan>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
        <property name="order" value="100"></property>
    </bean>

    <bean id="messageSource"
        class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basename" value="i18n"></property>
    </bean>

    <mvc:view-controller path="/success" view-name="success"/>

    <mvc:default-servlet-handler/>

    <mvc:annotation-driven></mvc:annotation-driven>

    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="UTF-8"></property>
        <property name="maxUploadSize" value="1024000"></property>
    </bean>    

    <mvc:interceptors>
        <bean class="com.atguigu.springmvc.interceptors.FirstInterceptor"/>
    </mvc:interceptors>

</beans>

解释：

第一：context:component-scan只扫描特定注解的类。

第二：InternalResourceViewResolver视图解析器。

第三：BeanNameViewResolver自定义视图解析器。

第四：ResourceBundleMessageSource国际化。

第五：直接访问/success跳转到相应的视图。

第六：<mvc:default-servlet-handler/>让不能解析的url丢给服务器去默认解析，例如js,css文件。

第七：<mvc:annotation-driven>加载默认的HandlerMapper以及HandlerMapperAdapter。

第八：multipartResolver文件上传控制。

第九：FirstInterceptor拦截器。

5.applicationContext-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-4.0.xsd">

    <!-- 配置数据源, 整合其他框架, 事务等. -->
    <!-- 加载配置文件 -->
    <context:property-placeholder location="classpath:db.properties" />

    <!-- 数据源，使用dbcp -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
        destroy-method="close">
        <property name="driverClass" value="${jdbc.driverClass}" />
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}" />
        <property name="user" value="${jdbc.user}" />
        <property name="password" value="${jdbc.password}" />
        <property name="minPoolSize" value="${jdbc.miniPoolSize}" />
        <property name="maxPoolSize" value="${jdbc.maxPoolSize}" />
        <property name="initialPoolSize" value="${jdbc.initialPoolSize}" />
        <property name="maxIdleTime" value="${jdbc.maxIdleTime}" />
        <property name="acquireIncrement" value="${jdbc.acquireIncrement}" />

        <property name="acquireRetryAttempts" value="${jdbc.acquireRetryAttempts}" />
        <property name="acquireRetryDelay" value="${jdbc.acquireRetryDelay}" />
        <property name="testConnectionOnCheckin" value="${jdbc.testConnectionOnCheckin}" />
        <property name="automaticTestTable" value="${jdbc.automaticTestTable}" />
        <property name="idleConnectionTestPeriod" value="${jdbc.idleConnectionTestPeriod}" />
        <property name="checkoutTimeout" value="${jdbc.checkoutTimeout}" />

    </bean>

    <!-- sqlSessinFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 加载mybatis的配置文件 -->
        <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" />
        <!-- 数据源 -->
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!-- mapper配置 MapperFactoryBean：根据mapper接口生成代理对象，和下面方式二选一 -->
    <!-- <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="mapperInterface" value="com.alibaba.mapper.UserMapper"/>
        <property name="sqlSessionFactory" ref="sqlSessionFactory"/>
    </bean> -->

    <!-- mapper批量扫描，从mapper包中扫描出mapper接口，自动创建代理对象并且在spring容器中注册 遵循规范：将mapper.java和mapper.xml映射文件名称保持一致，且在一个目录
        中 自动扫描出来的mapper的bean的id为mapper类名（首字母小写） -->
    <!-- 指定扫描的包名 如果扫描多个包，每个包中间使用半角逗号分隔 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.atguigu.springmvc.crud.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

</beans>

6.db.properties

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.jdbcUrl = jdbc:mysql://localhost:3306/test
jdbc.user = root
jdbc.password = 123456
jdbc.miniPoolSize = 1
jdbc.maxPoolSize = 20
jdbc.initialPoolSize = 1
jdbc.maxIdleTime = 25000
jdbc.acquireIncrement = 1

jdbc.acquireRetryAttempts = 30
jdbc.acquireRetryDelay = 1000
jdbc.testConnectionOnCheckin = true
jdbc.automaticTestTable = c3p0TestTable
jdbc.idleConnectionTestPeriod = 18000
jdbc.checkoutTimeout=3000

7.SqlMapConfig.xml

<?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>

    <settings>
        <!-- 打开延迟加载 的开关 -->
        <setting name="lazyLoadingEnabled" value="true" />
        <!-- 将积极加载改为消极加载即按需要加载 -->
        <setting name="aggressiveLazyLoading" value="false" />
        <!-- 开启二级缓存 -->
        <setting name="cacheEnabled" value="true" />
    </settings>

    <!-- 别名定义 -->
    <typeAliases>

        <!-- 批量别名定义 指定包名，mybatis自动扫描包中的po类，自动定义别名，别名就是类名（首字母大写或小写都可以） -->
        <package name="com.atguigu.springmvc.crud.entities" />

    </typeAliases>

    <!-- 加载 映射文件 -->
    <mappers>
        <mapper resource="mybatis/UserMapper.xml" />

        <!-- 批量加载mapper 指定mapper接口的包名，mybatis自动扫描包下边所有mapper接口进行加载 遵循一些规范：需要将mapper接口类名和mapper.xml映射文件名称保持一致，且在一个目录
            中 上边规范的前提是：使用的是mapper代理方法 和spring整合后，使用mapper扫描器，这里不需要配置了 -->
        <!-- <package name="com.alibaba.mapper"/>  -->

    </mappers>

</configuration>

8.使用ehcache需要在对应的mapper.xml里开启缓存

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="test">

    <cache type="org.mybatis.caches.ehcache.EhcacheCache"/>

    <select id="getUser" parameterType="int"
        resultType="User">
        select id, name, age, gmt_create gmtCreate from users where id=#{id}
    </select>

    <insert id="insertUser" parameterType="user">
        <selectKey keyProperty="id" order="AFTER" resultType="java.lang.Integer">
            SELECT LAST_INSERT_ID()
        </selectKey>
        insert into users(name, age, gmt_create, money) VALUE ('xiao', 24, '1991-06-26', 10000)
    </insert>

    <select id="selectAny" resultType="user" parameterType="user">
        select id, name, age, gmt_create gmtCreate from users
        <where>
            <if test="ids!=null">
            and id in
                <foreach collection="ids" item="id" open="(" close=")" separator=",">
                    #{id}
                </foreach>
            </if>
        </where>
    </select>

    <select id="getSome" parameterType="user" resultType="user">
        select count(*) from users
    </select>

    <select id="getUserByTime" parameterType="Date" resultType="User">
        select id, name, age, gmt_create gmtCreate from users
        <![CDATA[
        where gmt_create >= #{sd}
        ]]>
    </select>

    <select id="getUserByWeek" resultType="User">
        select id, name, age, gmt_create gmtCreate from users
        <![CDATA[
        where gmt_create >= NOW() - interval 1 day
        ]]>
    </select>

</mapper>

其中的<cache type="org.mybatis.caches.ehcache.EhcacheCache"/>即开启c3p0缓冲池

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="../config/ehcache.xsd">
    <diskStore path="D:\develop\ehcache" />
    <defaultCache
        maxElementsInMemory="1000"
        maxElementsOnDisk="10000000"
        eternal="false"
        overflowToDisk="false"
        timeToIdleSeconds="120"
        timeToLiveSeconds="120"
        diskExpiryThreadIntervalSeconds="120"
        memoryStoreEvictionPolicy="LRU">
    </defaultCache>
</ehcache>

9.applicationContext-service.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    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-4.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-4.0.xsd ">
    <context:component-scan base-package="com.atguigu.springmvc">
        <context:exclude-filter type="annotation"
            expression="org.springframework.stereotype.Controller"/>
        <context:exclude-filter type="annotation"
            expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
    </context:component-scan>
    <bean id="userDao" class="com.atguigu.springmvc.crud.dao.UserDaoImpl">
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
    </bean>

</beans>

springmvc扫描过的类就不需要再扫描了，防止重复初始化。

10.applicationContext-transaction.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    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-4.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-4.0.xsd ">

<!-- 事务管理器
    对mybatis操作数据库事务控制，spring使用jdbc的事务控制类
-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <!-- 数据源
    dataSource在applicationContext-dao.xml中配置了
     -->
    <property name="dataSource" ref="dataSource"/>
</bean>

<!-- 通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
        <!-- 传播行为 -->
        <tx:method name="save*" propagation="REQUIRED"/>
        <tx:method name="delete*" propagation="REQUIRED"/>
        <tx:method name="insert*" propagation="REQUIRED"/>
        <tx:method name="update*" propagation="REQUIRED"/>
        <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
        <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
        <tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
    </tx:attributes>
</tx:advice>
<!-- aop -->
<aop:config>
    <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.atguigu.springmvc.crud.mapper.*.*(..))"/>
</aop:config>

</beans>

11.log4j.properties

# Global logging configuration
#\u5728\u5f00\u53d1\u73af\u5883\u4e0b\u65e5\u5fd7\u7ea7\u522b\u8981\u8bbe\u7f6e\u6210DEBUG\uff0c\u751f\u4ea7\u73af\u5883\u8bbe\u7f6e\u6210info\u6216error
log4j.rootLogger=INFO, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n