一、db.properties配置

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/database
jdbc.username=root
jdbc.password=123

二、log4j.properties配置

# Global logging configuration\uff0c\u5efa\u8bae\u5f00\u53d1\u73af\u5883\u4e2d\u8981\u7528debug
log4j.rootLogger=DEBUG, 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

三、SqlMapConfig.xml配置

<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <!-- 定义别名 -->
    <typeAliases>
        <!-- 批量别名定义 指定包路径，自动扫描包下边的pojo，定义别名，别名默认为类名（首字母小写或大写） -->
        <package name="po" />
    </typeAliases>

</configuration>

四、applicationContext.xml配置

<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-3.2.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.2.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

    <!-- 1.配置数据源 -->
    <!-- 加载配置文件 -->
    <context:property-placeholder location="classpath:db.properties" />
    <!-- 配置bdcp连接池 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="maxActive" value="10" />
        <property name="maxIdle" value="5" />
    </bean>
    <!-- 配置c3p0连接池: -->
    <bean id="dataSource2" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
        <!--每5小时检查所有连接池中的空闲连接。防止mysql wait_timeout（默认的为8小时） -->
        <property name="idleConnectionTestPeriod" value="18000"/>
    </bean>

    <!-- 2.SqlsessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 数据源 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- mybatis配置文件 -->
        <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"/>
    </bean>

    <!-- 3.MapperScannerConfigurer：mapper的扫描器，将包下边的mapper接口自动创建代理对象，
    自动创建到spring容器中，bean的id是mapper的类名（首字母小写） -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 配置扫描包的路径。如果要扫描多个包，中间使用半角逗号分隔 -->
        <property name="basePackage" value="mapper"/>
        <!-- 使用sqlSessionFactoryBeanName -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

    <!-- service包扫描 -->
    <context:component-scan base-package="service" />

    <!-- 使用声明式事务配置，可以有效规范代码 -->
    <!-- 1.事务管理器 -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 2.通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method name="append*" propagation="REQUIRED" />
            <tx:method name="save*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="modify*" propagation="REQUIRED" />
            <tx:method name="edit*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
            <tx:method name="remove*" propagation="REQUIRED" />
            <tx:method name="repair" propagation="REQUIRED" />

            <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="get*" propagation="REQUIRED" read-only="true" />
            <tx:method name="find*" propagation="REQUIRED" read-only="true" />
            <tx:method name="load*" propagation="REQUIRED" read-only="true" />
            <tx:method name="search*" propagation="REQUIRED" read-only="true" />
            <tx:method name="datagrid*" propagation="REQUIRED" read-only="true" />

            <tx:method name="*" propagation="REQUIRED" read-only="true" />
        </tx:attributes>
    </tx:advice>

    <!-- 3.aop -->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* service.impl.*.*(..))"/>
    </aop:config>

</beans>

<!--<tx:annotation-driven/> 就是支持事务注解的（@Transactional） 、<mvc:annotation-driven> 就是支持mvc注解的，说白了就是使Controller中可以使用MVC的各种注解-->
<!--<tx:annotation-driven transaction-manager="transactionManager"/>-->

关于Spring事务<tx:annotation-driven/>的理解（Controller可以使用@Transactional）

五、springmvc.xml配置

<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-3.2.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.2.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

    <!-- 1.使用spring组件扫描 -->
    <context:component-scan base-package="controller" />

    <!-- 2.通过annotation-driven可以替代下边的处理器映射器和适配器 -->
    <!-- 如果使用了<mvc:annotation-driven />，它会自动注册DefaultAnnotationHandlerMapping
    与AnnotationMethodHandlerAdapter这两个bean,所以就没有机会再给它注入interceptors属性，就无法指定拦截器。 -->
    <mvc:annotation-driven />
    <mvc:default-servlet-handler/>          <!-- 将无法mapping到Controller的path交给default servlet handler处理 -->

    <!--*注解处理器映射器（注释掉，mvc:annotation-driven已默认配置好） -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
    </bean>
    <!-- *注解适配器 -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
        <!-- 在webBindingInitializer中注入自定义属性编辑器、自定义转换器 -->
        <property name="webBindingInitializer">
            <bean class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
                <property name="conversionService" ref="conversionService" />
                <property name="validator" ref="validator" />
            </bean>
        </property>
    </bean>
    <bean id="conversionService" class="org.springframework.samples.petclinic.util.PetclinicConversionServiceFactory" />
    <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />


    <!-- 3.配置视图解析器ViewResolver。要求将jstl的包加到classpath -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--<property name="prefix" value="/WEB-INF/jsp/" />-->
        <property name="prefix" value="/" />     <!-- <property name="prefix" value="/WEB-INF/jsp" /> -->
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- @ResponseBody方法异常处理，处理json数据转换-->
    <bean id="mappingJackson2HttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
        <property name="objectMapper">
            <bean class="com.github.miemiedev.mybatis.paginator.jackson2.PageListJsonMapper" />
        </property>
    </bean>
    <bean class="com.github.miemiedev.smt.support.ResponseBodyHandlerExceptionResolver">
        <property name="messageConverter" ref="mappingJackson2HttpMessageConverter"/>
    </bean>

    <!-- 多个拦截器,顺序执行。先声明的拦截器中的preHandle方法会先执行，然而它的postHandle方法和afterCompletion方法却会后执行 -->
    <mvc:interceptors>
        <!-- 使用bean定义一个Interceptor，直接定义在mvc:interceptors根下面的Interceptor，将拦截所有的请求 -->
        <bean class="interceptor.LoginInterceptor"/>
        <mvc:interceptor>
            <mvc:mapping path="/**" />
            <mvc:mapping path="/*.do" />        <!-- 一级目录 -->
            <mvc:mapping path="/*/*.do" />      <!-- 二级目录 -->
            <!-- 定义在mvc:interceptor下面的表示是对特定的请求才进行拦截的 -->
            <bean class="interceptor.LoginInterceptor"/>
            <mvc:exclude-mapping path="/login.html"/>        <!-- 需排除拦截的地址 -->
        </mvc:interceptor>
    </mvc:interceptors>

</beans>

在mvc:interceptors标签下声明interceptor主要有两种方式：
（1）直接定义一个Interceptor实现类的bean对象。使用这种方式声明的Interceptor拦截器将会对所有的请求进行拦截。
（2）使用mvc:interceptor标签进行声明。使用这种方式进行声明的Interceptor可以通过mvc:mapping子标签来定义需要进行拦截的请求路径。

public class SecurityInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        HttpSession session = httpServletRequest.getSession(true);
        // 从session 里面获取用户名的信息
        Object obj = session.getAttribute("username");
        // 判断如果没有取到用户信息，就跳转到登陆页面，提示用户进行登陆
        if (obj == null || "".equals(obj.toString())) {
            httpServletResponse.sendRedirect("/login.jsp");
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}

六、web.xml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_3_1.xsd"
         version="3.1">

    <!-- 1.加载spring配置文件 -->
    <!-- 从类路径下加载Spring配置文件,classpath关键字特指类路径下加载 ,如果多个文件则使用逗号或空格隔开-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/applicationContext.xml</param-value>   <!--<param-value>/WEB-INF/classes/spring/applicationContext.xml</param-value>-->
    </context-param>


    <!-- 2.spring容器监听器，开启spring容器ApplicationContext，它将引用上面的上下文参数获得Spring配置文件地址 -->
    <!--加载器目前有两种选择：ContextLoaderListener和ContextLoaderServlet。通过以上配置，Web容器会自动加载/WEB-INF/applicationContext.xml初始化-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- 3.防止内存溢出监听器 -->
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    </listener>


    <!-- 4.前端控制器 -->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 加载springmvc配置 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!-- 配置文件的地址 如果不配置contextConfigLocation，默认查找的配置文件名称classpath下的：servlet名称+"-serlvet.xml"即：/WEB-INF/springmvc-serlvet.xml -->
            <param-value>classpath:spring/springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <!-- 5.springmvc配置servlet -->
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>


    <!-- 6.配置字符集过滤器 -->
    <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>
        <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>


    <!-- 7.欢迎界面 -->
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>


    <!-- 8.找不到页错误转向 -->
    <error-page>
        <error-code>404</error-code>
        <location>/error/404.jsp</location>
    </error-page>
    <!-- 系统内部错误转向 -->
    <error-page>
        <error-code>500</error-code>
        <location>/error/500.jsp</location>
    </error-page>
    <error-page>
        <exception-type>java.lang.Throwable</exception-type>
        <location>/error/500.jsp</location>
    </error-page>
    <error-page>
        <exception-type>org.springframework.web.util.NestedServletException</exception-type>
        <location>/error/500.jsp</location>
    </error-page>

</web-app>

手把手教你整合最优雅SSM框架：SpringMVC + Spring + MyBatis
SpringMVC中url-pattern /和/*的区别
SpringMVC中web.xml的url-pattern
Servlet的url-pattern匹配规则
Servlet学习一：web.xml中url-pattern匹配规则
表单form action的url写法
<url-pattern>/.action</url-pattern>
以/开头的是路径匹配 所以不能再用/.action来匹配 只能用//这样的形式
而（.）是后缀匹配