Idea构建maven项目：

步骤一：

步骤二：

自动导入Maven项目：

步骤三：增加web

二：搭建spring项目结构：

结构图：

网上都是一大堆的：自己也可以去搜：ssm  pom.xml   。。。。。。

1： pom.xml中的配置：

 <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/maven-v4_0_0.xsd">

   <modelVersion>4.0.0</modelVersion>

   <groupId>com.bangbang.web</groupId>

   <artifactId>bangbang-web</artifactId>

   <packaging>war</packaging>

   <version>1.0-SNAPSHOT</version>

   <name>bangbang-web Maven Webapp</name>

   <url>http://maven.apache.org</url>

   <properties>

     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

     <!-- spring版本号 -->

     <spring.version>4.2.5.RELEASE</spring.version>

     <!-- mybatis版本号 -->

     <mybatis.version>3.2.8</mybatis.version>

     <!-- mysql驱动版本号 -->

     <mysql-driver.version>5.1.29</mysql-driver.version>

     <!-- log4j日志包版本号 -->

     <slf4j.version>1.7.18</slf4j.version>

     <log4j.version>1.2.17</log4j.version>

   </properties>

   <dependencies>

     <!-- 添加jstl依赖 -->

     <dependency>

       <groupId>jstl</groupId>

       <artifactId>jstl</artifactId>

       <version>1.2</version>

     </dependency>

     <dependency>

       <groupId>javax</groupId>

       <artifactId>javaee-api</artifactId>

       <version>7.0</version>

     </dependency>

     <!-- 添加junit4依赖 -->

     <dependency>

       <groupId>junit</groupId>

       <artifactId>junit</artifactId>

       <version>4.11</version>

       <!-- 指定范围，在测试时才会加载 -->

       <scope>test</scope>

     </dependency>

     <!-- 添加spring核心依赖 -->

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-core</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-web</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-oxm</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-tx</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-jdbc</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-webmvc</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-context</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-context-support</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-aop</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <dependency>

       <groupId>org.springframework</groupId>

       <artifactId>spring-test</artifactId>

       <version>${spring.version}</version>

     </dependency>

     <!-- 添加mybatis依赖 -->

     <dependency>

       <groupId>org.mybatis</groupId>

       <artifactId>mybatis</artifactId>

       <version>${mybatis.version}</version>

     </dependency>

     <!-- 添加mybatis/spring整合包依赖 -->

     <dependency>

       <groupId>org.mybatis</groupId>

       <artifactId>mybatis-spring</artifactId>

       <version>1.2.2</version>

     </dependency>

     <!-- 添加mysql驱动依赖 -->

     <dependency>

       <groupId>mysql</groupId>

       <artifactId>mysql-connector-java</artifactId>

       <version>${mysql-driver.version}</version>

     </dependency>

     <!-- 添加数据库连接池依赖 -->

     <dependency>

       <groupId>commons-dbcp</groupId>

       <artifactId>commons-dbcp</artifactId>

       <version>1.2.2</version>

     </dependency>

     <!-- 添加fastjson -->

     <dependency>

       <groupId>com.alibaba</groupId>

       <artifactId>fastjson</artifactId>

       <version>1.1.41</version>

     </dependency>

     <!-- 添加日志相关jar包 -->

     <dependency>

       <groupId>log4j</groupId>

       <artifactId>log4j</artifactId>

       <version>${log4j.version}</version>

     </dependency>

     <dependency>

       <groupId>org.slf4j</groupId>

       <artifactId>slf4j-api</artifactId>

       <version>${slf4j.version}</version>

     </dependency>

     <dependency>

       <groupId>org.slf4j</groupId>

       <artifactId>slf4j-log4j12</artifactId>

       <version>${slf4j.version}</version>

     </dependency>

     <!-- log end -->

     <!-- 映入JSON -->

     <dependency>

       <groupId>org.codehaus.jackson</groupId>

       <artifactId>jackson-mapper-asl</artifactId>

       <version>1.9.13</version>

     </dependency>

     <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->

     <dependency>

       <groupId>com.fasterxml.jackson.core</groupId>

       <artifactId>jackson-core</artifactId>

       <version>2.8.0</version>

     </dependency>

     <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->

     <dependency>

       <groupId>com.fasterxml.jackson.core</groupId>

       <artifactId>jackson-databind</artifactId>

       <version>2.8.0</version>

     </dependency>

     <dependency>

       <groupId>commons-fileupload</groupId>

       <artifactId>commons-fileupload</artifactId>

       <version>1.3.1</version>

     </dependency>

     <dependency>

       <groupId>commons-io</groupId>

       <artifactId>commons-io</artifactId>

       <version>2.4</version>

     </dependency>

     <dependency>

       <groupId>commons-codec</groupId>

       <artifactId>commons-codec</artifactId>

       <version>1.9</version>

     </dependency>

   </dependencies>

   <build>

     <finalName>bangbang-web</finalName>

   </build>

 </project>

1-2: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>cn.e3mall</groupId>

     <artifactId>e3-parent</artifactId>

     <version>0.0.1-SNAPSHOT</version>

     <packaging>pom</packaging>

     <!-- 集中定义依赖版本号 -->

     <properties>

         <junit.version>4.12</junit.version>

         <spring.version>4.2.4.RELEASE</spring.version>

         <mybatis.version>3.2.8</mybatis.version>

         <mybatis.spring.version>1.2.2</mybatis.spring.version>

         <mybatis.paginator.version>1.2.15</mybatis.paginator.version>

         <mysql.version>5.1.32</mysql.version>

         <slf4j.version>1.6.4</slf4j.version>

         <jackson.version>2.4.2</jackson.version>

         <druid.version>1.0.9</druid.version>

         <httpclient.version>4.3.5</httpclient.version>

         <jstl.version>1.2</jstl.version>

         <servlet-api.version>2.5</servlet-api.version>

         <jsp-api.version>2.0</jsp-api.version>

         <joda-time.version>2.5</joda-time.version>

         <commons-lang3.version>3.3.2</commons-lang3.version>

         <commons-io.version>1.3.2</commons-io.version>

         <commons-net.version>3.3</commons-net.version>

         <pagehelper.version>3.4.2-fix</pagehelper.version>

         <jsqlparser.version>0.9.1</jsqlparser.version>

         <commons-fileupload.version>1.3.1</commons-fileupload.version>

         <jedis.version>2.7.2</jedis.version>

         <solrj.version>4.10.3</solrj.version>

         <dubbo.version>2.5.3</dubbo.version>

         <zookeeper.version>3.4.7</zookeeper.version>

         <zkclient.version>0.1</zkclient.version>

         <activemq.version>5.11.2</activemq.version>

         <freemarker.version>2.3.23</freemarker.version>

         <quartz.version>2.2.2</quartz.version>

     </properties>

     <dependencyManagement>

         <dependencies>

             <!-- 时间操作组件 -->

             <dependency>

                 <groupId>joda-time</groupId>

                 <artifactId>joda-time</artifactId>

                 <version>${joda-time.version}</version>

             </dependency>

             <!-- Apache工具组件 -->

             <dependency>

                 <groupId>org.apache.commons</groupId>

                 <artifactId>commons-lang3</artifactId>

                 <version>${commons-lang3.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.apache.commons</groupId>

                 <artifactId>commons-io</artifactId>

                 <version>${commons-io.version}</version>

             </dependency>

             <dependency>

                 <groupId>commons-net</groupId>

                 <artifactId>commons-net</artifactId>

                 <version>${commons-net.version}</version>

             </dependency>

             <!-- Jackson Json处理工具包 -->

             <dependency>

                 <groupId>com.fasterxml.jackson.core</groupId>

                 <artifactId>jackson-databind</artifactId>

                 <version>${jackson.version}</version>

             </dependency>

             <!-- httpclient -->

             <dependency>

                 <groupId>org.apache.httpcomponents</groupId>

                 <artifactId>httpclient</artifactId>

                 <version>${httpclient.version}</version>

             </dependency>

             <!-- quartz任务调度框架 -->

             <dependency>

                 <groupId>org.quartz-scheduler</groupId>

                 <artifactId>quartz</artifactId>

                 <version>${quartz.version}</version>

             </dependency>

             <!-- 单元测试 -->

             <dependency>

                 <groupId>junit</groupId>

                 <artifactId>junit</artifactId>

                 <version>${junit.version}</version>

                 <scope>test</scope>

             </dependency>

             <!-- 日志处理 -->

             <dependency>

                 <groupId>org.slf4j</groupId>

                 <artifactId>slf4j-log4j12</artifactId>

                 <version>${slf4j.version}</version>

             </dependency>

             <!-- Mybatis -->

             <dependency>

                 <groupId>org.mybatis</groupId>

                 <artifactId>mybatis</artifactId>

                 <version>${mybatis.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.mybatis</groupId>

                 <artifactId>mybatis-spring</artifactId>

                 <version>${mybatis.spring.version}</version>

             </dependency>

             <dependency>

                 <groupId>com.github.miemiedev</groupId>

                 <artifactId>mybatis-paginator</artifactId>

                 <version>${mybatis.paginator.version}</version>

             </dependency>

             <dependency>

                 <groupId>com.github.pagehelper</groupId>

                 <artifactId>pagehelper</artifactId>

                 <version>${pagehelper.version}</version>

             </dependency>

             <!-- MySql -->

             <dependency>

                 <groupId>mysql</groupId>

                 <artifactId>mysql-connector-java</artifactId>

                 <version>${mysql.version}</version>

             </dependency>

             <!-- 连接池 -->

             <dependency>

                 <groupId>com.alibaba</groupId>

                 <artifactId>druid</artifactId>

                 <version>${druid.version}</version>

             </dependency>

             <!-- Spring -->

             <dependency>

                 <groupId>org.springframework</groupId>

                 <artifactId>spring-context</artifactId>

                 <version>${spring.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.springframework</groupId>

                 <artifactId>spring-beans</artifactId>

                 <version>${spring.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.springframework</groupId>

                 <artifactId>spring-webmvc</artifactId>

                 <version>${spring.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.springframework</groupId>

                 <artifactId>spring-jdbc</artifactId>

                 <version>${spring.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.springframework</groupId>

                 <artifactId>spring-aspects</artifactId>

                 <version>${spring.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.springframework</groupId>

                 <artifactId>spring-jms</artifactId>

                 <version>${spring.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.springframework</groupId>

                 <artifactId>spring-context-support</artifactId>

                 <version>${spring.version}</version>

             </dependency>

             <!-- JSP相关 -->

             <dependency>

                 <groupId>jstl</groupId>

                 <artifactId>jstl</artifactId>

                 <version>${jstl.version}</version>

             </dependency>

             <dependency>

                 <groupId>javax.servlet</groupId>

                 <artifactId>servlet-api</artifactId>

                 <version>${servlet-api.version}</version>

                 <scope>provided</scope>

             </dependency>

             <dependency>

                 <groupId>javax.servlet</groupId>

                 <artifactId>jsp-api</artifactId>

                 <version>${jsp-api.version}</version>

                 <scope>provided</scope>

             </dependency>

             <!-- 文件上传组件 -->

             <dependency>

                 <groupId>commons-fileupload</groupId>

                 <artifactId>commons-fileupload</artifactId>

                 <version>${commons-fileupload.version}</version>

             </dependency>

             <!-- Redis客户端 -->

             <dependency>

                 <groupId>redis.clients</groupId>

                 <artifactId>jedis</artifactId>

                 <version>${jedis.version}</version>

             </dependency>

             <!-- solr客户端 -->

             <dependency>

                 <groupId>org.apache.solr</groupId>

                 <artifactId>solr-solrj</artifactId>

                 <version>${solrj.version}</version>

             </dependency>

             <!-- dubbo相关 -->

             <dependency>

                 <groupId>com.alibaba</groupId>

                 <artifactId>dubbo</artifactId>

                 <version>${dubbo.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.apache.zookeeper</groupId>

                 <artifactId>zookeeper</artifactId>

                 <version>${zookeeper.version}</version>

             </dependency>

             <dependency>

                 <groupId>com.github.sgroschupf</groupId>

                 <artifactId>zkclient</artifactId>

                 <version>${zkclient.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.apache.activemq</groupId>

                 <artifactId>activemq-all</artifactId>

                 <version>${activemq.version}</version>

             </dependency>

             <dependency>

                 <groupId>org.freemarker</groupId>

                 <artifactId>freemarker</artifactId>

                 <version>${freemarker.version}</version>

             </dependency>

         </dependencies>

     </dependencyManagement>

     <build>

         <finalName>${project.artifactId}</finalName>

         <plugins>

             <!-- 资源文件拷贝插件 -->

             <plugin>

                 <groupId>org.apache.maven.plugins</groupId>

                 <artifactId>maven-resources-plugin</artifactId>

                 <version>2.7</version>

                 <configuration>

                     <encoding>UTF-8</encoding>

                 </configuration>

             </plugin>

             <!-- java编译插件 -->

             <plugin>

                 <groupId>org.apache.maven.plugins</groupId>

                 <artifactId>maven-compiler-plugin</artifactId>

                 <version>3.2</version>

                 <configuration>

                     <source>1.7</source>

                     <target>1.7</target>

                     <encoding>UTF-8</encoding>

                 </configuration>

             </plugin>

         </plugins>

         <pluginManagement>

             <plugins>

                 <!-- 配置Tomcat插件 -->

                 <plugin>

                     <groupId>org.apache.tomcat.maven</groupId>

                     <artifactId>tomcat7-maven-plugin</artifactId>

                     <version>2.2</version>

                 </plugin>

             </plugins>

         </pluginManagement>

     </build>

 </project>

2   新建jdbc.properties文件
　　jdbc.properties

 driverClasss=com.mysql.jdbc.Driver

 jdbcUrl=jdbc:mysql://localhost:3306/li_test

 username=root

 password=admin

 #定义初始连接数

 initialSize=0

 #定义最大连接数

 maxActive=20

 #定义最大空闲

 maxIdle=20

 #定义最小空闲

 minIdle=1

 #定义最长等待时间

 maxWait=60000

3  新建log4j 配置文件
　　log4j.properties

 log4j.rootLogger=INFO,Console,File

 #控制台日志

 log4j.appender.Console=org.apache.log4j.ConsoleAppender

 log4j.appender.Console.Target=System.out

 log4j.appender.Console.layout=org.apache.log4j.PatternLayout

 log4j.appender.Console.layout.ConversionPattern=[%p][%t][%d{yyyy-MM-dd HH\:mm\:ss}][%C] - %m%n

 #普通文件日志

 log4j.appender.File=org.apache.log4j.RollingFileAppender

 log4j.appender.File.File=logs/ssm.log

 log4j.appender.File.MaxFileSize=10MB

 #输出日志，如果换成DEBUG表示输出DEBUG以上级别日志

 log4j.appender.File.Threshold=ALL

 log4j.appender.File.layout=org.apache.log4j.PatternLayout

 log4j.appender.File.layout.ConversionPattern=[%p][%t][%d{yyyy-MM-dd HH\:mm\:ss}][%C] - %m%n

4:spring-config.xml中的配置：

 <?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-3.1.xsd

                             http://www.springframework.org/schema/context

                             http://www.springframework.org/schema/context/spring-context-3.1.xsd

                             http://www.springframework.org/schema/tx

                             http://www.springframework.org/schema/tx/spring-tx.xsd">

     <!-- 自动扫描 -->

     <context:component-scan base-package="com.bangbang.web"/>

     <!-- 第一种方式：加载一个properties文件 -->

     <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

         <property name="location" value="classpath:jdbc.properties"/>

     </bean>

     <!-- 第二种方式：加载多个properties文件

     <bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">

         <property name="locations">

             <list>

                 <value>classpath:jdbc.properties</value>

                 <value>classpath:common.properties</value>

             </list>

         </property>

         <property name="fileEncoding" value="UTF-8"/>

     </bean>

     <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">

         <property name="properties" ref="configProperties"/>

     </bean>

     -->

     <!-- 配置数据源 -->

     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"

           destroy-method="close">

         <property name="driverClassName" value="${driverClasss}"/>

         <property name="url" value="${jdbcUrl}"/>

         <property name="username" value="${username}"/>

         <property name="password" value="${password}"/>

         <!-- 初始化连接大小 -->

         <property name="initialSize" value="${initialSize}"></property>

         <!-- 连接池最大数量 -->

         <property name="maxActive" value="${maxActive}"></property>

         <!-- 连接池最大空闲 -->

         <property name="maxIdle" value="${maxIdle}"></property>

         <!-- 连接池最小空闲 -->

         <property name="minIdle" value="${minIdle}"></property>

         <!-- 获取连接最大等待时间 -->

         <property name="maxWait" value="${maxWait}"></property>

     </bean>

     <!-- mybatis和spring完美整合，不需要mybatis的配置映射文件 -->

     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

         <property name="dataSource" ref="dataSource"/>

         <!-- 自动扫描mapping.xml文件 -->

       <!--  <property name="mapperLocations" value="classpath:mapping"></property>-->

     </bean>

     <!-- DAO接口所在包名，Spring会自动查找其下的类 -->

     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

         <property name="basePackage" value="com.bangbang.web.dao"/>

         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>

     </bean>

     <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

         <property name="dataSource" ref="dataSource"/>

     </bean>

     <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

     <tx:annotation-driven transaction-manager="transactionManager"/>

 </beans>

5: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"

        xsi:schemaLocation="http://www.springframework.org/schema/beans

                             http://www.springframework.org/schema/beans/spring-beans-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/mvc

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

     <!-- 自动扫描  @Controller-->

     <context:component-scan base-package="com.bangbang.web.controller"/>

     <!--避免IE执行AJAX时，返回JSON出现下载文件 -->

     <bean id="mappingJacksonHttpMessageConverter"

           class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

         <property name="supportedMediaTypes">

             <list>

                 <value>text/html;charset=UTF-8</value>

             </list>

         </property>

     </bean>

     <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->

     <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">

         <property name="messageConverters">

             <list>

                 <ref bean="mappingJacksonHttpMessageConverter"/> <!-- JSON转换器 -->

             </list>

         </property>

     </bean>

     <!-- 定义跳转的文件的前后缀 ，视图模式配置 -->

     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

         <property name="prefix" value="/WEB-INF/jsp/" />

         <property name="suffix" value=".jsp"/>

     </bean>

     <!-- 文件上传配置 -->

     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

         <!-- 默认编码 -->

         <property name="defaultEncoding" value="UTF-8"/>

         <!-- 上传文件大小限制为31M，31*1024*1024 -->

         <property name="maxUploadSize" value="32505856"/>

         <!-- 内存中的最大值 -->

         <property name="maxInMemorySize" value="4096"/>

     </bean>

 </beans>

6：mybaties的映射sql------Mapper：

sql语句改成自己的哦！！

 <?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="com.microClass.dao.ICataloguesDao">

 <select id="cataloguesList" resultType="com.microClass.model.Catalogues">

     SELECT cl.id, cl.course_name courseName, cl.course_img courseImg, cl.grade, cl.introduction, cl.course_length courseLength,

      cl.score, cl.knowledge ,cl.clickNum FROM catalogues AS cl

     </select>

 </mapper>

6：web.xml中配置：

 <?xml version="1.0" encoding="UTF-8"?>

 <web-app xmlns="http://java.sun.com/xml/ns/javaee"

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

          xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

               http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"

          version="3.0">

   <display-name>bangbang-web</display-name>

   <context-param>

     <param-name>contextConfigLocation</param-name>

     <param-value>classpath:spring-mybatis.xml</param-value>

   </context-param>

   <context-param>

     <param-name>log4jConfigLocation</param-name>

     <param-value>classpath:log4j.properties</param-value>

   </context-param>

   <!-- 编码过滤器 -->

   <filter>

     <filter-name>encodingFilter</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>

   </filter>

   <filter-mapping>

     <filter-name>encodingFilter</filter-name>

     <url-pattern>/*</url-pattern>

   </filter-mapping>

   <!-- spring监听器 -->

   <listener>

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

   </listener>

   <!-- 防止spring内存溢出监听器，比如quartz -->

   <listener>

     <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>

   </listener>

   <!-- spring mvc servlet-->

   <servlet>

     <servlet-name>SpringMVC</servlet-name>

     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

     <init-param>

       <param-name>contextConfigLocation</param-name>

       <param-value>classpath:spring-mvc.xml</param-value>

     </init-param>

     <load-on-startup>1</load-on-startup>

     <async-supported>true</async-supported>

   </servlet>

   <servlet-mapping>

     <servlet-name>SpringMVC</servlet-name>

     <!-- 此处也可以配置成 *.do 形式 -->

     <url-pattern>/</url-pattern>

   </servlet-mapping>

   <welcome-file-list>

     <welcome-file>/index.jsp</welcome-file>

   </welcome-file-list>

   <!-- session配置 -->

   <session-config>

     <session-timeout>15</session-timeout>

   </session-config>

   <!-- springMVC有个拦截器会拦截js css这些引用文件,配置以下取消拦截 -->

   <servlet-mapping>

     <servlet-name>default</servlet-name>

     <url-pattern>*.css</url-pattern>

   </servlet-mapping>

   <servlet-mapping>

     <servlet-name>default</servlet-name>

     <url-pattern>*.gif</url-pattern>

   </servlet-mapping>

   <servlet-mapping>

     <servlet-name>default</servlet-name>

     <url-pattern>*.jpg</url-pattern>

   </servlet-mapping>

   <servlet-mapping>

     <servlet-name>default</servlet-name>

     <url-pattern>*.png</url-pattern>

   </servlet-mapping>

   <servlet-mapping>

     <servlet-name>default</servlet-name>

     <url-pattern>*.js</url-pattern>

   </servlet-mapping>

 </web-app>

6-2版本：

<?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>log4jConfigLocation</param-name>

        <param-value>classpath:log4j.properties</param-value>

    </context-param>

    <!-- 编码过滤器 -->

    <filter>

        <filter-name>encodingFilter</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>

    </filter>

    <filter-mapping>

        <filter-name>encodingFilter</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>

    <!-- spring监听器 -->

    <listener>

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

    </listener>

    <!-- 防止spring内存溢出监听器，比如quartz -->

    <listener>

        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>

    </listener>

    <!-- spring mvc servlet-->

    <servlet>

        <servlet-name>SpringMVC</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>classpath:spring-config.xml</param-value>

        </init-param>

        <load-on-startup>1</load-on-startup>

        <async-supported>true</async-supported>

    </servlet>

    <servlet-mapping>

        <servlet-name>SpringMVC</servlet-name>

        <!-- 此处也可以配置成 *.do 形式 -->

        <url-pattern>/</url-pattern>

    </servlet-mapping>

    <welcome-file-list>

        <welcome-file>/index.jsp</welcome-file>

    </welcome-file-list>

    <!-- session配置 -->

    <session-config>

        <session-timeout>15</session-timeout>

    </session-config>

    <!-- springMVC有个拦截器会拦截js css这些引用文件,配置以下取消拦截 -->

    <servlet-mapping>

        <servlet-name>default</servlet-name>

        <url-pattern>*.css</url-pattern>

        <url-pattern>*.gif</url-pattern>

        <url-pattern>*.jpg</url-pattern>

        <url-pattern>*.png</url-pattern>

        <url-pattern>*.js</url-pattern>

    </servlet-mapping>

</web-app>

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