大家好，我是雄雄，今天来带着大家来配置一下SSM（spring+springmvc+
mybatis）框架。
01
新建java web项目
直接在myeclipse中，新建一个web项目即可。
02
导入jar包
将SSM所需的jar包复制到项目的/WebRoot/WEB-INF/lib中，在这里我整理了下，大致需要34个jar文件，复制完之后，选中所有jar包，右击—Build Path-->Add to Build Path。
03
配置web.xml文件。
web.xml文件需要配置三部分信息，spring、springmvc以及解决springmvc传值乱码的过滤器，分别如下：
spring配置信息：
<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>
springmvc配置信息：
<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:springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>
设置编码格式的过滤器信息：
<!-- 解决springmvc传递值乱码问题 --> <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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
04
配置Spring配置文件
applicationContext.xml文件，里面需要包含这些信息：用来连接数据库的数据源信息
<!-- 配置数据源--> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"></property> <property name="url" value="jdbc:mysql://localhost:3306/schooldb"></property> <property name="username" value="root"></property> <property name="password" value="root"></property> </bean>
加载mybatis-config.xml文件以及sql映射文件的SqlSessionFactory：
<!--sqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="configLocation" value="classpath:mybatis-config.xml"></property> <property name="mapperLocations"> <list> <value>classpath:org/dao/*.xml</value> </list> </property> </bean>
Mapper注入映射器的MapperScannerConfigurer：
<!-- 配置自动映射器 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="org.dao"></property> </bean>
最后就是扫描注解的配置：
<!-- 扫描所有注解信息 --> <context:component-scan base-package="org.dao,org.service,org.web"/> <mvc:annotation-driven/>
05
配置springmvc的信息
springmvc-servlet.xml中需要包含最基本的两个部分，扫描注解和springmvc请求的前缀后缀设置：
<!-- 扫描注解 --> <context:component-scan base-package="org.web,org.dao,org.service"/> <mvc:annotation-driven/> <!-- 配置前缀和后缀 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"></property> <property name="suffix" value=".jsp"></property> </bean>
06
配置mybatis配置文件
本文件简单点，就配置个别名和打印sql语句就行，都是可选的：
<?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> <!-- 打印sql语句 --> <setting name="logImpl" value="STDOUT_LOGGING" /> </settings> <!-- 起别名 --> <typeAliases> <package name="org.entity"/> </typeAliases> </configuration>
附录：
spring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:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/p http://www.springframework.org/schema/p/spring-p-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd "> <!-- 配置数据源--> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"></property> <property name="url" value="jdbc:mysql://localhost:3306/schooldb"></property> <property name="username" value="root"></property> <property name="password" value="root"></property> </bean> <!--sqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="configLocation" value="classpath:mybatis-config.xml"></property> <property name="mapperLocations"> <list> <value>classpath:org/dao/*.xml</value> </list> </property> </bean> <!-- 配置自动映射器 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="org.dao"></property> </bean> <!-- 扫描所有注解信息 --> <context:component-scan base-package="org.dao,org.service,org.web"/> <mvc:annotation-driven/> </beans>
springmvc配置文件（springmvc-servlet.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:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/p http://www.springframework.org/schema/p/spring-p-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd "> <!-- 扫描注解 --> <context:component-scan base-package="org.web,org.dao,org.service"/> <mvc:annotation-driven/> <!-- 配置前缀和后缀 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans>
web.xml文件：
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" 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"> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- springmvc的配置 --> <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:springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- spring --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 监听配置 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 解决springmvc传递值乱码问题 --> <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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
配置到此结束，明天带着大家实现一遍SSM的增删改查案例。
